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API integration best practices: reduce cost, errors, and production risk

API integration cost is rarely just the subscription price. The real cost includes engineering time, failed requests, support tickets, unclear documentation, security review, and production incidents.

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Production checklist

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Common error codes

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Keep integration work small

Start with one working request. Copy the request into a small script, inspect the response, then add error handling, retries, logging, and production configuration. This prevents a common failure mode: building a large abstraction before you know the API behavior. For AI APIs, streaming adds one extra check. Confirm that your client handles server-sent events, partial chunks, and completion signals before you expose streaming responses to users.

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FAQ

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How do I reduce API integration cost?

Reduce integration cost by choosing APIs with clear docs, testing online before coding, handling errors early, tracking usage, and avoiding provider-specific assumptions that make future migration expensive.

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What is the fastest way to test an OpenAPI?

Use an online test console after subscribing. Send a minimal request, confirm the response schema, then copy the working request into your application code.

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How should I handle API rate limits?

Read the provider limits, reduce unnecessary concurrency, use backoff for retryable failures, and show user-friendly errors when traffic exceeds the plan limit.

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Next step

For security-specific guidance, read AI API security and privacy checklist.