# Stack Internal

> Verified company knowledge for teams and AI agents

Stack Internal, formerly Stack Overflow for Teams, is a knowledge platform from Stack Overflow. It captures what a company knows from tools such as Slack, Microsoft Teams and Google Docs, breaks it into units of knowledge and labels each one with trust signals such as authorship, recency and conflicts. That knowledge reaches people and AI agents through chat, a REST API and an MCP server, alongside the long-standing Q&A, Articles and Collections.

- **Category:** Docs & Wikis
- **Made by:** Stack Exchange Inc.
- **Website:** https://stackoverflow.co/internal/
- **Runs on:** Web
- **Facts last checked:** Oct 6, 2026

## Pricing

Stack Internal has a free plan.

- **Pricing model:** Free plan
- **Free plan:** Starter plan: up to 3 collaborators and 1,000 credits a month, with 4 connectors, the custom ingestion API and the trust engine. It has no SSO, audit logs or health and usage insights.
- **Free trial:** None listed.

| Plan | Price | What you get |
| --- | --- | --- |
| Starter | Free | A workspace for up to 3 collaborators with 1,000 credits a month, 4 connectors, unlimited ingestion, the trust engine and standard permissions. |
| Organization | Custom | Unlimited collaborators and a customized monthly credit allowance, plus SSO, custom roles for people and AI agents, and a usage dashboard. |

Read from https://stackoverflow.co/internal/pricing/ on Oct 6, 2026. Prices change, so confirm with Stack Internal before buying.

## Key features

- **Automatic capture:** Connectors for Slack, Microsoft Teams, Google Docs and Stack Internal Community, plus a custom ingestion API, pull content in and break it into reusable units of knowledge.
- **Trust engine and confidence labels:** Answers carry reviewer, recency and corroboration labels, and conflicting information is flagged, so a reader can tell when knowledge is reliable or needs validating.
- **Expert validation:** Subject-matter experts are detected automatically and can also be managed by hand. Critical gaps trigger a validation workflow routed to them through Slack.
- **Scopes and permissions:** Knowledge is organized into role-based Scopes so that people, teams and AI agents reach only what they should. Custom roles come with the Organization plan.
- **Delivery to people and AI agents:** A chat interface, a REST API and an MCP server bring validated knowledge to people and to assistants and coding agents such as Claude and Cursor.
- **Q&A, Articles and Collections:** The Community features keep Stack Overflow-style Q&A, long-form Articles, custom tags and curated Collections of related content.

## Good for

- Engineering organizations grounding AI agents in their own verified knowledge
- Teams whose answers get buried in Slack or Microsoft Teams threads
- Groups of up to three people trying it on the free Starter plan

## Worth knowing

- Usage is metered in Flow Credits: a search or answer uses 1 credit and an update uses 3. Credits reset each usage period and unused ones do not roll over.
- The free Starter plan allows 3 collaborators and 1,000 credits a month, and leaves out SSO, audit logs and health and usage insights.
- The Organization plan has no published price: it is quoted by sales according to the number of credits needed.
- Connecting a Stack Overflow enterprise Q&A instance requires a Stack Internal Community Enterprise plan.

## Works with

Slack, Microsoft Teams, Google Docs, Claude, Cursor

**Tags:** Wiki, AI search, AI features, Public API

## Alternatives

- [Guru](https://toolgpa.com/tools/guru): Verified company knowledge base with AI search and agents. [Compare](https://toolgpa.com/compare/guru-vs-stack-internal)
- [Tettra](https://toolgpa.com/tools/tettra): Internal knowledge base that answers team questions in Slack. [Compare](https://toolgpa.com/compare/stack-internal-vs-tettra)
- [Slite](https://toolgpa.com/tools/slite): Team knowledge base with doc verification and AI answers. [Compare](https://toolgpa.com/compare/slite-vs-stack-internal)
- [Confluence](https://toolgpa.com/tools/confluence): Team wiki and docs workspace from Atlassian, tied to Jira. [Compare](https://toolgpa.com/compare/confluence-vs-stack-internal)

## Sources

The prices, plans, platforms and features above were read from these pages on Oct 6, 2026:

- https://stackoverflow.co/internal/pricing/
- https://stackoverflow.co/internal/
- https://stackoverflow.co/internal/features/
- https://stackoverflow.co/internal/integrations/

Page: https://toolgpa.com/tools/stack-internal
Listed by ToolGPA (toolgpa.com).