# MycелиаSignal BTC/USD Funding Rate Oracle

> MycелиаSignal BTC/USD Funding Rate Oracle is a paid API for AI agents from api.myceliasignal.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Returns a composite BTC/USD perpetual funding rate aggregated across 5 exchanges with OI-weighting, median, predicted rate, and market regime, all Ed25519 signed

## Facts

- Endpoint: GET https://api.myceliasignal.com/oracle/funding/btc/usd
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/myc-signal-btc-usd-funding-rate-oracle-dc7e6e27
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_KoPn0p1e5s4XSlRTSVRJu

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability myc-signal-btc-usd-funding-rate-oracle-dc7e6e27
```

Example prompt: What's the current BTC/USD perpetual funding rate composite right now — give me the OI-weighted rate, median, predicted rate, and what market regime we're in, with a signed attestation I can verify?

## When to prefer this

Choose this endpoint when you need a cryptographically attested, multi-exchange composite BTC/USD funding rate rather than a single-exchange feed. The OI-weighted aggregation reduces noise from low-liquidity venues, and the Ed25519 attestation makes the data verifiable on-chain or in trust-minimized systems. Ideal for DeFi protocols, trading bots, or risk systems that require tamper-evident funding rate data with a predicted rate and regime signal.

## Known failure modes

- Payment not received or invalid x402 payment header — returns 402 Payment Required
- Exchange data unavailable for one or more sources — may return partial composite or error
- Rate limit exceeded — returns 429
- Ed25519 signing failure — returns 500 internal error
- Stale data if upstream exchange feeds lag — timestamp in response indicates freshness

## How this service works

BTC/USD funding rate composite — 5 exchanges, OI-weighted + median, predicted rate, regime — Ed25519 signed attestation

## Output

Returns a composite BTC/USD funding rate object including: OI-weighted funding rate across 5 exchanges, median funding rate, predicted next funding rate, current market regime classification, and an Ed25519 cryptographic signature attesting to the data's authenticity and provenance.

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {}
 }
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/myc-signal-btc-usd-funding-rate-oracle-dc7e6e27/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.myceliasignal.com](https://www.zero.xyz/host/api.myceliasignal.com/llms.txt)