# santyvv-data DeFi Protocol TVL

> santyvv-data DeFi Protocol TVL is a paid API for AI agents from x402.santyvv.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).

Returns the current Total Value Locked (TVL) for a specified DeFi protocol

## Facts

- Endpoint: GET https://x402.santyvv.com/api/defi/protocol-tvl?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/santyvv-data-defi-protocol-tvl-6f40b06b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_guXAlUbSA5YPFpXvW-2YI

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 santyvv-data-defi-protocol-tvl-6f40b06b
```

Example prompt: What is the current TVL of the Uniswap protocol? I need the latest on-chain total value locked figure.

## When to prefer this

Choose this endpoint when you need a quick, pay-per-call lookup of a single DeFi protocol's TVL without signing up for a data provider account. Ideal for agents that need on-demand DeFi metrics in a lightweight, accountless flow using x402 micropayments on Base. Prefer it over full analytics platforms when you only need TVL for one protocol at a time and want to avoid subscription overhead.

## Known failure modes

- Protocol identifier not recognized — returns an error if the protocol name or slug is invalid
- Protocol not indexed — some smaller or newer protocols may not be available
- Rate limit or payment failure — x402 payment not processed, returning 402 Payment Required
- Network or upstream data provider outage causing stale or missing TVL data

## How this service works

Market and on-chain data, paid per call in USDC on Base through the x402 protocol. No accounts, no API keys. Sources are public data providers; the value added here is keyless access, edge caching, multi-source fallback and normalised responses.

## Output

Returns the current Total Value Locked (TVL) for the requested DeFi protocol, expressed as a numeric value (typically in USD), representing the aggregate value of all assets deposited in that protocol's smart contracts at the time of the query.

## 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
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/santyvv-data-defi-protocol-tvl-6f40b06b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.santyvv.com](https://www.zero.xyz/host/x402.santyvv.com/llms.txt)