Stack Internal
Stack Internal is a cloud knowledge product that gathers and synthesizes information from AI tools, chat threads, and wikis into knowledge for people, teams,…
What Stack Internal is
Stack Internal is a cloud knowledge product that gathers and synthesizes information from AI tools, chat threads, and wikis into knowledge for people, teams, and AI agents. Knowledge units can carry authorship, recency, usage, provenance, and conflict signals. Teams organize material into spaces and set permissions for people, teams, and agents. Listed connectors include Google Docs, Slack, Microsoft Teams, and Stack Internal Community; an ingestion API covers other tools. Its MCP server connects AI assistants and coding agents, including Claude and Cursor, to Stack Internal knowledge. AI search or answers and single sign-on are supported. The Free plan is free for up to 50 teammates. Starter is free, billed Free, and includes up to three collaborators, 1,000 credits per month, four connectors and a custom ingestion API, and unlimited ingestion. Starter credits reset each usage period, and unused credits do not roll over. Organization pricing depends on required Knowledge Flow Credits and is available through Contact sales. The security page lists ISO 27001/27701, SOC 2 Type II, SSO and SCIM provisioning, and GDPR & SCC.
Good
- Captures and synthesizes information from several source types.
- Knowledge units include provenance and conflict signals.
- Connectors include Google Docs, Slack, and Microsoft Teams.
- MCP server connects Claude and Cursor.
- Maker says customer data is not used for model training.
Watch out
- Starter includes up to 1,000 credits per month.
- Unused Starter credits do not roll over.
- Organization pricing requires contacting sales.
Who it suits
Stack Internal may suit organizations that need shared knowledge for employees and AI agents, with space-based permissions and listed connectors. Starter is aimed at teams of up to three collaborators; Organization supports unlimited collaborators.
Verdict
Stack Internal combines knowledge capture, permissions, connectors, and access for AI assistants. Review the plan's collaborator and credit limits, particularly because unused Starter credits expire at the end of each usage period.
Plans and prices
From Stack Internal's own pricing page, checked 23 Sep 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Up to 50 teammates |
| Starter | Free | Up to 1,000 credits/month · Up to 3 collaborators · 4 connectors and custom ingestion API · Unlimited reads · Unlimited ingestion · Standard permissions and self-service support |
| Organization | Priced on request | Customized credits/month · Unlimited collaborators · Unlimited reads and additions · Custom roles and permissions · SSO · Audit logs · Dedicated account management · Annual commitment; invoice billing available |
The facts
Each one read from Stack Internal's own pages, with the date it was checked.
What it does
- AI access
- Its MCP server connects AI assistants and coding agents, including Claude and Cursor, to Stack Internal knowledge.checked 8 Oct 2026
- AI model
- Stack Internal states that it uses Azure OpenAI GPT-4o mini for its AI functionality.checked 15 Oct 2026
- AI training
- The maker says it does not use customer data for model training.checked 8 Oct 2026
- API authentication
- Community API v3 uses OAuth tokens, supports read-only and read-write scopes, and offers persistent service applications for integrations.checked 15 Oct 2026
- API capabilities
- Stack Internal APIs support sign-in, ingestion, search, chat, administration, reporting, reads and writes.checked 15 Oct 2026
- API rate limits
- New Community customers after October 1, 2025 receive 500 calls per day per application and 1,000 across applications unless they buy Premium API.checked 15 Oct 2026
- Capture
- It automatically captures and synthesizes data from AI tools, chat threads, and wikis into units of knowledge.checked 8 Oct 2026
- Community API
- Stack Internal Community API v3 is available at each customer site with interactive Swagger documentation and downloadable endpoint definitions.checked 15 Oct 2026
- Credit limits
- Starter includes up to 1,000 credits per month; credits reset each plan usage period and unused credits do not roll over.checked 8 Oct 2026
- Data protection
- The service requires HTTPS, encrypts data in transit and at rest, uses SQL Transparent Data Encryption and AES-256, and says customer data is not used to train models.checked 15 Oct 2026
- Documentation and setup
- The administrator quickstart covers SSO, content-source configuration, Slack and Google Docs connections, MCP activation and API guidance.checked 15 Oct 2026
- Encryption
- The security FAQ says data is encrypted in transit and at rest, and Azure data at rest uses AES-256.checked 8 Oct 2026
- Governance
- Administrators can manage permissions, curation activity and audit logs for people, teams and AI agents.checked 15 Oct 2026
- Hosting model
- Official materials describe Azure-hosted Business and Enterprise cloud options and do not document customer self-hosting or on-premises installation.checked 15 Oct 2026
- Integrations
- Listed integrations include ChatGPT, Claude Code, Confluence, Cursor, Gemini, GitHub, Jira, Notion, OpenAI, ServiceNow, Slack, Microsoft Teams and Google Docs.checked 15 Oct 2026
- Intended users
- The maker describes Stack Internal as a knowledge intelligence ecosystem for enterprises and says it is used by over 20,000 organizations.checked 8 Oct 2026
- Knowledge capture
- It ingests scattered information from AI tools, chats, wikis, files and connected sources into reusable knowledge units.checked 15 Oct 2026
- Knowledge validation
- Each knowledge item carries provenance, authorship, recency, usage and conflict signals, with SME validation routing for gaps.checked 15 Oct 2026
- Limit: long-form documentation
- Reviewers say the Q&A structure is weaker for lengthy formal documentation and that organization becomes difficult as content grows.checked 15 Oct 2026
The company
- Company founded
- Stack Overflow was co-founded by Jeff Atwood and Joel Spolsky in 2008.checked 15 Oct 2026
- Company headquarters and size
- LinkedIn lists New York, New York headquarters and a 201–500 employee company size.checked 15 Oct 2026
- Company legal name
- Crunchbase identifies the legal entity as Stack Exchange Inc.checked 15 Oct 2026
- Limit: adoption and small teams
- TrustRadius reviewers say small organizations may lack enough activity to justify the product and that daily adoption can be difficult.checked 15 Oct 2026
Money
- Free plan
- Yeschecked 23 Sep 2026
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