Find, pay for & call APIs in USDC from AI agents - gasless, sub-cent, 0% commission.
Connect Runs on your machine
claude mcp add obol -e OBOL_API_KEY=<OBOL_API_KEY> -e OBOL_AGENT_KEY=<OBOL_AGENT_KEY> -- npx -y @superbigroach/[email protected]{
"mcpServers": {
"obol": {
"command": "npx",
"args": [
"-y",
"@superbigroach/[email protected]"
],
"env": {
"OBOL_API_KEY": "<OBOL_API_KEY>",
"OBOL_AGENT_KEY": "<OBOL_AGENT_KEY>"
}
}
}
}{
"mcpServers": {
"obol": {
"command": "npx",
"args": [
"-y",
"@superbigroach/[email protected]"
],
"env": {
"OBOL_API_KEY": "<OBOL_API_KEY>",
"OBOL_AGENT_KEY": "<OBOL_AGENT_KEY>"
}
}
}
}{
"servers": {
"obol": {
"type": "stdio",
"command": "npx",
"args": [
"-y",
"@superbigroach/[email protected]"
],
"env": {
"OBOL_API_KEY": "<OBOL_API_KEY>",
"OBOL_AGENT_KEY": "<OBOL_AGENT_KEY>"
}
}
}
}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 |
|---|---|
OBOL_API_KEYRequired, secret | Your Obol API key (obl_sk_live_...) from obol-arc.web.app/settings — identifies your account for listing services and metered calls. |
OBOL_AGENT_KEYOptional, secret | 32-byte hex Arc wallet private key that signs gasless x402/EIP-3009 payment authorizations. Needed only for paying (pay_and_call); discovery and listing work without it. |
Details
| Package | @superbigroach/[email protected] (NPM, stdio) |
| First published | 30 Jun 2026 |
| Last updated | 30 Jun 2026 |
| Registry name | io.github.superbigroach/obol |
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