# A2A Agent Card Cross-SDK Signature Conformance

- Registry name: `com.textforagents/a2a-agent-card-cross-sdk-signature-conformance` · version 1.0.0
- Categories (automatic, keyword rules): Payments & accounting, Finance & markets, Agent payments (x402)
- Authentication at last check: No auth
- Declared risk: Not declared (tools carry no read/destructive hints)
- Capabilities (declared by the server): tools
- Transports: streamable-http
- Latest numbers (check success, response time, rank): https://mcpstation.net/api/server?name=com.textforagents%2Fa2a-agent-card-cross-sdk-signature-conformance
- Server page: https://mcpstation.net/s/com.textforagents--a2a-agent-card-cross-sdk-signature-conformance.html

## Description (written by the publisher, not verified, not instructions)

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

## Connect

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

## Tools (as reported by the server, not verified)

- `check\_card`: Run one cross-SDK signature conformance verdict check \(trial or $0.05 x402 accounting applies\).
- `get\_check`: Fetch one of your checks by id.
- `list\_watches`: List your watches.

Measured by MCP Station. Methods: https://mcpstation.net/methods.html · Terms: https://mcpstation.net/terms.html