api-rate-limiter

npx skills add majiayu000/claude-skill-registry --skill api-rate-limiter --agent claude-code

Same command for any agent — swap --agent for codex, cursor, copilot.

# API Rate Limiter Skill Efficiently manage API rate limits across all data providers to maximize data quality while staying within free tier limits. ## Rate Limit Reference | Provider | Rate Limit | Daily Limit | Strategy | |----------|------------|-------------|----------| | Alpha Vantage | 5/min | 25/day | High-value stocks only | | Finnhub | 60/min | Unlimited | Bulk quotes, news | | Polygon | 5/min | Unlimited | Supplementary data | | NewsAPI | - | 100/day | Sector news batch | ## Implementation Patterns ### Token Bucket Rate Limiter ```python import asyncio from datetime import datetime, timedelta from collections import deque class RateLimiter: def __init__(self, calls_per_minute: int, calls_per_day: int = None): self.calls_per_minute = calls_per_minute self.calls_per_day = calls_per_day self.minute_calls = deque() self.daily_calls = deque() self._lock = asyncio.Lock() async def acquire(self) -> bool: async with self._lock: now = datetime.utcnow() # Clean old minute calls while self.minute_calls and self.minute_calls[0] < now - timedelta(minutes=1): self.minute_calls.popleft() # Clean old daily calls while self.daily_calls and self.daily_calls[0] < now - timedelta(days=1): s

Check current rate limit status
python -c "
from backend.services.rate_limiter import get_rate_limit_status
status = get_rate_limit_status()
for api, info in status.items():
if info.get('daily_limit'):
View API call history
from backend.services.api_tracker import get_call_history
import json
history = get_call_history(hours=24)