Tags

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

14688 scored tags 132 canonical 501 established 869 emerging

Canonical tags 132 core

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

Artificial Intelligence 58.2
3850 providers576 APIs
domain
MCP 47.5
1415 providers1209 APIs
schema
Fintech 46.0
1992 providers39 APIs
industry
Payments 45.6
1492 providers992 APIs
resource · domain
E-Commerce 45.1
1706 providers324 APIs
domain
Webhook 43.7
655 providers1437 APIs
resource · schema
Identity Federation 43.5
295 providers243 APIs
domain · schema · industry
OAI-PMH 41.3
161 providers302 APIs
schema
Higher Education 40.8
328 providers10 APIs
industry
University 40.5
261 providers10 APIs
industry
Healthcare 40.2
2088 providers177 APIs
industry
Blockchain 39.8
729 providers172 APIs
domain · schema
SAML 39.7
48 providers291 APIs
domain · schema
Authentication 39.3
382 providers1862 APIs
action
Agents 39.3
495 providers815 APIs
domain · schema
AI Agents 38.6
1018 providers355 APIs
domain · schema
Research Data 38.5
168 providers239 APIs
industry
Retail 38.5
1052 providers82 APIs
industry
Analytics 37.9
1009 providers738 APIs
domain
Agent-Native 37.8
368 providers303 APIs
schema · resource
Financial Services 37.6
1156 providers58 APIs
industry
Developer Tools 37.6
988 providers196 APIs
persona · schema
User 37.5
7 providers1545 APIs
resource
Web3 37.2
540 providers61 APIs
domain · schema
Education 37.1
745 providers120 APIs
industry
Real-Time 37.0
422 providers349 APIs
schema
CKAN 37.0
181 providers204 APIs
schema
Machine Learning 36.9
1106 providers152 APIs
domain
Library 36.6
177 providers356 APIs
industry
Open Data 36.4
560 providers532 APIs
schema · resource
Research Repository 36.4
154 providers154 APIs
industry · schema
A2A 36.3
441 providers194 APIs
schema · domain
JSON 36.2
21 providers258 APIs
schema
Open Access 36.0
137 providers231 APIs
industry
SSO 35.9
77 providers300 APIs
domain
Account 35.9
15 providers959 APIs
resource
Shibboleth 35.7
34 providers188 APIs
schema · industry
Catalog 35.5
53 providers646 APIs
resource
Security 35.5
843 providers504 APIs
domain
Data Catalog 35.4
215 providers25 APIs
resource
DCAT 35.2
183 providers8 APIs
schema
Order 35.2
91 providers697 APIs
resource
Market Data 35.2
276 providers312 APIs
resource · domain
Marketing 35.2
546 providers98 APIs
domain
Observability 35.0
336 providers193 APIs
domain
FHIR 34.9
169 providers166 APIs
schema
Compliance 34.7
766 providers285 APIs
domain
REST 34.7
137 providers961 APIs
schema
Action API 34.6
0 providers168 APIs
resource
Data Sources 34.4
1 providers78 APIs
domain
Monitoring 34.4
218 providers278 APIs
action
Government Data 34.3
207 providers4 APIs
industry
Campaigns 34.2
44 providers213 APIs
resource · domain
Event 34.2
195 providers1082 APIs
resource
CRM 34.1
367 providers189 APIs
domain
Marketplace 34.0
1012 providers173 APIs
domain
Life Sciences 33.7
1086 providers9 APIs
industry
Transaction 33.6
38 providers552 APIs
resource
Connections 33.6
1 providers125 APIs
resource
Contacts 33.6
54 providers313 APIs
domain · resource
Messaging 33.6
336 providers244 APIs
domain
Research 33.5
387 providers241 APIs
industry
Logistics 33.4
676 providers145 APIs
domain
Search 33.4
198 providers786 APIs
action · domain
Interoperability 33.3
175 providers83 APIs
domain
Reports 33.2
4 providers414 APIs
resource
SMS 33.2
161 providers96 APIs
domain
Supply Chain 33.2
621 providers97 APIs
domain
Metadata 33.1
70 providers490 APIs
resource
GraphQL 33.1
378 providers729 APIs
schema
Project 33.0
11 providers587 APIs
resource
Identity 32.9
307 providers488 APIs
domain
Task 32.9
24 providers380 APIs
resource
Product 32.8
45 providers551 APIs
resource
LLM 32.7
333 providers156 APIs
domain
Database 32.7
209 providers193 APIs
domain · schema
APIKeys 32.6
4 providers226 APIs
resource
Banking 32.6
550 providers139 APIs
industry
Workflows 32.5
156 providers340 APIs
resource · action
Kubernetes 32.4
270 providers172 APIs
schema
Energy 32.4
711 providers83 APIs
industry
Email Marketing 32.4
81 providers26 APIs
domain
Trading 32.4
276 providers145 APIs
action · domain
PayID 32.3
5 providers3 APIs
domain
PayTo 32.3
5 providers5 APIs
domain
Metrics 32.3
48 providers339 APIs
resource · domain
Models 32.3
4 providers214 APIs
resource
DevOps 32.2
331 providers64 APIs
domain
Media 32.2
558 providers184 APIs
industry
Email 32.2
188 providers177 APIs
domain
Documents 32.2
69 providers479 APIs
resource
WebSocket 32.1
98 providers267 APIs
schema
Audit Logs 32.1
4 providers130 APIs
resource
Integration 32.0
166 providers572 APIs
action · domain
File 32.0
3 providers408 APIs
resource
Automation 32.0
534 providers352 APIs
action
Cluster 31.9
1 providers171 APIs
resource
Custom Fields 31.9
1 providers106 APIs
resource
Notification 31.9
41 providers439 APIs
resource · action · domain
Subscribers 31.8
11 providers48 APIs
resource · domain
Attachments 31.8
1 providers112 APIs
resource
Segments 31.8
7 providers77 APIs
resource · domain
Sessions 31.8
13 providers333 APIs
resource
Invoices 31.7
25 providers301 APIs
resource
Advertising 31.7
404 providers118 APIs
domain
Ingest 31.6
1 providers49 APIs
resource · domain · action
Customers 31.6
16 providers434 APIs
resource · persona
Biotechnology 31.6
1049 providers4 APIs
industry
Cryptocurrency 31.5
415 providers127 APIs
domain
Marketing Automation 31.5
139 providers27 APIs
domain
Bulk 31.5
1 providers49 APIs
domain · resource
Video 31.5
391 providers238 APIs
action · domain
DeFi 31.5
304 providers61 APIs
domain
PropTech 31.4
313 providers3 APIs
industry
List 31.3
4 providers122 APIs
domain
SDK 31.3
356 providers646 APIs
schema
Agentic Commerce 31.3
308 providers215 APIs
action · domain · schema · industry
Open Banking 31.3
267 providers113 APIs
domain · industry
Conversations 31.2
15 providers156 APIs
resource · domain
Course Catalog 31.2
89 providers65 APIs
industry · schema
Manufacturing 31.1
907 providers59 APIs
industry
Reporting 31.1
133 providers342 APIs
domain
Group 31.1
4 providers412 APIs
resource
Alerts 31.0
28 providers246 APIs
action · resource · domain
Streaming 31.0
291 providers337 APIs
action · schema
Tags 30.9
2 providers348 APIs
resource
Human Resources 30.9
455 providers77 APIs
domain
Monitors 30.8
2 providers68 APIs
action · resource · domain
Billing 30.8
154 providers284 APIs
resource · domain
SCIM 30.8
60 providers104 APIs
resource · domain
Logs 30.7
17 providers132 APIs
resource · domain
Checkout 30.7
104 providers232 APIs
action · domain

Resource 1436 tags — showing top 40

Nouns — what is being managed (Users

Payments 149245.6 Webhook 65543.7 Platform-as-a-Service 4037.9 Agent-Native 36837.8 Self-Hosted 7337.6 User 737.5 Open Data 56036.4 Account 1535.9 Catalog 5335.5 Data Catalog 21535.4 Order 9135.2 Market Data 27635.2 Action API 034.6 Campaigns 4434.2 Event 19534.2 Companies 833.9 Transaction 3833.6 Connections 133.6 Contacts 5433.6 Reports 433.2 Metadata 7033.1 Project 1133.0 Task 2432.9 Product 4532.8 APIKeys 432.6 Workflows 15632.5 Metrics 4832.3 Models 432.3 Documents 6932.2 Audit Logs 432.1 File 332.0 Custom Fields 131.9 Cluster 131.9 Notification 4131.9 Sessions 1331.8 Subscribers 1131.8 Attachments 131.8 Segments 731.8 Invoices 2531.7 Ingest 131.6

Action 596 tags — showing top 40

Orders

Low-Code 9639.9 Authentication 38239.3 No-Code 19238.8 Enterprise 60235.8 Monitoring 21834.4 Search 19833.4 Workflows 15632.5 Trading 27632.4 Automation 53432.0 Integration 16632.0 Notification 4131.9 Ingest 131.6 Video 39131.5 Agentic Commerce 30831.3 Alerts 2831.0 Streaming 29131.0 Monitors 230.8 Checkout 10430.7 Bank Accounts 230.6 Payouts 8930.5 Authorization 6530.5 Shipping 19629.9 Video Generation 7429.8 Invoicing 17329.7 Refunds 1629.5 Inference 15729.5 Image 5529.4 Disputes 929.2 Data Integration 11229.2 Discovery 4129.1 Configuration 728.6 Commerce 20728.2 Scheduling 23928.2 T1 1728.1 Speech-to-Text 5028.1 Payment Methods 128.1 Tracking 5428.0 Lifecycle 327.9 REST API 12027.4 Data Pipeline 6927.4

Persona 60 tags — showing top 40

Webhooks)

Developer Tools 98837.6 Customers 1631.6 Sales 17230.6 Developer Portal 3728.1 Enrichment 1725.7 Lead Generation 11025.3 Sales Intelligence 8325.2 Support 1025.1 Go-To-Market 5924.9 Sales Automation 5024.6 Partners 424.5 Sales Enablement 7424.1 Revenue Operations 6823.9 Widgets 1523.7 API Documentation 2123.5 Outbound 1023.0 Sales Engagement 3723.0 Contact Data 1822.8 Prospecting 2522.6 Salesforce 6522.2 WHOIS 1421.5 Developer Experience 3321.3 Revenue Intelligence 2220.8 API Reference 520.5 Partner API 6620.2 Developers 2319.9 Operator 519.6 Package Registry 1419.6 API Marketplace 1119.4 Interactive Demos 518.9 Addons 018.7 Software Catalog 618.1 Revenue Enablement 517.2 Azure API Management 517.2 Nexus 316.7 AI Coding Agents 1416.5 Dependency Management 816.5 NuGet 416.4 Code Search 516.1 Code Security 715.7

Domain 2847 tags — showing top 40

Verbs — what you do with the API (Search

Company 1698972.3 Artificial Intelligence 385058.2 Payments 149245.6 E-Commerce 170645.1 Identity Federation 29543.5 Low-Code 9639.9 Blockchain 72939.8 SAML 4839.7 Agents 49539.3 AI Agents 101838.6 Analytics 100937.9 Web3 54037.2 Consumer 134537.2 Machine Learning 110636.9 A2A 44136.3 Small Business 23036.2 Software-as-a-Service 109436.0 SSO 7735.9 Enterprise 60235.8 Security 84335.5 Marketing 54635.2 Market Data 27635.2 Observability 33635.0 Compliance 76634.7 Data Sources 134.4 Campaigns 4434.2 CRM 36734.1 Marketplace 101234.0 Companies 833.9 Contacts 5433.6 Messaging 33633.6 Logistics 67633.4 Search 19833.4 Interoperability 17533.3 Supply Chain 62133.2 SMS 16133.2 Identity 30732.9 Database 20932.7 LLM 33332.7 Trading 27632.4

Schema 934 tags — showing top 40

Authentication

MCP 141547.5 Webhook 65543.7 Identity Federation 29543.5 OAI-PMH 16141.3 Low-Code 9639.9 Blockchain 72939.8 SAML 4839.7 Agents 49539.3 No-Code 19238.8 AI Agents 101838.6 Agent-Native 36837.8 Self-Hosted 7337.6 Developer Tools 98837.6 Web3 54037.2 CKAN 18137.0 Real-Time 42237.0 Open Data 56036.4 Research Repository 15436.4 A2A 44136.3 JSON 2136.2 Shibboleth 3435.7 DCAT 18335.2 FHIR 16934.9 REST 13734.7 GraphQL 37833.1 Database 20932.7 Kubernetes 27032.4 WebSocket 9832.1 Agentic Commerce 30831.3 SDK 35631.3 Course Catalog 8931.2 Streaming 29131.0 Registry 2930.6 Tenants 530.0 Cloud 32029.9 CI/CD 12829.9 OpenAPI 14729.9 API Gateway 8729.8 DOI 829.8 IoT 52129.7

Industry 2114 tags — showing top 40

Monitoring)

Company 1698972.3 Fintech 199246.0 Identity Federation 29543.5 Open Source 110643.0 Higher Education 32840.8 University 26140.5 Healthcare 208840.2 Retail 105238.5 Research Data 16838.5 Self-Hosted 7337.6 Financial Services 115637.6 Education 74537.1 Library 17736.6 Research Repository 15436.4 Open Access 13736.0 Shibboleth 3435.7 Government Data 20734.3 Life Sciences 108633.7 Research 38733.5 Banking 55032.6 Energy 71132.4 Media 55832.2 Biotechnology 104931.6 PropTech 31331.4 Agentic Commerce 30831.3 Open Banking 26731.3 Course Catalog 8931.2 Manufacturing 90731.1 Registry 2930.6 Health 60030.5 Repository 2330.2 Insurance 65330.2 Booking 23430.1 Tenants 530.0 Insurtech 28729.9 Finance 40829.9 DOI 829.8 PSD2 8229.6 Electricity 14429.4 eduGAIN 429.4
No tags match those filters.

How the tag rubric works →