# Development Portal | Outreach > Outreach extensibility development and documentation portal ## Table of contents - [Application lifecycle webhooks - Development Portal | Outreach](https://developers.outreach.io/client-extensions/app-lifecycle-webhooks.md) - [Custom Objects Via API - Development Portal | Outreach](https://developers.outreach.io/api/custom-objects.md) - [Getting started - Development Portal | Outreach](https://developers.outreach.io/api/getting-started.md) - [Deprecated features - Development Portal | Outreach](https://developers.outreach.io/api/deprecated-features.md) - [API access - Development Portal | Outreach](https://developers.outreach.io/api/oauth.md) - [Accessing Outreach REST API from server - Development Portal | Outreach](https://developers.outreach.io/api/s2s-access.md) - [Custom events in the prospect activity feed - Development Portal | Outreach](https://developers.outreach.io/client-extensions/activity-feed-custom-events.md) - [App homepage - Development Portal | Outreach](https://developers.outreach.io/client-extensions/app-homepage.md) - [App installation settings - Development Portal | Outreach](https://developers.outreach.io/client-extensions/app-installation-settings.md) - [Outreach client extensions - Development Portal | Outreach](https://developers.outreach.io/client-extensions.md) - [JavaScript SDK - Development Portal | Outreach](https://developers.outreach.io/client-extensions/javascript-sdk.md) - [Local Development - Development Portal | Outreach](https://developers.outreach.io/client-extensions/local-development.md) - [Mailing links custom tracker - Development Portal | Outreach](https://developers.outreach.io/client-extensions/mailing-links-custom-tracker.md) - [Bulk API - Development Portal | Outreach](https://developers.outreach.io/api/bulk-api.md) - [Common API patterns - Development Portal | Outreach](https://developers.outreach.io/api/common-patterns.md) - [Outreach REST API - Development Portal | Outreach](https://developers.outreach.io/api.md) - [Making API requests - Development Portal | Outreach](https://developers.outreach.io/api/making-requests.md) - [Webhooks - Development Portal | Outreach](https://developers.outreach.io/api/webhooks.md) - [Text editor extension - Development Portal | Outreach](https://developers.outreach.io/client-extensions/text-editor-extension.md) - [Web widget extensions - Development Portal | Outreach](https://developers.outreach.io/client-extensions/web-widget-extensions.md) - [Your first web widget - Development Portal | Outreach](https://developers.outreach.io/client-extensions/your-first-outreach-extension.md) - [Best Practices](https://developers.outreach.io/data-sharing/best-practices.md) - [Common Queries](https://developers.outreach.io/data-sharing/common-queries.md) - [Data Dictionary](https://developers.outreach.io/data-sharing/data-dictionary.md) - [Outreach Data Sharing with Delta Sharing - Development Portal | Outreach](https://developers.outreach.io/data-sharing/delta-sharing.md) - [Outreach Data Sharing - Development Portal | Outreach](https://developers.outreach.io/data-sharing.md) - [Example Use Cases](https://developers.outreach.io/data-sharing/example-uses-cases.md) - [Release Notes](https://developers.outreach.io/data-sharing/release-notes.md) - [Outreach Data Sharing with Snowflake - Development Portal | Outreach](https://developers.outreach.io/data-sharing/snowflake.md) - [Extend Outreach - Development Portal | Outreach](https://developers.outreach.io/guides.md) - [Managing apps - Development Portal | Outreach](https://developers.outreach.io/guides/managing-apps.md) - [What is an Outreach app? - Development Portal | Outreach](https://developers.outreach.io/guides/outreach-app.md) - [10/10/25 - Security Advisory on Developer Portal](https://developers.outreach.io/guides/warning.md) - [Authentication - Outreach MCP | Outreach](https://developers.outreach.io/mcp-server/authentication.md) - [Best Practices - Outreach MCP | Outreach](https://developers.outreach.io/mcp-server/best-practices.md) - [Outreach MCP Server - Development Portal | Outreach](https://developers.outreach.io/mcp-server.md) - [Sample Interactions - Outreach MCP | Outreach](https://developers.outreach.io/mcp-server/sample-interactions.md) - [Tool Annotations - Outreach MCP | Outreach](https://developers.outreach.io/mcp-server/tool-annotations.md) - [Tool Catalog - Outreach MCP | Outreach](https://developers.outreach.io/mcp-server/tool-catalog.md) - [Tool Responses - Outreach MCP | Outreach](https://developers.outreach.io/mcp-server/tool-responses.md) - [Usage Guide - Outreach MCP | Outreach](https://developers.outreach.io/mcp-server/usage-guide.md) - [Accounts](https://developers.outreach.io/data-sharing/data-dictionary-v1/accounts.md) - [Calendars](https://developers.outreach.io/data-sharing/data-dictionary-v1/calendars.md) - [Call Dispositions](https://developers.outreach.io/data-sharing/data-dictionary-v1/call-dispositions.md) - [Call Purposes](https://developers.outreach.io/data-sharing/data-dictionary-v1/call-purposes.md) - [Calls](https://developers.outreach.io/data-sharing/data-dictionary-v1/calls.md) - [Content Categories](https://developers.outreach.io/data-sharing/data-dictionary-v1/content-categories.md) - [Content Category Memberships](https://developers.outreach.io/data-sharing/data-dictionary-v1/content-category-memberships.md) - [Content Category Ownerships](https://developers.outreach.io/data-sharing/data-dictionary-v1/content-category-ownerships.md) - [Email Message Participant](https://developers.outreach.io/data-sharing/data-dictionary-v1/email-message-participant.md) - [Email Message Synced Event](https://developers.outreach.io/data-sharing/data-dictionary-v1/email-message-synced-event.md) - [Email Message](https://developers.outreach.io/data-sharing/data-dictionary-v1/email-message.md) - [Email Sentiment](https://developers.outreach.io/data-sharing/data-dictionary-v1/email-sentiment.md) - [Forecast Calls](https://developers.outreach.io/data-sharing/data-dictionary-v1/forecast-calls.md) - [Forecast Configs](https://developers.outreach.io/data-sharing/data-dictionary-v1/forecast-configs.md) - [Forecasts](https://developers.outreach.io/data-sharing/data-dictionary-v1/forecasts.md) - [Funnel Insights Prospects](https://developers.outreach.io/data-sharing/data-dictionary-v1/funnel-insights-prospects.md) - [Funnel Insights](https://developers.outreach.io/data-sharing/data-dictionary-v1/funnel-insights.md) - [Kaia Coach Cards Activity](https://developers.outreach.io/data-sharing/data-dictionary-v1/kaia-coach-cards-activity.md) - [Kaia Content Cards Activity](https://developers.outreach.io/data-sharing/data-dictionary-v1/kaia-content-cards-activity.md) - [Kaia Highlights Activity](https://developers.outreach.io/data-sharing/data-dictionary-v1/kaia-highlights-activity.md) - [Kaia Meeting Participants](https://developers.outreach.io/data-sharing/data-dictionary-v1/kaia-meeting-participants.md) - [Kaia Meeting Reactions](https://developers.outreach.io/data-sharing/data-dictionary-v1/kaia-meeting-reactions.md) - [Kaia Meeting Topics](https://developers.outreach.io/data-sharing/data-dictionary-v1/kaia-meeting-topics.md) - [Kaia Meetings](https://developers.outreach.io/data-sharing/data-dictionary-v1/kaia-meetings.md) - [Kaia Recordings Viewed](https://developers.outreach.io/data-sharing/data-dictionary-v1/kaia-recordings-viewed.md) - [Mailboxes](https://developers.outreach.io/data-sharing/data-dictionary-v1/mailboxes.md) - [Mailings](https://developers.outreach.io/data-sharing/data-dictionary-v1/mailings.md) - [Meeting Types](https://developers.outreach.io/data-sharing/data-dictionary-v1/meeting-types.md) - [Meeting Attendees](https://developers.outreach.io/data-sharing/data-dictionary-v1/meeting_attendees.md) - [Meeting Attributions](https://developers.outreach.io/data-sharing/data-dictionary-v1/meeting_attributions.md) - [Meetings](https://developers.outreach.io/data-sharing/data-dictionary-v1/meetings.md) - [Notes](https://developers.outreach.io/data-sharing/data-dictionary-v1/notes.md) - [Opportunities Prospect Roles](https://developers.outreach.io/data-sharing/data-dictionary-v1/opportunities-prospect-roles.md) - [Opportunities](https://developers.outreach.io/data-sharing/data-dictionary-v1/opportunities.md) - [Opportunity Stages](https://developers.outreach.io/data-sharing/data-dictionary-v1/opportunity-stages.md) - [Orgs](https://developers.outreach.io/data-sharing/data-dictionary-v1/orgs.md) - [Personas](https://developers.outreach.io/data-sharing/data-dictionary-v1/personas.md) - [Phone Numbers](https://developers.outreach.io/data-sharing/data-dictionary-v1/phone-numbers.md) - [Plugin Mappings](https://developers.outreach.io/data-sharing/data-dictionary-v1/plugin-mappings.md) - [Profiles](https://developers.outreach.io/data-sharing/data-dictionary-v1/profiles.md) - [Prospect Email Addresses](https://developers.outreach.io/data-sharing/data-dictionary-v1/prospect-email-addresses.md) - [Prospects](https://developers.outreach.io/data-sharing/data-dictionary-v1/prospects.md) - [Record Actor Assignments](https://developers.outreach.io/data-sharing/data-dictionary-v1/record-actor-assignments.md) - [Roles](https://developers.outreach.io/data-sharing/data-dictionary-v1/roles.md) - [Rulesets](https://developers.outreach.io/data-sharing/data-dictionary-v1/rulesets.md) - [Sequence States](https://developers.outreach.io/data-sharing/data-dictionary-v1/sequence-states.md) - [Sequence Steps](https://developers.outreach.io/data-sharing/data-dictionary-v1/sequence-steps.md) - [Sequence Templates](https://developers.outreach.io/data-sharing/data-dictionary-v1/sequence-templates.md) - [Sequences](https://developers.outreach.io/data-sharing/data-dictionary-v1/sequences.md) - [Snippets](https://developers.outreach.io/data-sharing/data-dictionary-v1/snippets.md) - [Stages](https://developers.outreach.io/data-sharing/data-dictionary-v1/stages.md) - [Tags](https://developers.outreach.io/data-sharing/data-dictionary-v1/tags.md) - [Task Themes](https://developers.outreach.io/data-sharing/data-dictionary-v1/task-themes.md) - [Tasks](https://developers.outreach.io/data-sharing/data-dictionary-v1/tasks.md) - [Team Memberships History](https://developers.outreach.io/data-sharing/data-dictionary-v1/team-memberships-history.md) - [Team Memberships](https://developers.outreach.io/data-sharing/data-dictionary-v1/team-memberships.md) - [Teams](https://developers.outreach.io/data-sharing/data-dictionary-v1/teams.md) - [Templates](https://developers.outreach.io/data-sharing/data-dictionary-v1/templates.md) - [Users](https://developers.outreach.io/data-sharing/data-dictionary-v1/users.md) - [Outreach REST API Reference](https://developers.outreach.io/api/reference.md)