# Mycelia Signal BTC Options Expiry Dates Oracle

> Mycelia Signal BTC 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 BTC options expiry dates tagged as weekly, monthly, or quarterly, with Ed25519 signed attestation

## Facts

- Endpoint: GET https://api.myceliasignal.com/oracle/econ/expiry/btc
- 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-btc-options-expiry-dates-oracle-be597b35
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_s4uV17yH0vKfe69czHzGI

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-btc-options-expiry-dates-oracle-be597b35
```

Example prompt: What are the next 8 BTC options expiry dates on Deribit, with each one labeled as weekly, monthly, or quarterly? I need a cryptographically signed response I can use in an oracle.

## When to prefer this

Use this endpoint when you need a cryptographically attested, oracle-grade list of upcoming BTC options expiry dates from Deribit, classified by expiry type (weekly/monthly/quarterly). Ideal for DeFi protocols, smart contracts, or automated trading systems that require tamper-evident expiry schedule data without querying Deribit directly.

## Known failure modes

- Deribit API unavailable — upstream data source unreachable
- Signing key failure — Ed25519 attestation cannot be generated
- Rate limiting or payment failure — x402 payment not processed
- Stale data — expiry list may lag real-time Deribit state if cached

## How this service works

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

## Output

A list of the next 8 BTC options expiry dates from Deribit, each tagged as weekly, monthly, or quarterly, accompanied by an Ed25519 signed attestation for cryptographic verification and oracle use.

## 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-btc-options-expiry-dates-oracle-be597b35/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)