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Find all the guides, resources, and examples you need to successfully integrate with Tesouro.

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Getting started

If you are new to Tesouro, the following guides will help get you up and running quickly.

Connect to Tesouro

Set up your developer account and connect to Tesouro.

Submit your first transaction

Learn how to submit an authorization.

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About our API

Tesouro’s API is built using GraphQL, a developer-friendly query language that enables you to get exactly what you need with a single query.

GraphQL API schema

Explore Tesouro's GraphQL API schema.

Why GraphQL?

Read more about GraphQL and why Tesouro has chosen it over REST

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Resources

This section is for those looking for additional information about Tesouro’s API platform.

Tokenization

Ensure your customers' payment data is protected from criminal activity.

Response codes

All response codes, definitions, and advice to follow for reducing declines.