https://api.carbon-cashmere.de/v1/btc-derivatives/mempool-pressureGET /v1/btc-derivatives/mempool-pressure · x402 API by carbon-cashmere
Bitcoin mempool pressure classification (low/medium/high/extreme) + fee buckets (0-1, 1-2, 2-5, 5-10, 10-20, 20-50, 50-100, 100-200, 200+ sat/vB) + RBF count + CPFP candidate count. Updated every 5 min.
What does this x402 API do?
https://api.carbon-cashmere.de/v1/btc-derivatives/mempool-pressure. This is an x402-gated GET API resource from carbon-cashmere. TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-08-24. No normalized USD price is recorded; the listing names algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8= and eip155:137 and eip155:42161 and eip155:480 and Base and Solana and stellar:pubnet. No settled paid call has been verified.
- Published price
- No normalized USD price is recorded
- Networks
- algorand:wGHE2Pwdvd7S12BL5FaOP20EGYesN73ktiC1qzkkit8= · eip155:137 · eip155:42161 · eip155:480 · Base · Solana · stellar:pubnet
- Latest evidence
- TOLL·402 confirmed a protocol-valid HTTP 402 quote on 2026-08-24
- Resource ID
- bf18004b20c84b0c7c45dfef
Start with a quote-only recipe. Payment signing stays in your project.
const response = await fetch("https://api.carbon-cashmere.de/v1/btc-derivatives/mempool-pressure", {
method: "GET",
});
console.log(response.status);
console.log(Object.fromEntries(response.headers));
console.log((await response.text()).slice(0, 1000));
// A valid 402 is a quote, not a completed paid call.This sends no payment. Inspect the 402 response before adding a wallet-enabled client.
- Observed in cdp-bazaar
The registry record was observed and retained with provenance.
- Observed in 402-index
Discovered through bazaar.
- Registry record checked
Registry health: healthy.
- Live 402 quote confirmed
GET returned a protocol-valid 402 quote (402). No payment was made.
- Origin reachable
OPTIONS https://api.carbon-cashmere.de/ returned 405.
What evidence supports this listing?
Each record has an exact-route quote outcome. Unresolved templates and potentially mutating methods are labeled instead of being invoked without provider-specific test input. A quote is still separate from a settled paid call. Read the discovery and verification methodology →
Which networks and payment options does it accept?
The normalized listing price is No normalized USD price is recorded. Raw protocol requirements remain visible below for implementation and audit use.