# Octav PRO – DeFi Protocols by Chain

> Octav PRO – DeFi Protocols by Chain is a paid API for AI agents from api.octav.fi, paid per call via x402, $0.025/call, status unknown (last checked 2026-09-10).

Returns the list of DeFi protocols supported by Octav on a specified blockchain chain

## Facts

- Endpoint: GET https://api.octav.fi/v1/agent/chains/%7BchainKey%7D/protocols
- Price: $0.025/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-10
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/octav-pro-defi-protocols-by-chain-8a8d99d4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_bEkwKRT-w9NbUa9RDoROK

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 octav-pro-defi-protocols-by-chain-8a8d99d4
```

Example prompt: What DeFi protocols does Octav support on Arbitrum — I want to know which ones I can track for my portfolio there.

## When to prefer this

Use this endpoint when you need to discover which DeFi protocols are available for a specific blockchain chain on Octav, before querying portfolio holdings or NAV data. Useful as a prerequisite step to understand what protocol-level data can be retrieved for a given address on that chain.

## Known failure modes

- Invalid or unsupported chainKey returns 404 or empty result
- Unrecognized chain identifier causes error response
- Network timeout if Octav API is unavailable
- Payment failure (402) if x402 payment is not processed correctly

## How this service works

Monitor crypto portfolios with automated NAV reports, exposure insights, and AI-powered transaction labeling. Octav Pro helps funds and institutions turn digital-asset complexity into clear, compliant reporting.

## Output

A JSON list of DeFi protocols supported by Octav on the specified blockchain chain, including protocol identifiers and relevant metadata for portfolio tracking purposes.

## Request schema (JSON Schema)

```json
{
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "method"
   ],
   "properties": {
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "chainKey"
     ],
     "properties": {
      "page": {
       "type": "number",
       "required": false,
       "description": "Page number for pagination"
      },
      "limit": {
       "type": "number",
       "required": false,
       "description": "Number of results per page (max 100)"
      },
      "chainKey": {
       "type": "string",
       "required": true,
       "description": "The chain key identifier (e.g. ethereum, polygon, solana)"
      }
     }
    }
   }
  },
  "output": {
   "properties": {
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/octav-pro-defi-protocols-by-chain-8a8d99d4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.octav.fi](https://www.zero.xyz/host/api.octav.fi/llms.txt)