mcp-l402-gate

L402 Lightning paywall + Depth-of-Identity score gate for MCP.

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What it can do

  • L402 Gate Challenge: Request a fresh PoW challenge from the PowForge L402 gate. Returns {nonce, difficulty}. Find a `solution` such that SHA-256(nonce+solution) starts with `difficulty` leading hex ze
  • L402 Gate Verify: Verify a gate access attempt. Three shapes: (a) {nonce, solution} verifies a PoW solve and returns a 5-min token; (b) {request_invoice: true} mints a fresh L402 bolt11 invoice for th
  • L402 Gate Score: Look up the Depth-of-Identity (DoI) score for a Nostr pubkey via the public PowForge oracle. Returns {composite, rank, depth, score_version}. Use the composite scalar against your own

What data it sees

Do you need an account

No: the server works without sign-in

L402 Lightning paywall + Depth-of-Identity score gate for MCP. Three tools — l402_gate_challenge, l402_gate_verify, l402_gate_score — let agents pay per-call without accounts: solve a PoW challenge for the free tier, or pay a Lightning invoice (L402) for the paid tier. The bundled l402_gate_score tool looks up the Depth-of-Identity composite for any Nostr pubkey from the public PowForge oracle, so server operators can compose price + identity gating with one call. Stdlib only — no MCP SDK dependency. Speaks to live gate.powforge.dev and identity.powforge.dev.

How to connect

How to connect mcp-l402-gate to Claude

The server address to paste into Claude settings:

https://mcp-l402-gate--zekebuilds.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect mcp-l402-gate to ChatGPT

The server address to paste into ChatGPT settings:

https://mcp-l402-gate--zekebuilds.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect mcp-l402-gate to Cursor

The server address to paste into Cursor settings:

https://mcp-l402-gate--zekebuilds.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (3)

Raw names from tools/list. Only developers need these.

l402_gate_challengeRequest a fresh PoW challenge from the PowForge L402 gate. Returns {nonce, difficulty}. Find a `solution` such that SHA-256(nonce+solution) starts with `difficulty` leading hex zeros, then call l402_gate_verify with {nonce, solution}. Free tier — no payment required.
l402_gate_verifyVerify a gate access attempt. Three shapes: (a) {nonce, solution} verifies a PoW solve and returns a 5-min token; (b) {request_invoice: true} mints a fresh L402 bolt11 invoice for the Lightning-skip tier; (c) {payment_hash} polls for L402 payment and returns the token once paid. Returns {token, method, content} on success.
l402_gate_scoreLook up the Depth-of-Identity (DoI) score for a Nostr pubkey via the public PowForge oracle. Returns {composite, rank, depth, score_version}. Use the composite scalar against your own minScore policy. Pairs with l402_gate_verify for compose-able L402 + identity gating.