Explore APIs
16,231 OpenAPI descriptions. Read the docs, compare revisions or generate a client.
Collections
New this month
6,808 APIs added in the last 30 days.
The biggest APIs
The APIs with the most operations.
Most active
Most new revisions in the last 90 days.
All APIs
16,231- UD245 operations2 revisionsuData API@dados/udata-api
Open data portal: search and publish datasets, organizations, reuses and discussions
- LI228 operations117 revisionsLithic Developer API@lithic-com/lithic-developer-api
Card issuing: manage cards, accounts, transfers, disputes, auth rules and 3DS challenges
- CR13 operations1 revisionCriminal Applications Datastore - v1Retired@ministryofjustice/criminal-applications-datastore-v1
Criminal justice: store and search criminal applications, documents and maat records
- BR89 operations53 revisionsbrapi - API do Mercado Financeiro Brasileiro@brapi-dev/brapi-api-do-mercado-financeiro-brasileiro
Cotações, FIIs, fundos, opções, câmbio, cripto e Tesouro Direto para o mercado brasileiro
- MY865 operations153 revisionsMyaltimate API@myaltimate/myaltimate-api
Data platform: manage queries, tables, dbt models, lineage, cost summaries and user groups
- RO210 operations190 revisionsRoark Analytics API@roarkhq/roark-analytics-api
Voice AI agents: test, simulate and analyse calls, chats, metrics and customer flows
- OP388 operations99 revisionsOpenAI API@omnistack-sh/openai-api
AI models: generate text and speech, transcribe audio, embed text, and manage files and batches
- YN44 operations12 revisionsYNAB API Endpoints@ynab/ynab-api-endpoints
Budgeting: read and write plans, accounts, categories, payees, months and transactions
- HT47 operations13 revisionsHTML/CSS to Image API@htmlcsstoimage/html-css-to-image-api
Images: render HTML/CSS and screenshots, manage templates, OG configs and webhooks
- OP388 operations566 revisionsOpenAI API@openai/openai-api-4
AI models: generate text and speech, transcribe audio, embed text, manage files and batches
- IM116 operations65 revisionsimperfect-api@imperfect/imperfect-api
Fitness and health: manage goals, plans, events, routes and health provider connections
- GL45 operations206 revisionsGlean Indexing API@gleanwork/glean-indexing-api
Search: push documents, people, permissions and shortcuts into an enterprise search index
- LU271 operations42 revisionsLudo.ai API@ludo/ludo-ai-api
Game-art generation: create images, sprites, 3D models, video, and sound effects from text or images
- TE457 operations181 revisionsTessl API@tessl/tessl-api
Tile and skill catalog, evals, code reviews, workspaces, orgs and API keys for AI agent tooling
- GL91 operations187 revisionsGlean API@gleanwork/glean-api
Enterprise search: index custom content, query documents and people, manage chats, agents and collections
- EN304 operations132 revisionsEntire API@entire/entire-api
Developer platform API for AI coding sessions: repos, commits, trails, sessions, memories, code search and dispatches
- DO237 operations16 revisionsdomani.run API@domani/domani-run-api
Domains: search, register and manage domain names, DNS records, email health and backorders
- CI29 operations6 revisionsCircleback Public API@circleback/circleback-public-api
Meeting notes, transcripts and action items: read, update and organize meetings, folders and tags
- VE482 operations176 revisionsVercel API@vercel/vercel-api
Frontend hosting and deployments: manage projects, domains, DNS, env vars, sandboxes and team access
- GL18 operations206 revisionsGlean Rest Admin API@gleanwork/glean-rest-admin-api
Governance and datasources: manage data policies, reports, document visibility, and datasource credentials and config
- LO170 operations28 revisionsLobeHub API@lobehub/lobehub-api
AI agent platform: chat with agents, manage files, knowledge bases, goals, plugins and API keys
- PE23 operations11 revisionsPending You person API@pendingyou/pending-you-person-api
Pending You: read and answer your assistants' requests, cards, changes and show requests
- GL61 operations141 revisionsGlean Platform API@gleanwork/glean-platform-api
Enterprise search and AI: search content, run chat and agents, manage skills, triggers, users and usage limits
- SI140 operations11 revisionsSirenic API@sirenic/sirenic-api
Company data: French and European company profiles, risk scores, KYB checks and public tender alerts
Showing 1 to 24 of 16,231
Load more