# BaseBuilder Crypto DexScreener Proxy

> BaseBuilder Crypto DexScreener Proxy is a paid API for AI agents from bb-crypto.vercel.app, paid per call via x402, $0.160604/call, status unknown (last checked 2026-09-15).

Fetches decentralized exchange (DEX) token pair data and market information via a DexScreener integration

## Facts

- Endpoint: POST https://bb-crypto.vercel.app/api/dexscreener
- Price: $0.160604/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/basebuilder-crypto-dexscreener-proxy-cbaa8ce3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_fqyJKCIOEouiihvDSgouC

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 basebuilder-crypto-dexscreener-proxy-cbaa8ce3 -d '<json body>'
```

Example prompt: Can you pull up the DexScreener data for the token at contract address 0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed on Base — I want to see its current price, liquidity, and 24h trading volume.

## When to prefer this

Use this endpoint when you need real-time DEX market data for a specific token, especially on newer or smaller tokens not covered by centralized exchange APIs. Prefer this over CoinGecko or CoinMarketCap when you need granular DEX-specific data like liquidity pool info, exact pair addresses, or data for freshly launched tokens.

## Known failure modes

- Token address not found on any DEX — returns empty or null pair data
- Invalid or malformed contract address input — returns error response
- Token exists but has no active liquidity pairs — returns empty results
- Network or upstream DexScreener API downtime — returns 503 or timeout
- Payment not processed correctly — returns 402 payment required

## How this service works

BaseBuilder Crypto API hub - 26 paid endpoints

## Output

Returns DEX pair information for the queried token, including current price, liquidity pool depth, 24-hour trading volume, market cap, the DEX platform it's listed on, and price change percentages.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/basebuilder-crypto-dexscreener-proxy-cbaa8ce3/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bb-crypto.vercel.app](https://www.zero.xyz/host/bb-crypto.vercel.app/llms.txt)