# MyCeliaSignal ETH Futures Term Structure

> MyCeliaSignal ETH Futures Term Structure is a paid API for AI agents from api.myceliasignal.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-13).

Returns the ETH/USD futures carry curve and term structure aggregated across Deribit, OKX, and Bybit, delivered as an Ed25519-signed attestation

## Facts

- Endpoint: GET https://api.myceliasignal.com/oracle/term-structure/eth/usd
- Price: $0.05/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-65aff2ac
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bbVunnhA9oFOnL2yPAI57

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-65aff2ac
```

Example prompt: Pull the current ETH/USD futures term structure — the carry curve across Deribit, OKX, and Bybit — and give me the signed attestation so I can verify the data integrity.

## When to prefer this

Use this endpoint when you need a cross-exchange, cryptographically attested ETH futures term structure for carry trading analysis, basis arbitrage, or on-chain oracle use cases. Prefer this over single-exchange APIs when you need multi-venue consensus on ETH futures pricing, or when you require a signed data payload for trustless downstream consumption.

## Known failure modes

- Payment required (402): x402 micropayment of $0.05 USDC not provided or invalid
- Exchange data unavailable: one or more of Deribit, OKX, Bybit APIs are unreachable
- Stale data: futures prices may briefly lag if upstream feeds are delayed
- Signature verification failure: Ed25519 attestation cannot be validated if response is malformed
- Rate limiting: too many requests without valid payment tokens

## How this service works

ETH futures term structure — carry curve across Deribit, OKX, Bybit — Ed25519 signed attestation

## Output

A cryptographically signed (Ed25519) payload containing the ETH/USD futures term structure: the carry curve showing annualized basis/carry at each expiry across Deribit, OKX, and Bybit, enabling analysis of contango/backwardation and cross-exchange arbitrage opportunities.

## 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-65aff2ac/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)