Tags

Browse APIs by what they do — faceted, scored, and ranked across the apis.io network.

15799 scored tags 81 canonical 349 established 554 emerging

Canonical tags 81 core

The most broadly-adopted, quality-lifted, well-clustered tags across the network.

Artificial Intelligence 57.2
4460 providers582 APIs
domain
MCP 44.6
1428 providers1270 APIs
schema
Fintech 43.6
2111 providers38 APIs
industry
Payments 42.8
1533 providers1008 APIs
resource · domain
E-Commerce 42.6
1791 providers323 APIs
domain
Webhook 40.8
650 providers1539 APIs
resource · schema
Identity Federation 39.8
289 providers243 APIs
domain · schema · industry
Healthcare 38.3
2228 providers173 APIs
industry
OAI-PMH 38.0
160 providers302 APIs
schema
Blockchain 37.9
731 providers161 APIs
domain · schema
Higher Education 37.7
328 providers10 APIs
industry
Agents 37.4
493 providers853 APIs
domain · schema
Authentication 37.3
390 providers2046 APIs
action
University 37.1
259 providers10 APIs
industry
Retail 36.4
1089 providers81 APIs
industry
SAML 36.2
47 providers297 APIs
domain · schema
AI Agents 36.2
1025 providers324 APIs
domain · schema
Agent-Native 35.9
452 providers277 APIs
schema · resource
Web3 35.9
594 providers61 APIs
domain · schema
Analytics 35.8
1079 providers768 APIs
domain
Financial Services 35.5
1199 providers59 APIs
industry
Research Data 35.3
167 providers240 APIs
industry
Developer Tools 35.1
1010 providers194 APIs
persona · schema
Cryptocurrency 35.1
736 providers175 APIs
domain
User 35.0
7 providers1725 APIs
resource
Education 34.7
780 providers122 APIs
industry
CKAN 34.6
180 providers203 APIs
schema
Account 34.5
15 providers1087 APIs
resource
Machine Learning 34.4
1108 providers149 APIs
domain
A2A 34.2
424 providers216 APIs
domain · schema
Real-Time 33.9
412 providers354 APIs
schema
JSON 33.9
24 providers258 APIs
schema
Security 33.8
911 providers512 APIs
domain
Library 33.7
180 providers413 APIs
industry
Open Data 33.7
572 providers527 APIs
schema · resource
Research Repository 33.4
153 providers154 APIs
industry · schema
Catalog 33.3
50 providers662 APIs
resource
SSO 33.1
72 providers307 APIs
domain
Marketing 33.1
582 providers100 APIs
domain
Open Access 33.0
139 providers231 APIs
industry
Action API 33.0
0 providers168 APIs
resource
Market Data 33.0
290 providers323 APIs
resource · domain
Data Catalog 33.0
214 providers25 APIs
resource
DCAT 32.9
183 providers8 APIs
schema
Order 32.9
89 providers760 APIs
resource
FHIR 32.8
168 providers167 APIs
schema
Marketplace 32.7
1096 providers170 APIs
domain
Compliance 32.7
797 providers288 APIs
domain
Shibboleth 32.6
34 providers188 APIs
industry · schema
Observability 32.4
342 providers202 APIs
domain
Event 32.4
200 providers1169 APIs
resource
REST 32.3
138 providers962 APIs
schema
Automation 32.3
751 providers356 APIs
action
New Payments Platform 32.2
5 providers6 APIs
domain
Monitoring 32.1
245 providers283 APIs
action
CRM 32.0
375 providers187 APIs
domain
Messaging 31.9
356 providers248 APIs
domain
Government Data 31.9
208 providers3 APIs
industry
Logistics 31.9
712 providers163 APIs
domain
Life Sciences 31.8
1090 providers9 APIs
industry
Campaigns 31.7
43 providers226 APIs
resource · domain
Connections 31.7
1 providers137 APIs
resource · domain
A2A Verified 31.6
329 providers0 APIs
domain · schema
Search 31.6
207 providers855 APIs
action · domain
Supply Chain 31.4
637 providers98 APIs
domain
Interoperability 31.4
182 providers82 APIs
domain
Reports 31.2
4 providers468 APIs
resource
Research 31.1
430 providers245 APIs
industry
Energy 31.1
778 providers86 APIs
industry
Identity 31.0
317 providers494 APIs
domain
SMS 31.0
171 providers101 APIs
domain
Banking 31.0
581 providers144 APIs
industry
Trading 31.0
308 providers154 APIs
action · domain
Contacts 31.0
54 providers328 APIs
domain · resource
Transaction 31.0
35 providers593 APIs
resource
GraphQL 30.9
376 providers735 APIs
schema
PayID 30.9
5 providers3 APIs
domain
Biotechnology 30.8
1155 providers4 APIs
industry
PayTo 30.8
5 providers5 APIs
domain
Task 30.7
23 providers412 APIs
resource
APIKeys 30.7
4 providers258 APIs
resource

Resource 1497 tags — showing top 40

Nouns — what is being managed (Users

Payments 153342.8 Webhook 65040.8 Platform-as-a-Service 4338.2 Self-Hosted 7536.9 Agent-Native 45235.9 User 735.0 Account 1534.5 Open Data 57233.7 Catalog 5033.3 Market Data 29033.0 Data Catalog 21433.0 Action API 033.0 Order 8932.9 Companies 832.7 Event 20032.4 Connections 131.7 Campaigns 4331.7 Reports 431.2 Transaction 3531.0 Contacts 5431.0 Task 2330.7 APIKeys 430.7 File 330.6 Product 4630.5 Metadata 7630.4 LLM 34430.4 Metrics 4830.2 Workflows 16930.1 Invoices 2530.0 Documents 6629.9 Bank Accounts 229.9 Project 929.9 Attachments 129.9 Notification 4129.8 Models 429.8 Custom Fields 129.7 Public APIs 116829.7 Cluster 129.4 List 429.4 Segments 729.3

Action 620 tags — showing top 40

Orders

Low-Code 11939.3 No-Code 21637.8 Authentication 39037.3 Enterprise 75137.0 Automation 75132.3 Monitoring 24532.1 Search 20731.6 Trading 30831.0 Integration 32630.6 LLM 34430.4 Workflows 16930.1 Bank Accounts 229.9 Notification 4129.8 Video 39229.5 Agentic Commerce 30429.4 Checkout 10329.0 Streaming 29229.0 Video Generation 8128.7 Shipping 21028.4 Monitors 228.3 Payouts 8828.3 Authorization 6428.1 Image 5527.9 Inference 16027.9 Invoicing 17527.9 Discovery 4127.8 Refunds 1727.7 Disputes 927.3 Tracking 5826.9 Configuration 726.8 Data Integration 14426.8 Cart 426.8 Commerce 21126.7 Platform 40826.5 Scheduling 24226.3 Exchange 8026.2 Trends 326.0 Audio 18825.5 Speech-to-Text 4625.4 Markets 725.3

Persona 61 tags — showing top 40

Webhooks)

Developer Tools 101035.1 Customers 1529.2 Sales 17929.0 Data Enrichment 10826.2 Developer Portal 3924.7 Lead Generation 10923.5 Sales Intelligence 8123.1 Go-To-Market 5922.9 Support 1322.8 Sales Automation 4822.8 Partners 422.6 Sales Enablement 7622.5 Revenue Operations 7122.3 API Documentation 2321.9 Agentic Payments 2621.5 Outbound 1121.4 Prospecting 2321.1 Salesforce 7320.9 Sales Engagement 3520.7 Platform Engineering 3320.3 Developer Experience 3320.1 WHOIS 1519.5 Developers 2819.3 Revenue 1919.3 API Reference 619.2 Grants 2019.0 Revenue Intelligence 2218.9 Operator 518.8 Service Catalog 818.4 Addons 017.6 Venues 1517.5 Package Registry 1417.4 Internal Developer Portal 617.3 API Marketplace 1417.2 Interactive Demos 516.7 Meters 216.2 Azure API Management 515.8 Nexus 315.3 Internal Developer Platform 1115.2 Layouts 014.9

Domain 2900 tags — showing top 40

Verbs — what you do with the API (Search

Company 1923572.9 Artificial Intelligence 446057.2 Payments 153342.8 E-Commerce 179142.6 Identity Federation 28939.8 Low-Code 11939.3 Blockchain 73137.9 Agents 49337.4 Software-as-a-Service 132937.2 Enterprise 75137.0 Consumer 135136.5 Small Business 24336.2 AI Agents 102536.2 SAML 4736.2 Web3 59435.9 Analytics 107935.8 Cryptocurrency 73635.1 Machine Learning 110834.4 A2A 42434.2 Security 91133.8 SSO 7233.1 Marketing 58233.1 Market Data 29033.0 Companies 832.7 Compliance 79732.7 Marketplace 109632.7 Observability 34232.4 New Payments Platform 532.2 CRM 37532.0 Messaging 35631.9 Logistics 71231.9 Connections 131.7 Campaigns 4331.7 A2A Verified 32931.6 Search 20731.6 Supply Chain 63731.4 Interoperability 18231.4 B2B 28631.1 Trading 30831.0 SMS 17131.0

Schema 934 tags — showing top 40

Authentication

MCP 142844.6 Webhook 65040.8 Identity Federation 28939.8 Low-Code 11939.3 OAI-PMH 16038.0 Blockchain 73137.9 No-Code 21637.8 Agents 49337.4 Self-Hosted 7536.9 AI Agents 102536.2 SAML 4736.2 Web3 59435.9 Agent-Native 45235.9 Developer Tools 101035.1 CKAN 18034.6 A2A 42434.2 JSON 2433.9 Real-Time 41233.9 Open Data 57233.7 Research Repository 15333.4 DCAT 18332.9 FHIR 16832.8 Shibboleth 3432.6 REST 13832.3 A2A Verified 32931.6 GraphQL 37630.9 Database 21630.5 Kubernetes 27430.4 WebSocket 10529.7 SDK 36629.6 Agentic Commerce 30429.4 OpenID Connect 5229.3 Streaming 29229.0 Cloud 43328.7 Course Catalog 8728.3 Registry 3228.1 IoT 55428.1 Wallets 13228.0 OpenAPI 15127.8 Infrastructure 43827.7

Industry 2163 tags — showing top 40

Monitoring)

Company 1923572.9 Fintech 211143.6 Open Source 116141.9 Identity Federation 28939.8 Healthcare 222838.3 Higher Education 32837.7 University 25937.1 Self-Hosted 7536.9 Retail 108936.4 Financial Services 119935.5 Research Data 16735.3 Education 78034.7 Library 18033.7 Research Repository 15333.4 Open Access 13933.0 Shibboleth 3432.6 Government Data 20831.9 Life Sciences 109031.8 Research 43031.1 Energy 77831.1 Banking 58131.0 Biotechnology 115530.8 Media 57630.4 Stories 129.9 Manufacturing 95629.8 Open Banking 27329.8 PropTech 31129.6 Health 63329.5 Agentic Commerce 30429.4 OpenID Connect 5229.3 Insurance 68228.9 Booking 24428.8 Finance 54428.7 Fortune 500 50328.3 Course Catalog 8728.3 Insurtech 28828.2 Registry 3228.1 Repository 2327.9 Real Estate 64527.8 Electricity 15227.7
No tags match those filters.

How the tag rubric works →