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API LIMITS · PERFORMANCE · RESILIENCE

Build faster.
Break less.

Throttle gives developers practical tools for understanding API limits, handling failures, measuring performance, and designing applications that keep moving.

Explore the Tools Browse API Limits
Start with: GitHub API Rate limits HTTP 429

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EXPLORE THROTTLE

One problem, one clear resource.

API LimitsPublished limits, quotas, headers, retry behavior, and official sources.Browse APIs → Developer ToolsFocused calculators for capacity, retries, payloads, timeouts, and throughput.Explore tools → BenchmarksControlled tests with fixtures, methods, environments, and limitations.View benchmarks → Engineering GuidesPractical explanations of resilient API design and failure handling.Read guides →

WORK WITH REAL NUMBERS

Developer tools

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Capacity Planning

Rate Limit Calculator

Estimate expected request load, safety-adjusted capacity, remaining headroom, and queue time.

Open tool → Retry Planning

Retry & Backoff Generator

Generate bounded exponential-backoff schedules with Retry-After handling, jitter ranges, cumulative wait time, and code templates.

Open tool → Response Analysis

Rate-Limit Header Decoder

Interpret common and provider-specific rate-limit response headers, reset times, remaining capacity, and Retry-After values locally in your browser.

Open tool → Payload Analysis

Payload Size Analyzer

Measure UTF-8 bytes, JSON minification savings, character counts, and estimated transfer volume locally in your browser.

Open tool →
Local by design

Your inputs stay in your browser.

Throttle calculators perform their work locally and do not send workload values to an API.

SOURCE-BACKED REFERENCES

API limits

Browse API limits →
Verified API limit resources
ServicePrimary limitAuthenticationLast verifiedOpen
GitHub API 5,000 requests per hour for most authenticated users Optional for public resources →
Stripe API 100 requests per second globally in live mode API key or OAuth for Connect →
OpenAI API Varies by model, project, and usage tier API key →
Anthropic API Varies by model and usage tier API key →
Discord API 50 requests per second globally for bots and users Bot token, OAuth, or webhook token →

FEATURED GUIDE · 7 MIN READ

How to Handle HTTP 429 Responses

A practical guide to Retry-After, rate-limit headers, bounded backoff, jitter, queues, and safe retry behavior.

Read the guide
HTTP/1.1 429 Too Many Requests Retry-After: 30 X-RateLimit-Remaining: 0 X-RateLimit-Reset: 1783965600

PLAN BEFORE THE LIMIT

Building around an API limit?

Estimate capacity, add a safety margin, and find out when work needs a queue.

Start with the Rate Limit Calculator