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API Request Planner

Plan API demand before release by listing endpoints, expected users, action frequency, cache rate, and limits.

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Launch readiness

Ready to test

Status

Endpoints 3 · Highest limit usage 16.7%

Monthly calls

14,438,400

Origin calls

6,326,400

Total peak RPS

38.81 RPS

Highest limit usage

16.7%

Quick examples

Pick a service type to fill realistic sample endpoints and traffic assumptions.

Peak calls/min

2,329

Suggested limit/min

3,144

Headroom left

83.3%

Calls saved by cache

8,112,000

Endpoint plan

Add each API endpoint as a row. The planner calculates monthly calls, origin calls, peak RPS, rate-limit usage, and what to check first.

Monthly

12,480,000

Origin

4,368,000

Peak RPS

33.33

Limit usage

16.7%

Next stepMonitor after launch

Monthly

1,536,000

Origin

1,536,000

Peak RPS

3.7

Limit usage

7.4%

Next stepReview retries and idempotency

Monthly

422,400

Origin

422,400

Peak RPS

1.78

Limit usage

11.9%

Next stepReview retries and idempotency

Limit usage

POST /api/orders11.9%
POST /api/cart/items7.4%
GET /api/products16.7%

Pre-launch checklist

Minimum checks before load testing.

  • Confirm provider limits per minute and per second.
  • Separate cacheable read APIs from write, order, or payment APIs.
  • Add idempotency keys to important write APIs.
  • Use retry caps and exponential backoff.
  • Set alerts around 70-80% of expected peak usage.

How to use the API request plan

Total traffic is useful, but launch risk usually hides in one or two endpoints. This planner ranks APIs by peak usage, priority, cache behavior, and write risk so the team knows what to cache, throttle, batch, or review first.

Usage notes

  • Monthly calls = users x daily actions per user x calls per action x active days.
  • Origin calls = monthly calls x (1 - cache hit rate).
  • Peak RPS = monthly calls / active seconds x peak multiplier.
  • Limit usage = peak RPS / allowed RPS.

Frequently asked questions

Is this the same as an API cost estimator?expand_more

No. This planner focuses on endpoint capacity, bottlenecks, owners, and launch readiness. Use it before cost work or load testing.

What should I put in peak multiplier?expand_more

Use 3-5x for normal apps and 6-10x for launches, campaigns, notifications, or traffic concentrated in work hours.

Why include cache rate?expand_more

Cache rate separates total gateway traffic from origin load. A GET endpoint with high volume may become safe once cached well.

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