> ## Documentation Index
> Fetch the complete documentation index at: https://nango.dev/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Grain API Key

## Overview

<CardGroup cols={3}>
  <Card title="Pre-built tooling" icon="screwdriver-wrench" href="#pre-built-tooling" />

  <Card title="Pre-built integrations" icon="square-check" href="#pre-built-integrations" />

  <Card title="Access requirements" icon="triangle-exclamation" href="#access-requirements" />

  <Card title="Setup guide" icon="rocket" href="#setup-guide" />

  <Card title="Useful links" icon="circle-info" href="#useful-links" />

  <Card title="API gotchas" icon="biohazard" href="#api-gotchas" />
</CardGroup>

## Pre-built tooling

<AccordionGroup>
  <Accordion title="✅ Authorization">
    | Tools | Status |
    | - | - |
    | Pre-built authorization (API Key) | ✅ |
    | Pre-built authorization UI | ✅ |
    | Custom authorization UI | ✅ |
    | End-user authorization guide | 🚫 |
    | Expired credentials detection | ✅ |
  </Accordion>

  <Accordion title="✅ Read & write data">
    | Tools | Status |
    | - | - |
    | Pre-built integrations | 🚫 (time to contribute: \<48h) |
    | API unification | ✅ |
    | 2-way sync | ✅ |
    | Webhooks from Nango on data modifications | ✅ |
    | Real-time webhooks from 3rd-party API | 🚫 (time to contribute: \<48h) |
    | Proxy requests | ✅ |
  </Accordion>

  <Accordion title="✅ Observability & data quality">
    | Tools | Status |
    | - | - |
    | HTTP request logging | ✅ |
    | End-to-end type safety | ✅ |
    | Data runtime validation | ✅ |
    | OpenTelemetry export | ✅ |
    | Slack alerts on errors | ✅ |
    | Integration status API | ✅ |
  </Accordion>

  <Accordion title="✅ Customization">
    | Tools | Status |
    | - | - |
    | Create or customize use-cases | ✅ |
    | Pre-configured pagination | 🚫 (time to contribute: \<48h) |
    | Pre-configured rate-limit handling | 🚫 (time to contribute: \<48h) |
    | Per-customer configurations | ✅ |
  </Accordion>
</AccordionGroup>

*No pre-built syncs or actions available yet.*

<Tip>Not seeing the integration you need? [Build your own](/docs/guides/functions/functions-guide) independently.</Tip>

## Access requirements

| Pre-Requisites | Status | Comment |
| - | - | - |
| Paid dev account | ❓ | |
| Paid test account | ❓ | |
| Partnership | ❓ | |
| App review | ❓ | |
| Security audit | ❓ | |

## Setup guide

*No setup guide yet.*

<Tip>Need help getting started? Get help in the [community](https://nango.dev/slack).</Tip>

<Note>Contribute improvements to the setup guide by [editing this page](https://github.com/nangohq/nango/tree/master/docs/integrations/all/grain-api-key.mdx)</Note>

## Useful links

* [Generate Grain Personal Access Token in your Grain account](https://grain.com/app/settings/integrations?tab=api)
* [OAuth related docs](https://grainhq.notion.site/Grain-Public-API-877184aa82b54c77a875083c1b560de9#ab27886a23424857b732e8079c03c5d7)
* [Grain API docs](https://grainhq.notion.site/Grain-Public-API-877184aa82b54c77a875083c1b560de9#d2601dd1162b46f782f4e1f8e5c5ef6b)

<Note>Contribute useful links by [editing this page](https://github.com/nangohq/nango/tree/master/docs/integrations/all/grain-api-key.mdx)</Note>

## API gotchas

* Grain offers both OAuth and API\_KEY authentication modes. For the API\_KEY auth mode, `Authorization: Bearer apiKey` is passed in the request header to access different endpoints, where `apiKey` is your account's personal access token.
* The Grain Public API is still in beta. Developer access is limited to select partners. Please reach out to Grain's support for more questions.

<Note>Contribute API gotchas by [editing this page](https://github.com/nangohq/nango/tree/master/docs/integrations/all/grain-api-key.mdx)</Note>


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