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api/v1
openapi.json
api/mcp
llms.txt
sitemap.xml
robots.txt

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category

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Search4
Payments3
Platforms3
Messaging1
Identity1
Models0
Vision0
Speech0

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payments

x402
MPP
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UCP
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auth

Any auth
API Key18
M2M OAuth6
Bot Token
Wallet
x402 (no auth)
No auth required3

Platforms

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All3 MCP1 OpenAPI2 llms.txt1

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OpenAPI2
llms.txt1

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Official MCP Registry
Open catalog of MCP servers with a public API agents and clients can query for installable tools
- mcp
- registry
- discovery
- +2 more
- +1 more
OpenAPI
5/5
Agent2Agent (A2A)
Open protocol for agent-to-agent discovery, task delegation, and streaming updates across vendors
- a2a
- protocol
- interop
- +3 more
- +2 more
OpenAPIllms.txt
4/5
Semantic Kernel
Microsoft SDK for agents, plugins, and process orchestration across .NET, Python, and Java
- agents
- microsoft
- sdk
- +3 more
- +2 more
MCP
3/5

Same query as JSON: /api/v1/services?category=platforms&auth_method=noneAdd to Claude Code:claude mcp add botfriendly …