x402 Carbon Retirement API

What the provider says

Quoted from x402 Bazaar · source record · read 2026-10-26

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Facts and where they come from

Price

0.001 USDC per call Provider claim

Recorded value: 0.001 USDC per call.

Unit

per call

Protocol

x402, REST · transport: HTTP Provider claim

Auth

x402

Endpoint

https://x402.klimalabs.com/api/catalog

Source

x402 Bazaar (Coinbase CDP) · Public discovery API (provider-published records)

Last checked

Not checked by us yet — the data is as the source published it

First seen

2026-10-24

Usage

87 calls · 5 unique payers in the 30 days before 2026-10-25. Measured by the x402 Bazaar, not by us and not by the provider.

Payments and earnings

No settled payment on record. Earnings for this service are unknown — not zero. The source counts 87 calls in 30 days, which at the published price is roughly $0.09 of activity. Activity is not revenue; no charge has been reconciled for it.

Payment rails

A payment rail is where the provider asks to be paid. It is not proof that anything was paid through it. See evidence levels.

Input and output, as published

Request

{
    "method": "GET",
    "queryParams": [],
    "type": "http"
}

Response

{
    "example": {
        "asOf": "2026-09-15T00:00:00.000Z",
        "catalogNote": "Prices are USDC per tonne before the fee. Class prices are indicative live quotes; listing prices are the seller's firm ask. To retire: GET quote, then either GET prepare/retire and send the transactions from your own wallet, or GET prepare-auth, sign its typedData and POST actions/retire. Either way the retirement costs the credit price plus a fee. GET discover returns the full catalog for free.",
        "classes": [
            {
                "carbonClassId": "0x0008f35758a4318942ecb5d5414116ce7b1ede2d",
                "category": "Wind Energy",
                "country": "India",
                "creditCount": 6,
                "liquidityTonnes": "228436",
                "name": "Wind Energy - Small Scale",
                "priceBasis": "indicative",
                "priceUsdcPerTonne": "40352",
                "priceUsdcPerTonneFormatted": "0.040352"
            },
            {
                "carbonClassId": "0x1ff9bd464155d32fd2f9d302008d38544c0ae371",
                "category": "Solar Energy",
                "country": "India",
                "creditCount": 13,
                "liquidityTonnes": "76646",
                "name": "Solar PV - Small Scale",
                "priceBasis": "indicative",
                "priceUsdcPerTonne": "16412",
                "priceUsdcPerTonneFormatted": "0.016412"
            },
            {
                "carbonClassId": "0xf4699531e0a5f6e9351a36de3753deaad329bf45",
                "category": "City Forest Credits",
                "country": "United States",
                "creditCount": 3,
                "liquidityTonnes": "6919",
                "name": "Regen Network - City Forest Credits",
                "priceBasis": "indicative",
                "priceUsdcPerTonne": "4449127",
                "priceUsdcPerTonneFormatted": "4.449127"
            }
        ],
        "endpoints": {
            "actionsRetire": {
                "method": "POST",
                "url": "https://x402.klimalabs.com/api/actions/retire"
            },
            "certificate": {
                "method": "GET",
                "url": "https://x402.klimalabs.com/api/certificate"
            },
            "discover": {
                "method": "GET",
                "url": "https://x402.klimalabs.com/api/discover"
            },
            "manifest": {
                "method": "GET",
                "url": "https://x402.klimalabs.com/.well-known/x402.json"
            },
            "note": "Start here: every carbon retirement goes through these endpoints. discover, quote and certificate are free. Retiring is paid: each retirement costs the credit price plus a fee (and executor gas when relayed through actions/retire), sent from your own wallet via prepare/retire or authorized by signature via prepare-auth. Full request and response schemas: https://x402.klimalabs.com/openapi.json",
            "openapi": {
                "method": "GET",
                "url": "https://x402.klimalabs.com/openapi.json"
            },
            "prepareAuth": {
                "method": "GET",
                "url": "https://x402.klimalabs.com/api/prepare-auth"
            },
            "prepareRetire": {
                "method": "GET",
                "url": "https://x402.klimalabs.com/api/prepare/retire"
            },
            "quote": {
                "method": "GET",
                "url": "https://x402.klimalabs.com/api/quote"
            }
        },
        "listings": [
            {
                "category": "Renewable Energy",
                "country": "Brazil",
                "creditId": "VCS-896-2011",
                "expiresAt": "2031-08-16T20:51:26.000Z",
                "leftToSellTonnes": "367811.2",
                "listingId": "0x06ae1ad6472fe406bfc6ec9d20f0060a90ae4911ba482f93fa4a6dceab5e40ca",
                "minFillTonnes": "0.001",
                "priceBasis": "firm",
                "priceUsdcPerTonne": "410000",
                "priceUsdcPerTonneFormatted": "0.41",
                "projectName": "Foz Do Chapec\u00f3 Project",
                "registry": "VCS",
                "vintage": 2011
            },
            {
                "category": "Energy Efficiency",
                "country": "South Korea",
                "creditId": "VCS-1146-2015",
                "expiresAt": "2031-09-03T13:48:30.000Z",
                "leftToSellTonnes": "298147",
                "listingId": "0xea39b91a16003213b195a75476ea8277df1754309074437c9be72ae714ed1100",
                "minFillTonnes": "0.001",
                "priceBasis": "firm",
                "priceUsdcPerTonne": "730000",
                "priceUsdcPerTonneFormatted": "0.73",
                "projectName": "The Hyundai Waste Energy Recovery Co-Generation Project Phase II",
                "registry": "VCS",
                "vintage": 2015
            },
            {
                "category": "Renewable Energy",
                "country": "China",
                "creditId": "VCS-850-2016",
                "expiresAt": "2031-08-16T14:22:45.000Z",
                "leftToSellTonnes": "74959",
                "listingId": "0xd33885ac05bd66888963bab0b6b32248bcdc0501ce8152bafc854059b86d12e3",
                "minFillTonnes": "0.001",
                "priceBasis": "firm",
                "priceUsdcPerTonne": "520000",
                "priceUsdcPerTonneFormatted": "0.52",
                "projectName": "Inner Mongolia Jingneng Saihan Wind Farm Phase I Project",
                "registry": "VCS",
                "vintage": 2016
            }
        ]
    },
    "type": "json"
}

Examples are the provider's own, not a call we made.

Provenance

One row per statement. “Verified” means we checked it ourselves and the finding is quoted. “Provider claim” means we read it in the provider's own record. “Not found” is a statement about our search, not proof of absence.

Endpoint checks

We have not called this endpoint yet. Until we do, everything above is what the source published — no more.

Tags

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