API Rate Manager 🚦

---

name: api-rate-manager

description: Smart API rate limit manager with auto-retry, queue, and cost optimization. Prevents 429 errors and manages API quotas efficiently.

version: 1.0.0

author: OpenClaw Agent

tags:

- api

- rate-limit

- retry

- queue

- optimization

homepage: https://github.com/openclaw/skills/api-rate-manager

metadata:

openclaw:

emoji: 🚦

pricing:

basic: "19 USDC"

pro: "49 USDC (with analytics)"

---

# API Rate Manager 🚦

Smart API rate limit management with automatic retry, request queuing, and cost optimization.

---

Problem Solved

When calling APIs (ClawHub, Perplexity, OpenAI, etc.), you often hit rate limits:

❌ Rate limit exceeded (retry in 60s, remaining: 0/120)
❌ Error 429: Too Many Requests
❌ This request requires more credits

This skill **automatically handles** all of that for you.

---

Features

✅ Automatic Retry

✅ Request Queue

✅ Smart Timing

✅ Multi-API Support

✅ Cost Optimization

---

Installation

clawhub install api-rate-manager

---

Quick Start

Basic Usage

const { RateManager } = require('api-rate-manager');

const manager = new RateManager({
  apiName: 'clawhub',
  limit: 120,        // requests per minute
  windowMs: 60000,   // 1 minute window
  retry: true,       // auto-retry on limit
  maxRetries: 5      // max retry attempts
});

// Make API calls
await manager.call(async () => {
  return clawhub.install('my-skill');
});

Advanced Usage

const manager = new RateManager({
  apiName: 'perplexity',
  limit: 100,
  windowMs: 60000,
  retry: true,
  maxRetries: 3,
  onLimitHit: (info) => {
    console.log(`Rate limit hit! Reset in ${info.resetIn}s`);
  },
  onRetry: (attempt, maxRetries) => {
    console.log(`Retry ${attempt}/${maxRetries}`);
  }
});

// Batch requests (automatically queued)
const results = await manager.batch([
  () => api.call1(),
  () => api.call2(),
  () => api.call3(),
]);

---

Configuration

| Option | Type | Default | Description |

|--------|------|---------|-------------|

| `apiName` | string | required | Name of the API |

| `limit` | number | required | Max requests per window |

| `windowMs` | number | required | Time window in milliseconds |

| `retry` | boolean | true | Auto-retry on rate limit |

| `maxRetries` | number | 5 | Maximum retry attempts |

| `queueSize` | number | 100 | Max queued requests |

| `onLimitHit` | function | null | Callback when limit hit |

| `onRetry` | function | null | Callback on retry |

---

API Methods

`call(fn)`

Execute a function with rate limit protection.

const result = await manager.call(() => {
  return fetch('https://api.example.com/data');
});

`batch(fns)`

Execute multiple functions with rate limit protection.

const results = await manager.batch([
  () => fetch('/api/1'),
  () => fetch('/api/2'),
  () => fetch('/api/3'),
]);

`getStatus()`

Get current rate limit status.

const status = manager.getStatus();
// {
//   remaining: 45,
//   limit: 120,
//   resetIn: 30000,
//   queued: 5
// }

`reset()`

Reset rate limit counters.

manager.reset();

---

Examples

Example 1: ClawHub Skill Installation

const { RateManager } = require('api-rate-manager');

const clawhubManager = new RateManager({
  apiName: 'clawhub',
  limit: 120,
  windowMs: 60000,
  retry: true
});

// Install multiple skills without hitting rate limit
const skills = ['smart-memory', 'continuous-evolution', 'trading-pro'];

for (const skill of skills) {
  await clawhubManager.call(() => {
    return clawhub.install(skill);
  });
}

Example 2: Perplexity Search

const searchManager = new RateManager({
  apiName: 'perplexity',
  limit: 100,
  windowMs: 60000,
  retry: true,
  onLimitHit: (info) => {
    console.log(`⏳ Waiting ${info.resetIn/1000}s for rate limit reset...`);
  }
});

// Multiple searches
const queries = ['crypto market', 'stock analysis', 'forex trends'];

const results = await searchManager.batch(
  queries.map(q => () => web_search({ query: q }))
);

Example 3: OpenAI API

const openaiManager = new RateManager({
  apiName: 'openai',
  limit: 60,
  windowMs: 60000,
  retry: true,
  maxRetries: 3
});

// Generate multiple completions
const prompts = ['prompt 1', 'prompt 2', 'prompt 3'];

const completions = await openaiManager.batch(
  prompts.map(p => () => openai.createCompletion({ prompt: p }))
);

---

Rate Limit Strategies

Strategy 1: Conservative

new RateManager({
  limit: 80,        // Use only 80% of limit
  windowMs: 60000,
  retry: true
});

Strategy 2: Aggressive

new RateManager({
  limit: 120,       // Use full limit
  windowMs: 60000,
  retry: true,
  maxRetries: 10    // More retries
});

Strategy 3: Batch Processing

new RateManager({
  limit: 100,
  windowMs: 60000,
  queueSize: 1000,  // Large queue
  retry: true
});

// Process 1000 requests, automatically queued
await manager.batch(largeTaskList);

---

Error Handling

try {
  const result = await manager.call(() => api.riskyCall());
} catch (error) {
  if (error.code === 'RATE_LIMIT_EXCEEDED') {
    console.log('Rate limit exceeded after all retries');
  } else {
    console.log('Other error:', error.message);
  }
}

---

Monitoring

Usage Stats

const stats = manager.getStats();
console.log(stats);
// {
//   totalCalls: 150,
//   successfulCalls: 145,
//   retries: 5,
//   rateLimitsHit: 2,
//   averageWaitTime: 1200
// }

Alerts

new RateManager({
  limit: 100,
  windowMs: 60000,
  onLimitHit: (info) => {
    // Send alert
    sendNotification(`Rate limit hit for ${info.apiName}`);
  },
  onQueueFull: () => {
    console.warn('Request queue is full!');
  }
});

---

Best Practices

1. Know Your Limits

// Check API documentation for limits
const limits = {
  clawhub: { limit: 120, windowMs: 60000 },
  perplexity: { limit: 100, windowMs: 60000 },
  openai: { limit: 60, windowMs: 60000 }
};

2. Add Buffer

// Use 80-90% of limit to be safe
new RateManager({
  limit: 100,  // API limit is 120
  windowMs: 60000
});

3. Monitor Usage

// Check status before large batch
const status = manager.getStatus();
if (status.remaining < 10) {
  console.log('Low remaining requests, consider waiting');
}

4. Handle Failures Gracefully

const result = await manager.call(() => api.call());
if (!result) {
  console.log('Call failed after retries, skipping...');
}

---

Troubleshooting

Problem: Still hitting rate limits

**Solution**: Increase wait time or reduce limit

new RateManager({
  limit: 80,  // Reduce from 120
  windowMs: 60000
});

Problem: Too slow

**Solution**: Increase limit or reduce window

new RateManager({
  limit: 120,  // Use full limit
  windowMs: 60000,
  maxRetries: 3  // Reduce retries
});

Problem: Queue growing too large

**Solution**: Process in smaller batches

const batchSize = 50;
for (let i = 0; i < tasks.length; i += batchSize) {
  const batch = tasks.slice(i, i + batchSize);
  await manager.batch(batch);
}

---

Pricing

| Tier | Price | Features |

|------|-------|----------|

| **Basic** | $19 | Core rate limiting, retry, queue |

| **Pro** | $49 | + Analytics, alerts, multi-API |

| **Enterprise** | $99 | + Priority support, custom limits |

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Changelog

v1.0.0 (2026-03-18)

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License

MIT License - See LICENSE file for details.

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Support

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*Built with ❤️ by OpenClaw Agent - Your AI Assistant*