# Myceliasignal ETH Options Instrument Discovery Oracle

> Myceliasignal ETH Options Instrument Discovery Oracle is a paid API for AI agents from api.myceliasignal.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-13).

Discovers and lists ETH options instruments across 3 exchanges with Ed25519 signed attestation

## Facts

- Endpoint: GET https://api.myceliasignal.com/oracle/instruments/eth/options
- Price: $0.03/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-88d9e6e7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Gxp_7zro-y-1p073_ilqB

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-88d9e6e7
```

Example prompt: Can you pull up all the ETH options instruments available right now across the three exchanges covered by Myceliasignal, with the signed attestation so I can verify the data?

## When to prefer this

Use this endpoint when you need a multi-exchange view of available ETH options instruments with cryptographic attestation for trust and verifiability. Prefer this over single-exchange APIs when cross-exchange instrument discovery is needed, or when downstream systems require Ed25519-signed data provenance.

## Known failure modes

- Payment not received — 402 response if x402 payment not provided
- Exchange data unavailable — one or more of the 3 exchanges may be unreachable
- No instruments found — ETH options market may be closed or illiquid
- Invalid attestation signature — Ed25519 signature verification failure
- Rate limiting — too many requests in short window

## How this service works

ETH options instrument discovery across 3 exchanges — Ed25519 signed attestation

## Output

A cryptographically signed (Ed25519) list of ETH options instruments aggregated from 3 exchanges, including strike prices, expiry dates, and per-exchange availability metadata, along with an attestation for data integrity verification.

## 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-88d9e6e7/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)