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io.github.CarbonCashmere/x402-mcp

io.github.CarbonCashmere/x402-mcp·v0.2.2·Finance & Payments
Quality Score
80
/100

177 crypto market intel endpoints with auto x402 USDC micropayments from your AI agent

§00  Trust verdict · v1 advisory ·  method
UNVERIFIEDno verdict on file

Verdict not yet evaluated for this tool. The hybrid eval runs adversarial cases first; coverage rolls out as the corpus expands. Until a verdict is recorded, an agent should treat this tool as not-yet-cleared and fall back to its own checks. Method: hybrid eval, four-state verdict, honest limits.

§01  Install
Claude Desktop (claude_desktop_config.json)
{
  "mcpServers": {
    "x402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@carbon-cashmere/x402-mcp"
      ],
      "env": {
        "EVM_PRIVATE_KEY": "<your-evm_private_key>",
        "SVM_PRIVATE_KEY": "<your-svm_private_key>",
        "X402_TOOL_LIMIT": "100"
      }
    }
  }
}
Cursor (.cursor/mcp.json)
{
  "mcpServers": {
    "x402-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@carbon-cashmere/x402-mcp"
      ],
      "env": {
        "EVM_PRIVATE_KEY": "<your-evm_private_key>",
        "SVM_PRIVATE_KEY": "<your-svm_private_key>",
        "X402_TOOL_LIMIT": "100"
      }
    }
  }
}
Cline (cline_mcp_settings.json)
npx -y @carbon-cashmere/x402-mcp
§02  Environment variables
EVM_PRIVATE_KEY
secret

0x-hex private key for Base/Polygon/Arbitrum USDC payments (dedicated wallet)

SVM_PRIVATE_KEY
secret

base58 Solana keypair for Solana USDC payments (optional)

X402_TOOL_LIMIT

Max tools exposed (1-177, default 100)

§03  MCP Quality Score  ·  methodology
freshness
25
completeness
10
installability
25
documentation
15
stability
5
§04  Alternatives in Finance & Payments