# Mycelia Signal ETH Options Expiry Dates Oracle

> Mycelia Signal ETH Options Expiry Dates Oracle is a paid API for AI agents from api.myceliasignal.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Returns the next 8 Deribit ETH options expiry dates tagged as weekly, monthly, or quarterly, with an Ed25519 signed attestation

## Facts

- Endpoint: GET https://api.myceliasignal.com/oracle/econ/expiry/eth
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mycelia-signal-eth-options-expiry-dates-oracle-c37bd97a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SrKRexxUJsYuxelkhfpT_

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 mycelia-signal-eth-options-expiry-dates-oracle-c37bd97a
```

Example prompt: What are the next 8 ETH options expiry dates on Deribit, and can you tell me which ones are weekly, monthly, or quarterly — with a signed attestation I can verify?

## When to prefer this

Use this endpoint when you need a cryptographically attested, structured list of upcoming ETH options expiry dates from Deribit, especially for on-chain oracle use cases, smart contract triggers, or automated trading strategies that require verifiable expiry classification (weekly/monthly/quarterly). Prefer this over raw Deribit API calls when you need the Ed25519 signed attestation for trustless verification.

## Known failure modes

- Deribit API unavailable — returns upstream error or stale data warning
- Ed25519 signing failure — attestation may be missing or invalid
- Payment not processed — returns 402 Payment Required if x402 header is missing or incorrect
- Rate limit exceeded — returns 429 Too Many Requests
- Unexpected schema change from Deribit — expiry classification may be incorrect

## How this service works

ETH options expiry dates — next 8 Deribit expiries tagged weekly/monthly/quarterly — Ed25519 signed attestation

## Output

A list of the next 8 Deribit ETH options expiry dates, each tagged with its type (weekly, monthly, or quarterly), accompanied by an Ed25519 cryptographic signature attesting to the authenticity of the data for use in oracle-driven or on-chain applications.

## 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/mycelia-signal-eth-options-expiry-dates-oracle-c37bd97a/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)