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From api-rate-limiting
Implements API rate limiting using token bucket, sliding window, Redis algorithms, and Express middleware. Use for securing public APIs, tiered access, and DoS protection.
npx claudepluginhub secondsky/claude-skills --plugin api-rate-limitingHow this skill is triggered — by the user, by Claude, or both
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/api-rate-limiting:api-rate-limitingThe summary Claude sees in its skill listing — used to decide when to auto-load this skill
Protect APIs from abuse using rate limiting algorithms with per-user and per-endpoint strategies.
Controls request throughput with token bucket, sliding window, and fixed window algorithms to protect APIs from abuse, enforce usage quotas, and prevent service overload using Redis.
Implements API rate limiting with sliding windows, token buckets, quotas using Redis and libraries for Node.js, Python/FastAPI, Java. Protects endpoints from excessive requests with headers and 429 responses.
Guides rate limiting implementation using token bucket, sliding window counters, Redis Lua scripts, tiered quotas, middleware, headers, and monitoring to protect APIs from abuse and manage quotas.
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Protect APIs from abuse using rate limiting algorithms with per-user and per-endpoint strategies.
| Algorithm | Pros | Cons |
|---|---|---|
| Token Bucket | Handles bursts, smooth | Memory per user |
| Sliding Window | Accurate | Memory intensive |
| Fixed Window | Simple | Boundary spikes |
class TokenBucket {
constructor(capacity, refillRate) {
this.capacity = capacity;
this.tokens = capacity;
this.refillRate = refillRate; // tokens per second
this.lastRefill = Date.now();
}
consume() {
this.refill();
if (this.tokens >= 1) {
this.tokens--;
return true;
}
return false;
}
refill() {
const now = Date.now();
const elapsed = (now - this.lastRefill) / 1000;
this.tokens = Math.min(this.capacity, this.tokens + elapsed * this.refillRate);
this.lastRefill = now;
}
}
const rateLimit = require('express-rate-limit');
const limiter = rateLimit({
windowMs: 15 * 60 * 1000, // 15 minutes
max: 100,
standardHeaders: true,
message: { error: 'Too many requests, try again later' }
});
app.use('/api/', limiter);
X-RateLimit-Limit: 100
X-RateLimit-Remaining: 45
X-RateLimit-Reset: 1705320000
Retry-After: 60
| Tier | Requests/Hour |
|---|---|
| Free | 100 |
| Pro | 1,000 |
| Enterprise | 10,000 |