# BaseBuilder Search Code Explain

> BaseBuilder Search Code Explain is a paid API for AI agents from bb-search.vercel.app, paid per call via x402, $0.129303/call, status unknown (last checked 2026-10-19).

Explains code snippets using the BaseBuilder Search API hub's code explanation endpoint

## Facts

- Endpoint: POST https://bb-search.vercel.app/api/code-explain?utm_source=zero.xyz
- Price: $0.129303/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-19
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/basebuilder-search-code-explain-32492611
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_f3qwAhKvUSEungdiwbZTq

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-search-code-explain-32492611 -d '<json body>'
```

Example prompt: Can you explain what this code does in plain English? Here's the snippet: `function debounce(fn, delay) { let timer; return function(...args) { clearTimeout(timer); timer = setTimeout(() => fn.apply(this, args), delay); }; }`

## When to prefer this

Use this endpoint when you need a quick, paid, on-demand natural language explanation of a code snippet without setting up your own LLM infrastructure. Particularly useful in developer tooling agents or code review workflows that need to surface human-readable descriptions of unfamiliar code.

## Known failure modes

- Missing or empty code input returns an error
- Unsupported or ambiguous code format may yield a generic explanation
- Payment of 0.129303 USDC required via x402 protocol — missing payment header returns 402
- Very long code snippets may be truncated or refused
- Malformed request body returns 400 error

## How this service works

BaseBuilder Search API hub - 18 paid endpoints

## Output

A natural language explanation of the submitted code snippet, describing what the code does, how it works, and its likely purpose or use case.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/basebuilder-search-code-explain-32492611/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from bb-search.vercel.app](https://www.zero.xyz/host/bb-search.vercel.app/llms.txt)