> For the complete documentation index, see [llms.txt](https://docs.fastn.ai/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.fastn.ai/build.md). # Build - [Build](https://docs.fastn.ai/build/build.md): Everything that defines how an integration behaves. - [Agent](https://docs.fastn.ai/build/agent.md): The chat-driven builder that picks connectors, drafts workflows and shows you the diff. - [Approval mode](https://docs.fastn.ai/build/agent/approval-mode.md): How far the agent goes without checking in: Auto versus Manual. - [Worked example](https://docs.fastn.ai/build/agent/worked-example.md): A real HubSpot-to-Google-Sheets build, from plain-words prompt to bound trigger. - [Building from your AI agent](https://docs.fastn.ai/build/building-from-your-ai-agent.md): What your own AI agent does after you ask it for an integration, where the result lands in fastn, and how to test it. - [Connectors](https://docs.fastn.ai/build/connectors.md): What a connector is, how it relates to actions, auth methods, connections and webhooks, and where each part lives in the app. - [The catalogue](https://docs.fastn.ai/build/connectors/the-catalogue.md): The Connectors page: header buttons, categories, search, filters, connector cards and the guide panel. - [Creating a connector](https://docs.fastn.ai/build/connectors/creating-a-connector.md): The Create a connector dialog field by field: identity, protocol, visibility and every authentication type, plus Request connector. - [Inside a connector](https://docs.fastn.ai/build/connectors/inside-a-connector.md): The connector detail page: the connector rail, the header, and the Overview, Connections and Version pins tabs. - [Auth methods and providers](https://docs.fastn.ai/build/connectors/auth-methods.md): The Auth tab: a connector's authentication methods, the default method, and the OAuth apps (auth providers) behind them. - [Actions](https://docs.fastn.ai/build/connectors/action-detail.md): A connector's actions: the action list, the action editor and its seven tabs, mocks, versions and proposing an update. - [Webhook config](https://docs.fastn.ai/build/connectors/webhook-config.md): The Webhook config tab: how fastn subscribes to an app's events for each customer, the config table, and every field of the config form. - [Editing, publishing and deleting](https://docs.fastn.ai/build/connectors/editing-and-deleting.md): What you can change on a connector your workspace owns: editing it, credential verification, adding actions, publishing versions and deleting it. - [Importing and exporting](https://docs.fastn.ai/build/connectors/importing-and-exporting.md): Moving connectors and actions in and out of a workspace as JSON files: Import, exporting actions and exporting connectors. - [Connect a system](https://docs.fastn.ai/build/connectors/connect-a-system.md): Making a connection step by step: open the connect dialog, choose the auth method, give the credential, and check that it worked. - [Unified APIs](https://docs.fastn.ai/build/unified-apis.md): One canonical endpoint per business entity, served by whichever providers your customers connect. - [Setup and Usage](https://docs.fastn.ai/build/unified-apis/setup-and-usage.md): Set up a Unified API in Fastn, copy its request, authenticate with your admin API key, and run it against your customers' connections. - [Inside a category](https://docs.fastn.ai/build/unified-apis/inside-a-category.md): Opening a category: entities, connection state, providers and endpoints. - [Unified vs direct](https://docs.fastn.ai/build/unified-apis/unified-vs-direct.md): When to reach for a unified API and when to call the connector directly. - [Connections](https://docs.fastn.ai/build/connections.md): The Connections page: your organisation's and your customers' signed-in accounts, how to find one, and what each column means. - [Statuses](https://docs.fastn.ai/build/connections/statuses.md): What Active, Inactive, Expired and Failed mean, and what to do about each. - [Auth types](https://docs.fastn.ai/build/connections/auth-types.md): The values in the Auth column and on a connection's detail page, and what each one means for keeping the connection working. - [Inside a connection](https://docs.fastn.ai/build/connections/inside-a-connection.md): The connection detail page: who and what the connection is, its token and activity, Reconnect, and Disconnect. - [Creating a connection](https://docs.fastn.ai/build/connections/creating-a-connection.md): Making a connection yourself with New connection: the system picker, key-based methods, OAuth with providers and scopes, and when to use it. - [Workflows](https://docs.fastn.ai/build/workflows.md): The code that runs on a trigger, a schedule, or an agent call. - [The editor](https://docs.fastn.ai/build/workflows/the-editor.md): The workflow editor walked through tab by tab, plus the configuration panel reference. - [The tabs](https://docs.fastn.ai/build/workflows/the-tabs.md): Every tool tab in the editor: Test, Connectors, Contract, Diagram, Test cases, Executions, Sync reports, API and Docs. - [Lifecycle](https://docs.fastn.ai/build/workflows/lifecycle.md): How a workflow goes from draft to deployed, review gates, and code-off workspaces. - [Triggers](https://docs.fastn.ai/build/triggers.md): What starts a workflow: an inbound webhook, a schedule, or an event from a connected system. - [Webhook triggers](https://docs.fastn.ai/build/triggers/webhooks.md): A trigger that fires when another system calls a URL you give it. - [Schedule triggers](https://docs.fastn.ai/build/triggers/schedulers.md): A trigger that fires on a clock you set. - [App event triggers](https://docs.fastn.ai/build/triggers/app-events.md): A trigger that fires when something changes in a connected system. - [Pending updates](https://docs.fastn.ai/build/connector-updates.md): Vendor changes to the integrations you use, and the fixes proposed for them. Nothing is applied until you accept it. - [MCP gateway](https://docs.fastn.ai/build/mcp-gateway.md): Letting an AI client reach your connectors as tools. - [Claude](https://docs.fastn.ai/build/mcp-gateway/claude.md): Add fastn to Claude as a custom connector, then build integrations from a Claude chat. - [ChatGPT](https://docs.fastn.ai/build/mcp-gateway/chatgpt.md): Add fastn to ChatGPT as a custom connector in Developer mode, then build integrations from a chat. - [Lovable](https://docs.fastn.ai/build/mcp-gateway/lovable.md): Add fastn to Lovable as a chat connector, so the builder chat can use your fastn tools. - [Bolt](https://docs.fastn.ai/build/mcp-gateway/bolt.md): Add fastn to bolt.new as a custom MCP connector, then build integrations from a chat. - [Common patterns](https://docs.fastn.ai/build/patterns.md): The handful of workflow shapes that come up again and again. --- # Agent Instructions This documentation is published with GitBook. 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