1

Create an integration

Sign up for a Nango account (free, no credit card): Try Nango CloudGo to the Integrations tab, click Configure New Integration and select the API to integrate with.APIs have different ways to authorize requests: OAuth, API key, Basic, custom. Nango abstracts away the difficulties of working with each one.
Each API has a dedicated Nango documentation page with useful links, gotchas, etc.
2

Authorize your external account

If you don’t have one already, create a test account for the external system you want to integrate with.On the Nango Connections tab, click Add Test Connection to test the authorization flow. Pick an integration, click Authorize and enter your test account credentials to authorize the API.Once authorized, go to the Connections tab to see the newly created connection. The “Authorization” sub-tab contains the credentials necessary to consume the external API. These credentials are securely stored and automatically refreshed by Nango.
3

Access the external API

Let’s make an API request to the external API.You will need to copy/paste the following values in the code snippet below:
Install Nango’s backend SDK with npm i @nangohq/node. Then run:
import { Nango } from '@nangohq/node';

const nango = new Nango({ secretKey: '<NANGO-SECRET-KEY>' });

const res = await nango.post({
    endpoint: '/external-endpoint',
    providerConfigKey: '<INTEGRATION-ID>',
    connectionId: '<INTEGRATION-ID>',
    data: { "key": "value" }
});

console.log(res.data);
Alternatively, you can fetch credentials from Nango on-the-fly and make API requests without using Nango as a proxy (Node SDK / API)
Congrats 🎉 You can now make authorized requests to the external API! Inspect the Logs tab in Nango for details on the requests you made.
Questions, problems, feedback? Please reach out in the Slack community.