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Source: https://docs.microblink.com/verify/core-concepts
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# Core API concepts

The API is completely **stateless** and **synchronous**.
You send a request, wait up to a few seconds, and get a response.

The underlying verification service is very configurable, and both the request and response are **designed in a layered way**.
You should be able to use very few options to get a configuration that matches your needs broadly, and then optionally more detailed, lower-level options to fine-tune it.

Similarly, you should be able to look at very few fields in the response to understand the verification result at a high level, and then optionally more detailed, lower-level fields to understand exactly what happened in more detail.



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## Learn more about core concepts

- [Check](./check.md) - The basic building block of verification
- [Use Case](./use-case.md) - A powerful tool for customizing Verify
- [Recommended Outcome](./recommended-outcome.md) - A simple way to interpret the results
- [Match Level](./match-level.md) - The strictness level for a single check
- [Options](./options.md) - More granular control over the verification process


Last updated on Apr 16, 2026