Pay-per-call crypto data for AI agents. USDC on Base via x402. No API key.
Quick Install
Automated & IDE SetupCopy the AI prompt to install this server into Claude Code, Cursor, or another agent — or use 1-click editor setup below.
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Manual Client & Custom JSON ConfigExpand JSON ▾
Client Config & Setup
Choose your client or environment
Target File:
💡 Paste the JSON block into your client's configuration file under mcpServers, then restart the application.
Documentation Overview
boo-x402-mcp
One MCP server giving AI agents pay-per-call access to crypto/web3 ground-truth data across 5 chains: Ethereum, BNB Chain, Base, Solana, and Robinhood Chain (chain_id 4663).
Paid in USDC on Base via x402. No API key. No signup. No subscription. Built-in spend caps.
Why
Agents cannot sign up for API keys. x402 lets your agent pay per call with a signature. This server wraps a fleet of data APIs behind one install, routes each question to the right backend, and enforces a spending limit before the wallet ever signs.
Tools (34 paid + 2 free)
Call x402_list_paid_tools (FREE) first to see everything with live prices.
Safety (use before you buy)
| Tool | Price | Chains |
|---|---|---|
token_rugcheck | $0.01 | eth, bnb, base, solana, rhchain |
token_holders | $0.01 | eth, bnb, base, solana, rhchain |
contract_safety | $0.01 | eth, bnb, base |
wallet_risk | $0.01 | eth, bnb, base, solana |
wallet_sanctions | $0.01 | OFAC screen |
wallet_signal | $0.02 | composite verdict |
solana_bundle_check | $0.015 | solana (sniper/bundle detection) |
Meme tokens
| Tool | Price |
|---|---|
meme_discover | $0.01 |
token_momentum | $0.01 |
meme_signal | $0.02 (composite) |
Token data
| Tool | Price |
|---|---|
token_price | $0.01 |
token_supply | $0.01 |
token_snapshot | $0.015 (price + supply + safety) |
Market & DeFi
| Tool | Price |
|---|---|
fear_greed | $0.005 |
gas_oracle | $0.005 |
ens_resolve | $0.005 |
defi_tvl | $0.01 |
defi_yields | $0.01 |
chain_tvl | $0.01 |
stablecoin_peg | $0.01 |
derivatives_funding | $0.01 |
trade_signal | $0.02 |
Prediction markets
| Tool | Price |
|---|---|
prediction_markets | $0.008 |
prediction_search | $0.005 |
prediction_market | $0.008 |
prediction_history | $0.008 |
Robinhood Chain (new L2, not covered by other providers)
| Tool | Price |
|---|---|
rhchain_health | $0.005 |
rhchain_wallet | $0.01 |
rhchain_wallet_score | $0.01 |
rhchain_token_screener | $0.008 |
rhchain_token_detail | $0.008 |
rhchain_tx | $0.005 |
rhchain_trending | $0.008 |
rhchain_burn | $0.005 |
Free: x402_list_paid_tools, x402_spend_status
Install
Works with Claude Desktop, Claude Code (claude mcp add), Cursor, and any MCP client.
Wallet
You need a wallet holding USDC on Base. No ETH needed for gas: x402 uses EIP-3009, so your wallet only signs, and the facilitator pays gas.
Your private key stays on your machine, in your MCP config. It is never transmitted. Payments are signed locally, per call.
The free tools work with no wallet at all.
Spend caps
x402 wallets are unlimited by default. This server is not:
MAX_USD_PER_CALL(default0.05) - rejects any single payment above this, before signingMAX_USD_TOTAL(default5) - rejects further calls once session spend reaches this
Restart the server to reset the session total.
Data
Public, verifiable sources (Blockscout, RPC, DEX pairs, DefiLlama, GoPlus). Read-only.
NOT investment advice.
License
MIT
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Frequently Asked Questions about Boo X402 MCP
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