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u/BeginningSwing2020

r/mcp r/PKMS
▲ 1 r/mcp

I put my 6 MCP servers behind x402 micropayments on Base. Here's what worked and what didn't.

Solo dev. Spent last week wrapping my own MCP tools with x402 paywalls instead of API keys. Live on Base mainnet now.

The 6 services + per-call price:

- suprapack — skill discovery over 531 skills · $0.01

- vault-pro — Obsidian project scaffolder · $0.05

- power-pack — outreach email scorer (Haiku) · $0.01

- nanobanana — Gemini image gen/edit · $0.02

- royal-ruby — US consumer-law citation lookup · $0.05

- sentry-forge — debt dispute pack generator · $0.50

reddit.com
u/BeginningSwing2020 — 27 days ago
▲ 1 r/mcp

https://www.reddit.com/r/mcp/submit?title=Shipped%206%20paid%20x402%20services%20on%20Base%20mainnet%20in%20one%20session%20%E2%80%94%20npm%20%2B%20Fly%20%2B%20Coinbase%20CDP&text=Just%20wrapped%20every%20one%20of%20my%20MCP%2FAI%20tools%20with%20%60%40x402%2Fexpress%60%20%2B%20Coinbase%20CDP%20faci

reddit.com
u/BeginningSwing2020 — 27 days ago
▲ 0 r/mcp

title=Shipped%206%20paid%20x402%20services%20on%20Base%20mainnet%20in%20one%20session%20%E2%80%94%20npm%20%2B%20Fly%20%2B%20Coinbase%20CDP&text=Just%20wrapped%20every%20one%20of%20my%20MCP%2FAI%20tools%20with%20%60%40x402%2Fexpress%60%20%2B%20Coinbase%20CDP%20facilitator.%20Six%20live%20paid%20endpo

reddit.com
u/BeginningSwing2020 — 27 days ago
▲ 0 r/mcp

Shipped 6 paid x402 services on Base mainnet in one session — npm + Fly + Coinbase CDP

Just wrapped every one of my MCP/AI tools with `@x402/express` + Coinbase CDP facilitator. Six live paid endpoints, one Base mainnet wallet, all auto-discoverable via the x402 Bazaar:

  • `sentry-forge-x402.fly.dev/api/dispute-pack` — $0.50, 8-file consumer-debt dispute pack
  • `nanobanana-x402.fly.dev/api/generate-image` — $0.02, Gemini image gen
  • `vault-pro-x402.fly.dev/api/scaffold-project` — $0.05, Obsidian project/agent scaffolder
  • `suprapack-x402.fly.dev/api/find-skill` — $0.01, skill discovery over 531 curated skills
  • `power-pack-x402.fly.dev/api/score-email` — $0.01, outreach email scorer
  • `royal-ruby-x402.fly.dev/api/law-lookup` — $0.05, US consumer-law citations

Also published `mcp-x402-gateway` to npm for wrapping existing stdio/HTTP MCP servers: https://www.npmjs.com/package/mcp-x402-gateway

Stack: Express + `@x402/express` middleware + Fly.io auto-stop machines + Coinbase CDP facilitator + `declareDiscoveryExtension` for Bazaar listing.

Looking for feedback from MCP builders — especially on:

  1. What are you charging per call (if anything)?
  2. Has Bazaar discovery driven any real agent traffic yet?
  3. Anyone found good pricing signals for agent-to-agent vs human-facing tools?
reddit.com
u/BeginningSwing2020 — 27 days ago
▲ 1 r/mcp

[Tool] mcp-x402-gateway — wrap any MCP server with USDC + Stripe + license keys (no fork)

Just published v0.1.0 of `mcp-x402-gateway` — drop-in paywall layer for any stdio or HTTP MCP server.

**Three monetization paths in one package:**

- **x402 micropayments** — per-call USDC on Base via Coinbase CDP facilitator (zero protocol fee)

- **License keys** — HMAC-signed tokens for tiered access (Pro/Business/Enterprise)

- **Stripe fallback** — fiat subscriptions for non-crypto users

**Per-route pricing via JSON** — no code changes to your existing MCP.

```bash

npm install mcp-x402-gateway

reddit.com
u/BeginningSwing2020 — 28 days ago