Tags

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

15523 scored tags 90 canonical 371 established 618 emerging

Canonical tags 90 core

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

Artificial Intelligence 57.5
4253 providers580 APIs
domain
MCP 45.6
1426 providers1272 APIs
schema
Fintech 44.3
2078 providers38 APIs
industry
Payments 43.6
1522 providers1001 APIs
resource · domain
E-Commerce 43.4
1773 providers323 APIs
domain
Webhook 41.6
650 providers1523 APIs
resource · schema
Identity Federation 40.5
290 providers243 APIs
domain · schema · industry
Healthcare 39.0
2202 providers175 APIs
industry
Blockchain 38.6
728 providers161 APIs
domain · schema
OAI-PMH 38.6
160 providers302 APIs
schema
Higher Education 38.3
328 providers10 APIs
industry
Agents 38.0
485 providers845 APIs
domain · schema
Authentication 37.8
388 providers2045 APIs
action
University 37.7
259 providers10 APIs
industry
Retail 37.1
1085 providers81 APIs
industry
SAML 36.9
48 providers296 APIs
domain · schema
AI Agents 36.8
1016 providers323 APIs
domain · schema
Web3 36.6
593 providers61 APIs
domain · schema
Agent-Native 36.5
418 providers277 APIs
schema · resource
Analytics 36.3
1055 providers757 APIs
domain
Financial Services 36.2
1194 providers58 APIs
industry
Research Data 35.8
167 providers240 APIs
industry
Cryptocurrency 35.7
733 providers175 APIs
domain
Developer Tools 35.6
985 providers193 APIs
persona · schema
User 35.4
7 providers1706 APIs
resource
Education 35.3
777 providers121 APIs
industry
CKAN 35.1
180 providers203 APIs
schema
Account 35.0
15 providers1079 APIs
resource
Machine Learning 35.0
1100 providers149 APIs
domain
A2A 34.9
424 providers215 APIs
domain · schema
JSON 34.5
23 providers258 APIs
schema
Real-Time 34.5
405 providers354 APIs
schema
Security 34.3
886 providers507 APIs
domain
Open Data 34.3
570 providers527 APIs
schema · resource
Library 34.2
179 providers411 APIs
industry
Research Repository 33.9
153 providers154 APIs
industry · schema
SSO 33.8
72 providers306 APIs
domain
Catalog 33.8
50 providers660 APIs
resource
Marketing 33.7
572 providers101 APIs
domain
Market Data 33.6
285 providers324 APIs
resource · domain
Data Catalog 33.5
214 providers26 APIs
resource
Open Access 33.5
139 providers231 APIs
industry
Action API 33.5
0 providers168 APIs
resource
DCAT 33.4
183 providers8 APIs
schema
FHIR 33.4
168 providers169 APIs
schema
Order 33.3
89 providers760 APIs
resource
Compliance 33.3
787 providers286 APIs
domain
Marketplace 33.2
1083 providers173 APIs
domain
Shibboleth 33.1
34 providers188 APIs
industry · schema
Observability 33.0
335 providers201 APIs
domain
REST 32.9
136 providers963 APIs
schema
PayID 32.9
5 providers3 APIs
domain
Event 32.8
200 providers1154 APIs
resource
Monitoring 32.6
234 providers280 APIs
action
PayTo 32.6
5 providers4 APIs
domain
CRM 32.6
370 providers185 APIs
domain
Messaging 32.4
353 providers248 APIs
domain
Logistics 32.4
710 providers162 APIs
domain
Government Data 32.4
208 providers3 APIs
industry
New Payments Platform 32.3
5 providers5 APIs
domain
A2A Verified 32.3
329 providers0 APIs
domain · schema
Life Sciences 32.3
1089 providers9 APIs
industry
Campaigns 32.2
43 providers224 APIs
resource · domain
Search 32.1
205 providers846 APIs
action · domain
Supply Chain 32.0
636 providers98 APIs
domain
Interoperability 32.0
181 providers82 APIs
domain
Energy 31.7
775 providers87 APIs
industry
Reports 31.6
4 providers471 APIs
resource
Research 31.6
429 providers246 APIs
industry
Automation 31.6
642 providers356 APIs
action
SMS 31.6
169 providers102 APIs
domain
Transaction 31.5
35 providers596 APIs
resource
Identity 31.5
316 providers494 APIs
domain
Connections 31.5
1 providers134 APIs
resource
Trading 31.5
307 providers151 APIs
action · domain
Contacts 31.4
53 providers325 APIs
domain · resource
Banking 31.4
571 providers141 APIs
industry
GraphQL 31.4
374 providers733 APIs
schema
APIKeys 31.1
4 providers249 APIs
resource
Biotechnology 31.1
1136 providers4 APIs
industry
LLM 31.0
332 providers156 APIs
action · domain · resource
Database 31.0
213 providers195 APIs
domain · schema
Task 31.0
22 providers404 APIs
resource
Kubernetes 30.9
271 providers178 APIs
schema
Product 30.9
46 providers579 APIs
resource
Metadata 30.8
76 providers501 APIs
resource
Media 30.8
572 providers189 APIs
industry
Metrics 30.8
48 providers361 APIs
resource · domain
File 30.7
3 providers447 APIs
resource
Bank Accounts 30.7
2 providers49 APIs
resource · action

Resource 1476 tags — showing top 40

Nouns — what is being managed (Users

Payments 152243.6 Webhook 65041.6 Platform-as-a-Service 4238.4 Self-Hosted 7437.2 Agent-Native 41836.5 User 735.4 Account 1535.0 Open Data 57034.3 Catalog 5033.8 Market Data 28533.6 Data Catalog 21433.5 Action API 033.5 Order 8933.3 Companies 833.1 Event 20032.8 Campaigns 4332.2 Reports 431.6 Connections 131.5 Transaction 3531.5 Contacts 5331.4 APIKeys 431.1 LLM 33231.0 Task 2231.0 Product 4630.9 Metadata 7630.8 Metrics 4830.8 Bank Accounts 230.7 File 330.7 Workflows 15630.6 Attachments 130.5 Invoices 2530.4 Models 430.3 Custom Fields 130.3 Documents 6630.3 Notification 4130.2 Project 930.2 Segments 730.0 Public APIs 117029.9 List 429.7 Cluster 129.6

Action 618 tags — showing top 40

Orders

Low-Code 10540.4 No-Code 19638.4 Authentication 38837.8 Monitoring 23432.6 Search 20532.1 Automation 64231.6 Trading 30731.5 LLM 33231.0 Bank Accounts 230.7 Workflows 15630.6 Integration 22830.3 Notification 4130.2 Video 39130.0 Agentic Commerce 30429.9 Checkout 10329.5 Streaming 29229.5 Video Generation 8129.2 Payouts 8828.9 Monitors 228.8 Shipping 21028.8 Authorization 6428.6 Invoicing 17328.3 Inference 15728.3 Image 5428.3 Discovery 4128.2 Refunds 1727.8 Disputes 927.7 Cart 427.4 Configuration 727.1 Data Integration 12027.1 Tracking 5827.1 Commerce 21027.0 Admin 127.0 Scheduling 24026.7 Exchange 8026.6 Platform 33226.1 OpenAI-Compatible 3625.8 Audio 18725.8 Speech-to-Text 4625.8 Markets 725.7

Persona 64 tags — showing top 40

Webhooks)

Developer Tools 98535.6 Customers 1529.6 Sales 17529.4 Data Enrichment 10726.6 Developer Portal 3925.2 Lead Generation 10923.9 Sales Intelligence 8123.6 Go-To-Market 5923.4 Sales Automation 4823.3 Support 1223.3 Sales Enablement 7622.9 Partners 422.9 Revenue Operations 6922.6 API Documentation 2222.4 Outbound 1121.8 Agentic Payments 2621.8 Entitlements 1321.6 Prospecting 2321.5 Sales Engagement 3521.2 Salesforce 6821.2 Referrals 1720.9 Platform Engineering 3320.6 Developer Experience 3320.4 WHOIS 1519.9 Revenue 1819.6 Grants 2019.4 Developers 2619.4 API Reference 619.3 Partner API 6719.3 Revenue Intelligence 2119.2 Operator 519.0 Service Catalog 818.7 Venues 1517.8 Package Registry 1417.8 Addons 017.8 API Marketplace 1317.7 Internal Developer Portal 617.7 Interactive Demos 517.2 Azure API Management 516.2 Revenue Enablement 515.8

Domain 2884 tags — showing top 40

Verbs — what you do with the API (Search

Company 1876972.9 Artificial Intelligence 425357.5 Payments 152243.6 E-Commerce 177343.4 Identity Federation 29040.5 Low-Code 10540.4 Blockchain 72838.6 Agents 48538.0 Software-as-a-Service 125837.2 SAML 4836.9 Consumer 135036.8 AI Agents 101636.8 Web3 59336.6 Analytics 105536.3 Enterprise 68436.3 Small Business 24136.3 Cryptocurrency 73335.7 Machine Learning 110035.0 A2A 42434.9 Security 88634.3 SSO 7233.8 Marketing 57233.7 Market Data 28533.6 Compliance 78733.3 Marketplace 108333.2 Companies 833.1 Observability 33533.0 PayID 532.9 PayTo 532.6 CRM 37032.6 Messaging 35332.4 Logistics 71032.4 A2A Verified 32932.3 New Payments Platform 532.3 Campaigns 4332.2 Search 20532.1 Interoperability 18132.0 Supply Chain 63632.0 SMS 16931.6 Trading 30731.5

Schema 925 tags — showing top 40

Authentication

MCP 142645.6 Webhook 65041.6 Identity Federation 29040.5 Low-Code 10540.4 Blockchain 72838.6 OAI-PMH 16038.6 No-Code 19638.4 Agents 48538.0 Self-Hosted 7437.2 SAML 4836.9 AI Agents 101636.8 Web3 59336.6 Agent-Native 41836.5 Developer Tools 98535.6 CKAN 18035.1 A2A 42434.9 Real-Time 40534.5 JSON 2334.5 Open Data 57034.3 Research Repository 15333.9 DCAT 18333.4 FHIR 16833.4 Shibboleth 3433.1 REST 13632.9 A2A Verified 32932.3 GraphQL 37431.4 Database 21331.0 Kubernetes 27130.9 WebSocket 10530.3 SDK 35730.0 OpenID Connect 5329.9 Agentic Commerce 30429.9 Streaming 29229.5 Cloud 40529.0 Course Catalog 8728.7 Registry 3228.5 IoT 54728.5 Wallets 13128.4 OpenAPI 14828.4 Infrastructure 43428.1

Industry 2174 tags — showing top 40

Monitoring)

Company 1876972.9 Fintech 207844.3 Open Source 114542.2 Identity Federation 29040.5 Healthcare 220239.0 Higher Education 32838.3 University 25937.7 Self-Hosted 7437.2 Retail 108537.1 Financial Services 119436.2 Research Data 16735.8 Education 77735.3 Library 17934.2 Research Repository 15333.9 Open Access 13933.5 Shibboleth 3433.1 Government Data 20832.4 Life Sciences 108932.3 Energy 77531.7 Research 42931.6 Banking 57131.4 Biotechnology 113631.1 Media 57230.8 Open Banking 26930.4 Manufacturing 95030.3 PropTech 31330.1 OpenID Connect 5329.9 Agentic Commerce 30429.9 Health 62929.8 Insurance 67629.3 Booking 24429.3 Finance 52629.0 Course Catalog 8728.7 Insurtech 28828.6 Registry 3228.5 Fortune 500 50528.5 Repository 2328.3 Real Estate 64128.2 Electricity 15228.1 Travel 38228.0
No tags match those filters.

How the tag rubric works →