# Mycelia Signal — Compound V3 DeFi Metrics Oracle

> Mycelia Signal — Compound V3 DeFi Metrics 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 Compound V3 protocol metrics (TVL, utilization rate, average supply APR) as an Ed25519-signed attestation for oracle-grade use.

## Facts

- Endpoint: GET https://api.myceliasignal.com/oracle/defi/metrics/compound
- 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-compound-v3-defi-metrics-oracle-be25b09a
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gAvdHlBDVp86mRAvy9Ih_

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-compound-v3-defi-metrics-oracle-be25b09a
```

Example prompt: Pull the latest Compound V3 metrics for me — TVL, utilization rate, and average supply APR — with a signed attestation I can use for verification.

## When to prefer this

Choose this endpoint when you need cryptographically attested, oracle-grade Compound V3 metrics (TVL, utilization, supply APR) rather than raw or unverified DeFi data. Ideal for smart contract oracle feeds, trust-minimized applications, or any workflow requiring Ed25519 signature verification on DeFi lending data. Prefer over generic DeFi aggregators when Compound V3-specific metrics with attestation are required.

## Known failure modes

- Upstream Compound V3 data unavailable — service may return 503 or stale data indicator
- Payment not processed (x402) — returns 402 Payment Required
- Malformed response if on-chain data source is temporarily unreachable
- Rate limiting if request quota exceeded

## How this service works

Compound V3 protocol metrics — TVL, utilization, avg supply APR — Ed25519 signed attestation

## Output

Returns a JSON payload containing Compound V3 protocol metrics including total value locked (TVL), utilization rate, and average supply APR, along with an Ed25519 cryptographic signature attesting to the data's authenticity, suitable for use in oracle-driven or trust-minimized 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-compound-v3-defi-metrics-oracle-be25b09a/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)