Countersign

by FastDrop

MCP MCP VERIFIED Verified 1 hour ago Registry import free

Independent, signed check of AI work: math, quotes, sources, links, code. Public verifiable log.

Independent, signed check of AI work: math, quotes, sources, links, code. Public verifiable log. Official MCP Registry: ai.llpro.countersign/countersign@1.0.0. Remote endpoint: https://countersign.llpro.ai/mcp

Problem it solves

Discoverable MCP server listed in the official MCP Registry.

How it's different

Remote MCP endpoint ingested from the official registry and probed by FastDrop.

Ingested from the official MCP Registry

FastDrop pulled this entry from the official MCP Registry as ai.llpro.countersign/countersign and probed the endpoint. The maker did not submit it, so the outbound link is not endorsed and the description is not theirs.

If this is your server, claim the listing to edit it and take ownership. The registry index lists everything else still awaiting a probe.

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Tools this endpoint exposes

Read directly from the endpoint on 7 Nov 2026. Not supplied by the maker.

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-comput
countersign_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 signatur
countersign_log
Read the public stamp log (newest after a sequence number) and its head hash and public key.