> ## 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.

# Trello

## 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 (OAuth) | ✅      |
    | Credentials auto-refresh        | ✅      |
    | Auth parameters validation      | ✅      |
    | Pre-built authorization UI      | ✅      |
    | Custom authorization UI         | ✅      |
    | Expired credentials detection   | ✅      |
  </Accordion>

  <Accordion title="✅ Read & write data">
    | Tools                                     | Status                         |
    | ----------------------------------------- | ------------------------------ |
    | Pre-built integrations                    | ✅                              |
    | 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>

### Others

| Function name   | Description                                                          | Type                                           | Source code                                                                                                        |
| --------------- | -------------------------------------------------------------------- | ---------------------------------------------- | ------------------------------------------------------------------------------------------------------------------ |
| `actions`       | Sync activity actions (audit log) for Trello boards.                 | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/trello/syncs/actions.ts)       |
| `attachments`   | Sync attachments from Trello cards.                                  | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/trello/syncs/attachments.ts)   |
| `boards`        | Sync boards from Trello.                                             | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/trello/syncs/boards.ts)        |
| `cards`         | Sync cards from Trello boards                                        | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/trello/syncs/cards.ts)         |
| `checklists`    | Sync checklists (with their items) from Trello cards                 | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/trello/syncs/checklists.ts)    |
| `custom-fields` | Sync custom field definitions from Trello boards                     | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/trello/syncs/custom-fields.ts) |
| `labels`        | Sync labels from Trello boards.                                      | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/trello/syncs/labels.ts)        |
| `lists`         | Sync lists from Trello boards                                        | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/trello/syncs/lists.ts)         |
| `members`       | Sync members from Trello boards.                                     | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/trello/syncs/members.ts)       |
| `organizations` | Sync organizations (workspaces) the authenticated member belongs to. | [Sync](/guides/functions/syncs/sync-functions) | [🔗 Github](https://github.com/NangoHQ/integration-templates/blob/main/integrations/trello/syncs/organizations.ts) |

## 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/trello.mdx)</Note>

## Useful links

* [How to register an Application](https://developer.atlassian.com/cloud/trello/guides/rest-api/authorization/#introduction)
* [OAuth-related docs](https://developer.atlassian.com/cloud/trello/guides/rest-api/authorization/)
* [API](https://developer.atlassian.com/cloud/trello/guides/rest-api/api-introduction/)
* [Web API docs (their REST API)](https://developer.atlassian.com/cloud/trello/rest/api-group-actions/#api-group-actions)
* [SCIM API Docs](https://developer.atlassian.com/cloud/trello/scim/routes/)

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

## API gotchas

* Scopes is either `read`, `write`, `account`.

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

<Card title="Connect to trello-scim" icon="link" href="/integrations/all/trello-scim/connect" horizontal>
  Guide to connect to trello-scim using Nango Connect.
</Card>