x402.klimalabs.com

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

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.

64
reliability

Reliability & health

Uptime and response time from our own unpaid probes, plus the reliability score built from them.

7 days 30 days

Uptime

95.0% avg
0% 50% 100% Sep 16Sep 22Sep 29Oct 5

Response time

p50 107ms · p95 214ms
0ms 200ms 400ms Sep 16Sep 22Sep 29Oct 5
Data table
Reliability history per time bucket over the last 30 days (daily).
Bucket Uptime Probes Response time
9/16/2026, 12:00:00 AM 0% 1 —
9/17/2026, 12:00:00 AM 100% 2 302ms
9/18/2026, 12:00:00 AM 100% 13 134ms
9/19/2026, 12:00:00 AM 100% 13 105ms
9/20/2026, 12:00:00 AM 100% 12 98ms
9/21/2026, 12:00:00 AM 100% 12 130ms
9/22/2026, 12:00:00 AM 100% 13 99ms
9/23/2026, 12:00:00 AM 100% 13 102ms
9/24/2026, 12:00:00 AM 100% 13 95ms
9/25/2026, 12:00:00 AM 100% 13 112ms
9/26/2026, 12:00:00 AM 100% 14 100ms
9/27/2026, 12:00:00 AM 100% 13 116ms
9/28/2026, 12:00:00 AM 100% 13 107ms
9/29/2026, 12:00:00 AM 100% 12 149ms
9/30/2026, 12:00:00 AM 100% 12 120ms
10/1/2026, 12:00:00 AM 100% 12 102ms
10/2/2026, 12:00:00 AM 100% 12 110ms
10/3/2026, 12:00:00 AM 100% 13 114ms
10/4/2026, 12:00:00 AM 100% 10 102ms
10/5/2026, 12:00:00 AM 100% 7 98ms
64
Composite reliability — the weighted average of the dimensions below, on a 0–100 scale.
Availability
100

How often it was reachable when we probed it (weight 35%).

Latency
100

How quickly it answers when it is up — fast scores high (weight 20%).

Security
100

Whether it serves over working TLS / https (weight 15%).

Transparency
61

Whether the operator disclosed what it does — description, schema, identity (weight 15%).

Activity
15

Observed on-chain payments to this endpoint's wallet — transactions, volume, and distinct paying wallets over the last month (weight 15%; not yet measured when we have not seen its wallet settle).

Confidence 100% — how much probe evidence backs this score. A thin history is flagged, not hidden.

See the scoring methodology for exactly how each number is computed.

Payment

Currencies
USDC
Networks
base
Facilitator
unknown
SDK
unknown

Operator

Company
inferred — unknown
Jurisdiction
—
Registrar
Cloudflare, Inc.
Domain registered
2022-12-09
Hosting network
VERCEL-09
Hosting country
—

Operator context is derived from public RDAP/TLS records and unverified. Company and country are only available for endpoints that publish them (an OV/EV TLS certificate or a non-redacted domain record); most endpoints are CDN-fronted and disclose neither.

On-chain activity (base)

31
payments (30d)
0.03
USD volume (30d)
7
paying wallets (30d)

Payments per day

last payment 10/5/2026
0 3 5 Sep 16Sep 25Oct 1Oct 5
Data table
Settled payments per day.
Day Payments Volume (USD) Paying wallets
9/16/2026 1 0 1
9/17/2026 2 0 2
9/19/2026 1 0 1
9/24/2026 1 0 1
9/25/2026 2 0 2
9/26/2026 2 0 2
9/28/2026 1 0 1
9/29/2026 3 0 1
9/30/2026 3 0 1
10/1/2026 3 0 1
10/2/2026 4 0 2
10/3/2026 3 0 1
10/4/2026 3 0 1
10/5/2026 2 0 1

Only payments settled on chains and facilitators we index.

Response schema 
{
  "$ref": "#/components/schemas/CatalogResponse"
}