Lightning has 1,185 L402 services. Most agents have no idea they exist or how to find the reliable ones.

L402 is Lightning's paid API protocol. An agent sends sats, gets data back. No accounts, no OAuth, no subscriptions. Just a payment and a response.

There are 1,185 L402 services indexed right now. Financial data, AI inference, real-time feeds, utilities. Most pay-per-call in the $0.001 to $0.05 range.

The problem: there is no good way to find them, and quality varies wildly. We built a cross-protocol index covering L402, x402 (USDC on Base), and MPP. We test all of them weekly and grade them A through F.

Current L402 grade breakdown: most services land at C or D. Two legitimate reasons: the ecosystem is early and some services accept payment but return empty responses. We flag those and refund through our proxy automatically.

The leaderboard is public and sortable by protocol, grade, price, and latency: https://api.ideafactorylab.org/leaderboard

If you are building a Lightning-enabled agent or running an L402 service and want to see where you rank, it is all there. Free to search the full index at /discover.