# QuantaFlow x402 API Gateway – DeFiLlama Proxy

> QuantaFlow x402 API Gateway – DeFiLlama Proxy is a paid API for AI agents from quanta-roan.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).

Proxies requests to DeFiLlama's DeFi analytics API through an x402 micropayment-gated gateway, charging $0.01 USDC per call

## Facts

- Endpoint: POST https://quanta-roan.vercel.app/api/service/defillama?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/quantaflow-x402-api-gateway-defillama-proxy-c69bdae0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZjlDpsIbTIA9_tnLf0QM0

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 quantaflow-x402-api-gateway-defillama-proxy-c69bdae0 -d '<json body>'
```

Example prompt: Can you pull the current TVL data for Uniswap from DeFiLlama — use the /tvl/uniswap path and GET method?

## When to prefer this

Use this endpoint when you need DeFiLlama DeFi analytics data (TVL, protocol stats, token prices) and want to pay per-call via x402 USDC micropayments without a long-term API subscription. Ideal for AI agents with x402 payment capability that need on-demand DeFi data at low per-call cost.

## Known failure modes

- Payment failure: insufficient USDC balance or x402 payment not accepted — gateway returns 402 Payment Required
- Invalid path: unrecognized DeFiLlama API path returns upstream 404 or error
- Upstream DeFiLlama outage: gateway may return 502 or timeout
- Malformed query parameters: upstream returns 400 bad request
- Rate limiting by upstream DeFiLlama API

## How this service works

Every request, a quantum of value. x402 protocol-based payment endpoint for web3/DeFi tools.

## Output

The raw upstream DeFiLlama API response body passed through after successful x402 micropayment, including TVL figures, protocol metadata, token prices, or other DeFiLlama data depending on the requested path. Content type mirrors the upstream response.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "body": {
   "type": "string",
   "description": "Optional JSON body forwarded to POST requests."
  },
  "path": {
   "type": "string",
   "description": "Path below the selected upstream origin."
  },
  "query": {
   "type": "object"
  },
  "method": {
   "enum": [
    "GET",
    "POST"
   ],
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "description": "The upstream response body and content type are passed through after successful payment."
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/quantaflow-x402-api-gateway-defillama-proxy-c69bdae0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from quanta-roan.vercel.app](https://www.zero.xyz/host/quanta-roan.vercel.app/llms.txt)