Gatefare — paid-API marketplace

Created By

Gatefarea month ago

Marketplace MCP for paid HTTP APIs. Pay per call in USDC on Base via the open x402 standard. Non-custodial — keys stay in env.

# payments

# crypto

Overview Content Tools Comments

Overview

Gatefare — Paid-API Marketplace MCP

Gatefare turns the Gatefare catalog of paid x402 APIs into MCP tools. Drop the server into Claude Desktop, Cursor, Cline, Continue, Windsurf, or Zed and your agent can:

Discover paid endpoints
Check publisher reputation
See a sample response
Estimate cost
Check its USDC balance on Base
Make paid calls
Register its own upstream as a paid endpoint (agent-as-a-business)

Money never touches Gatefare. Each payment settles on-chain through the Coinbase x402 facilitator and lands directly in an immutable 0xSplits contract that pays the publisher 90% and the platform 10%. The agent's wallet is configured via the host config and never leaves the process.

Features

Non-custodial — private keys stay in your environment
Pay-per-call in USDC on Base via the open x402 standard
On-chain revenue splits via 0xSplits (90/10)
15 tools across 5 domains
Works with Claude Desktop, Cursor, Cline, Continue, Windsurf, Zed

Tools (15 total)

Discovery

gatefare.search_apis — full-text catalog search with price/category filters
gatefare.get_api — full details for a single API
gatefare.list_categories — all categories with API counts
gatefare.suggest — autocomplete suggestions

Trust

gatefare.publisher_reputation — positive-only trust badges
gatefare.sample_response — publisher-pasted representative response

Safety

gatefare.report_abuse — flag malicious or stolen APIs

Buyer (needs `WALLET_PRIVATE_KEY`)

gatefare.call_api — make a paid call (auto 402 → sign → retry)
gatefare.get_wallet_balance — USDC + ETH on configured network
gatefare.estimate_cost — total USD cost for N planned calls

Publisher (needs `GATEFARE_PAT`)

gatefare.register_api — publish a new paid endpoint
gatefare.list_my_apis — your published APIs with stats
gatefare.update_api — edit metadata / price / target URL
gatefare.get_revenue — revenue time-series + totals
gatefare.distribute — trigger on-chain distribute() payout

Installation

{
  "mcpServers": {
    "gatefare": {
      "command": "npx",
      "args": ["-y", "@gatefare/mcp"],
      "env": {
        "GATEFARE_PAT": "<YOUR_GATEFARE_PAT>",
        "WALLET_PRIVATE_KEY": "<YOUR_WALLET_PRIVATE_KEY>",
        "WALLET_BUDGET_USD": "5.00",
        "WALLET_NETWORK": "eip155:8453"
      }
    }
  }
}

Environment Variables

Name	Required	Secret	Default	Description
`WALLET_PRIVATE_KEY`	optional	yes	—	EVM private key (32 bytes hex). Needed for buyer tools. Stays on user's machine.
`WALLET_BUDGET_USD`	optional	no	unlimited	In-process spend cap; `call_api` throws `BUDGET_EXHAUSTED` when reached.
`WALLET_NETWORK`	optional	no	`eip155:8453`	Base mainnet by default; use `eip155:84532` for Sepolia testnet.
`GATEFARE_PAT`	optional	yes	—	Personal Access Token (`gfpat_...`) from gatefare.io/dashboard/tokens. Needed for publisher tools.
`GATEFARE_BASE_URL`	optional	no	`https://gatefare.io`	Override for self-hosted Gatefare instances.

Demo

Gatefare MCP demo

License

MIT

Server Config

{
  "mcpServers": {
    "gatefare": {
      "command": "npx",
      "args": [
        "-y",
        "@gatefare/mcp"
      ],
      "env": {
        "GATEFARE_PAT": "<YOUR_GATEFARE_PAT>",
        "WALLET_PRIVATE_KEY": "<YOUR_WALLET_PRIVATE_KEY>",
        "WALLET_BUDGET_USD": "5.00",
        "WALLET_NETWORK": "eip155:8453"
      }
    }
  }
}

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