Explore APIs
17,352 OpenAPI descriptions. Read the docs, compare revisions or generate a client.
Collections
New this month
6,279 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
17,352- BO11 operations18 revisionsBoxLite Runner API@boxlite-ai/boxlite-runner-api
Sandbox boxes: create, start, stop, recover, destroy, and set network rules
- CL3,794 operations1,926 revisionsCloudflare API@cloudflare/cloudflare
Networking, security and edge services: manage DNS, tunnels, Workers, WAF rules, Access policies and Radar threat data
- WI72 operations26 revisionsWill Be Done API@will-be-done/will-be-done-api
Task management: manage spaces, projects, tasks, daily lists, mindmaps and attachments
- ZE39 operations35 revisionsZenBPM OpenAPI@pbinitiative/zenbpm-openapi
Workflow automation: deploy BPMN and DMN definitions, run process instances, handle jobs, messages and incidents
- JU194 operations780 revisionsJunction API@tryvital/junction-api
Health data: user wearable timeseries, lab tests, testkit orders, and provider connections
- GI19 operations19 revisionsgit-pkgs proxy API@git-pkgs/git-pkgs-proxy-api
Package proxy: cache, enrich and scan packages, browse artifacts, push archives and track project SBOMs
- FL63 operations15 revisionsFlows API@quivaworks/quiva-ai-gateway-3
Workflow automation: build, run, schedule and monitor flows, nodes and OAuth integrations
- NE40 operations170 revisionsNEAR Protocol JSON RPC API@near/near-protocol-json-rpc-api-3
Blockchain: query accounts, contracts and blocks, and broadcast transactions to the NEAR network
- EM17 operations1,024 revisionsEmails@hubspot/crm-emails
CRM activity: log, search, update and link email conversations to contacts and deals
- CU13 operations1,179 revisionsCustom Objects@hubspot/crm-custom-objects
CRM: create, read, update, search and merge custom object records
- RE181 operations588 revisionsRefly AI@refly-ai/refly-ai
- PA6 operations1,154 revisionsPartner Services@hubspot/crm-partner-services
CRM: read, search, batch-update and edit HubSpot partner service records
- DI17 operations1,056 revisionsDiscounts@hubspot/crm-discounts
CRM: manage discount records, search, batch updates, merges and associations with deals
- SK106 operations155 revisionsSkyvern API@skyvern-ai/skyvern-api-2
Browser automation: run AI agents and tasks, manage runs, credentials, browser sessions and profiles
- HE353 operations204 revisionsHephaestus API@hephaestus-build/hephaestus-api
Developer practice reviews, feedback, standings and LLM spend tracking for engineering workspaces
- OT420 operations429 revisionsotari@mozilla-ai/otari
AI gateway: route OpenAI-compatible chat and audio calls, manage API keys, budgets, and usage tracing
- AU18 operations281 revisionsAutomation Actions V4@hubspot/automation-actions-v4
CRM workflows: create, update and delete custom actions, their functions and revisions
- MA449 operations72 revisionsMain Frontend API@rage/rage
Courses: create courses, chapters and pages, manage certificates, glossaries, exams and student credit registrations
- LI14 operations1,049 revisionsLine Items@hubspot/crm-line-items
CRM: create, read, update, search and archive products attached to deals and quotes
- RA7 operations34 revisionsRacksDB REST API@rackslab/racksdb-rest-api
Data centers: query racks, nodes, infrastructures and tags, and render drawings
- SE17 operations1,085 revisionsServices@hubspot/crm-services
CRM records: create, read, search, batch-update and merge contacts, deals and other objects, with associations
- CR17 operations980 revisionsCRM Postal Mail@hubspot/crm-postal-mail
CRM: create, search, update and archive postal mail records and their associations
- CO17 operations1,092 revisionsCourses@hubspot/crm-courses
CRM: manage course records with search, batch updates, associations and GDPR deletion
- CM8 operations339 revisionsCMS Source Code@hubspot/cms-source-code
HubSpot CMS source: create, read, update, delete and validate project files, and extract zip archives
Showing 1 to 24 of 17,352
Load more