Give your agent a budget instead of a hundred vendor accounts. One config line and it can call any API in the hub, paying per request in sats — no signups, no API keys, no card on file. Settlement runs on the open L402 / HTTP 402 standard.
The whole subscribe-and-manage-API-keys model assumes a human at a dashboard. An autonomous agent needs to discover a tool, pay for it, and use it — at runtime, programmatically, within a budget you set.
The paid token is the credential. Nothing to provision or rotate.
Spend a few sats per request, metered exactly to usage.
A single L402 client reaches every API in the hub.
The flow is three steps and it’s the same for every listing.
The API answers HTTP 402 Payment Required with a Lightning invoice and a token challenge.
Your L402 client settles the invoice from its budget — a few sats, in under a second.
The paid token unlocks the response. No account, no API key, no human in the loop.
Every hub listing exposes an MCP tool definition, so agents in Cursor, Claude Desktop, or your own orchestration can discover and call paid tools natively. Are you a provider instead? Monetize your API and reach these agents.
14-day free trial. Usage-based billing after that, paid monthly via Lightning.
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Browse the API Hub and try a paid request with your Lightning wallet. No signup needed to explore.