API Rate Limit Calculator

API Rate Limit Calculator MCP Connector for Claude

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Predict API exhaustion and simulate traffic-shaping algorithms.

4 tools Official Updated Oct 1, 2026 Official Vinkius Partner

The API Rate Limit Calculator provides mathematical clarity for managing API quotas. It allows developers to forecast when a quota will be exhausted using project_remaining_capacity, simulate the behavior of Token Bucket or Leaky Bucket algorithms with simulate_token_mechanics, determine necessary request spacing via calculate_request_interval, and plan batch jobs by predicting window boundaries with estimate_next_reset.

rate-limitingapitoken-bucketleaky-buckettraffic-shaping

4 tools expose this connector's capabilities to your AI agent.

estimate_next_reset

Predicts the exact time when a sliding window or fixed window boundary will occur

simulate_token_mechanics

Simulates the state of a Token Bucket or Leaky Bucket

project_remaining_capacity

Forecasts how many requests can still be performed before the quota is exhausted

calculate_request_interval

Determines the minimum time gap required between requests

See how to talk to your AI agent using API Rate Limit Calculator.

I have a limit of 1000 requests per hour, and I've used 850 so far. How many are left?

You have 150 requests remaining in your current window.

If my bucket capacity is 50 and refills at 2 tokens per second, can I handle a burst of 10 requests after 5 seconds since the last check?

Yes, the burst is allowed. After 5 seconds, your bucket will have 10 tokens added (up to capacity), and a burst of 10 will leave you with 0 tokens remaining.

What is the minimum interval I should use for 5000 requests in a 3600 second window?

The minimum required interval between requests is 0.72 seconds.

Use the `project_remaining_capacity` tool by providing your total limit, current usage, and window duration.

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