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README.md

Y Combinator companies API

This repository contains an unofficial API for Y Combinator companies fetched from the Y Combinator website's Algolia search index. It only includes publicly launched companies with pages on the Y Combinator website. It does not scrape the Y Combinator website, instead it uses the Algolia search index to fetch the companies in a GitHub Actions workflow that runs every day. When company records change, the workflow also publishes a daily change summary in JSON and Markdown at changes/latest.json and changes/latest.md, so you can review what YC changed without digging through the full repository diff.

โ„น๏ธ Metadata

API endpoint: https://yc-oss.github.io/api/meta.json

  • Last updated: September 15, 2026 at 2:33 AM
  • Companies: 6220
  • Batches: 50
  • Industries: 59
  • Tags: 337

๐Ÿ’ป APIs

๐Ÿข Companies

List of companiesAPI endpoint
All launched companieshttps://yc-oss.github.io/api/companies/all.json
Top companieshttps://yc-oss.github.io/api/companies/top.json
Black-founded companieshttps://yc-oss.github.io/api/companies/black-founded.json
Hispanic/Latino-founded companieshttps://yc-oss.github.io/api/companies/hispanic-latino-founded.json
Women-founded companieshttps://yc-oss.github.io/api/companies/women-founded.json
Not-for-profit companieshttps://yc-oss.github.io/api/companies/nonprofit.json
Companies currently hiringhttps://yc-oss.github.io/api/companies/hiring.json
Companies with public application videoshttps://yc-oss.github.io/api/companies/app-video-public.json
Companies with public demo day videoshttps://yc-oss.github.io/api/companies/demo-day-video-public.json

๐Ÿ”„ Company changes

Change logAPI endpoint
Latest company changes (JSON)https://yc-oss.github.io/api/changes/latest.json
Latest company changes (Markdown)https://yc-oss.github.io/api/changes/latest.md

๐ŸŽ“ Batches

Companies per batch
BatchCountAPI endpoint
Winter 201266https://yc-oss.github.io/api/batches/winter-2012.json
Summer 201160https://yc-oss.github.io/api/batches/summer-2011.json
Winter 201145https://yc-oss.github.io/api/batches/winter-2011.json
Summer 201036https://yc-oss.github.io/api/batches/summer-2010.json
Winter 201027https://yc-oss.github.io/api/batches/winter-2010.json
Summer 200926https://yc-oss.github.io/api/batches/summer-2009.json
Winter 200916https://yc-oss.github.io/api/batches/winter-2009.json
Summer 200822https://yc-oss.github.io/api/batches/summer-2008.json
Winter 200821https://yc-oss.github.io/api/batches/winter-2008.json
Summer 200719https://yc-oss.github.io/api/batches/summer-2007.json
Winter 200713https://yc-oss.github.io/api/batches/winter-2007.json
Summer 200610https://yc-oss.github.io/api/batches/summer-2006.json
Winter 20067https://yc-oss.github.io/api/batches/winter-2006.json
Summer 20059https://yc-oss.github.io/api/batches/summer-2005.json
Summer 201283https://yc-oss.github.io/api/batches/summer-2012.json
Winter 201346https://yc-oss.github.io/api/batches/winter-2013.json
Summer 201352https://yc-oss.github.io/api/batches/summer-2013.json
Winter 201474https://yc-oss.github.io/api/batches/winter-2014.json
Summer 201478https://yc-oss.github.io/api/batches/summer-2014.json
Winter 2015110https://yc-oss.github.io/api/batches/winter-2015.json
Summer 2015104https://yc-oss.github.io/api/batches/summer-2015.json
Winter 2016122https://yc-oss.github.io/api/batches/winter-2016.json
Summer 2017125https://yc-oss.github.io/api/batches/summer-2017.json
Summer 2016102https://yc-oss.github.io/api/batches/summer-2016.json
Winter 2017116https://yc-oss.github.io/api/batches/winter-2017.json
Winter 2018146https://yc-oss.github.io/api/batches/winter-2018.json
Summer 2018131https://yc-oss.github.io/api/batches/summer-2018.json
Summer 2019176https://yc-oss.github.io/api/batches/summer-2019.json
Winter 2019194https://yc-oss.github.io/api/batches/winter-2019.json
Winter 2020228https://yc-oss.github.io/api/batches/winter-2020.json
Summer 2020209https://yc-oss.github.io/api/batches/summer-2020.json
Winter 2021336https://yc-oss.github.io/api/batches/winter-2021.json
Summer 2021391https://yc-oss.github.io/api/batches/summer-2021.json
Winter 2022398https://yc-oss.github.io/api/batches/winter-2022.json
Summer 2022233https://yc-oss.github.io/api/batches/summer-2022.json
Fall 2025146https://yc-oss.github.io/api/batches/fall-2025.json
Winter 2023274https://yc-oss.github.io/api/batches/winter-2023.json
Summer 2023220https://yc-oss.github.io/api/batches/summer-2023.json
Summer 2026234https://yc-oss.github.io/api/batches/summer-2026.json
Winter 2026199https://yc-oss.github.io/api/batches/winter-2026.json
Winter 2024248https://yc-oss.github.io/api/batches/winter-2024.json
Winter 2025165https://yc-oss.github.io/api/batches/winter-2025.json
Spring 2026193https://yc-oss.github.io/api/batches/spring-2026.json
Summer 2024248https://yc-oss.github.io/api/batches/summer-2024.json
Fall 202494https://yc-oss.github.io/api/batches/fall-2024.json
Spring 2025143https://yc-oss.github.io/api/batches/spring-2025.json
Summer 2025166https://yc-oss.github.io/api/batches/summer-2025.json
Fall 202657https://yc-oss.github.io/api/batches/fall-2026.json
Winter 20271https://yc-oss.github.io/api/batches/winter-2027.json
Unspecified1https://yc-oss.github.io/api/batches/unspecified.json

๐Ÿญ Industries

Companies per industry
IndustryCountAPI endpoint
Agriculture31https://yc-oss.github.io/api/industries/agriculture.json
Analytics125https://yc-oss.github.io/api/industries/analytics.json
Apparel and Cosmetics49https://yc-oss.github.io/api/industries/apparel-and-cosmetics.json
Asset Management55https://yc-oss.github.io/api/industries/asset-management.json
Automotive21https://yc-oss.github.io/api/industries/automotive.json
Aviation and Space66https://yc-oss.github.io/api/industries/aviation-and-space.json
B2B3166https://yc-oss.github.io/api/industries/b2b.json
Banking and Exchange73https://yc-oss.github.io/api/industries/banking-and-exchange.json
Climate53https://yc-oss.github.io/api/industries/climate.json
Construction51https://yc-oss.github.io/api/industries/construction.json
Consumer884https://yc-oss.github.io/api/industries/consumer.json
Consumer Electronics47https://yc-oss.github.io/api/industries/consumer-electronics.json
Consumer Finance90https://yc-oss.github.io/api/industries/consumer-finance.json
Consumer Health and Wellness117https://yc-oss.github.io/api/industries/consumer-health-and-wellness.json
Content117https://yc-oss.github.io/api/industries/content.json
Credit and Lending74https://yc-oss.github.io/api/industries/credit-and-lending.json
Defense24https://yc-oss.github.io/api/industries/defense.json
Diagnostics58https://yc-oss.github.io/api/industries/diagnostics.json
Drones23https://yc-oss.github.io/api/industries/drones.json
Drug Discovery and Delivery59https://yc-oss.github.io/api/industries/drug-discovery-and-delivery.json
Education124https://yc-oss.github.io/api/industries/education.json
Energy52https://yc-oss.github.io/api/industries/energy.json
Engineering, Product and Design621https://yc-oss.github.io/api/industries/engineering-product-and-design.json
Finance and Accounting140https://yc-oss.github.io/api/industries/finance-and-accounting.json
Fintech659https://yc-oss.github.io/api/industries/fintech.json
Food and Beverage94https://yc-oss.github.io/api/industries/food-and-beverage.json
Gaming69https://yc-oss.github.io/api/industries/gaming.json
Government43https://yc-oss.github.io/api/industries/government.json
Healthcare699https://yc-oss.github.io/api/industries/healthcare.json
Healthcare IT142https://yc-oss.github.io/api/industries/healthcare-it.json
Healthcare Services74https://yc-oss.github.io/api/industries/healthcare-services.json
Home and Personal123https://yc-oss.github.io/api/industries/home-and-personal.json
Housing and Real Estate85https://yc-oss.github.io/api/industries/housing-and-real-estate.json
Human Resources82https://yc-oss.github.io/api/industries/human-resources.json
Industrial Bio34https://yc-oss.github.io/api/industries/industrial-bio.json
Industrials465https://yc-oss.github.io/api/industries/industrials.json
Infrastructure325https://yc-oss.github.io/api/industries/infrastructure.json
Insurance71https://yc-oss.github.io/api/industries/insurance.json
Job and Career Services19https://yc-oss.github.io/api/industries/job-and-career-services.json
Legal60https://yc-oss.github.io/api/industries/legal.json
Manufacturing and Robotics151https://yc-oss.github.io/api/industries/manufacturing-and-robotics.json
Marketing168https://yc-oss.github.io/api/industries/marketing.json
Medical Devices44https://yc-oss.github.io/api/industries/medical-devices.json
Office Management25https://yc-oss.github.io/api/industries/office-management.json
Operations153https://yc-oss.github.io/api/industries/operations.json
Payments124https://yc-oss.github.io/api/industries/payments.json
Productivity231https://yc-oss.github.io/api/industries/productivity.json
Real Estate and Construction162https://yc-oss.github.io/api/industries/real-estate-and-construction.json
Recruiting and Talent76https://yc-oss.github.io/api/industries/recruiting-and-talent.json
Retail128https://yc-oss.github.io/api/industries/retail.json
Sales135https://yc-oss.github.io/api/industries/sales.json
Security121https://yc-oss.github.io/api/industries/security.json
Social111https://yc-oss.github.io/api/industries/social.json
Supply Chain and Logistics138https://yc-oss.github.io/api/industries/supply-chain-and-logistics.json
Therapeutics64https://yc-oss.github.io/api/industries/therapeutics.json
Transportation Services27https://yc-oss.github.io/api/industries/transportation-services.json
Travel, Leisure and Tourism36https://yc-oss.github.io/api/industries/travel-leisure-and-tourism.json
Unspecified18https://yc-oss.github.io/api/industries/unspecified.json
Virtual and Augmented Reality20https://yc-oss.github.io/api/industries/virtual-and-augmented-reality.json

๐Ÿท๏ธ Tags

Companies per tag
TagCountAPI endpoint
3D Printed Foods1https://yc-oss.github.io/api/tags/3d-printed-foods.json
3D Printing12https://yc-oss.github.io/api/tags/3d-printing.json
Advanced Materials9https://yc-oss.github.io/api/tags/advanced-materials.json
Advertising48https://yc-oss.github.io/api/tags/advertising.json
Aerospace45https://yc-oss.github.io/api/tags/aerospace.json
Agriculture34https://yc-oss.github.io/api/tags/agriculture.json
AI894https://yc-oss.github.io/api/tags/ai.json
AI Assistant163https://yc-oss.github.io/api/tags/ai-assistant.json
AI-Enhanced Learning47https://yc-oss.github.io/api/tags/ai-enhanced-learning.json
AI-powered Drug Discovery36https://yc-oss.github.io/api/tags/ai-powered-drug-discovery.json
AIOps64https://yc-oss.github.io/api/tags/aiops.json
Air Taxis5https://yc-oss.github.io/api/tags/air-taxis.json
Airlines5https://yc-oss.github.io/api/tags/airlines.json
Airplanes12https://yc-oss.github.io/api/tags/airplanes.json
Alternative Battery Tech2https://yc-oss.github.io/api/tags/alternative-battery-tech.json
Alternative Fuels2https://yc-oss.github.io/api/tags/alternative-fuels.json
Analytics187https://yc-oss.github.io/api/tags/analytics.json
Anti-Aging7https://yc-oss.github.io/api/tags/anti-aging.json
API142https://yc-oss.github.io/api/tags/api.json
APIs11https://yc-oss.github.io/api/tags/apis.json
Apparel4https://yc-oss.github.io/api/tags/apparel.json
AR7https://yc-oss.github.io/api/tags/ar.json
Architecture5https://yc-oss.github.io/api/tags/architecture.json
Art Trading Platforms1https://yc-oss.github.io/api/tags/art-trading-platforms.json
Artificial Intelligence1012https://yc-oss.github.io/api/tags/artificial-intelligence.json
Assistive Tech6https://yc-oss.github.io/api/tags/assistive-tech.json
Augmented Reality23https://yc-oss.github.io/api/tags/augmented-reality.json
Auto Commerce5https://yc-oss.github.io/api/tags/auto-commerce.json
Automation98https://yc-oss.github.io/api/tags/automation.json
Automotive24https://yc-oss.github.io/api/tags/automotive.json
Autonomous Delivery8https://yc-oss.github.io/api/tags/autonomous-delivery.json
Autonomous Shipping2https://yc-oss.github.io/api/tags/autonomous-shipping.json
Autonomous Trucking11https://yc-oss.github.io/api/tags/autonomous-trucking.json
B2B1126https://yc-oss.github.io/api/tags/b2b.json
Banking as a Service26https://yc-oss.github.io/api/tags/banking-as-a-service.json
Batteryless IoT Sensors1https://yc-oss.github.io/api/tags/batteryless-iot-sensors.json
Beauty11https://yc-oss.github.io/api/tags/beauty.json
Big Data29https://yc-oss.github.io/api/tags/big-data.json
Billing6https://yc-oss.github.io/api/tags/billing.json
Biometrics7https://yc-oss.github.io/api/tags/biometrics.json
Bioplastic3https://yc-oss.github.io/api/tags/bioplastic.json
Biotech150https://yc-oss.github.io/api/tags/biotech.json
Biotechnology18https://yc-oss.github.io/api/tags/biotechnology.json
Blockchain2https://yc-oss.github.io/api/tags/blockchain.json
Booking2https://yc-oss.github.io/api/tags/booking.json
Calendar6https://yc-oss.github.io/api/tags/calendar.json
Call Center9https://yc-oss.github.io/api/tags/call-center.json
Cannabis7https://yc-oss.github.io/api/tags/cannabis.json
Carbon Capture and Removal12https://yc-oss.github.io/api/tags/carbon-capture-and-removal.json
Careers5https://yc-oss.github.io/api/tags/careers.json
Cashierless Checkout5https://yc-oss.github.io/api/tags/cashierless-checkout.json
Cell Therapy5https://yc-oss.github.io/api/tags/cell-therapy.json
Cellular Agriculture6https://yc-oss.github.io/api/tags/cellular-agriculture.json
Chat6https://yc-oss.github.io/api/tags/chat.json
Chatbot9https://yc-oss.github.io/api/tags/chatbot.json
Chatbots3https://yc-oss.github.io/api/tags/chatbots.json
China3https://yc-oss.github.io/api/tags/china.json
Civic Tech8https://yc-oss.github.io/api/tags/civic-tech.json
Clean Meat1https://yc-oss.github.io/api/tags/clean-meat.json
Climate140https://yc-oss.github.io/api/tags/climate.json
ClimateTech32https://yc-oss.github.io/api/tags/climatetech.json
Cloud Computing52https://yc-oss.github.io/api/tags/cloud-computing.json
Cloud Gaming2https://yc-oss.github.io/api/tags/cloud-gaming.json
Cloud Workload Protection5https://yc-oss.github.io/api/tags/cloud-workload-protection.json
Coding Bootcamps2https://yc-oss.github.io/api/tags/coding-bootcamps.json
Collaboration44https://yc-oss.github.io/api/tags/collaboration.json
Commercial Space Launch6https://yc-oss.github.io/api/tags/commercial-space-launch.json
Community59https://yc-oss.github.io/api/tags/community.json
Compliance74https://yc-oss.github.io/api/tags/compliance.json
Computational Storage1https://yc-oss.github.io/api/tags/computational-storage.json
Computer Vision78https://yc-oss.github.io/api/tags/computer-vision.json
Construction75https://yc-oss.github.io/api/tags/construction.json
Consumer249https://yc-oss.github.io/api/tags/consumer.json
Consumer Finance32https://yc-oss.github.io/api/tags/consumer-finance.json
Consumer Health Services108https://yc-oss.github.io/api/tags/consumer-health-services.json
Consumer Products13https://yc-oss.github.io/api/tags/consumer-products.json
Conversational AI47https://yc-oss.github.io/api/tags/conversational-ai.json
Conversational Banking2https://yc-oss.github.io/api/tags/conversational-banking.json
COVID-194https://yc-oss.github.io/api/tags/covid-19.json
Creator Economy36https://yc-oss.github.io/api/tags/creator-economy.json
CRISPR4https://yc-oss.github.io/api/tags/crispr.json
CRM21https://yc-oss.github.io/api/tags/crm.json
Crowdfunding9https://yc-oss.github.io/api/tags/crowdfunding.json
Crowdsourcing5https://yc-oss.github.io/api/tags/crowdsourcing.json
Crypto / Web394https://yc-oss.github.io/api/tags/crypto-web3.json
Cryptocurrency11https://yc-oss.github.io/api/tags/cryptocurrency.json
Cryptography3https://yc-oss.github.io/api/tags/cryptography.json
Cultivated Meat2https://yc-oss.github.io/api/tags/cultivated-meat.json
Culture3https://yc-oss.github.io/api/tags/culture.json
Cultured Meat3https://yc-oss.github.io/api/tags/cultured-meat.json
Customer Service23https://yc-oss.github.io/api/tags/customer-service.json
Customer Success27https://yc-oss.github.io/api/tags/customer-success.json
Customer Support30https://yc-oss.github.io/api/tags/customer-support.json
Customization2https://yc-oss.github.io/api/tags/customization.json
Cyber Insurance1https://yc-oss.github.io/api/tags/cyber-insurance.json
Cybersecurity49https://yc-oss.github.io/api/tags/cybersecurity.json
DAO2https://yc-oss.github.io/api/tags/dao.json
Data Engineering107https://yc-oss.github.io/api/tags/data-engineering.json
Data Labeling19https://yc-oss.github.io/api/tags/data-labeling.json
Data Science32https://yc-oss.github.io/api/tags/data-science.json
Data Visualization30https://yc-oss.github.io/api/tags/data-visualization.json
Databases24https://yc-oss.github.io/api/tags/databases.json
Dating6https://yc-oss.github.io/api/tags/dating.json
Deep Learning45https://yc-oss.github.io/api/tags/deep-learning.json
Deepfake Detection1https://yc-oss.github.io/api/tags/deepfake-detection.json
Defense29https://yc-oss.github.io/api/tags/defense.json
DeFi12https://yc-oss.github.io/api/tags/defi.json
Delivery54https://yc-oss.github.io/api/tags/delivery.json
Dental5https://yc-oss.github.io/api/tags/dental.json
Design30https://yc-oss.github.io/api/tags/design.json
Design Tools57https://yc-oss.github.io/api/tags/design-tools.json
Developer Tools551https://yc-oss.github.io/api/tags/developer-tools.json
DevOps51https://yc-oss.github.io/api/tags/devops.json
DevSecOps33https://yc-oss.github.io/api/tags/devsecops.json
Diagnostics32https://yc-oss.github.io/api/tags/diagnostics.json
Digital Freight Brokerage3https://yc-oss.github.io/api/tags/digital-freight-brokerage.json
Digital Health116https://yc-oss.github.io/api/tags/digital-health.json
Diversity & Inclusion3https://yc-oss.github.io/api/tags/diversity-and-inclusion.json
Documents33https://yc-oss.github.io/api/tags/documents.json
Drones34https://yc-oss.github.io/api/tags/drones.json
Drug Delivery6https://yc-oss.github.io/api/tags/drug-delivery.json
Drug discovery34https://yc-oss.github.io/api/tags/drug-discovery.json
E-Commerce40https://yc-oss.github.io/api/tags/e-commerce.json
Edge Computing Semiconductors4https://yc-oss.github.io/api/tags/edge-computing-semiconductors.json
Edtech21https://yc-oss.github.io/api/tags/edtech.json
Education164https://yc-oss.github.io/api/tags/education.json
eLearning52https://yc-oss.github.io/api/tags/elearning.json
Election Tech2https://yc-oss.github.io/api/tags/election-tech.json
Electric Vehicles23https://yc-oss.github.io/api/tags/electric-vehicles.json
Electronics13https://yc-oss.github.io/api/tags/electronics.json
Email26https://yc-oss.github.io/api/tags/email.json
Emerging Markets9https://yc-oss.github.io/api/tags/emerging-markets.json
Energy53https://yc-oss.github.io/api/tags/energy.json
Energy Storage14https://yc-oss.github.io/api/tags/energy-storage.json
Enterprise114https://yc-oss.github.io/api/tags/enterprise.json
Enterprise Software134https://yc-oss.github.io/api/tags/enterprise-software.json
Entertainment52https://yc-oss.github.io/api/tags/entertainment.json
eSports3https://yc-oss.github.io/api/tags/esports.json
Exascale Computing1https://yc-oss.github.io/api/tags/exascale-computing.json
Fashion20https://yc-oss.github.io/api/tags/fashion.json
Feedback6https://yc-oss.github.io/api/tags/feedback.json
Femtech5https://yc-oss.github.io/api/tags/femtech.json
Fertility Tech8https://yc-oss.github.io/api/tags/fertility-tech.json
Finance101https://yc-oss.github.io/api/tags/finance.json
FinOps31https://yc-oss.github.io/api/tags/finops.json
Fintech706https://yc-oss.github.io/api/tags/fintech.json
Fitness19https://yc-oss.github.io/api/tags/fitness.json
Food9https://yc-oss.github.io/api/tags/food.json
Food & Beverage30https://yc-oss.github.io/api/tags/food-and-beverage.json
Food Service Robots & Machines10https://yc-oss.github.io/api/tags/food-service-robots-and-machines.json
Food Tech47https://yc-oss.github.io/api/tags/food-tech.json
Fraud Detection11https://yc-oss.github.io/api/tags/fraud-detection.json
Fraud Prevention5https://yc-oss.github.io/api/tags/fraud-prevention.json
Fundraising3https://yc-oss.github.io/api/tags/fundraising.json
Furniture6https://yc-oss.github.io/api/tags/furniture.json
Fusion Energy3https://yc-oss.github.io/api/tags/fusion-energy.json
Gaming86https://yc-oss.github.io/api/tags/gaming.json
Gardening1https://yc-oss.github.io/api/tags/gardening.json
Gene Therapy14https://yc-oss.github.io/api/tags/gene-therapy.json
Generative AI255https://yc-oss.github.io/api/tags/generative-ai.json
Genetic Engineering4https://yc-oss.github.io/api/tags/genetic-engineering.json
Genomics28https://yc-oss.github.io/api/tags/genomics.json
Geographic Information System7https://yc-oss.github.io/api/tags/geographic-information-system.json
Ghost Kitchens11https://yc-oss.github.io/api/tags/ghost-kitchens.json
GovTech52https://yc-oss.github.io/api/tags/govtech.json
GraphQL3https://yc-oss.github.io/api/tags/graphql.json
Grocery32https://yc-oss.github.io/api/tags/grocery.json
Hard Tech136https://yc-oss.github.io/api/tags/hard-tech.json
Hardware167https://yc-oss.github.io/api/tags/hardware.json
Health & Wellness49https://yc-oss.github.io/api/tags/health-and-wellness.json
Health Insurance29https://yc-oss.github.io/api/tags/health-insurance.json
Health Tech173https://yc-oss.github.io/api/tags/health-tech.json
Healthcare213https://yc-oss.github.io/api/tags/healthcare.json
Healthcare IT38https://yc-oss.github.io/api/tags/healthcare-it.json
Home Automation4https://yc-oss.github.io/api/tags/home-automation.json
Home Services18https://yc-oss.github.io/api/tags/home-services.json
Housing19https://yc-oss.github.io/api/tags/housing.json
HR Tech75https://yc-oss.github.io/api/tags/hr-tech.json
Human Resources22https://yc-oss.github.io/api/tags/human-resources.json
Hydrogen Energy4https://yc-oss.github.io/api/tags/hydrogen-energy.json
Identity16https://yc-oss.github.io/api/tags/identity.json
Immigration6https://yc-oss.github.io/api/tags/immigration.json
Income Share Agreements4https://yc-oss.github.io/api/tags/income-share-agreements.json
India35https://yc-oss.github.io/api/tags/india.json
Indoor Mapping2https://yc-oss.github.io/api/tags/indoor-mapping.json
Industrial35https://yc-oss.github.io/api/tags/industrial.json
Industrial Workplace Safety4https://yc-oss.github.io/api/tags/industrial-workplace-safety.json
Infrastructure134https://yc-oss.github.io/api/tags/infrastructure.json
Insurance87https://yc-oss.github.io/api/tags/insurance.json
International6https://yc-oss.github.io/api/tags/international.json
Investing64https://yc-oss.github.io/api/tags/investing.json
Investments8https://yc-oss.github.io/api/tags/investments.json
IoT44https://yc-oss.github.io/api/tags/iot.json
IoT Security2https://yc-oss.github.io/api/tags/iot-security.json
Kids9https://yc-oss.github.io/api/tags/kids.json
Kubernetes14https://yc-oss.github.io/api/tags/kubernetes.json
Lab-on-a-chip1https://yc-oss.github.io/api/tags/lab-on-a-chip.json
Latin America20https://yc-oss.github.io/api/tags/latin-america.json
Legal40https://yc-oss.github.io/api/tags/legal.json
LegalTech57https://yc-oss.github.io/api/tags/legaltech.json
Lending17https://yc-oss.github.io/api/tags/lending.json
Lidar1https://yc-oss.github.io/api/tags/lidar.json
Live6https://yc-oss.github.io/api/tags/live.json
Livestock Health1https://yc-oss.github.io/api/tags/livestock-health.json
Location-based3https://yc-oss.github.io/api/tags/location-based.json
Logistics133https://yc-oss.github.io/api/tags/logistics.json
Machine Learning238https://yc-oss.github.io/api/tags/machine-learning.json
Manufacturing102https://yc-oss.github.io/api/tags/manufacturing.json
Maritime3https://yc-oss.github.io/api/tags/maritime.json
Market Research18https://yc-oss.github.io/api/tags/market-research.json
Marketing112https://yc-oss.github.io/api/tags/marketing.json
Marketplace307https://yc-oss.github.io/api/tags/marketplace.json
Media42https://yc-oss.github.io/api/tags/media.json
Medical Devices66https://yc-oss.github.io/api/tags/medical-devices.json
Medical Robotics5https://yc-oss.github.io/api/tags/medical-robotics.json
Mental Health9https://yc-oss.github.io/api/tags/mental-health.json
Mental Health Tech36https://yc-oss.github.io/api/tags/mental-health-tech.json
Messaging42https://yc-oss.github.io/api/tags/messaging.json
Metaverse8https://yc-oss.github.io/api/tags/metaverse.json
Microfluidics5https://yc-oss.github.io/api/tags/microfluidics.json
Microinsurance3https://yc-oss.github.io/api/tags/microinsurance.json
Mining6https://yc-oss.github.io/api/tags/mining.json
ML21https://yc-oss.github.io/api/tags/ml.json
Mobility13https://yc-oss.github.io/api/tags/mobility.json
Monitoring16https://yc-oss.github.io/api/tags/monitoring.json
Music20https://yc-oss.github.io/api/tags/music.json
Nanomedicine5https://yc-oss.github.io/api/tags/nanomedicine.json
Nanosensors5https://yc-oss.github.io/api/tags/nanosensors.json
Nanotechnology10https://yc-oss.github.io/api/tags/nanotechnology.json
Navigation4https://yc-oss.github.io/api/tags/navigation.json
Neobank51https://yc-oss.github.io/api/tags/neobank.json
Networks4https://yc-oss.github.io/api/tags/networks.json
Neurotechnology18https://yc-oss.github.io/api/tags/neurotechnology.json
Next-gen Network Security5https://yc-oss.github.io/api/tags/next-gen-network-security.json
NFT4https://yc-oss.github.io/api/tags/nft.json
NLP21https://yc-oss.github.io/api/tags/nlp.json
No-code33https://yc-oss.github.io/api/tags/no-code.json
Nonprofit26https://yc-oss.github.io/api/tags/nonprofit.json
Note-taking5https://yc-oss.github.io/api/tags/note-taking.json
Notifications2https://yc-oss.github.io/api/tags/notifications.json
Oncology22https://yc-oss.github.io/api/tags/oncology.json
Open Source172https://yc-oss.github.io/api/tags/open-source.json
Operations39https://yc-oss.github.io/api/tags/operations.json
Payments146https://yc-oss.github.io/api/tags/payments.json
Payroll16https://yc-oss.github.io/api/tags/payroll.json
Pediatrics3https://yc-oss.github.io/api/tags/pediatrics.json
Personalization13https://yc-oss.github.io/api/tags/personalization.json
Plant-based Meat2https://yc-oss.github.io/api/tags/plant-based-meat.json
Podcasts7https://yc-oss.github.io/api/tags/podcasts.json
Primary Care8https://yc-oss.github.io/api/tags/primary-care.json
Privacy20https://yc-oss.github.io/api/tags/privacy.json
Procurement14https://yc-oss.github.io/api/tags/procurement.json
Productivity169https://yc-oss.github.io/api/tags/productivity.json
Proptech85https://yc-oss.github.io/api/tags/proptech.json
Psychedelics1https://yc-oss.github.io/api/tags/psychedelics.json
Quantum Computing4https://yc-oss.github.io/api/tags/quantum-computing.json
Radar3https://yc-oss.github.io/api/tags/radar.json
Real Estate83https://yc-oss.github.io/api/tags/real-estate.json
Recommendation System4https://yc-oss.github.io/api/tags/recommendation-system.json
Recruiting69https://yc-oss.github.io/api/tags/recruiting.json
Referrals2https://yc-oss.github.io/api/tags/referrals.json
Regtech20https://yc-oss.github.io/api/tags/regtech.json
Reinforcement Learning43https://yc-oss.github.io/api/tags/reinforcement-learning.json
Remittances6https://yc-oss.github.io/api/tags/remittances.json
Remote6https://yc-oss.github.io/api/tags/remote.json
Remote Work16https://yc-oss.github.io/api/tags/remote-work.json
Renewable Energy19https://yc-oss.github.io/api/tags/renewable-energy.json
Restaurant Tech16https://yc-oss.github.io/api/tags/restaurant-tech.json
Retail49https://yc-oss.github.io/api/tags/retail.json
Retail Tech18https://yc-oss.github.io/api/tags/retail-tech.json
Reviews3https://yc-oss.github.io/api/tags/reviews.json
Ridesharing2https://yc-oss.github.io/api/tags/ridesharing.json
Robotic Process Automation33https://yc-oss.github.io/api/tags/robotic-process-automation.json
Robotic Surgery3https://yc-oss.github.io/api/tags/robotic-surgery.json
Robotics149https://yc-oss.github.io/api/tags/robotics.json
Rocketry4https://yc-oss.github.io/api/tags/rocketry.json
SaaS1099https://yc-oss.github.io/api/tags/saas.json
Sales119https://yc-oss.github.io/api/tags/sales.json
Sales Enablement39https://yc-oss.github.io/api/tags/sales-enablement.json
Satellites23https://yc-oss.github.io/api/tags/satellites.json
Scheduling12https://yc-oss.github.io/api/tags/scheduling.json
Search18https://yc-oss.github.io/api/tags/search.json
Security93https://yc-oss.github.io/api/tags/security.json
Security Orchestration, Automation and Response (SOAR)1https://yc-oss.github.io/api/tags/security-orchestration-automation-and-response-(soar).json
Self-Driving Vehicles6https://yc-oss.github.io/api/tags/self-driving-vehicles.json
Semiconductors20https://yc-oss.github.io/api/tags/semiconductors.json
SEO5https://yc-oss.github.io/api/tags/seo.json
Skincare2https://yc-oss.github.io/api/tags/skincare.json
Sleep Tech9https://yc-oss.github.io/api/tags/sleep-tech.json
Small Modular Reactors2https://yc-oss.github.io/api/tags/small-modular-reactors.json
Smart Clothing5https://yc-oss.github.io/api/tags/smart-clothing.json
Smart Home Assistants7https://yc-oss.github.io/api/tags/smart-home-assistants.json
Smart Locks1https://yc-oss.github.io/api/tags/smart-locks.json
Smart Waste Management1https://yc-oss.github.io/api/tags/smart-waste-management.json
SMB19https://yc-oss.github.io/api/tags/smb.json
SMS7https://yc-oss.github.io/api/tags/sms.json
Social74https://yc-oss.github.io/api/tags/social.json
Social Media33https://yc-oss.github.io/api/tags/social-media.json
Social Network22https://yc-oss.github.io/api/tags/social-network.json
Solar Power20https://yc-oss.github.io/api/tags/solar-power.json
Space Exploration20https://yc-oss.github.io/api/tags/space-exploration.json
Speech Recognition6https://yc-oss.github.io/api/tags/speech-recognition.json
Sports Tech16https://yc-oss.github.io/api/tags/sports-tech.json
Stocks6https://yc-oss.github.io/api/tags/stocks.json
Subscriptions37https://yc-oss.github.io/api/tags/subscriptions.json
Supply Chain93https://yc-oss.github.io/api/tags/supply-chain.json
Sustainability16https://yc-oss.github.io/api/tags/sustainability.json
Sustainable Agriculture3https://yc-oss.github.io/api/tags/sustainable-agriculture.json
Sustainable Fashion8https://yc-oss.github.io/api/tags/sustainable-fashion.json
Sustainable Tourism3https://yc-oss.github.io/api/tags/sustainable-tourism.json
Swarm AI1https://yc-oss.github.io/api/tags/swarm-ai.json
Swarm Robotics4https://yc-oss.github.io/api/tags/swarm-robotics.json
Synthetic Biology33https://yc-oss.github.io/api/tags/synthetic-biology.json
Talent Acquisition7https://yc-oss.github.io/api/tags/talent-acquisition.json
Team Collaboration14https://yc-oss.github.io/api/tags/team-collaboration.json
Telecommunications27https://yc-oss.github.io/api/tags/telecommunications.json
Telehealth30https://yc-oss.github.io/api/tags/telehealth.json
Telemedicine30https://yc-oss.github.io/api/tags/telemedicine.json
Therapeutics45https://yc-oss.github.io/api/tags/therapeutics.json
Ticketing2https://yc-oss.github.io/api/tags/ticketing.json
Time Series4https://yc-oss.github.io/api/tags/time-series.json
Trading19https://yc-oss.github.io/api/tags/trading.json
Transportation38https://yc-oss.github.io/api/tags/transportation.json
Travel49https://yc-oss.github.io/api/tags/travel.json
Trust & Safety3https://yc-oss.github.io/api/tags/trust-and-safety.json
Unmanned Vehicle4https://yc-oss.github.io/api/tags/unmanned-vehicle.json
Vaccines1https://yc-oss.github.io/api/tags/vaccines.json
Vertical Farming2https://yc-oss.github.io/api/tags/vertical-farming.json
Video90https://yc-oss.github.io/api/tags/video.json
Virtual Reality14https://yc-oss.github.io/api/tags/virtual-reality.json
VR Health2https://yc-oss.github.io/api/tags/vr-health.json
Warehouse Management Tech14https://yc-oss.github.io/api/tags/warehouse-management-tech.json
Weather3https://yc-oss.github.io/api/tags/weather.json
Web Development21https://yc-oss.github.io/api/tags/web-development.json
Women's Health15https://yc-oss.github.io/api/tags/women's-health.json
Workflow Automation79https://yc-oss.github.io/api/tags/workflow-automation.json

๐Ÿ“€ Schema

Each endpoint (with the exception of meta.json) returns an array of objects. Each object has the following properties:

PropertyTypeDescription
idnumberThe company's ID decided by Y Combinator
namestringThe company's name
slugstringThe company's human-readable slug
former_namesstring[]The company's former names, if the company was renamed
small_logo_thumb_urlstringThe URL of the company's logo as a square hosted by Y Combinator
websitestringThe company's website URL
all_locationsstringThe company's locations separated by colons (;)
long_descriptionstringThe company's long description
one_linerstringThe company's one-liner description
team_sizenumberThe company's team size
highlight_blackbooleanWhether the company is highlighted for Black founders
highlight_latinxbooleanWhether the company is highlighted for Hispanic/Latino founders
highlight_womenbooleanWhether the company is highlighted for women founders
industrystringThe company's industry
subindustrystringThe company's subindustry
launched_atnumberThe company's launch date as a Unix timestamp
tagsstring[]The company's tags
top_companybooleanWhether the company is a top company
isHiringbooleanWhether the company is hiring
nonprofitbooleanWhether the company is a nonprofit
batchstringThe company's batch
statusstringThe company's status
industriesstring[]The company's industries
regionsstring[]The company's regions
stagestringThe company's stage
app_video_publicbooleanWhether the company's app video is public
demo_day_video_publicbooleanWhether the company's demo day video is public
app_answersobjectThe company's app answers
question_answersbooleanWhether the company's question answers are public
urlstringThe company's URL on the Y Combinator website
apistringThe company's API endpoint from this repository

YC also exposes signed S3 URLs for some application and demo day videos, but those URLs expire quickly. This API stores the durable app_video_public and demo_day_video_public booleans, and provides matching filtered endpoints, instead of publishing stale signed media URLs.

For example, the airbnb.json endpoint returns the following object:

{
  "id": 271,
  "name": "Airbnb",
  "slug": "airbnb",
  "former_names": [],
  "small_logo_thumb_url": "https://bookface-images.s3.amazonaws.com/small_logos/3e9a0092bee2ccf926e650e59c06503ec6b9ee65.png",
  "website": "http://airbnb.com",
  "all_locations": "San Francisco, CA, USA",
  "long_description": "Founded in August of 2008 and based in San Francisco, California, Airbnb is a trusted community marketplace for people to list, discover, and book unique accommodations around the world โ€” online or from a mobile phone. Whether an apartment for a night, a castle for a week, or a villa for a month, Airbnb connects people to unique travel experiences, at any price point, in more than 33,000 cities and 192 countries. And with world-class customer service and a growing community of users, Airbnb is the easiest way for people to monetize their extra space and showcase it to an audience of millions.  \r\n\r\nNo global movement springs from individuals. It takes an entire team united behind something big. Together, we work hard, we laugh a lot, we brainstorm nonstop, we use hundreds of Post-Its a week, and we give the best high-fives in town. Headquartered in San Francisco, we have satellite offices in Dublin, London, Barcelona, Paris, Milan, Copenhagen, Berlin, Moscow, Sรฃo Paolo, Sydney, and Singapore.",
  "one_liner": "Book accommodations around the world.",
  "team_size": 6132,
  "highlight_black": false,
  "highlight_latinx": false,
  "highlight_women": false,
  "industry": "Consumer",
  "subindustry": "Consumer -> Travel, Leisure and Tourism",
  "launched_at": 1326790856,
  "tags": ["Marketplace", "Travel"],
  "tags_highlighted": [],
  "top_company": true,
  "isHiring": false,
  "nonprofit": false,
  "batch": "W09",
  "status": "Public",
  "industries": ["Consumer", "Travel, Leisure and Tourism"],
  "regions": ["United States of America", "America / Canada"],
  "stage": "Growth",
  "app_video_public": false,
  "demo_day_video_public": false,
  "app_answers": null,
  "question_answers": false,
  "url": "https://www.ycombinator.com/companies/airbnb",
  "api": "https://yc-oss.github.io/api/batches/w09/airbnb.json"
}

Here are first 10 companies from the Top Companies API (https://yc-oss.github.io/api/companies/top.json):

LogoNameOne-liner
PlanGridMobile applications for the construction industry.
GustoProvides growing businesses with everything to take care of their team.
MatterportTurn physical objects and environments into 3D models in seconds.
AmplitudeDigital Analytics Platform.
SendwaveInstant, no fee international remittances.
CodecademyThe leading online learning platform for technical skills.
SegmentSoftware and APIs to collect, clean, and control customer data.
HelloSigneSignature software for small and mid-market businesses.
FivestarsCustomer loyalty and payments platform for small businesses.
GOAT GroupPlatform for the greatest products from the past, present and future.

ๅ…ณไบŽ About

๐Ÿ“Ž Public API for companies funded by Y Combinator
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