A2A
Agent2Agent
agent card
trust chain
delegated authority
KYA-OS
spend policy
scope escalation
OpenChainGraph
compliance_mandate

A2A Agent-Card Trust-Chain Validator

The horizontal agent-to-agent trust complement. Validates an A2A v1.0 agent card (schema, signature, extension URIs) then assesses the delegated-authority trust chain into KYA-OS attestation + spend policy: chain depth <= 4, no scope escalation, validity windows <= 90 days. Trust PASS/WARN/FAIL determination + execution_hash.

Tool URL: https://ainumbers.co/chaingraph/art-32-a2a-agent-card-trust-chain-validator.html AP2/Policy Mandate export: yes

post/v1/tools/validate_a2a_trust_chain

Request

  • Base URL: https://ainumbers.co
  • URL: https://ainumbers.co/v1/tools/validate_a2a_trust_chain
  • Auth: none declared

Request body

agent_cardunknown required
spend_policyunknown required

Response

Successful tool execution result

card_schema_okboolean
fail_countinteger
no_expired_linksboolean
no_scope_escalationboolean
pass_countinteger
signature_block_presentboolean
trust_determinationstring
warn_countinteger

Changes

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