# QuantaFlow DexScreener Gateway

> QuantaFlow DexScreener Gateway is a paid API for AI agents from quanta-roan.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-12).

Proxies requests to the DexScreener API via x402 micropayment protocol, returning DEX trading pair and token data for web3/DeFi use cases.

## Facts

- Endpoint: POST https://quanta-roan.vercel.app/api/service/dexscreener?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-12
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quantaflow-dexscreener-gateway-73facbc6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_PyrBBcoJbPN4ZdTW84_j9

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-dexscreener-gateway-73facbc6 -d '<json body>'
```

Example prompt: Pull the latest DexScreener data for the ETH/USDC pair on Uniswap V3 — I want to see the current price, liquidity, and 24h volume.

## When to prefer this

Choose this endpoint when you need DexScreener DEX and token data and want to pay per-call via x402 micropayments without managing a DexScreener API key. Ideal for AI agents operating in web3 environments with on-chain payment rails, or when building DeFi tools that need real-time token pricing and liquidity data on a usage-based cost model.

## Known failure modes

- Payment failure: insufficient USDC balance or x402 handshake rejected — returns 402 Payment Required
- Invalid path: malformed or unsupported DexScreener sub-path — upstream returns 404
- Rate limiting: DexScreener upstream throttles repeated requests — returns 429
- Invalid token address: queried token does not exist on DexScreener — empty or error response passed through
- Network timeout: upstream DexScreener API unavailable — returns 502 or 504

## How this service works

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

## Output

Returns the raw upstream DexScreener API response, including token pair metadata, current price, liquidity depth, trading volume, price change percentages, and transaction counts, passed through after successful x402 micropayment authorization.

## 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-dexscreener-gateway-73facbc6/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)