# Mycelia Signal — Aave V3 DeFi Metrics Oracle

> Mycelia Signal — Aave 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 2026-09-15).

Returns Aave V3 protocol metrics including TVL and average supply APR across all chains with a full rate breakdown, delivered as an Ed25519-signed attestation

## Facts

- Endpoint: GET https://api.myceliasignal.com/oracle/defi/metrics/aave
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mycelia-signal-aave-v3-defi-metrics-oracle-4af6fd8d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_IQFPVBsDlOiL2FOez7IC_

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-aave-v3-defi-metrics-oracle-4af6fd8d
```

Example prompt: What's the current Aave V3 TVL and average supply APR across all chains — I need the full rate breakdown with a signed attestation I can verify?

## When to prefer this

Choose this endpoint when you need cryptographically attested Aave V3 metrics (TVL and supply APR) for use in smart contracts, oracle pipelines, or any context requiring verifiable provenance. Prefer it over generic DeFi aggregators when Ed25519 attestation is required, or when you specifically need Aave V3 data (not Morpho, Compound, or other protocols).

## Known failure modes

- Upstream Aave subgraph or RPC data unavailable — may return stale or error response
- Payment of $0.05 USDC not received — 402 Payment Required
- Chain data partially unavailable — incomplete rate breakdown for some networks
- Signature verification failure if public key not matched correctly by consumer

## How this service works

Aave V3 protocol metrics — TVL, avg supply APR across all chains with full rate breakdown — Ed25519 signed attestation

## Output

A signed payload containing Aave V3's total value locked (TVL), average supply APR aggregated across all supported chains, a full per-chain or per-asset rate breakdown, and an Ed25519 cryptographic signature for attestation and on-chain verifiability.

## 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-aave-v3-defi-metrics-oracle-4af6fd8d/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)