# DeFi TVL & Stablecoin Market Cap Data

> DeFi TVL & Stablecoin Market Cap Data is a paid API for AI agents from asistent-crypto.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Returns total value locked across DeFi protocols, top chains ranked by TVL, and aggregate stablecoin market capitalization

## Facts

- Endpoint: POST https://asistent-crypto.vercel.app/api/x402/data/defi-tvl
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/defi-tvl-stablecoin-market-cap-data-e36e1d91
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MhqVRYDXtd_IncoUXtq6j

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 defi-tvl-stablecoin-market-cap-data-e36e1d91 -d '<json body>'
```

Example prompt: Can you pull the current total value locked across all of DeFi, show me which chains are leading by TVL, and tell me what the aggregate stablecoin market cap looks like right now?

## When to prefer this

Use this endpoint when you need a single snapshot of macro DeFi health: aggregate TVL, chain-level TVL rankings, and stablecoin supply together in one call. Prefer this over individual protocol TVL endpoints when doing top-down market regime analysis rather than protocol-specific research. It is particularly useful when correlating stablecoin dry powder with TVL trends to gauge risk appetite.

## Known failure modes

- Upstream data provider outage returning stale or null TVL figures
- Payment failure if USDC balance is insufficient (x402 protocol rejection)
- Rate limiting or timeout if the underlying data aggregator is slow
- Partial data returned if one chain's TVL feed is unavailable

## How this service works

Total value locked across DeFi, the top chains by TVL, and aggregate stablecoin market cap. Stablecoin supply is the dry powder of the whole market: rising supply with rising TVL is risk appetite expanding, falling supply is capital genuinely leaving crypto rather than rotating inside it.

## Output

Returns aggregate DeFi total value locked (TVL) in USD, a ranked list of top blockchains by their individual TVL, and the combined stablecoin market capitalization. Together these three metrics serve as a high-level regime signal for DeFi market health and capital appetite.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "required": [],
     "properties": {}
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    },
    "pathParams": {
     "type": "object"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/defi-tvl-stablecoin-market-cap-data-e36e1d91/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from asistent-crypto.vercel.app](https://www.zero.xyz/host/asistent-crypto.vercel.app/llms.txt)