Countersign
Independent, signed check of AI work: math, quotes, sources, links, code. Public verifiable log.
What it does
Countersign 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). None of this is a test of the tool.
At a glance
How to connect
As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 1h ago (live check)Hosted endpoint
https://countersign.llpro.ai/mcpstreamable-http
In Claude Code: claude mcp add --transport http countersign-1 https://countersign.llpro.ai/mcp
MCP settings (Claude Desktop, Cursor and other MCP clients)
{
"mcpServers": {
"countersign-1": {
"url": "https://countersign.llpro.ai/mcp"
}
}
}Live check
Electra Index connected to the hosted endpoint 1h agoONLINE Countersign answered an MCP connection on 07 Nov 2026 and introduced itself as countersign 1.0.0 (MCP protocol 2025-03-26).
3 tools offered to AI assistants
countersign_stamp· Use when you need an independent, signed check of work you or another agent produced (a report, calculation, summary, filing draft or code) before relying on it or handing it on. Countersign re-computes arithmetic, looks up quotes and valuecountersign_verify· Confirm a Countersign stamp is real: give a stamp id (and optionally the work, to confirm the stamp is for exactly that text). Returns whether it is in the public log and whether its hash and signature are valid.countersign_log· Read the public stamp log (newest after a sequence number) and its head hash and public key.
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. Launch offer: $39.99 once, for life.
Facts & evidence
Each fact shows where it was seen and when.| Fact | Value | Evidence | Source | Last confirmed |
|---|---|---|---|---|
| Hosted endpoint | https://countersign.llpro.ai/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://countersign.llpro.ai/llms.txt | 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
- NEW07 Nov 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 Countersign still online?
Free alerts · no account▲ 0Do you run Countersign? Know when it stops answering
For publishers · optionalIts hosted endpoint can be monitored. Monitoring Pro connects every 30 minutes like an AI assistant, emails you within the hour when it stops answering, keeps a 90-day availability history and adds your answer rate to your badge.
Monitoring never changes a score or a rank.
Are you the publisher of Countersign?
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<a href="https://electraindex.com/mcp/countersign-1?utm_source=badge&utm_medium=share&utm_campaign=listing"><img src="https://electraindex.com/api/badge/countersign-1" alt="Listed on Electra Index"></a>Questions about Countersign
How do I connect Countersign?
Use the hosted endpoint https://countersign.llpro.ai/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 Countersign offer?
When Electra Index connected on 07 Nov 2026, it listed 3 tools: countersign_stamp, countersign_verify, countersign_log. The full list is in "Live check" above.
Is Countersign online?
Yes. Its hosted endpoint answered an MCP connection from Electra Index 1h ago.