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A2A Agent Card Cross-SDK Signature Conformance

Official registry Developer tools

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

Website

Install

Add this to your client's MCP configuration (Claude Desktop: claude_desktop_config.json; Cursor: .cursor/mcp.json; VS Code and others use the same "mcpServers" shape).

Remote (streamable-http)
Claude Code 
claude mcp add --transport http a2a-agent-card-cross-sdk-signature-confo 'https://textforagents.com/products/a2a-agent-card-cross-sdk-signature-conformance/mcp'
JSON configuration (Claude Desktop, Cursor, VS Code) 
{
    "mcpServers": {
        "a2a-agent-card-cross-sdk-signature-confo": {
            "type": "http",
            "url": "https://textforagents.com/products/a2a-agent-card-cross-sdk-signature-conformance/mcp"
        }
    }
}

Frequently asked questions

What is A2A Agent Card Cross-SDK Signature Conformance?

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

How do I install A2A Agent Card Cross-SDK Signature Conformance?

It runs as a remote server. In Claude Code: claude mcp add --transport http a2a-agent-card-cross-sdk-signature-confo 'https://textforagents.com/products/a2a-agent-card-cross-sdk-signature-conformance/mcp'. For other clients, paste the JSON configuration from this page into their MCP settings.

Does A2A Agent Card Cross-SDK Signature Conformance need an API key?

Its registry entry lists no required key or secret. Some features may still need an account with the service it connects to.

Who maintains A2A Agent Card Cross-SDK Signature Conformance?

It is published by com.textforagents. AI.tn lists it but does not maintain or endorse it.

From the official MCP Registry. Listing is not an endorsement: review a server's code and permissions before giving it access to your data.