ScriptMasterLabs.com · x402 Directory
x402 Carbon Retirement API
Resource: https://x402.klimalabs.com/api/catalog · Directory page generated 2026-11-05T21:40:14.133Z from live sources.
The facts, as last reported 2026-11-05T21:33:53.714Z: this resource answers x402 payment challenges at 0.001 USDC on Base (exact), pay to 0xf624f9Fe1D3165c5Ca32c7Fbdbf82f4a5b1D2d0e. It is reported by Coinbase CDP and its directory state is live.
What it does
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
Payment options
| Network | Scheme | Asset | Amount | Pay to |
|---|---|---|---|---|
| Baseeip155:8453 | exact | USDC0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 | 0.0011000 atomic | 0xf624f9Fe1D3165c5Ca32c7Fbdbf82f4a5b1D2d0e |
Verification — the enrichment record
| Verification state | facilitator-reported |
|---|---|
| Verified / reported at | 2026-11-05T21:33:53.714Z |
| Settlement recency | listing last updated 2026-11-05T19:30:51.678Z at its source |
| Freshness | live — last reported 2026-11-05T21:33:53.714Z, listing last updated at source 2026-11-05T19:30:51.678Z |
| Reporting facilitator | Coinbase CDP |
| Sources | cdp |
| Tags | carbon, climate, base |
Call it
An unpaid call returns the live 402 challenge — that challenge, not this page, is the price quote:
curl -i "https://x402.klimalabs.com/api/catalog"
Pay it with any x402 client on Base. Networks: Base