24K Labs Explain Code

x402

24K Labs Explain Code 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).

Accepts a code snippet and returns a plain-English explanation of what the code does, powered by Claude AI, billed per request in USDC on Base L2.

Price / call$0.05

Seller volume →—

Success—

StatusUnknown

How this service works

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

Output

A JSON response containing the model used (e.g. claude-haiku-4-5), a natural language explanation of the provided code snippet, and the number of tokens consumed.

Example use cases

Example prompt

“Can you explain what this JavaScript function does: `function fib(n) { return n <= 1 ? n : fib(n-1) + fib(n-2); }` — give me a plain English explanation using 24K Labs.”

Technical details

Endpoint

POSThttps://api.24klabs.ai/api/v1/explain-code

When to prefer

Choose this endpoint when you need a quick, per-request AI-powered explanation of a code snippet without committing to a subscription or managing API keys — ideal for agents or apps that occasionally need code explanation and want to pay only for what they use via USDC on Base L2.

Side effects

Missing or empty `code` parameter returns an error
Unsupported or ambiguous language may reduce explanation quality
Payment failure (insufficient USDC on Base L2) results in 402 response
Very large code snippets may exceed token limits
Network timeout for unusually complex or long inputs

Input

{
  "code": "function add(a, b) { return a + b; }",
  "context": "Simple utility function",
  "language": "javascript"
}

Schema · Request body

Field	Type	Description
code	string	Primary input content
context	string	Optional context or instructions
language	string	Programming language (code services)

Output

{
  "tier": "standard",
  "model": "claude-haiku-4-5-20251001",
  "result": "# Code Explanation: `add` function\n\n## Summary\nThis function takes two numbers and returns their sum.\n\n## Step-by-Step Logic\n1. The function accepts two parameters: `a` and `b`\n2. It adds them together using the `+` operator\n3. It immediately returns the result\n\n## Design Notes\nThis is a simple, pure function with no side effects. It's useful as a reusable utility rather than writing `a + b` inline throughout your code.\n\n## Potential Issues & Edge Cases\n- **Type coercion**: JavaScript's `+` operator will concatenate strings instead of adding them numerically. For example, `add(\"5\", \"3\")` returns `\"53\"` instead of `8`\n- **No type validation**: The function doesn't check if inputs are numbers\n- **No null/undefined handling**: Passing `null` or `undefined` will produce unexpected results (`null + 5` = `5`, `undefined + 5` = `NaN`)\n\n## Better Practice\nIf type safety matters, you might add validation:\n```javascript\nfunction add(a, b) { \n  if (typeof a !== 'number' || typeof b !== 'number') {\n    throw new Error('Arguments must be numbers');\n  }\n  return a + b; \n}\n```",
  "service": "explain-code",
  "request_id": "305eec8d-60b1-4b24-9174-792fa608c6dc",
  "tokens_used": 459
}

Schema · Response

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

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Technical details

Endpoint

POSThttps://api.24klabs.ai/api/v1/explain-code

When to prefer

Side effects

Missing or empty `code` parameter returns an error
Unsupported or ambiguous language may reduce explanation quality
Payment failure (insufficient USDC on Base L2) results in 402 response
Very large code snippets may exceed token limits
Network timeout for unusually complex or long inputs

Input

{
  "code": "function add(a, b) { return a + b; }",
  "context": "Simple utility function",
  "language": "javascript"
}

Schema · Request body

Field	Type	Description
code	string	Primary input content
context	string	Optional context or instructions
language	string	Programming language (code services)

Output

{
  "tier": "standard",
  "model": "claude-haiku-4-5-20251001",
  "result": "# Code Explanation: `add` function\n\n## Summary\nThis function takes two numbers and returns their sum.\n\n## Step-by-Step Logic\n1. The function accepts two parameters: `a` and `b`\n2. It adds them together using the `+` operator\n3. It immediately returns the result\n\n## Design Notes\nThis is a simple, pure function with no side effects. It's useful as a reusable utility rather than writing `a + b` inline throughout your code.\n\n## Potential Issues & Edge Cases\n- **Type coercion**: JavaScript's `+` operator will concatenate strings instead of adding them numerically. For example, `add(\"5\", \"3\")` returns `\"53\"` instead of `8`\n- **No type validation**: The function doesn't check if inputs are numbers\n- **No null/undefined handling**: Passing `null` or `undefined` will produce unexpected results (`null + 5` = `5`, `undefined + 5` = `NaN`)\n\n## Better Practice\nIf type safety matters, you might add validation:\n```javascript\nfunction add(a, b) { \n  if (typeof a !== 'number' || typeof b !== 'number') {\n    throw new Error('Arguments must be numbers');\n  }\n  return a + b; \n}\n```",
  "service": "explain-code",
  "request_id": "305eec8d-60b1-4b24-9174-792fa608c6dc",
  "tokens_used": 459
}

Schema · Response

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