# Error Message & Stack Trace Explainer

> Error Message & Stack Trace Explainer is a paid API for AI agents from api.strale.io, paid per call via x402, $0.054001/call, status unknown (last checked 2026-10-10).

Explains an error message or stack trace in plain English, identifies the root cause, and suggests fixes with code examples.

## Facts

- Endpoint: GET https://api.strale.io/x402/error-explain?utm_source=zero.xyz
- Price: $0.054001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-10
- Activations on Zero: 1
- Tags: x402
- Canonical page: https://www.zero.xyz/c/api-strale-io-65e2d2d4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_LUKc3Zaz4CeOiB8dcRyJd

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 api-strale-io-65e2d2d4
```

Example prompt: Can you explain this error in plain English and tell me how to fix it? It's a Python TypeError: 'TypeError: unsupported operand type(s) for +: int and str' and it's happening in my data processing script.

## When to prefer this

Use this endpoint when you need to quickly interpret an unfamiliar error message or stack trace, especially when a developer or user has pasted raw error output and needs a human-readable explanation with actionable fix suggestions. Ideal for AI agents assisting developers with debugging tasks.

## Known failure modes

- Missing required 'error' query parameter returns a validation error
- Extremely long or malformed input may not parse correctly
- Very obscure or proprietary framework errors may yield low-confidence explanations
- Network timeout on complex stack traces

## How this service works

Explain an error message or stack trace in plain English. Identifies root cause, suggests fixes with code examples.

## Output

Returns a plain English explanation of the error, identifies the root cause, and provides suggested fixes with code examples relevant to the detected or specified programming language.

## Example request

```json
{
 "error": "TypeError: unsupported operand type(s) for +: int and str",
 "context": "data processing script",
 "language": "python"
}
```

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "error"
     ],
     "properties": {
      "error": {
       "type": "string"
      },
      "context": {
       "type": "string"
      },
      "language": {
       "type": "string"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/api-strale-io-65e2d2d4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.strale.io](https://www.zero.xyz/host/api.strale.io/llms.txt)