# MyceliaSignal ETH/EUR Spot Price Oracle

> MyceliaSignal ETH/EUR 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 ETH/EUR spot price as a cryptographically signed Ed25519 attestation

## Facts

- Endpoint: GET https://api.myceliasignal.com/oracle/price/eth/eur
- 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-3dd2a12e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yVZaNe95ndjvnFFkjLUeJ

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-3dd2a12e
```

Example prompt: What's the current ETH/EUR spot price? I need a cryptographically signed attestation I can verify independently.

## When to prefer this

Use this endpoint when you need a cryptographically signed, verifiable ETH/EUR price attestation — particularly in smart contract, DeFi, or audit contexts where you need to prove the price came from a trusted source. Prefer over unsigned price feeds when tamper-proof provenance matters. Choose over ETH/USD endpoints specifically when EUR denomination is required.

## Known failure modes

- Payment not included or invalid — 402 Payment Required
- Price data temporarily unavailable from upstream source — 503 Service Unavailable
- Invalid or expired payment token — 402 Payment Required
- Network timeout fetching latest price — 504 Gateway Timeout

## How this service works

Real-time Ethereum price in EUR, multi-exchange aggregated oracle for European markets — Ed25519 signed attestation

## Output

Returns the current Ethereum spot price denominated in EUR, bundled with an Ed25519 cryptographic signature attesting to the data's authenticity and integrity, allowing clients to verify the price data was produced by MyceliaSignal's oracle 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-3dd2a12e/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)