agents.txt Reference Agent

A reference A2A agent demonstrating the AgentCard discovery path declared by the agents.txt standard. Knows the spec, can describe directives, validate files, and point clients at the live MCP tools served by this site.

Skills

• Explain an agents.txt directive
  Returns the spec section text for a named directive (Protocols, Authorization, MCP, Skills, A2A, etc.) plus an example and the relevant section number.
  specagents.txtdocumentation
• Validate agents.txt and agents.json
  Runs the spec validators against a site's discovery files and returns a compliance report. Delegates to the audit_site MCP tool exposed at mcp.agents-txt.com.
  validationauditcompliance
• Explain an announced payment protocol
  Returns a plain-language explanation of any payment protocol the site declares (x402, mpp, ap2): what it is, what role it plays, where the runtime details live, and how it composes with the others.
  paymentsx402mppap2documentation
• Summarize a site's agent capabilities
  Reads agents.txt and agents.json from a target origin, summarizes the declared payment protocols, authorization scheme, MCP endpoints, skill packages, and A2A AgentCards in plain language.
  discoverycapabilitiessummary

How to call

https://agents-txt.com/a2a