170+ micro-API endpoints paywalled via x402 on Base. Each call costs $0.10–$1.00 USDC.

npm install
npm start
# Server runs on http://localhost:4020

Endpoints return 402 Payment Required until paid via x402. Use an x402-compatible client:

import { wrapAxios } from "x402-axios";
import axios from "axios";

const client = wrapAxios(axios, wallet);
const { data } = await client.get("https://httpay.xyz/api/fortune");

Use these machine-readable discovery docs to surface serious endpoints first:

• /.well-known/agent-priority.json → ranked, high-signal shortlist
• /x402-manifest.json → full catalog (backward compatible, now includes agentTags + agentPriorityScore)
• /.well-known/x402-bazaar.json → x402 Bazaar catalog
• /openapi.yaml → OpenAPI spec with serious workflow tags

Serious workflow tags: token-intel, yield, mev-risk, bridge, risk-scoring, onchain-analytics

• GET /api/token-intel/:address — $0.04
  • Aggregates Dexscreener + BaseScan + GoPlus + GeckoTerminal
  • Returns normalized token metadata, liquidity/volume, security flags
  • Includes composite risk score (0-100), risk verdict (LOW | MEDIUM | HIGH), and confidence score
  • Uses timeout + partial fallback when one or more upstreams fail

• 🎭 Fun — Roasts, pickup lines, fortunes, haikus ($0.10–$0.25)
• 🛠️ Tools — Gas oracle, token lookup, address tools ($0.25–$0.50)
• 📊 Analysis — Market mood, yield finder, risk scores ($0.50–$1.00)
• 🎲 Games — Trivia, dice, 8-ball, achievements ($0.10–$0.25)
• 🔮 Predictions — Moon predictions, vibe checks ($0.15–$0.50)
• 🏗️ Dev — Solidity tips, audit bingo, contract ideas ($0.10–$0.25)
• 🎪 Novelty — Dating profiles, dream interpreter, naming ($0.10–$0.25)
• 💬 Social — GM/GN, bio generators ($0.10–$0.15)

• Network: Base (mainnet)
• Token: USDC
• PayTo: 0x5f5d6FcB315871c26F720dc6fEf17052dD984359

1. Install the Vercel CLI: npm i -g vercel
2. Link the project: vercel link
3. Deploy: vercel --prod

The vercel.json routes all requests to the Express app in api/index.js. No config changes needed.

For local Vercel emulation: npm run vercel-dev

This project includes an MCP server that exposes all endpoints as native AI tools. Any MCP-compatible client (Claude Desktop, Cursor, etc.) can discover and call them with automatic x402 payment handling.

node mcp-server.js

See MCP-README.md for full setup instructions.

• api/index.js — Main Express app (exported for Vercel serverless)
• index.js — Local dev entry point (requires api/index.js)
• vercel.json — Vercel routing and build config

• Rate limiting: 100 requests per IP per 15 minutes (via express-rate-limit)
• Security headers: Applied via helmet

Visit the root URL for the full interactive endpoint directory.