Rate limits & orders
Understand exchange API request budgets, weighted limits, WebSocket recovery, and order reconciliation when responses are delayed or connections fail.
Read the guideMap the exchange API
Exchange API guides for request budgets, market data, and the order lifecycle, with links to the original documentation.
Open calculatorRequestExchangeResponse
4 req/s
Example sustained polling load
Exchange APIs
Change one assumption
Full calculatorExplore four illustrative scenarios. These are calculations, not provider quotes or product rankings.
1 markets
Illustrative cost model
Two requests per market per update. Supplied limit: 10 req/s with 20% reserved.
5 markets
Illustrative cost model
Two requests per market per update. Supplied limit: 10 req/s with 20% reserved.
20 markets
Illustrative cost model
Two requests per market per update. Supplied limit: 10 req/s with 20% reserved.
50 markets
Illustrative cost model
Two requests per market per update. Supplied limit: 10 req/s with 20% reserved.
Start with the mechanics
All guidesAPI request planner
Plan polling volume against a request limit you supply. This simple model does not simulate burst limits or endpoint weights.
Open calculatorCompare the approach
Use a consistent set of criteria, inspect the evidence, and understand the limits before choosing a service or method.
Compare methodsKnow the terminology
Look up the terms used in our guides. Each definition focuses on the distinction that changes how you read a cost or a claim.
Browse glossaryOne idea to keep
Exchange APIs, explained through the details that affect a real decision.
Rate limits & orders
An API response is one observation of exchange state. A dependable integration also handles missing responses, stale data, and reconciliation.
The guide works through the definitions, the arithmetic, and the practical checks. Read the assumptions alongside the example, then use your own inputs in the calculator to see what changes.
Read the full guideWhat we cover
Exchange API guides for request budgets, market data, and the order lifecycle, with links to the original documentation.
Start with the guide for context, use the calculator to work through a scenario, and check the comparison framework before evaluating a product.
- REST
- Use request-and-response endpoints for documented reads and actions.
- WebSockets
- Track sequence rules and reconnect procedures for streaming market data.
- Rate limits
- Budget sustained traffic, weighted requests, bursts, and retries separately.
- Order lifecycle
- Distinguish an acknowledgement from a fill, a cancellation, and a final state.
Evidence before a verdict
A useful comparison makes its assumptions visible.
Our starting library focuses on explainers and transparent calculations. Example amounts illustrate a method. They are not current market prices, verified provider fees, or measured product performance. Where a detail depends on a service, follow the linked primary documentation and confirm the terms that apply to your account and region.
Reviews should say whether a product was tested, which version or date was examined, and which findings came from documentation. A calculator output does not replace that evidence. We do not publish invented ratings, user counts, or profit claims.
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