X402 Money Reactor MCP Server

x402-money-reactor

Money Reactor — a pay-per-call API for AI agents and bots. No signup, no API keys, no rate-limit dance: the payment is the auth. Every call is settled on-chain in USDC on Base via the x402 protocol (HTTP 402 + EIP-3009 transferWithAuthorization).

🔗 Live service: https://money-reactor.makar52nn2016.workers.dev

Machine-readable discovery (point your agent straight at these):

Install

pip install x402-money-reactor    # Python SDK
npm install x402-money-reactor    # Node.js SDK

Source lives in sdk/python/ and sdk/node/.

The verdict ladder — the core premium track

Three tiers of token-safety intelligence for trading agents, wallets and DeFi bots. One settlement mechanics, three confidence levels — pay only for the confidence you need:

from x402_money_reactor import token_verdict_challenge, dossier_challenge

print(token_verdict_challenge("0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913"))
# -> {"accepts": [{"scheme": "exact", "network": "eip155:8453",
#     "maxAmountRequired": "10000", ...}]}

Full catalog (17 paid endpoints, $0.001 – $5.00)

How a paid call works

1. Call any paid endpoint without a key → you get HTTP 402 with an x402 accepts payload.
2. Your x402 client (or EIP-3009 wallet) signs a USDC transferWithAuthorization on Base.
3. Repeat the request with the X-PAYMENT header → 200 OK with the data.

from x402_money_reactor import call_free, catalog, paid_endpoints

call_free("/api/status")   # public payment ledger — every settlement visible
catalog()                  # live endpoint list from /openapi.json
paid_endpoints()           # static price table

const { challenge, catalog, paidEndpoints } = require("x402-money-reactor");
console.log(challenge("/api/token-verdict?address=0x…"));

Full auto-payment with the official x402 SDK:

# pip install x402
from x402 import x402Client  # on 402 it signs EIP-3009 USDC on Base and retries automatically

Or drive the settlement yourself with any Base signer — the 402 payload is a standard EIP-3009 transferWithAuthorization to the payTo address (USDC, 6 decimals).

MCP

The service speaks MCP natively: point any MCP client at https://money-reactor.makar52nn2016.workers.dev/mcp.

Public ledger — verify everything

No key needed: GET https://money-reactor.makar52nn2016.workers.dev/api/status returns paymentsTotal and recentPayments with on-chain tx hashes. Every payment that ever settled is public.

Mirrors & articles

• Agent card + docs mirror: https://makar-reactor.srht.site/
• Codeberg mirror: https://makar52nn2016.codeberg.page/
• Articles: Pay-per-call API for AI agents (EN) · verdict→dossier research ladder (EN) · RU-версия

Shareable verdict cards (free)

Every token verdict ships with a branded SVG card — a free, self-contained link you can drop in chats, issues, dashboards or agent transcripts:

https://money-reactor.makar52nn2016.workers.dev/api/verdict-card?address=0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

The card shows the grade (GREEN / MID / YELLOW / RED), score, headline metrics (liquidity, pair age, 24h move) and a one-line take; full reasons and metrics stay in the paid /api/token-verdict call ($0.01 USDC via x402). The paid response includes cardUrl so agents can share results natively.

New: tutorial — x402 in 5 minutes: make your first USDC pay-per-call API request (curl + Node.js, live on Base).

License

MIT