Countersignatory
https://countersignatory.com/mcp ↗
Description
Live spot prices for verified human judgment, sign-off and notarisation.
What our measurements say
Countersignatory is a remote MCP server published at countersignatory.com. It has been probed 6 times since 9/12/2026. It answered in 6 of them (100.0%), a near-uninterrupted record. Median response time is 360 ms, placing it among the faster endpoints. It offers a narrow, focused set of 3 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Agent readability score
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
Agent readability score
Strengths
- Tool names clearly indicate their purpose
- Distinct tool functions with no overlap
- Parameters include required/optional indicators
Weaknesses
- Third tool's description is vague without parameters
- No mention of error handling or constraints
- Some parameter descriptions are incomplete
countersignatory_spot_index— Description lacks parameter details and error handling
Verdict
Event narrative
Sign up free to generateRaw observations
| Run | Era | Modern | ms | Legacy | ms | Versions |
|---|---|---|---|---|---|---|
| 2026-09-13 01:33:33 | Legacy | 400 | 216 | 200 | 215 | 2025-11-25 |
| 2026-09-12 23:31:36 | Legacy | 400 | 426 | 200 | 420 | 2025-11-25 |
| 2026-09-12 21:29:15 | Legacy | 400 | 260 | 200 | 254 | 2025-11-25 |
| 2026-09-12 19:27:29 | Legacy | 400 | 224 | 200 | 247 | 2025-11-25 |
| 2026-09-12 17:24:09 | Legacy | 400 | 368 | 200 | 385 | 2025-11-25 |
| 2026-09-12 15:21:42 | Legacy | 400 | 360 | 200 | 391 | 2025-11-25 |
Schema compliance
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
- tools/list schema valid
- inputSchema is valid JSON Schema
- Smoke test not run this round
- Cold-start: cold 48ms → warm 53ms (penalty 0ms)
Tools
Tools the server advertised in the latest measurement — measured, not catalog-claimed.
countersignatory_quoteGet the current spot price to have a verified human check, agree on, sign off or notarise something. Use when an agent needs human judgment, accountability or a signature, and needs to know the cost and time before committing. Returns an indicative price, a band, what would clear at a lower bid, and the implied rate per human minute.
task_typestringrequiredsla_secondsintegerrequiredtierstringconsensus_nintegerunassistedbooleanjurisdictionstringmax_pricenumber
countersignatory_register_interestRecord that the quoted price would clear your use case and you would buy at it. Takes the quote_id from a countersignatory_quote response. This is the demand signal that decides which markets open first.
quote_idstringrequiredwould_paybooleannotestring
countersignatory_spot_indexThe public Countersignatory Spot Index: the going rate for verified human judgment by market, with the urgency and off-hours multipliers, the published wage floor, and the derivation of every seeded number.
Availability history
Each block is one measurement round. Green: working response. Amber: responded but the server was returning errors (5xx). Red: no response at all.
Era history
Each cell is one probe run. Faded cells are incomplete probes — one leg did not answer, so the era is inconclusive.
Response time history
The two probe legs separately: modern server/discover and legacy initialize.
Event log
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
- Added to watch — era: Legacy
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Add this badge to your README — it updates automatically as measurements change.
[](https://mcpmetrics.io/servers/com-countersignatory-mcp)<a href="https://mcpmetrics.io/servers/com-countersignatory-mcp"><img src="https://mcpmetrics.io/badge/com.countersignatory/mcp/era.svg" alt="mcpmetrics"></a>You are seeing the last 7 days. Sign up for the full history. Which check failed and why is in the dashboard.
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