Nano Pay MCP Server

Self-custodied Nano (XNO) wallet + x402 payment client and merchant server, built for AI agents. Client spends; nano-pay serve earns - paid endpoints, on-ledger verification/settlement (no facilitator), a starter faucet, and the railHint x402 extension that teaches visiting agents how to onboard (see SPEC-railhint.md). Site: site/index.html + site/llms.txt.

People connecting this server to Claude, Cursor, VS Code, or another MCP client. The project is written in Python.

VERIFIED ACTIVE

LAST COMMIT 2026-08-24 · ★ 3 · #168 OF 848 MAINTAINED OTHER · VERIFIED 2026-08-25

MIT · Python servers · how we verify → /methodology

01 · Install Nano Pay

Claude Code

claude mcp add feeless402-feeless402 -- uvx feeless402

Claude Desktop / Cursor / VS Code - add to config

{
  "mcpServers": {
    "feeless402-feeless402": {
      "command": "uvx",
      "args": [
        "feeless402"
      ]
    }
  }
}

Same JSON for Cursor. For VS Code, rename the top-level key from `mcpServers` to `servers`.

Using another client? Same JSON, different key

Claude Desktop · mcpServers

Cursor · mcpServers

VS Code · servers

Windsurf · mcpServers

Zed · context_servers

Cline · mcpServers

Roo Code · mcpServers

Continue · mcpServers

LibreChat · mcpServers

Gemini CLI · mcpServers

Codex CLI · mcp_servers

Full setup guides: every client.

02 · Evidence

Security posture

What to check before giving this server access to your agent - from the registry, GitHub, and our own probes. We don't score safety; we show what's verifiable.

runs as local process (stdio) - runs on your machine with your user's permissions

repo age created 2026-08-02 - young repo, little track record yet

license MIT - declared in the repository

pypi package feeless402 - check the name against the project README before installing (PyPI has no namespace ownership)

registry vendor namespace com.feeless402 - domain-verified with the official MCP registry

03 · What Nano Pay can do

Prose above is summarized from the project's README and registry record - no invented capabilities.

Latest releases

v0.2.3 · 2026-08-10

Fixes focused on the first five minutes of a new user's experience: · nano-pay claim now prints the claim result before pre-computing proof-of-work. Previously a successful claim showed nothing for the ~2 minutes of…

04 · Who maintains Nano Pay

nano-pay is maintained by feeless402. It's the only MCP server we track from this author; the repo dates to Aug 2026.

05 · Facts

repository: github.com/feeless402/feeless402
website: https://feeless402.com/
category: other - ranked #168 of 848 actively-maintained other servers as of 2026-08-25.
release cadence: 1 release in the last 90 days (latest 2026-08-10)
registry: com.feeless402/nano-pay (active, first published 2026-08-02 · 3 versions)
packages: pypi:feeless402

06 · Nano Pay FAQ

What is Nano Pay?

Is Nano Pay still maintained?

Yes - as of 2026-08-25, its last commit was 2026-08-24 and it shipped 1 release in the last 90 days. We re-verify nightly.

How do I install Nano Pay?

Run `uvx feeless402`. You can also paste the ready-made client config above.

Does Nano Pay run locally?

Yes - it's a stdio server: it runs on your machine (via uvx) with your user's permissions. Your data stays local unless the server itself calls external APIs.

07 · Alternatives to Nano Pay

Alternatives to Nano Pay

Maintained other servers if Nano Pay isn't the fit.

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