Skip to contentx402-api MCP Server — Install for Claude, Cursor & VS Code | MCPpediaXx402-api MCP Server
Eight paid DeFi tools: prices, gas, swaps, token security, holders, yields, funding and wallets
37LimitedInstall
~/Library/Application Support/Claude/claude_desktop_config.json
{
"mcpServers": {
"fernsugi-x402-api-mcp-server": {
"command": "npx",
"args": [
"-y",
"@x402-api/mcp-server@1.0.5"
],
"env": {
"X402_API_BASE_URL": "",
"X402_WALLET_PRIVATE_KEY": "YOUR_X402_WALLET_PRIVATE_KEY",
"X402_MAX_PER_CALL_USDC": "",
"X402_REFERRAL_SOURCE": "",
"X402_EXPECTED_PAY_TO": ""
}
}
}
}
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Environment
| Name | Required | Notes |
|---|
| X402_API_BASE_URL | No | x402 API base URL (default: https://x402-api.fly.dev) |
| X402_WALLET_PRIVATE_KEY | No | Base wallet private key for optional EIP-3009 auto-pay. Default mode inspects payment requirements without paying. Secret. |
| X402_MAX_PER_CALL_USDC | No | Maximum USDC allowed per automatic tool call (default: 0.01) |
| X402_REFERRAL_SOURCE | No | Optional referral label: github, glama, nohumans, bazaar, mcp, eliza, demo or test. Default mcp. |
| X402_EXPECTED_PAY_TO | No | Expected payment recipient; defaults to the official x402-api wallet. Change only when using a trusted alternative deployment. |
Tools show up when the registry metadata or the repository README lists them. GitHub enrichment fills this in when a token is configured.
About
Eight paid DeFi tools: prices, gas, swaps, token security, holders, yields, funding and wallets
FAQ
- What is x402-api?
- Eight paid DeFi tools: prices, gas, swaps, token security, holders, yields, funding and wallets
- How do I install x402-api?
- Pick a client above and copy the generated config. Cursor and VS Code also have a deep link when the server can run locally or remotely.
- Is x402-api official?
- No. Registry-listed is not the same as vendor-official. Read the methodology for the difference.
- How is the trust score calculated?
- This listing scores 37 (Limited). The formula is published on the methodology page.
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