Discover / x402.klimalabs.com
x402.klimalabs.com
Entry point to the x402 Carbon Retirement API on Base. Returns every endpoint you need plus a live snapshot of the top 3 carbon classes and marketplace listings by liquidity. Discover, quote and certificate are free. Retiring is paid: each retirement costs the credit price plus a fee, sent from your own wallet (prepare/retire) or relayed from a signed USDC authorization (prepare-auth + POST actions/retire). Full spec at /openapi.json.
x402.klimalabs.com is listed as payable by AI agents over X402 on base in USDC. It answered a valid payment challenge when we last probed it at Sat, 26 Sep 2026 09:26:59 GMT.
https://x402.klimalabs.com/api/catalog
x402-list, x402-bazaar
Probe history
last 10 probes| When | Result | HTTP | Method | Latency |
|---|---|---|---|---|
| Sat, 26 Sep 2026 09:26:59 | challenge | 402 | http-402 | 129ms |
| Fri, 25 Sep 2026 09:29:48 | challenge | 402 | http-402 | 225ms |
| Thu, 24 Sep 2026 12:37:35 | challenge | 402 | http-402 | 70ms |
| Wed, 23 Sep 2026 15:29:08 | challenge | 402 | http-402 | 140ms |
| Tue, 22 Sep 2026 15:27:49 | no challenge | 404 | none | 117ms |
| Mon, 21 Sep 2026 17:01:45 | no challenge | 404 | none | 99ms |
| Sun, 20 Sep 2026 21:26:04 | challenge | 402 | http-402 | 126ms |
| Sun, 20 Sep 2026 03:28:12 | challenge | 402 | http-402 | 144ms |
| Sat, 19 Sep 2026 03:27:21 | challenge | 402 | http-402 | 178ms |
| Wed, 16 Sep 2026 17:02:19 | challenge | 402 | http-402 | 111ms |
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