The full upstream README, mirrored here for reference. Install config, tool schemas, adoption signals, and an original overview live on the Boo X402 MCP listing page.
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.
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.
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
Works with Claude Desktop, Claude Code (claude mcp add), Cursor, and any MCP client.
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.
x402 wallets are unlimited by default. This server is not:
MAX_USD_PER_CALL (default 0.05) - rejects any single payment above this, before signingMAX_USD_TOTAL (default 5) - rejects further calls once session spend reaches thisRestart the server to reset the session total.
Public, verifiable sources (Blockscout, RPC, DEX pairs, DefiLlama, GoPlus). Read-only.
NOT investment advice.
MIT