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Carbon & Cashmere Oracle Consensus 3-Way Price Feed (BTC)
x402
Carbon & Cashmere Oracle Consensus 3-Way Price Feed (BTC) is a paid API for AI agents from api.carbon-cashmere.de, paid per call via x402, $0.05/call, status down (last checked 2026-09-14).
Returns a 3-source consensus price for BTC from DIA, Pyth, and CoinGecko, including mean/median, pairwise spreads, and outlier detection.
Price / call$0.05
Success—
StatusDown
How this service works
Professional crypto market intelligence. Real-time prices, signals, and market scoring.
Output
A JSON object containing per-source price quotes (with timestamps and confidence where available), a consensus block with mean USD, median USD, max spread pct, and the identified outlier source with its deviation percentage and absolute USD deviation, plus a pairwise spread array comparing every pair of sources.
Example use cases
Validate BTC price before DeFi trade
“Before I execute this large BTC trade on-chain, check the multi-oracle consensus price and let me know if any single feed is deviating significantly from the others — I don't want to get burned by a bad price source.”
Monitor oracle divergence for risk checks
“Set up a check on the current BTC price feeds from DIA, Pyth, and CoinGecko — alert me if the spread between any two oracles goes above 0.5%, and tell me which one looks like the outlier.”
Audit crypto price data integrity
“I need to verify the quality of our BTC price data right now — pull the cross-validated consensus from all three oracles and show me the mean, median, pairwise spreads, and whether any source is way off from the others.”
Technical details
Endpoint
GEThttps://api.carbon-cashmere.de/v1/oracle-consensus-3way/BTCWhen to prefer
Use this endpoint when you need a cross-validated, multi-oracle BTC price with outlier detection and spread analysis — especially for DeFi applications, risk checks, or any scenario where trusting a single price feed is insufficient. Prefer over single-source feeds when data integrity and oracle consensus quality matter.
Side effects
- Coin symbol not supported — 404 or empty response
- One or more upstream oracles (DIA, Pyth, CoinGecko) may return stale data — timestamps may diverge significantly
- Payment failure via x402 — 402 response if USDC payment not attached
- Network timeout if any oracle source is slow to respond
- Malformed path parameter returns 400 or unexpected error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| properties | string |
Output
Schema · Response
{
"type": "json",
"example": {
"coin": "BTC",
"sources": [
{
"ts": "2026-05-09T21:31:56Z",
"name": "DIA",
"price": 80790.02
},
{
"ts": "2026-05-09T21:25:03Z",
"name": "Pyth",
"price": 80785.39,
"confidence": 19.22
},
{
"ts": "2026-05-09T21:25:00Z",
"name": "CoinGecko",
"price": 80812
}
],
"consensus": {
"outlier": {
"name": "CoinGecko",
"deviation_pct": 0.027,
"deviation_abs_usd": 21.98
},
"mean_usd": 80795.8,
"median_usd": 80790.02,
"max_spread_pct": 0.033
},
"pairwise_spreads": [
{
"a": "DIA",
"b": "Pyth",
"spread_pct": 0.0057
},
{
"a": "DIA",
"b": "CoinGecko",
"spread_pct": -0.0272
},
{
"a": "Pyth",
"b": "CoinGecko",
"spread_pct": -0.0329
}
]
}
}Tags
x402
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