# Peptides x402

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

AI agents for authorized trading partners. Not marketing. Not advertising.

The payments door of the A2A Peptides family: settlement after the gate, and the per-resolve meter on the registry's truth tools. An order intent settles in USDC on Base; the receipt is signed and carries the reason code and the rule-set version the gate returned.

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.

Operator: GreenCore Solutions Corp. · Surface: https://peptides-x402.ai · version 0.3.0 · as of 2026-09-17 · family hub https://a2a-peptides.ai

## Resources

- https://peptides-x402.ai/api — The paid call (402 offer; settlement when the payTo of record is set)
- https://peptides-x402.ai/x402 — How the paid call works
- https://peptides-x402.ai/.well-known/agent-card.json — signed Agent Card
- https://peptides-x402.ai/.well-known/jwks.json — keyring (kid a2ap-2026-09)
- https://mcp.a2a-peptides.ai/mcp — the family's MCP door