Blockchain IQ x402 Crypto Data
io.github.jgmale123/blockchainiq-x402-mcp ยท v0.1.2
Pay-per-call crypto market data over x402 (USDC on Base). Free catalog without a wallet.
Connect Runs on your machine
claude mcp add blockchainiq-x402-mcp -e AGENT_PRIVATE_KEY=<AGENT_PRIVATE_KEY> -e MAX_USDC_PER_CALL=<MAX_USDC_PER_CALL> -e BLOCKCHAINIQ_BASE_URL=<BLOCKCHAINIQ_BASE_URL> -e BLOCKCHAINIQ_NETWORK=<BLOCKCHAINIQ_NETWORK> -- npx -y [email protected]{
"mcpServers": {
"blockchainiq-x402-mcp": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"AGENT_PRIVATE_KEY": "<AGENT_PRIVATE_KEY>",
"MAX_USDC_PER_CALL": "<MAX_USDC_PER_CALL>",
"BLOCKCHAINIQ_BASE_URL": "<BLOCKCHAINIQ_BASE_URL>",
"BLOCKCHAINIQ_NETWORK": "<BLOCKCHAINIQ_NETWORK>"
}
}
}
}{
"mcpServers": {
"blockchainiq-x402-mcp": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"AGENT_PRIVATE_KEY": "<AGENT_PRIVATE_KEY>",
"MAX_USDC_PER_CALL": "<MAX_USDC_PER_CALL>",
"BLOCKCHAINIQ_BASE_URL": "<BLOCKCHAINIQ_BASE_URL>",
"BLOCKCHAINIQ_NETWORK": "<BLOCKCHAINIQ_NETWORK>"
}
}
}
}{
"servers": {
"blockchainiq-x402-mcp": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"AGENT_PRIVATE_KEY": "<AGENT_PRIVATE_KEY>",
"MAX_USDC_PER_CALL": "<MAX_USDC_PER_CALL>",
"BLOCKCHAINIQ_BASE_URL": "<BLOCKCHAINIQ_BASE_URL>",
"BLOCKCHAINIQ_NETWORK": "<BLOCKCHAINIQ_NETWORK>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
AGENT_PRIVATE_KEYOptional, secret | Private key of your own EVM wallet holding USDC on Base, used to pay for paid tools. Optional: without it only the free catalog tool returns data. Use a dedicated low-balance wallet, never a main wallet. It is read locally to sign payments and is not sent anywhere. |
MAX_USDC_PER_CALLOptional | The most, in US dollars, the server will pay for a single call. A request priced above this is refused. Must be a positive number. The default is $2.00, which covers every resource today (the dearest is $0.50) and the $2.00 Analyst pack. |
BLOCKCHAINIQ_BASE_URLOptional | Base URL of the API. Only change this to test against another deployment. |
BLOCKCHAINIQ_NETWORKOptional | The one network the wallet will pay on: base (Base mainnet) or base-sepolia (testnet, only for a test deployment). Payment requests on any other network are refused. |
Details
| Package | [email protected] (NPM, stdio) |
| First published | 27 Oct 2026 |
| Last updated | 27 Oct 2026 |
| Registry name | io.github.jgmale123/blockchainiq-x402-mcp |
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