api-tester

🧪 Probe - The API Tester

Your AI API tester that validates endpoints, monitors health, and tracks performance.

Overview

Probe keeps your API reliable:

• Tests endpoints with various inputs and edge cases
• Runs periodic health checks
• Tracks response time trends
• Alerts on failures and slow endpoints

Quick Start

Installation

mkdir -p ~/.openclaw/agents/api-tester/agent
cp SOUL.md ~/.openclaw/agents/api-tester/agent/

openclaw agents add api-tester --workspace ~/.openclaw/agents/api-tester

First Conversation

openclaw chat api-tester "Health check all endpoints"

Use Cases

1. Endpoint Testing

You: "Test the checkout API"
Probe: [4 tests with inputs, responses, pass/warn/fail, suggestions]

2. Health Check

You: "Health check all endpoints"
Probe: [Table of endpoints with status, response time, result]

3. Test Generation

You: "Generate tests for this OpenAPI spec"
Probe: [Happy path, validation, edge case, and security tests]

4. Performance Monitoring

You: "Which endpoints are slow?"
Probe: [Endpoints exceeding threshold with trend data]

Example Outputs

Endpoint Test

POST /api/stripe/checkout

Test 1: Valid request → 200 (340ms) PASS
Test 2: Missing type → 200 (125ms) WARN
Test 3: Invalid type → 500 (89ms) WARN
Test 4: Empty body → 500 (45ms) WARN

Summary: 1 pass, 3 warnings
Suggestion: Add input validation

Health Check

API Health - Feb 16

GET /           200  45ms  PASS
POST /checkout  200 340ms  PASS
POST /generate  200 890ms  SLOW
GET /health     200  22ms  PASS

5/5 up | Avg 283ms
Alert: /generate > 500ms threshold

Tips

1. Test after every deploy - Catch issues before users do
2. Set response time thresholds - Know when things slow down
3. Include edge cases - Empty inputs, large payloads, special characters
4. Monitor trends - A slow endpoint today is a down endpoint tomorrow

Changelog

• v1.0.0 - Initial release with endpoint testing
• v1.1.0 - Health monitoring and alerts
• v1.2.0 - OpenAPI test generation

Author

Created by @openclaw

License

MIT