A2A Agent Card Cross-SDK Signature Conformance

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com.textforagents/a2a-agent-card-cross-sdk-signature-conformancev1.0.0 Domain verified

Per-SDK verdict matrix for signed A2A Agent Cards: which signatures verify in each SDK.

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https://textforagents.com/products/a2a-agent-card-cross-sdk-signature-conformance/mcp

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check_card

Run one cross-SDK signature conformance verdict check (trial or $0.05 x402 accounting applies).

jwksobject, required

cardobject

card_urlstring

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Tools (3)

check_card

Run one cross-SDK signature conformance verdict check (trial or $0.05 x402 accounting applies).

Argument	Type	Description
card	object
jwks*	object
card_url	string

Input schema (JSON)

{
  "type": "object",
  "required": [
    "jwks"
  ],
  "properties": {
    "card": {
      "type": "object"
    },
    "jwks": {
      "type": "object"
    },
    "card_url": {
      "type": "string"
    }
  }
}