# Countersignatory (remote · countersignatory.com)

Live spot prices for verified human judgment, sign-off and notarisation.

- Trust score: 78/100 (medium)
- Change this week: +3
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-09-24

## Components

- remote · `countersignatory.com`: 78/100 (this document), [markdown](https://verifymcp.io/servers/com-countersignatory-mcp/countersignatory.md), [page](https://verifymcp.io/servers/com-countersignatory-mcp/countersignatory)

## Channel facts

- Endpoint: `https://countersignatory.com/mcp`
- Transports: `streamable-http`
- Auth: `none`
- Version: `0.1.2`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-09-24.

- **Endpoint Security**: 74/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - No authorisation is required to call this server. Every tool declares its destructiveHint and none is destructive, so open access doesn't expose one.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 69/100
  - AI-judged instruction clarity (excellent).
  - Context-footprint check failed: tool/resource definitions use about 588 tokens (~196/item across 3 items; 3 tools + 0 resources), over budget; trim descriptions and params.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 60/100
  - Stability observed for 18 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 97/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 92% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 3 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 3 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 100/100
  - Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.

## Install

### How do I install the Countersignatory MCP server?

Countersignatory is a hosted endpoint at https://countersignatory.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http com-countersignatory-mcp 'https://countersignatory.com/mcp'
```

### Cursor

```json
{
  "mcpServers": {
    "com-countersignatory-mcp": {
      "url": "https://countersignatory.com/mcp"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "com-countersignatory-mcp": {
      "type": "http",
      "url": "https://countersignatory.com/mcp"
    }
  }
}
```

### Codex

```toml
[mcp_servers.com-countersignatory-mcp]
url = "https://countersignatory.com/mcp"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "com-countersignatory-mcp": {
      "type": "remote",
      "url": "https://countersignatory.com/mcp",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add com-countersignatory-mcp --url 'https://countersignatory.com/mcp' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  com-countersignatory-mcp:
    url: "https://countersignatory.com/mcp"
```

### Netclaw

```json
{
  "McpServers": {
    "com-countersignatory-mcp": {
      "Transport": "http",
      "Url": "https://countersignatory.com/mcp"
    }
  }
}
```

### Vellum

```bash
assistant mcp add com-countersignatory-mcp -t streamable-http -u 'https://countersignatory.com/mcp'
```

### Other

```json
{
  "mcpServers": {
    "com-countersignatory-mcp": {
      "type": "http",
      "url": "https://countersignatory.com/mcp"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-09-24 (score 78, 0)

- [functional regression] Schema quality: 176 → 196
- [cosmetic] “countersignatory_quote” added an optional parameter “criteria”

### 2026-09-22 (score 78, +1)

No change was recorded against any check on this day. Stability & Change Management went from 50 to 53. That category is still filling its 30-day observation window: 15 days of observed history at the previous scan, 16 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-20 (score 77, +1)

No change was recorded against any check on this day. Stability & Change Management went from 43 to 47. That category is still filling its 30-day observation window: 13 days of observed history at the previous scan, 14 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-18 (score 76, +1)

No change was recorded against any check on this day. Stability & Change Management went from 37 to 40. That category is still filling its 30-day observation window: 11 days of observed history at the previous scan, 12 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-16 (score 75, +1)

- [security] Tool “countersignatory_spot_index” rewrote its description, which is the text the model reads
- [functional] Schema quality: good → excellent

### 2026-09-14 (score 74, 0)

- [security] Tool “countersignatory_register_interest” rewrote its description, which is the text the model reads
- [functional regression] Schema quality: 134 → 167
- [cosmetic] “countersignatory_quote” added an optional parameter “market”
- [cosmetic] “countersignatory_register_interest” added an optional parameter “market”
- [cosmetic] “countersignatory_register_interest” reworded the description of “quote_id”
- [cosmetic] “countersignatory_register_interest” made “quote_id” optional

### 2026-09-12 (score 74, +1)

No change was recorded against any check on this day. Stability & Change Management went from 17 to 20. That category is still filling its 30-day observation window: 5 days of observed history at the previous scan, 6 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-09-10 (score 73, +1)

No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.

## MCP tools (3)

### `countersignatory_quote` (~331 tokens)

Price a task

Get 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.

Input parameters:

- `consensus_n` (integer): Odd quorum size for the consensus tier.
- `criteria` (array): Required for a market priced per criterion, currently countersign.accessibility_statement, and rejected for any other. The criteria to examine, each priced from its published effort class and summed.…
- `jurisdiction` (string): Two-letter ISO 3166-1 alpha-2 country code, for example GB or US. UK is accepted as an alias for GB.
- `market` (string): The market id from the spot index, e.g. countersign.accessibility_statement. Pass the id verbatim.
- `max_price` (number): Your maximum bid in USD. The response says whether it clears.
- `sla_seconds` (integer, required): Deadline in seconds. 300 is five minutes.
- `task_type` (string, required)
- `tier` (string): check: one screened human, a score at stake. consensus: N humans, majority resolves. countersign: a named, register-verified professional attaches their name. seal: a regulated act by a licensed part…
- `unassisted` (boolean): Require unassisted human perception. Carries a premium.

### `countersignatory_register_interest` (~174 tokens)

Register interest

Record that you would buy. Send the quote_id from a countersignatory_quote response to say the quoted price would clear your use case. For a market on the spot index whose state is opening, which cannot be quoted yet, send its market id instead. This is the demand signal that decides which markets open first.

Input parameters:

- `market` (string): The market id from the spot index, for a market whose state is opening. Pass the id verbatim. Send this or quote_id, not both.
- `note` (string): What you would use it for, or what would have to change.
- `quote_id` (string): The quote_id from a countersignatory_quote response. Send this or market, not both.
- `would_pay` (boolean): Whether you would buy at the quoted price.

### `countersignatory_spot_index` (~83 tokens)

Spot Index

The 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. Use it for the reference rate table across all markets; use countersignatory_quote when you have a specific task and need a price for it.

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/com-countersignatory-mcp/countersignatory#diagnostics

## Score history

- 2026-09-24: 78
- 2026-09-23: 78
- 2026-09-22: 78
- 2026-09-21: 77
- 2026-09-20: 77
- 2026-09-19: 76
- 2026-09-18: 76
- 2026-09-17: 75
- 2026-09-16: 75
- 2026-09-15: 74
- 2026-09-14: 74
- 2026-09-13: 74
- 2026-09-12: 74
- 2026-09-11: 73
- 2026-09-10: 73
- 2026-09-09: 72
- 2026-09-08: 72
- 2026-09-07: 71
- 2026-09-06: 64

## Common questions

### What is the Countersignatory MCP server?

Countersignatory is an MCP server listed in the public MCP registry as com.countersignatory/mcp. Live spot prices for verified human judgment, sign-off and notarisation. This page covers its hosted endpoint (https://countersignatory.com/mcp).

### Is the Countersignatory MCP server safe to use?

Countersignatory scores 78 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the Countersignatory MCP server expose?

Countersignatory exposes 3 tools: countersignatory_quote, countersignatory_register_interest, countersignatory_spot_index. Their descriptions and schemas cost roughly 588 tokens of context every time the server is loaded.

### Does the Countersignatory MCP server require authentication?

No. We connected to Countersignatory without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Countersignatory MCP server still maintained?

Countersignatory is still listed as active in the MCP registry. We last reached this channel on 24 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://countersignatory.com/mcp
- Repository: https://github.com/Countersignatory/mcp
- Website: https://countersignatory.com/
- Changelog RSS feed: https://verifymcp.io/servers/com-countersignatory-mcp/countersignatory.xml
- Changelog JSON feed: https://verifymcp.io/servers/com-countersignatory-mcp/countersignatory.json
- HTML version of this page: https://verifymcp.io/servers/com-countersignatory-mcp/countersignatory