60+ pay-per-call tools for agents (data, dates, QR, crypto, web), paid in USDC via x402.
Connect Runs on your machine
claude mcp add fastx402 -e FASTX402_EVM_PRIVATE_KEY=<FASTX402_EVM_PRIVATE_KEY> -e FASTX402_SOLANA_PRIVATE_KEY=<FASTX402_SOLANA_PRIVATE_KEY> -e FASTX402_MAX_USD_PER_CALL=<FASTX402_MAX_USD_PER_CALL> -e FASTX402_MAX_USD_PER_DAY=<FASTX402_MAX_USD_PER_DAY> -- npx -y [email protected]{
"mcpServers": {
"fastx402": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"FASTX402_EVM_PRIVATE_KEY": "<FASTX402_EVM_PRIVATE_KEY>",
"FASTX402_SOLANA_PRIVATE_KEY": "<FASTX402_SOLANA_PRIVATE_KEY>",
"FASTX402_MAX_USD_PER_CALL": "<FASTX402_MAX_USD_PER_CALL>",
"FASTX402_MAX_USD_PER_DAY": "<FASTX402_MAX_USD_PER_DAY>"
}
}
}
}{
"mcpServers": {
"fastx402": {
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"FASTX402_EVM_PRIVATE_KEY": "<FASTX402_EVM_PRIVATE_KEY>",
"FASTX402_SOLANA_PRIVATE_KEY": "<FASTX402_SOLANA_PRIVATE_KEY>",
"FASTX402_MAX_USD_PER_CALL": "<FASTX402_MAX_USD_PER_CALL>",
"FASTX402_MAX_USD_PER_DAY": "<FASTX402_MAX_USD_PER_DAY>"
}
}
}
}{
"servers": {
"fastx402": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"[email protected]"
],
"env": {
"FASTX402_EVM_PRIVATE_KEY": "<FASTX402_EVM_PRIVATE_KEY>",
"FASTX402_SOLANA_PRIVATE_KEY": "<FASTX402_SOLANA_PRIVATE_KEY>",
"FASTX402_MAX_USD_PER_CALL": "<FASTX402_MAX_USD_PER_CALL>",
"FASTX402_MAX_USD_PER_DAY": "<FASTX402_MAX_USD_PER_DAY>"
}
}
}
}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 |
|---|---|
FASTX402_EVM_PRIVATE_KEYOptional, secret | Dedicated wallet key that pays in USDC on Base (0x + 64 hex) |
FASTX402_SOLANA_PRIVATE_KEYOptional, secret | Dedicated wallet key that pays in USDC on Solana (base58) |
FASTX402_MAX_USD_PER_CALLOptional | Maximum USD per single payment (default 0.05) |
FASTX402_MAX_USD_PER_DAYOptional | Maximum USD spent per day (default 1) |
Details
| Package | [email protected] (NPM, stdio) |
| First published | 17 Oct 2026 |
| Last updated | 17 Oct 2026 |
| Registry name | io.github.tusk80/fastx402 |
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