PayperWork PayperDecision MCP

An official MCP server provided by PayperWork that enables AI agents to execute decision models over x402 payments. It supports yes/no, choice, and score questions as probabilities, allowing agents to make structured decisions based on state inputs with per-call pricing.

Endpoint and access

No sign-in to connect and list tools. Individual tools may still need a vendor account, credentials, or permissions; check the documented prerequisites.

Vendor evidenceStreamable HTTPNo sign-inEndpoint checked 2026-11-01Operated by PayperWork

You need:needs an x402-aware MCP client

MCP endpoint (Streamable HTTP)

https://payperwork.app/decide/mcp

Vendor documentation

What you can do with it

Execute yes/no decisions with probability outputs
Make multi-option choices with confidence scores
Score inputs against defined criteria ranges

Source and maintenance

Vendor evidenceRegistry 0.4.1

mcp-registry: app.payperwork/decisions@0.4.1 Project website

Protocol and capabilities

Server: payperwork-decide 0.4.1
MCP protocol: 2025-06-18
Tools: 2 advertised
Resources: Not advertised
Resource templates: Not advertised
Prompts: Not advertised

Server-advertised capabilities

{
  "tools": {
    "listChanged": true
  }
}

Server-provided instructions

Untrusted server output shown for inspection. It is not Koskamo guidance and is excluded from knowledge search.

Decision models for agents, paid per decision in USDC over x402: a state plus typed questions (noul, choice, score) answered as probabilities in one pass. The decide tool quotes its price in the 402 for your exact request; models is free. Security model: every call is priced before it runs (the 402 states the amount) and charged only if it succeeds; the paying wallet is the identity; no account or key exists to revoke. Full statement: GET / (JSON) or /llms.txt. Decisions: the state and questions go to the model's host and are not stored by PayperWork; a failed model call is not charged; the answer is a probability over the options you allowed, not a verified fact.

Tools

2 advertised

decide

Advertised by the server during the last successful anonymous check.

Advertised read-only

Answer typed questions about a state with probabilities, in one pass and no generated text. questions is a map of id to {type, instructions, criteria}: noul (yes/no; the answer is the probability of yes), choice (criteria {option_id: description}, 2 to 20; the answer names the option with a probability per option and a confidence), score (criteria [lowest, ..., highest], 2 to 10; the answer is the probability-weighted level, 0 = lowest). Up to 64 questions per call. Models: cloudflare/clef-flash, cloudflare/clef (default cloudflare/clef-flash). Price per decision is quoted in the 402 from your input size (input rate x 1.4 + $0.0005, minimum $0.001); output is free. Charged only if the model call succeeds. The answer is a probability, not a verified fact. Images not accepted yet.

decide input schema

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "required": [
    "state",
    "questions"
  ],
  "properties": {
    "model": {
      "type": "string"
    },
    "state": {},
    "questions": {
      "type": "object",
      "propertyNames": {
        "type": "string",
        "pattern": "^[A-Za-z0-9_.-]{1,100}$"
      },
      "additionalProperties": {
        "type": "object",
        "required": [
          "type",
          "instructions"
        ],
        "properties": {
          "type": {
            "enum": [
              "noul",
              "choice",
              "score"
            ],
            "type": "string"
          },
          "criteria": {
            "anyOf": [
              {
                "type": "object",
                "propertyNames": {
                  "type": "string"
                },
                "additionalProperties": {
                  "type": "string"
                }
              },
              {
                "type": "array",
                "items": {
                  "type": "string"
                }
              }
            ]
          },
          "instructions": {
            "type": "string",
            "maxLength": 2000,
            "minLength": 1
          }
        }
      }
    }
  }
}

decide annotations

{
  "title": "Decide",
  "readOnlyHint": true
}

models — Decision models

Advertised by the server during the last successful anonymous check.

Advertised read-only

List the decision models with rates, the pricing formula, limits and the request and answer shapes. Free.

models input schema

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {}
}

models annotations

{
  "readOnlyHint": true
}

Prompts

Not advertised

No prompt definitions available.

Resources

Not advertised

No resource definitions available.

30-day availability

Aggregated from read-only remote checks; this is not a tool-execution or security guarantee.

Successful checks: 1 of 1 (100%)
Average latency: 223 ms
95th percentile latency: 223 ms

Maintenance history

Public check and source-refresh events. Editorial and ownership records remain private.

Nov 1, 2026, 10:46 PM UTC · probe · passed · 223 ms · metadata changed · 2 tool(s)

Connect from your client

Each snippet registers the same endpoint; pick the client you use.

This server is operated by the named third party. Listing and endpoint checks are not an endorsement or a security audit. Review the operator's permissions, terms, and data handling before connecting. How listings are checked and corrected.

Claude Code

Run this once in a terminal. It registers the remote server. Use --scope project to write .mcp.json for the repo.

Claude Code configuration

claude mcp add --transport http payperdecision-mcp https://payperwork.app/decide/mcp

Codex

Run this once. Codex stores MCP servers in ~/.codex/config.toml (or .codex/config.toml in a trusted project).

Codex configuration

codex mcp add payperdecision-mcp --url https://payperwork.app/decide/mcp

Cursor

Merge this server into .cursor/mcp.json in your project, then enable payperdecision-mcp in your MCP settings.

Cursor configuration

{
  "mcpServers": {
    "payperdecision-mcp": {
      "url": "https://payperwork.app/decide/mcp"
    }
  }
}

Cline

Merge this into cline_mcp_settings.json (Cline → MCP Servers → Configure).

Cline configuration

{
  "mcpServers": {
    "payperdecision-mcp": {
      "type": "streamableHttp",
      "url": "https://payperwork.app/decide/mcp",
      "disabled": false
    }
  }
}

VS Code

Merge this server into .vscode/mcp.json. Use MCP: List Servers to start payperdecision-mcp and inspect its tools.

VS Code configuration

{
  "servers": {
    "payperdecision-mcp": {
      "type": "http",
      "url": "https://payperwork.app/decide/mcp"
    }
  }
}

Gemini CLI

Run this once. It writes .gemini/settings.json in the current project; pass --scope user for ~/.gemini/settings.json.

Gemini CLI configuration

gemini mcp add --transport http payperdecision-mcp https://payperwork.app/decide/mcp

Claude Desktop

Merge this into claude_desktop_config.json (macOS: ~/Library/Application Support/Claude/, Windows: %APPDATA%\Claude\), then restart Claude Desktop.

Claude Desktop configuration

{
  "mcpServers": {
    "payperdecision-mcp": {
      "url": "https://payperwork.app/decide/mcp"
    }
  }
}

Windsurf

Merge this into ~/.codeium/windsurf/mcp_config.json, then refresh MCP in Cascade. Windsurf remote servers use serverUrl, not url.

Windsurf configuration

{
  "mcpServers": {
    "payperdecision-mcp": {
      "serverUrl": "https://payperwork.app/decide/mcp"
    }
  }
}

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