# 24K Labs AI Code Explainer

> 24K Labs AI Code Explainer is a paid API for AI agents from api.24klabs.ai, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Explains what a given code snippet does using an AI model, returning a plain-language description

## Facts

- Endpoint: POST https://api.24klabs.ai/api/explain-code
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/24k-labs-ai-code-explainer-eb6e8e84
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_WLsAX5MpiUbxkqDXLREeY

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 24k-labs-ai-code-explainer-eb6e8e84 -d '<json body>'
```

Example prompt: Can you explain what this Python function does? Here's the code: `def fib(n): return n if n <= 1 else fib(n-1) + fib(n-2)` — language is Python, no extra context needed.

## When to prefer this

Choose this endpoint when you need a quick, pay-per-use AI explanation of a code snippet without committing to a subscription or managing API keys — especially useful in agentic pipelines where on-demand code understanding is needed and USDC micropayments on Base L2 are already available.

## Known failure modes

- Missing or empty 'code' parameter returns an error
- Unsupported or ambiguous language causes degraded explanation quality
- Very large code snippets may hit token limits
- Payment not received causes 402 response before processing
- Malformed JSON in request body returns 400

## How this service works

Clear explanation of what code does, how it works, and why.

## Output

A JSON object containing the AI model used (e.g. claude-haiku-4-5), a plain-language explanation of what the code does, and the number of tokens consumed in generating the response.

## Example request

```json
{
 "code": "def calculate_sum(numbers):\n    total = 0\n    for num in numbers:\n        total += num\n    return total",
 "context": "This is a simple utility function",
 "language": "python"
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "code": {
   "type": "string",
   "description": "Primary input content"
  },
  "context": {
   "type": "string",
   "description": "Optional context or instructions"
  },
  "language": {
   "type": "string",
   "description": "Programming language (code services)"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "model": "claude-haiku-4-5",
  "result": "This function computes Fibonacci numbers recursively...",
  "tokens_used": 180
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/24k-labs-ai-code-explainer-eb6e8e84/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.24klabs.ai](https://www.zero.xyz/host/api.24klabs.ai/llms.txt)