How to build API integrations without a sandbox or test account

Nango's experience in building and maintaining API integration support for over 700 providers has led them to identify strategies for developers who need to ship integrations without access to clean API sandboxes or developer accounts. APIs generally fall into two categories: developer-friendly, which offer free sandboxes or accounts, and enterprise-gated, which restrict access to paying customers and certified partners. Strategies for overcoming access barriers include obtaining free developer accounts, negotiating directly with providers, partnering with consultants or existing customers, building from documentation, and testing beta versions with initial customers. Nango supports these efforts with its open-source integration platform, providing pre-built authentication, durable syncs, and reusable integration templates to reduce infrastructure risks. The platform also leverages AI coding agents to accelerate integration development by generating production-ready code and handling complex infrastructure tasks, allowing developers to focus on business logic rather than API-specific challenges.

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