# BaseBuilder Trading - Early Buyers Hunter

> BaseBuilder Trading - Early Buyers Hunter is a paid API for AI agents from bb-trading-gold.vercel.app, paid per call via x402, $0.150039/call, status unknown (last checked 2026-10-21).

Identifies early buyers of a token or asset on-chain, returning wallet addresses and trade data for those who bought in before a price move

## Facts

- Endpoint: POST https://bb-trading-gold.vercel.app/api/hunter/early-buyers?utm_source=zero.xyz
- Price: $0.150039/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-21
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/basebuilder-trading-early-buyers-hunter-63a70cf9
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5APvbU49FJCn1Eu4v2Epe

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-trading-early-buyers-hunter-63a70cf9 -d '<json body>'
```

Example prompt: Can you find the early buyers of the token at contract address 0xAbC123... on Base — I want to see which wallets bought in before the price ran up?

## When to prefer this

Use this endpoint when you need to identify which wallets bought a token earliest — useful for tracking smart money, detecting insider buying, or studying pre-pump accumulation patterns on Base chain. Prefer this over generic blockchain explorers when you need structured, ranked early-buyer data with trade context rather than raw transaction lists.

## Known failure modes

- Invalid or non-existent contract address returns 400 or empty result
- Token has no early trade history on the specified chain
- Payment of $0.15 USDC not processed, returns 402 Payment Required
- Rate limiting or server error returns 500
- Unsupported chain or network returns error

## How this service works

BaseBuilder Trading API hub - 20 paid endpoints

## Output

A list of wallet addresses identified as early buyers of the specified token, including their entry prices, transaction timestamps, and relevant on-chain trade details that help identify smart money or pre-pump accumulation.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/basebuilder-trading-early-buyers-hunter-63a70cf9/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bb-trading-gold.vercel.app](https://www.zero.xyz/host/bb-trading-gold.vercel.app/llms.txt)