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

# 3rd party agents

> Third-party AI agents that connect with Plain, including Parahelp, Duckie AI, Decimal AI and Inkeep to integrate with Plain to automate customer support.

Plain integrates with several third-party AI agent providers that can automatically resolve customer support threads on your behalf. These agents connect to Plain as machine users, listen for incoming threads via [webhooks,](/docs/webhooks) and respond using your existing knowledge sources and tools.

See our [**Integration Guide**](/docs/agents/bring-your-own-agent) for a complete guide to the integration architecture.

Below is a summary of our partners:

## [Decimal](/docs/product/agents/third-party/decimal)

Decimal traces customer questions directly to relevant source code, configuration files, and release notes to generate accurate answers. Its self-healing knowledge base automatically updates as your product changes.

## [Duckie](/docs/product/agents/third-party/duckie)

Duckie brings agents that connect to 20+ tools your team already uses, including Slack, Notion, Jira, and your codebase. It can act as either an autonomous agent or a copilot.

## [Parahelp](/docs/product/agents/third-party/parahelp)

Parahelp lets you define custom procedures so its agent can act for a customer: look up subscription details, process a refund, or file a bug. It connects to tools such as Stripe, Slack, and Linear alongside your documentation.

## [Inkeep](/docs/product/agents/third-party/inkeep)

Inkeep provides **Keep**, a support copilot. Keep's Smart Assist mode analyzes the thread you're viewing and generates context-aware suggestions, including draft answers, relevant doc links, thread summaries, and follow-up to-dos.

Keep is fully conversational, so you can ask it to refine or expand its responses.

## Building your own agent

If you'd prefer to build a custom integration, Plain's API supports bringing your own agent. You can set up machine users, subscribe to webhooks, manage agent status, and handle the full reply-and-handoff flow yourself.