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MCP verified MIT Self-run

Proxypi Mcp

mcp-alexislspk-proxypi-mcp · by AlexisLspk

Self-healing API proxy MCP for Cursor, Claude Code, or any MCP-compatible client. Send any REST request, if it fails, ProxyPI reads the error, diagnoses the problem using Claude, patches the request, and retries. Successful fixes are remembered and applied instantly next time, without calling Claude.

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Install

$ agentstack add mcp-alexislspk-proxypi-mcp

✓ scanned · ✓ verified — works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ● Environment & secrets Used
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

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About

What it is

Self-healing API proxy MCP for Cursor, Claude Code, or any MCP-compatible client. Send any REST request — if it fails, ProxyPI reads the error, diagnoses the problem using Claude, patches the request, and retries. Successful fixes are remembered and applied instantly next time, without calling Claude.

How it works

You: proxypi_request → POST https://api.example.com/users

ProxyPI:  try → fail → diagnose (Claude) → patch → retry → remember

Next time the same error occurs on the same host and path, the fix is applied from memory instantly — no Claude call needed.

Demo

npx proxypi

▶ proxypi sending → POST https://api.example.com/users ⚠ proxypi 422 — checking memory for known fix... ▶ proxypi healing attempt 1 — asking Claude to diagnose... ▶ proxypi retrying with patch: body uses 'name' but API expects 'full_name' ✔ proxypi healed in 1 attempt — 200 — 1843ms

Install

npx proxypi

Config

Add to .cursor/mcp.json (project root or ~/.cursor/mcp.json):

{
  "mcpServers": {
    "proxypi": {
      "command": "npx",
      "args": ["-y", "proxypi"],
      "env": {
        "ANTHROPIC_API_KEY": "your-api-key-here"
      }
    }
  }
}

Restart Cursor. Four tools: proxypi_request, proxypi_history, proxypi_replay, proxypi_clear.

Tools

| Tool | Description | |------|-------------| | proxypi_request | Send any REST request — auto-heals on failure | | proxypi_history | View past fixes, filter by API host | | proxypi_replay | Re-run a stored fix to verify it still works | | proxypi_clear | Wipe all healing records from memory |

What ProxyPI can fix

| Error | What ProxyPI does | |-------|------------------| | 401 Unauthorized | Fixes Authorization header format (Bearer vs Basic vs token prefix) | | 400 Bad Request | Fixes body field names, types, or missing required fields | | 422 Unprocessable | Corrects schema mismatches, enum values, date formats | | 404 Not Found | Fixes URL path, API version prefix, trailing slashes | | 405 Method Not Allowed | Switches to the correct HTTP method |

More

  • Memory: Fixes stored in ~/.proxypi/memory.json
  • Env: ANTHROPIC_API_KEY required (only when using healing — server starts without it)
  • Local dev: cp .env.example .env, add key, then npm run dev
  • Tests: npm test

MIT · GitHub

Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.

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