# A2A Peptides — the door.

> Agent-to-Agent (A2A) + Model Context Protocol (MCP) hub for peptides.

A2A-Peptides.ai is the first agentic commerce hub for peptides in 35 countries. The Agent-to-Agent (A2A) surface for peptides, served over the Model Context Protocol (MCP) — the record, a registry for security, and x402 to pay on it.

This hostname is the MCP door. Agents POST here; people read this page.

- Endpoint: https://mcp.a2a-peptides.ai/mcp (streamable-HTTP, POST)
- Agent Card: https://a2a-peptides.ai/.well-known/agent-card.json
- Official MCP Registry: io.github.A2A-Peptides/a2a-peptides
- Hub, docs, setup, llms.txt of record: https://a2a-peptides.ai/ · https://a2a-peptides.ai/docs · https://a2a-peptides.ai/setup · https://a2a-peptides.ai/llms.txt

Door version 1.8.7 · 20 tools · jurisdictions US · CA · MX · EU · UK · KR · JP · SG · CH · 5,301 products · 24,694 providers

AI agents for authorized trading partners. Not marketing. Not advertising.
Product-level answers for licensed parties and their agents; status and a licensed referral for everyone else.

Notice: Artificial intelligence makes mistakes. A2A Peptides is an information source, not a recommendation. Rules differ by jurisdiction — refer to the regulator in your jurisdiction for the information that applies to you.