# Vextorium DeFi Chains TVL

> Vextorium DeFi Chains TVL is a paid API for AI agents from api.vextorium.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-10-28).

Returns total value locked (TVL) by blockchain across DeFi protocols, including each chain's share percentage and native gas token, sourced from DefiLlama.

## Facts

- Endpoint: POST https://api.vextorium.com/v1/defi-chains?utm_source=zero.xyz
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-28
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/vextorium-defi-chains-tvl-6907a209
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jK66nOVtc4PIXE-3f559J

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 vextorium-defi-chains-tvl-6907a209 -d '<json body>'
```

Example prompt: Show me the top 20 blockchains ranked by DeFi total value locked, including each chain's TVL in USD, its share of the total, and the native gas token.

## When to prefer this

Use this endpoint when you need a ranked, multi-chain overview of DeFi TVL with percentage market share and gas token metadata in a single call. Prefer this over chain-specific endpoints when the user needs a cross-chain comparison or wants to understand the overall DeFi ecosystem distribution. Ideal for research, reporting, and investment analysis tasks where DefiLlama-sourced TVL rankings are needed.

## Known failure modes

- Invalid limit value outside 1-50 range returns a validation error
- Missing or malformed request body may return a 400 error
- Upstream DefiLlama data unavailable may cause a 502 or stale response
- Network timeout if DefiLlama source is slow to respond

## How this service works

558 pay-per-call data APIs for AI agents: Solana and EVM on-chain data, tokenized stocks, DeFi, Hyperliquid, economy and official statistics, FX, validation, web and developer tools. Pay in USDC via x402.

## Output

A JSON object containing an array of up to 50 chains, each with chain name, TVL in USD, percentage share of total DeFi TVL, and native gas token symbol, plus the aggregate total DeFi TVL across all chains. Data is sourced from DefiLlama.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "limit": {
   "type": "integer",
   "maximum": 50,
   "minimum": 1,
   "description": "Number of chains to return (1-50, default 15)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "note": "Total DeFi TVL by chain. Source: DefiLlama.",
  "chains": [
   {
    "chain": "Ethereum",
    "tvl_usd": 53236314686,
    "share_pct": 56.16,
    "token_gas": "ETH"
   },
   {
    "chain": "Solana",
    "tvl_usd": 6507812212,
    "share_pct": 6.87,
    "token_gas": "SOL"
   }
  ],
  "total_tvl_usd": 94786375148
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/vextorium-defi-chains-tvl-6907a209/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.vextorium.com](https://www.zero.xyz/host/api.vextorium.com/llms.txt)