Countersignatory

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

Quick Install

Automated & IDE Setup

Copy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.

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Manual Client & Custom JSON ConfigExpand JSON ▾

Client Config & Setup

Remote HTTP

Choose your client or environment

Target File:~/Library/Application Support/Claude/claude_desktop_config.json

claude_desktop_config.json

{
  "mcpServers": {
    "countersignatory-2": {
      "url": "https://countersignatory.com/mcp"
    }
  }
}

💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.

Documentation Overview

Countersignatory

The going rate for a human minute.

Countersignatory publishes the going rate for a human minute: a live spot index for verified human judgment, and a quote engine that prices a task before you commit to it. Four markets, ranked by what the responder has at stake: Check (one screened human, a quality score at stake), Consensus (several humans who must agree), Countersign (a named, register-verified professional who signs the record), and Seal (a regulated act such as remote notarisation). Quotes return an indicative price, a band, urgency and off-hours multipliers, alternatives that would clear a lower bid, and the implied rate per human minute. A published wage floor of $0.25 net per active minute is in force, responders are never charged, and every seeded number's derivation is public. The quote engine and index are live; the market itself opens after the current demand-measurement window. Keys are free, instant and unapproved.

MCP server

Endpoint: https://countersignatory.com/mcp
Transport: Streamable HTTP, stateless, no sessions
Auth: none required. An optional bearer key, free and instant from POST https://countersignatory.com/v1/keys, is recommended so a caller counts as one caller.

Tools

Three tools are served. The descriptions below are exactly what the endpoint returns from tools/list.

countersignatory_quote

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.

Parameters: task_type, sla_seconds, tier, consensus_n, unassisted, jurisdiction, max_price.

countersignatory_register_interest

Record 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.

Parameters: quote_id, would_pay, note.

countersignatory_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.

Example calls

bash

# A free key, instant, no approval
curl -s -X POST https://countersignatory.com/v1/keys -H 'content-type: application/json' -d '{}'

# Price a three-human consensus judgment, needed within the hour, max bid $5
curl -s -X POST https://countersignatory.com/v1/quotes \
  -H 'content-type: application/json' \
  -d '{"task_type":"judgment","tier":"consensus","consensus_n":3,"sla_seconds":3600,"max_price":5}'

Methodology: https://countersignatory.com/methodology

Built by Countersignatory Ltd. The launch essay, "The going rate for a human minute," is at https://countersignatory.com/essay.

Read the full README →View source on GitHub →

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Frequently Asked Questions about Countersignatory

Add the following block to your claude_desktop_config.json under mcpServers: "mcpServers": { "countersignatory": { "command": "npx", "args": ["-y", "Countersignatory"] } }

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Technical Specs & Signals

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Adoption & activity1/15

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Documentation Overview

Countersignatory

The going rate for a human minute.

MCP server

Endpoint: https://countersignatory.com/mcp
Transport: Streamable HTTP, stateless, no sessions
Auth: none required. An optional bearer key, free and instant from POST https://countersignatory.com/v1/keys, is recommended so a caller counts as one caller.

Tools

Three tools are served. The descriptions below are exactly what the endpoint returns from tools/list.

countersignatory_quote

Parameters: task_type, sla_seconds, tier, consensus_n, unassisted, jurisdiction, max_price.

countersignatory_register_interest

Parameters: quote_id, would_pay, note.

countersignatory_spot_index

Example calls

bash

# A free key, instant, no approval
curl -s -X POST https://countersignatory.com/v1/keys -H 'content-type: application/json' -d '{}'

# Price a three-human consensus judgment, needed within the hour, max bid $5
curl -s -X POST https://countersignatory.com/v1/quotes \
  -H 'content-type: application/json' \
  -d '{"task_type":"judgment","tier":"consensus","consensus_n":3,"sla_seconds":3600,"max_price":5}'

Methodology: https://countersignatory.com/methodology

Built by Countersignatory Ltd. The launch essay, "The going rate for a human minute," is at https://countersignatory.com/essay.