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PathCourse Health (PCH)

pathcourse-health/pch-mcp-server

Connects Claude to PathCourse Health's gateway for discounted LLM inference and USDC-based agent payments. You get 14 tools: 7 free (model pricing, cost estimation, agent identity and reputation lookup via ERC-8004) and 7 authenticated (inference requests, balance checks, deeper reputation queries). The standout feature is provisioning an API key from inside Claude Desktop by paying with USDC, no signup form required. Use it when you want cheaper inference than standard APIs or need to verify agent identities and Path Scores. Works across Claude Desktop, Cursor, Cline, Continue.dev, and Zed via npm, plus Python clients through PyPI.

tools: 14
auth: Secret needed
transport: STDIO
env vars: 2
last updated: May 10, 2026

Tools

14 tools

Public tool metadata for what this MCP can expose to an agent.

pch_modelsList all PCH models with rates and tier requirements

List all PCH models with rates and tier requirements

No parameter schema in public metadata yet.

pch_estimateEstimate cost of an inference request before running it

Estimate cost of an inference request before running it

No parameter schema in public metadata yet.

pch_statusGateway health and service status

Gateway health and service status

No parameter schema in public metadata yet.

pch_provisionGet USDC payment instructions to obtain an API key

Get USDC payment instructions to obtain an API key

No parameter schema in public metadata yet.

pch_paySubmit USDC payment proof; returns API key + first inference

Submit USDC payment proof; returns API key + first inference

No parameter schema in public metadata yet.

pch_lookup_agent_identityLookup an agent's ERC-8004 identity record

Lookup an agent's ERC-8004 identity record

No parameter schema in public metadata yet.

pch_get_path_scoreLook up an agent's Path Score (0-1000)

Look up an agent's Path Score (0-1000)

No parameter schema in public metadata yet.

pch_get_agent_history12-month trend of an agent's score components

12-month trend of an agent's score components

No parameter schema in public metadata yet.

pch_verify_certificationVerify a PCH-issued certification

Verify a PCH-issued certification

No parameter schema in public metadata yet.

pch_compare_costsCompare PCH model cost vs GPT-4o, Claude Sonnet, Claude Haiku

Compare PCH model cost vs GPT-4o, Claude Sonnet, Claude Haiku

No parameter schema in public metadata yet.

pch_inferenceRun LLM inference on a PCH model

Run LLM inference on a PCH model

No parameter schema in public metadata yet.

pch_balanceCheck remaining USDC balance and current tier

Check remaining USDC balance and current tier

No parameter schema in public metadata yet.

pch_check_agent_reputationDeeper reputation lookup ($0.001 USDC per query)

Deeper reputation lookup ($0.001 USDC per query)

No parameter schema in public metadata yet.

pch_my_accountSelf-service balance + identity + recent activity

Self-service balance + identity + recent activity

No parameter schema in public metadata yet.

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Configuration

PCH_API_KEYsecret

Your PCH API key (format: pch_prod_b_...). Optional — many tools work without it. Mint one via the pch_provision tool by sending 5 USDC on Base.

PCH_GATEWAY_URLdefault: https://gateway.pathcoursehealth.com

Override the PCH gateway URL. Defaults to https://gateway.pathcoursehealth.com (production mainnet).

Readme

PCH MCP Server

Drop-in MCP server for PathCourse Health (PCH) — cheaper LLM inference, USDC-based agent payments, and agent identity / reputation lookup. Works in Claude Desktop, Cursor, Cline, Continue.dev, and Zed.

14 tools. 7 free (no API key needed) and 7 authenticated. Includes a unique flow that lets you buy a PCH API key from inside Claude Desktop using USDC — no signup form, no email verification.

Install

Claude Desktop, Cursor, Cline, Continue.dev, Zed (npm)

Add to your client's MCP config:

{
  "mcpServers": {
    "pch": {
      "command": "npx",
      "args": ["-y", "@pathcourse/mcp-server"],
      "env": {
        "PCH_API_KEY": "pch_prod_b_..."
      }
    }
  }
}

If you don't have a PCH API key yet, omit the env block. Many tools work without authentication; you can obtain a key via the pch_provision tool.

Per-client install instructions:

Python clients (PyPI)

View the full README on GitHub

Details

Repository: github.com/pathcourse-health/pch-mcp-server
Website: pathcoursehealth.com
Category: AI & LLM Tools
Package: @pathcourse/mcp-server
Transport: STDIO
Auth: Required
Registry: MCP registry, active

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