POSTorigin reachablediscovery only

Carbon CashmerePOST /v1/backtest · x402 API by api.carbon-cashmere.de

Carbon Cashmere x402 endpoint: /v1/backtest. Category: crypto/data. AI-agent-friendly USDC micropayment API for crypto trading intelligence, on-chain analytics, and ML signals. Informational research data only, not investment advice. MiCAR Art. 92 + EU AI Act Art. 50 disclosed.

https://api.carbon-cashmere.de/v1/backtest

What does this x402 API do?

Carbon Cashmere. This is an x402-gated POST API resource from api.carbon-cashmere.de. TOLL·402 did not invoke this route automatically because doing so was not considered safe. The listing records $1 USD-denominated per request on an unspecified network. No settled paid call has been verified.

Published price
$1 USD-denominated per request
Networks
Not recorded
Latest evidence
TOLL·402 did not invoke this route automatically because doing so was not considered safe
Resource ID
31dbaebb3e33f9f62deb300f
USE THIS RESOURCE

Start with a quote-only recipe. Payment signing stays in your project.

CODE
AI CODING TOOLS
quote-check.ts
const response = await fetch("https://api.carbon-cashmere.de/v1/backtest", {
  method: "POST",
  headers: { "content-type": "application/json" },
  body: JSON.stringify({
  "replace": "with provider-approved input"
}),
});

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.

Review the provider input schema before running this non-read-only method. No payment code is included.

STATUS HISTORY

  1. Exact route checked

    not safely testable · potentially-mutating-method:POST

  2. Origin reachable

    OPTIONS https://api.carbon-cashmere.de/ returned 405.

  3. Observed in 402-index

    Discovered through self-registered.

  4. Registry record checked

    Registry health: degraded.

What evidence supports this listing?

402-indexobserved 2026-08-11 · open source record ↗
origin checkOPTIONS https://api.carbon-cashmere.de/ → 405 on 2026-08-15
route quotenot invoked automatically · potentially-mutating-method:POST · 2026-08-15

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 $1 USD-denominated per request. Raw protocol requirements remain visible below for implementation and audit use.

The registry did not expose full payment options for this record.
api.carbon-cashmere.de POST /v1/backtest · 31dbae x402 API · TOLL·402