# Chain DeFi Overview (TVL, Protocols, Stablecoins, DEX Volume, Fees)

> Chain DeFi Overview (TVL, Protocols, Stablecoins, DEX Volume, Fees) is a paid API for AI agents from twin.unykorn.org, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-01).

Returns a comprehensive DeFi snapshot for any specified blockchain chain, including TVL with trend, top protocols, stablecoin data, DEX volume, and fee metrics — all in a single call.

## Facts

- Endpoint: POST https://twin.unykorn.org/defi/chain-overview?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/chain-defi-overview-tvl-protocols-stablecoins-dex-volume-fees-c5bc1469
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mhL03UIuzAhkc_YCu71lF

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 chain-defi-overview-tvl-protocols-stablecoins-dex-volume-fees-c5bc1469 -d '<json body>'
```

Example prompt: Can you pull the full DeFi overview for the Arbitrum chain — TVL with trend, top protocols, stablecoin data, DEX volume, and fee stats all at once?

## When to prefer this

Choose this endpoint when you need a comprehensive, multi-metric DeFi snapshot for a specific blockchain in a single API call rather than querying TVL, stablecoins, DEX volume, and fees separately. It is ideal for dashboards, investment research, chain comparisons, or monitoring DeFi ecosystem health across multiple chains. Prefer it over chain-specific sibling endpoints (e.g., Base DeFi overview) when the target chain is not Base, Bittensor, or dYdX, or when you want a single generic endpoint that works across any chain.

## Known failure modes

- Unknown or misspelled chain name returns an error or empty result
- Chain with negligible DeFi activity may return sparse or zero-value data
- Upstream data provider outage may cause stale or missing metrics
- Payment failure (x402) if USDC balance is insufficient

## How this service works

Chain DeFi overview in ONE call: TVL + trend, top protocols, stablecoins, DEX volume, fees — Genesis402 / UnyKorn Operator Network

## Output

A structured JSON response containing the queried chain's total value locked (TVL) and its recent trend, a list of top DeFi protocols with their individual TVL contributions, stablecoin market data, decentralized exchange (DEX) trading volume, and protocol fee metrics — all aggregated in a single response.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "params": {
   "type": "object",
   "properties": {
    "chain": {
     "type": "string",
     "description": "required: chain name, e.g. Base"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "type": "defi-chain-overview",
  "receipt": {
   "tx_hash": "0x<64hex>",
   "amount_usd": 0.01,
   "receipt_id": "g402-<16hex>"
  },
  "sources": [
   {
    "ok": true,
    "name": "<source>"
   }
  ],
  "limitations": "<text>",
  "generated_at": "<iso time>",
  "evidence_hash": "sha256:<64hex>"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/chain-defi-overview-tvl-protocols-stablecoins-dex-volume-fees-c5bc1469/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from twin.unykorn.org](https://www.zero.xyz/host/twin.unykorn.org/llms.txt)