# MyceliaSignal BTC/JPY Spot Price Oracle

> MyceliaSignal BTC/JPY Spot Price Oracle is a paid API for AI agents from api.myceliasignal.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Returns the current Bitcoin to Japanese Yen spot price as a cryptographically signed Ed25519 attestation

## Facts

- Endpoint: GET https://api.myceliasignal.com/oracle/price/btc/jpy
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-myceliasignal-com-d75514a9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fclsetfg6Y3UU_3q9_DLR

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 api-myceliasignal-com-d75514a9
```

Example prompt: What's the current Bitcoin price in Japanese Yen? I need a cryptographically signed attestation I can verify.

## When to prefer this

Choose this endpoint when you need a cryptographically verifiable, tamper-proof BTC/JPY spot price — particularly for smart contracts, on-chain applications, or any system where price data integrity must be independently verified via Ed25519 signature. Prefer this over generic price APIs when auditability and non-repudiation of the price quote are required.

## Known failure modes

- Price feed temporarily unavailable — upstream data source outage
- Payment not received or invalid x402 payment header — 402 Payment Required
- Rate limit exceeded — too many requests
- Invalid or expired payment — 402 or 403 response
- Signature generation failure — internal oracle error

## How this service works

Real-time Bitcoin price in JPY, multi-exchange aggregated oracle for Japanese markets — Ed25519 signed attestation

## Output

Returns the current BTC/JPY spot price along with an Ed25519 digital signature attesting to the authenticity and integrity of the price data, including a timestamp and signature payload that can be verified against the oracle's public key.

## 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/api-myceliasignal-com-d75514a9/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)