A2A
Agent2Agent
agent card
signed agent card
AP2
capability discovery

A2A Agent Card Validator & Extension Checker

Validates an Agent2Agent (A2A) agent-card.json against the v1.0 shape, checks the signed-card signatures block, and confirms AP2 / x402 extension declarations. Field names reflect A2A v1.0 — verify against the A2A schema. Does not perform cryptographic signature verification.

Tool URL: https://ainumbers.co/tools/283-a2a-agent-card-validator.html AP2/Policy Mandate export: yes

post/v1/tools/validate_a2a_agent_card

Request

  • Base URL: https://ainumbers.co
  • URL: https://ainumbers.co/v1/tools/validate_a2a_agent_card
  • Auth: none declared

Request body

agent_cardobject required

The A2A agent-card.json document

Response

Successful tool execution result

scorenumber

Changes

No recorded changes to this operation across all 1 revision of this API.