API Mock Responses

Generate a realistic mock API response with headers, status code and a body that matches the schema.

Pay by wallet (x402) AI-generated api-mock-response

Example

Input

{
  "url": "https://example.com"
}

Answer

{
  "url": "https://example.com",
  "body": {
    "data": {
      "id": "user_123456",
      "name": "John Doe",
      "email": "john.doe@example.com",
      "status": "active",
      "profile": {
        "bio": "Software Engineer",
        "location": "San Francisco, CA",
        "avatar_url": "https://example.com/avatars/user_123456.jpg"
      },
      "created_at": "2023-06-15T08:30:00Z",
      "updated_at": "2024-01-10T14:32:15Z"
    },
    "meta": {
      "version": "1.0",
      "timestamp": "2024-01-10T14:32:15Z"
    },
    "success": true
  },
  "method": "GET",
  "headers": {
    "Date": "Wed, 10 Jan 2024 14:32:15 GMT",
    "ETag": "W/\"33a64df551425fcc55e4d42a148795d9f25f89d4\"",
    "Server": "nginx/1.24.0",
    "Connection": "keep-alive",
    "Content-Type": "application/json",
    "X-Request-Id": "550e8400-e29b-41d4-a716-446655440000",
    "Cache-Control": "public, max-age=300",
    "X-RateLimit-Limit": "5000",
    "X-RateLimit-Reset": "1699564800",
    "X-RateLimit-Remaining": "4999"
  },
  "status_code": 200,
  "content_type": "application/json"
}

Inputs

Field	Type	Required	What it is
`url`	string	Yes	—
`method`	string	No	—
`status_code`	integer	No	—
`response_schema`	object	No	—

Output fields

How reliably each field appears in a successful answer.

Field	Type	Appears
`body`	any	Always (present in every successful answer)
`headers`	object	Always (present in every successful answer)
`status_code`	integer	Always (present in every successful answer)
`content_type`	string	Always (present in every successful answer)

How to call it

The same tool through each route. MCP clients reach it through Strale’s server at https://api.strale.io/mcp; the call below is what the agent sends.

# Needs an API key. max_price_cents caps what this call may cost.
curl -X POST https://api.strale.io/v1/do \
  -H "Authorization: Bearer $STRALE_API_KEY" \
  -H 'Content-Type: application/json' \
  -d '{
    "capability_slug": "api-mock-response",
    "inputs": {
      "url": "https://example.com"
    },
    "max_price_cents": 5
  }'

{
  "tool": "strale_execute",
  "arguments": {
    "slug": "api-mock-response",
    "inputs": {
      "url": "https://example.com"
    },
    "max_price_cents": 5
  }
}

import { Strale } from "straleio";

const strale = new Strale({ apiKey: process.env.STRALE_API_KEY! });
const result = await strale.do({
  capability_slug: "api-mock-response",
  inputs: {
    "url": "https://example.com"
  },
  max_price_cents: 5,
});

import os
from straleio import Strale, DoRequest

strale = Strale(api_key=os.environ["STRALE_API_KEY"])
result = strale.do(DoRequest(
    capability_slug="api-mock-response",
    inputs={
        "url": "https://example.com",
    },
    max_price_cents=5,
))

# No account. The first request answers 402 with the price in USDC;
# an x402 client pays it from your wallet and repeats the request.
curl -i 'https://api.strale.io/x402/v2/api-mock-response?url=https%3A%2F%2Fexample.com'

Limitations

Mock values may fail rules spanning several fields
Generates plausible mock data based on schema — mock values may not satisfy complex cross-field validation rules
What to do instead: Provide example responses in the input to guide mock generation for fields with specific value constraints