# Ozmium Earn Vaults – Morpho MetaMorpho Vault List

> Ozmium Earn Vaults – Morpho MetaMorpho Vault List is a paid API for AI agents from ozmium.org, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Returns all listed MetaMorpho (ERC-4626) vaults on Base with their address, underlying asset details, live net APY, and TVL

## Facts

- Endpoint: GET https://ozmium.org/v1/earn/vaults
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ozmium-earn-vaults-morpho-metamorpho-vault-list-7d4ddbb9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_8ZBg7PlCsfopbGnMcLovP

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 ozmium-earn-vaults-morpho-metamorpho-vault-list-7d4ddbb9
```

Example prompt: Show me all the MetaMorpho earn vaults currently listed on Base — I want to see each vault's address, the underlying asset, the live net APY, and TVL so I can decide where to deposit.

## When to prefer this

Use this endpoint when an agent needs to discover available MetaMorpho ERC-4626 vaults on Base mainnet before constructing a deposit/earn transaction. Prefer this over generic DeFi aggregators when the workflow specifically targets Morpho MetaMorpho vaults and feeds into Ozmium's /v1/tx/earn endpoint. Best used as a discovery/input step before selecting a vault address for a transaction.

## Known failure modes

- No vaults returned if Morpho subgraph or indexer is temporarily unavailable
- Stale APY data if on-chain oracle or rate feed is lagging
- Payment required error (402) if x402 USDC micro-payment not attached
- Rate limit or quota exceeded if called too frequently
- Empty array if no vaults are currently listed

## How this service works

Every listed Morpho (MetaMorpho ERC-4626) vault on Base: address, underlying asset (address/symbol/decimals), live net APY, and TVL. The input universe for /v1/tx/earn. GET /v1/earn/vaults.

## Output

A JSON array of MetaMorpho vault objects, each containing the vault's contract address, symbol, underlying asset address/symbol/decimals, live net APY (as a decimal), and TVL on Base mainnet. This list serves as the input universe for constructing earn transactions via /v1/tx/earn.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "data": {
       "type": "object",
       "properties": {
        "vaults": {
         "type": "array",
         "items": {
          "type": "object",
          "properties": {
           "netApy": {
            "type": "number"
           },
           "symbol": {
            "type": "string"
           },
           "address": {
            "type": "string"
           }
          }
         }
        }
       }
      },
      "network": {
       "type": "string"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/ozmium-earn-vaults-morpho-metamorpho-vault-list-7d4ddbb9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ozmium.org](https://www.zero.xyz/host/ozmium.org/llms.txt)