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Agent Tollgate Engine MCP Server

by SkinWinKing
Developer ToolsLow Risk10.0MCP RegistryRemote
Free

Server data from the Official MCP Registry

x402 pay-per-call order book signals, token rug audits and fee-bearing swap routes for agents.

About

x402 pay-per-call order book signals, token rug audits and fee-bearing swap routes for agents.

Remote endpoints: streamable-http: https://skinwinking.com/mcp

Security Report

10.0
Low Risk10.0Low Risk

Valid MCP server (1 strong, 1 medium validity signals). No known CVEs in dependencies. Imported from the Official MCP Registry.

3 tools verified · Open access · No issues found

Security scores are indicators to help you make informed decisions, not guarantees. Always review permissions before connecting any MCP server.

Permissions Found in Source Code

Found by scanning the linked source code. This listing connects to a hosted endpoint, so none of this runs on your machine: it describes what the server software does where it is hosted.

HTTP Network Access

Connects to external APIs or services over the internet.

env_vars

Applies to the server that hosts this plugin, not to your machine.

How to Connect

Remote Plugin

No local installation needed. Your AI client connects to the remote endpoint directly.

Add this to your MCP configuration to connect:

{
  "mcpServers": {
    "com-skinwinking-agent-tollgate": {
      "url": "https://skinwinking.com/mcp"
    }
  }
}

Documentation

View on GitHub

From the project's GitHub README.

agent-tollgate-engine

Live at https://skinwinking.com. Machine-readable: /llms.txt, /openapi.json, MCP at https://skinwinking.com/mcp.

Pay-per-call trading intelligence and fee-bearing swap routing for autonomous agents, on Cloudflare Workers.

Revenue paths:

  1. x402 micropayments in USDC (Polygon or Solana) for orderbook-imbalance (0.02 USDC) and token-audit (0.20 USDC).
  2. 30 bps platform fee on swaps built by quote-and-build (Jupiter on Solana, LI.FI cross-chain/EVM).

All payments go straight to the merchant addresses in wrangler.toml. The server holds no keys and no funds.

Layout

PackageRole
packages/coreconfig, route catalog, on-chain payment verification (EVM, Solana, x402 facilitator), replay protection interface
packages/api-workerHono Worker, x402PaymentGate middleware, Durable Object nonce store, route handlers
packages/omni-routerJupiter (Solana) and LI.FI (cross-chain) quote builders with fee embedding
packages/discovery/llms.txt, /openapi.json, MCP server (HTTP at /mcp, stdio via npm run mcp)
packages/simulation-agentend-to-end simulated agent

Local run

npm install
cp .env.example .dev.vars        # then set SOLANA_RPC_URL and EVM_RPC_URL to private endpoints
npm run dev                      # http://127.0.0.1:8787, simulation receipts enabled

npm run dev sets SIM_SECRET, which enables HMAC simulation receipts (Bearer sim_...). Never set SIM_SECRET in production.

If port 8787 is busy: npx wrangler dev --port 8799 --var SIM_SECRET:dev-simulation-secret and BASE_URL=http://127.0.0.1:8799.

Simulation

With npm run dev running in another terminal:

npm run simulate

Steps: unpaid call returns 402, simulated payment succeeds, replay is rejected, a Solana swap quote proves the fee account is inside the built transaction, a Polygon to Base quote proves the LI.FI integrator fee.

Production prerequisites

  1. RPC: public endpoints are rate-limited or blocked. Use private ones. 
    npx wrangler secret put SOLANA_RPC_URL
npx wrangler secret put EVM_RPC_URL
  2. LI.FI integrator: register LIFI_INTEGRATOR at https://portal.li.fi, set the fee wallet to the EVM payout address, and set the fee to 0.3%. Without it LI.FI rejects quotes that carry fee.
  3. Solana fee token accounts: the Jupiter fee is paid in the output token to the merchant's associated token account for that mint. The route returns FEE_ACCOUNT_MISSING until that account exists. Receiving a small amount of the token (or creating the ATA in Phantom) creates it. USDC and wSOL cover the main pairs.
  4. Optional X402_FACILITATOR_URL enables X-402-Signature settlement through an x402 facilitator.

Deploy

npx wrangler deploy

Attach the domain under Workers & Routes in the Cloudflare dashboard (custom domain on the worker).

Payment proofs

HeaderMeaning
Authorization: Bearer 0x<64 hex>Polygon USDC transfer to the merchant, at least the route price, at least EVM_MIN_CONFIRMATIONS deep, younger than PAYMENT_MAX_AGE_SEC
Authorization: Bearer <base58 signature>Solana USDC transfer, confirmed commitment
X-402-Signature: <base64 payload>x402 payload verified and settled via the facilitator

Each proof is accepted once (Durable Object, 7 day TTL).

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