# Automated Test Generation for Code Snippets

> Automated Test Generation for Code Snippets is a paid API for AI agents from pearl-valium-stickers-upc.trycloudflare.com, paid per call via x402, $0.03/call, status unknown (last checked 2026-10-31).

Generates unit/integration tests for a given code snippet, matching the file's existing test framework.

## Facts

- Endpoint: POST https://pearl-valium-stickers-upc.trycloudflare.com/v1/coder/test-gen?utm_source=zero.xyz
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/automated-test-generation-for-code-snippets-8a0e1dc7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_j2yAesm6vtYo_I4hWM2g7

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 automated-test-generation-for-code-snippets-8a0e1dc7 -d '<json body>'
```

Example prompt: Generate unit tests for this function — it's part of a Python codebase that uses pytest, so make sure the tests match that style: `def add(a, b): return a + b`.

## When to prefer this

Choose this endpoint when you need test code generated locally (privacy-preserving, no data leaving the machine) from a specific code snippet, especially when you want the output to match an existing test framework automatically. Prefer over generic LLM completions when you want structured test scaffolding without manual prompt engineering.

## Known failure modes

- Malformed or missing code snippet results in empty or nonsensical test output
- Ambiguous or unknown test framework may cause framework mismatch in generated tests
- Very large code snippets may hit token limits and produce incomplete tests
- Model may hallucinate framework-specific APIs if the framework is uncommon
- Network timeout due to local inference latency on complex code

## How this service works

Generate tests for a code snippet (matches file's existing test framework).

## Output

Returns generated test code as structured choices (matching the OpenAI-compatible response format), with test cases scaffolded to match the detected or specified test framework of the input code snippet.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "usage": {
   "type": "object"
  },
  "choices": {
   "type": "array"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/automated-test-generation-for-code-snippets-8a0e1dc7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from pearl-valium-stickers-upc.trycloudflare.com](https://www.zero.xyz/host/pearl-valium-stickers-upc.trycloudflare.com/llms.txt)