com.textforagents/a2a-agent-card-cross-sdk-signature-conformance

up checked 2026-11-11T08:40:25.014Z

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Publisher-provided title

A2A Agent Card Cross-SDK Signature Conformance

Publisher-provided description

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

Summary by lookupd

Checks signed A2A Agent Cards and reports per-SDK verdicts on whether each signature verifies; paid per check via x402.

Install

Claude Code, remote (streamable-http)

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

Codex, remote (streamable-http)

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

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "a2a-agent-card-cross-sdk-signature-conformance": {
      "url": "https://textforagents.com/products/a2a-agent-card-cross-sdk-signature-conformance/mcp"
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (3 tools)

Publisher-provided text

• 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.

Details

• Version: 1.0.8
• Transports: streamable-http
• Uptime (7 days): 100%
• Median latency: 177 ms
• First indexed: 2026-11-01T08:59:08.854Z
• Last seen in registry: 2026-11-06T06:17:23.089Z
• Website: https://textforagents.com/products/a2a-agent-card-cross-sdk-signature-conformance/

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• API base: https://api.lookupd.com
• MCP URL: https://api.lookupd.com/mcp