Use Cursor to investigate an API integration

Prepare useful project context

Start with the code path that will consume the API, an existing integration example, and the relevant documentation. Explain the requested outcome and the constraints that matter: supported runtime, error conventions, authentication boundary, and expected response shape.

Cursor’s rules documentation describes persistent instructions at the prompt level, including project rules scoped to a codebase. Use that mechanism to preserve stable conventions. Keep changing task details in the current request so long-lived instructions do not become a history of abandoned experiments.

Ask for a bounded change

A focused task might be “add a client method for this read operation and use the project’s existing error type.” Supply the authoritative reference and identify the files most likely to matter. Ask the coding assistant to surface undocumented assumptions before those assumptions spread through the implementation.

• Contract: The endpoint, method, parameters, and response fields.
• Architecture: The existing client wrapper and configuration pattern.
• Boundaries: Secrets, generated files, and unrelated code that must be treated carefully.
• Verification: The meaningful check that demonstrates the requested behavior.

Review the proposed diff as an engineering change. Check new dependencies, error handling, optional fields, and whether private credentials could reach a public bundle. Fluent explanations are useful context, but the code and its behavior are the evidence.

Preserve what the next developer needs

Store a concise integration note near the code: source documentation, supported operation, required configuration, and known limitations. If the official API changes, the next developer should know which assumptions to revisit.

Keep rules short and specific enough to apply. A rule that points to a maintained client example can be easier to keep accurate than a long copied reference. Revisit it when the project’s architecture changes.

Use the editor to inspect call sites, trace types, and review the result in context. An API integration is complete when it fits the application’s real workflow, including failures and maintenance.

The IDE exploration guide covers navigation and debugging across development environments. Read MCP fundamentals when considering connections that expose additional tools or project context.