nodeblink-mcp

MCP server for NodeBlink — gives AI agents the tools to move real money safely:

• create_settlement — create a USDC (or SOL) payment intent with exact amount, recipient, idempotency key, and expiry. Returns the pay instructions and Solana Pay reference key.
• verify_settlement — check a transaction signature against the settlement on-chain: exact amount, exact recipient, correct mint, single-use reference. Fail-closed — an agent cannot be fooled by an underpayment, a redirect, or a replayed transaction.
• create_subscription — non-custodial recurring USDC: the payer approves an exact allowance (amount × periods) on their own wallet once; NodeBlink charges each period and verifies every payment on chain. Returns the hosted approval URL.
• get_subscription / list_subscriptions — status, periods charged, remaining allowance, next charge time.
• cancel_subscription — stop future charges immediately or at period end.

NodeBlink is non-custodial: funds move wallet-to-wallet on Solana. The API verifies the outcome; it never holds money.

Setup

Get an API key at nodeblink.dev/dashboard (connect a Solana wallet — a test key is provisioned instantly). Test keys (nb_test_…) confirm without an on-chain payment, so agents can be developed end-to-end for free.

Claude Code

claude mcp add nodeblink --env NODEBLINK_API_KEY=nb_test_... -- npx -y nodeblink-mcp

Claude Desktop / Cursor / any MCP client

{
  "mcpServers": {
    "nodeblink": {
      "command": "npx",
      "args": ["-y", "nodeblink-mcp"],
      "env": { "NODEBLINK_API_KEY": "nb_test_..." }
    }
  }
}

Environment

| Variable | Required | Default | | ------------------- | -------- | --------------------------- | | NODEBLINK_API_KEY | yes | — | | NODEBLINK_API_URL | no | https://api.nodeblink.dev |

Docs

• API reference: https://nodeblink.dev/docs
• Machine-readable: https://nodeblink.dev/llms.txt and https://nodeblink.dev/api/v2/openapi.json