How to Supercharge API Integrations Without Outdated Docs

How to Supercharge API Integrations Without Outdated Docs - Photo by paolo tognoni on Unsplash

Something I really enjoy when I have to implement something new with Cursor is that you can, at any time, add and include documentation from an API. For example, if I’m working with a new API, I can just bring in its docs right into my workspace. Here’s how I do it and why it makes my workflow so much smoother.

Agent Mode vs Edit Mode vs Ask Mode

First, let’s talk about the different modes in Cursor. Right now, I’m in agent mode. You can also be in edit mode if you want. If you’re wondering which mode to use: if the task is complex or needs more reasoning, agent mode is usually better. I actually Googled this myself — “agent vs edit mode cursor” — and here’s what I found:

• Agent mode: Thinks harder, uses reasoning and tools to solve problems.
• Edit mode: For quick, single edits.
• Ask mode: Perfect when you’re not sure how something works or you want to ask questions about your current file.

If you need help understanding your code or figuring out what’s going on, ask mode is your friend. But for me, I like agent mode for these deeper tasks.

Importing API Documentation Directly

Now, the real magic: importing API docs. I’m working with the Bravo API, which is for managing a mailing list. I want Cursor to have the latest Bravo API reference so it can help me accurately.

Here’s how I do it:

1. Go to Settings: In Cursor, open the settings.
2. Find Features: Scroll down to the features section.
3. Docs Section: Here, you can update or add new documentation.
4. Add New Documentation: You can also do this right inside the chat area. Just hit “add new doc” and paste in your API docs URL.

Cursor will fetch and index the new documentation. It’s fast — just a couple of minutes and you’re set. Now, Cursor has the latest docs and can give you accurate answers based on the current API, not some outdated version.

How to Supercharge API Integrations Without Outdated Docs - Photo by Meggyn Pomerleau on Unsplash

Using the Docs in Practice

Once the docs are indexed, I can ask Cursor to check if my API implementation works correctly. For example, I’ll prompt it to ensure that adding a new user to the mailing list works as expected. Cursor reviews my source code and, if everything looks good, it’ll let me know.

What’s cool is that Cursor references the exact chunks of code it checked. You can click to view the relevant lines, which is super helpful for tracking what’s happening.

Iterating and Improving with AI

Sometimes, the first response from Cursor isn’t perfect. That’s normal. I like to challenge the AI by asking it to re-evaluate its answer. Often, it will correct itself or give a more accurate response the second time around. The first response isn’t always the best, but you can nudge it to do better.

For example, Cursor suggested adding a maxRetries parameter when calling the API. If you’ve been an engineer for a while, you know this is a solid practice. APIs can fail, and having retry logic is just good engineering. Cursor even updated the JSDoc and added a retry loop in the code.

Here’s a quick example of what that might look like in TypeScript:

 1async function addToMailingList(user: User, retries = 3) {
 2  let attempt = 0;
 3  while (attempt < retries) {
 4    try {
 5      await bravoApi.addUser(user);
 6      return true;
 7    } catch (error) {
 8      attempt++;
 9      if (attempt === retries) throw error;
10    }
11  }
12}

Why is this useful? Imagine the Bravo API is down or flaky. If the first request fails, retrying might succeed. Cursor even updated the mailing list service to use this logic, which is exactly what you want in production code.

Wrapping Up the Workflow

After making these changes, I commit everything. All the diffs are in the mailing list service. I let Cursor generate a commit message, hit commit, and I’m done. Everything’s neat and tidy.

How to Supercharge API Integrations Without Outdated Docs - Photo by Dmytro Glazunov on Unsplash

I’m pretty happy with how this turned out. Cursor, when paired with up-to-date docs, is a game-changer for API work. You get accurate, current suggestions and can iterate quickly.

Key Takeaways

• Agent mode is best for complex tasks that need reasoning; edit mode is for quick changes; ask mode is for questions and code understanding.
• You can import and update API documentation in Cursor, ensuring the AI uses the latest references.
• Always challenge the AI’s first answer — ask it to re-evaluate for better results.
• Adding retry logic when calling APIs is a best practice and Cursor can help you implement it.
• Cursor references exact code lines, making it easy to track and review changes.

“The first response isn’t always the best, but you can nudge AI to do better.”

“Up-to-date docs mean up-to-date code. Don’t settle for outdated references.”

Smarter API integrations start with smarter tools.