Pay-per-call crypto data for AI agents. USDC on Base via x402. No API key.
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
{
"mcpServers": {
"boo-x402": {
"command": "npx",
"args": ["-y", "boo-x402-mcp"],
"env": {
"WALLET_PRIVATE_KEY": "0x...",
"MAX_USD_PER_CALL": "0.05",
"MAX_USD_TOTAL": "5"
}
}
}
}
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
Source-derived launch command. Check the maintainer’s required arguments and credentials before running:
npx -y boo-x402-mcpMerge this template into ~/Library/Application Support/Claude/claude_desktop_config.json. Keep existing servers. Add any arguments, credentials, and permissions required by the maintainer; this template has not been install-tested.
{
"mcpServers": {
"io-github-lucle87-boo-x402-mcp": {
"command": "npx",
"args": [
"-y",
"boo-x402-mcp"
]
}
}
}Restart Claude Desktop completely for changes to take effect. Confirm the server appears connected in the client’s tool list, then try a read-only example from its documentation.
Claude Desktop setup referenceboo-x402-mcpnpmio.github.lucle87/boo-x402-mcp works with any MCP-compatible client. Copy the config snippet from the Configuration section above and add it to the file shown for your client, then restart the application.
~/Library/Application Support/Claude/claude_desktop_config.jsonRestart Claude Desktop completely for changes to take effect.~/.cursor/mcp.jsonRestart Cursor for changes to take effect..vscode/mcp.jsonReload VS Code window for changes to take effect.~/.codeium/windsurf/mcp_config.jsonRestart Windsurf for changes to take effect..mcp.jsonSave at the project root, then start Claude Code in that project and review the MCP server approval prompt. Keep real credentials out of shared files.