A2A Agent Card Cross-SDK Signature Conformance
Per-SDK verdict matrix for signed A2A Agent Cards: which signatures verify in each SDK.
What it does
A2A Agent Card Cross-SDK Signature Conformance is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.
No capability identified yet from its description.
Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence) and are not a test of the tool.
At a glance
How to connect
As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 2h ago (live check)Hosted endpoint
https://textforagents.com/products/a2a-agent-card-cross-sdk-signature-conformance/mcpstreamable-http
In Claude Code: claude mcp add --transport http a2a-agent-card-cross-sdk-signature-conformance https://textforagents.com/products/a2a-agent-card-cross-sdk-signature-conformance/mcp
MCP settings (Claude Desktop, Cursor and other MCP clients)
{
"mcpServers": {
"a2a-agent-card-cross-sdk-signature-conformance": {
"url": "https://textforagents.com/products/a2a-agent-card-cross-sdk-signature-conformance/mcp"
}
}
}Live check
Electra Index connected to the hosted endpoint 2h agoONLINE A2A Agent Card Cross-SDK Signature Conformance answered an MCP connection on 22 Oct 2026 and introduced itself as a2a-agent-card-cross-sdk-signature-conformance 1.0.0 (MCP protocol 2025-03-26).
3 tools offered to AI assistants
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.
What "online" means: the server answered an MCP connection at the time of the check. It is not a guarantee of security, quality or continuous uptime. How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method
Is this your server? Monitoring Pro: a check every 30 minutes and an email within the hour when it stops answering. $9.99/month.
Facts & evidence
Each fact shows where it was seen and when.| Fact | Value | Evidence | Source | Last confirmed |
|---|---|---|---|---|
| Hosted endpoint | https://textforagents.com/products/a2a-agent-card-cross-sdk-signature-conformance/mcp | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Local install (package) | no | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Remote access (hosted) | yes | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Website | https://textforagents.com/products/a2a-agent-card-cross-sdk-signature-conformance/ | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Registry status | active | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| Version | 1.0.0 | DECLARED | SRC-001 Official MCP Registry | 1h ago |
| MCP server | yes | DECLARED | SRC-001 Official MCP Registry | 1h ago |
Change history
- NEW22 Oct 2026first seen in the index
Is this page accurate?
Flag it and our robot re-checks the official source. Reports never change a score.Is A2A Agent Card Cross-SDK Signature Conformance still online?
Free alerts · no accountQuestions about A2A Agent Card Cross-SDK Signature Conformance
How do I connect A2A Agent Card Cross-SDK Signature Conformance?
Use the hosted endpoint https://textforagents.com/products/a2a-agent-card-cross-sdk-signature-conformance/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.
What tools does A2A Agent Card Cross-SDK Signature Conformance offer?
When Electra Index connected on 22 Oct 2026, it listed 3 tools: check_card, get_check, list_watches. The full list is in "Live check" above.
Is A2A Agent Card Cross-SDK Signature Conformance online?
Yes. Its hosted endpoint answered an MCP connection from Electra Index 2h ago.