# humanlint.dev Code Review

> humanlint.dev Code Review is a paid API for AI agents from humanlint.dev, paid per call via x402, $5/call, status unknown (last checked 2026-09-14).

Submits code for human-assisted lint/review and returns feedback on code quality, bugs, and best practices

## Facts

- Endpoint: POST https://humanlint.dev/api/payments
- Price: $5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/humanlint-dev-f4843656
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pBVVm2n7ChP9D9vMntWQ5

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 humanlint-dev-f4843656 -d '<json body>'
```

Example prompt: Can you submit this JavaScript function to humanlint for a human code review and get back feedback on any bugs, style issues, or improvements? Here's the code: `function fetchUser(id) { return fetch('/api/user/' + id).then(r => r.json()); }`

## When to prefer this

Choose this endpoint when you need human-quality code review with real feedback rather than purely automated static analysis, especially for nuanced logic errors, architectural concerns, or readability issues that linters miss. Ideal for pre-merge checks or when automated tools have already passed but you want a second opinion.

## Known failure modes

- Invalid or missing code payload returns 400 Bad Request
- Payment not provided or insufficient USDC triggers 402 Payment Required
- Code too large or exceeds token/character limits returns 413 Payload Too Large
- Unsupported programming language may return reduced or no feedback
- Service unavailability returns 503 Service Unavailable

## How this service works

Code Review Request

## Output

Returns human-reviewed feedback on the submitted code, including identified bugs, style issues, potential improvements, and best-practice recommendations.

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "payment": {
   "type": "object"
  },
  "success": {
   "type": "boolean"
  },
  "codeReviewRequest": {
   "type": "object"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/humanlint-dev-f4843656/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from humanlint.dev](https://www.zero.xyz/host/humanlint.dev/llms.txt)