- Home
- Knowledge base software
- Stack Internal
Stack Internal
What it is
Stack Internal is a cloud knowledge product for people, teams, and AI agents. It automatically captures and synthesizes information from AI tools, chat threads, and wikis into knowledge units. Those units can include authorship, recency, usage, provenance, and conflict-detection signals. Teams organize content 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 supports other tools. An 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, with 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 do not roll over. Organization pricing is based on needed Knowledge Flow Credits and requires contacting sales. The security page lists ISO 27001/27701, SOC 2 Type II, SSO and SCIM provisioning, and GDPR & SCC.
For and against
For
- Automatically captures and synthesizes information from multiple sources
- Knowledge units can include provenance and conflict signals
- Permissions can be set for people, teams, and agents
- Free plan supports up to 50 teammates
Against
- Starter is limited to three collaborators
- Starter includes up to 1,000 credits per month
- Unused Starter credits do not roll over
- Organization pricing requires contacting sales
The verdict
Stack Internal brings captured knowledge together with permissions and signals about its source and use.
Who it suits
Stack Internal may suit enterprises seeking to organize knowledge for employees and AI agents, with permissions and source signals. The listed connectors and ingestion API may also fit teams bringing information together from several tools.
Plans and prices
Free
Up to 50 teammates
Read 23 Sep 2026 · stackoverflow.co
Starter
Up to 1,000 credits/month · Up to 3 collaborators · 4 connectors and custom ingestion API · Unlimited reads
Read 15 Oct 2026 · stackoverflow.co
Organization
Customized credits/month · Unlimited collaborators · Unlimited reads and additions · Custom roles and permissions
Read 15 Oct 2026 · stackoverflow.co
On the record
- AI access
- Its MCP server connects AI assistants and coding agents, including Claude and Cursor, to Stack Internal knowledge.stackoverflow.co · read 8 Oct 2026
- AI model
- Stack Internal states that it uses Azure OpenAI GPT-4o mini for its AI functionality.stackoverflow.co · read 15 Oct 2026
- AI training
- The maker says it does not use customer data for model training.stackoverflow.co · read 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.support.stackenterprise.co · read 15 Oct 2026
- API capabilities
- Stack Internal APIs support sign-in, ingestion, search, chat, administration, reporting, reads and writes.support.stackinternal.com · read 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.support.stackenterprise.co · read 15 Oct 2026
- Capture
- It automatically captures and synthesizes data from AI tools, chat threads, and wikis into units of knowledge.stackoverflow.co · read 8 Oct 2026
- Community API
- Stack Internal Community API v3 is available at each customer site with interactive Swagger documentation and downloadable endpoint definitions.support.stackenterprise.co · read 15 Oct 2026
- Company founded
- Stack Overflow was co-founded by Jeff Atwood and Joel Spolsky in 2008.crunchbase.com · read 15 Oct 2026
- Company headquarters and size
- LinkedIn lists New York, New York headquarters and a 201–500 employee company size.uk.linkedin.com · read 15 Oct 2026
- Company legal name
- Crunchbase identifies the legal entity as Stack Exchange Inc.crunchbase.com · read 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.stackoverflow.co · read 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.stackoverflow.co · read 15 Oct 2026
- Documentation and setup
- The administrator quickstart covers SSO, content-source configuration, Slack and Google Docs connections, MCP activation and API guidance.support.stackinternal.com · read 15 Oct 2026
- Encryption
- The security FAQ says data is encrypted in transit and at rest, and Azure data at rest uses AES-256.stackoverflow.co · read 8 Oct 2026
- Governance
- Administrators can manage permissions, curation activity and audit logs for people, teams and AI agents.stackoverflow.co · read 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.stackoverflow.co · read 15 Oct 2026
- Integrations
- Listed integrations include ChatGPT, Claude Code, Confluence, Cursor, Gemini, GitHub, Jira, Notion, OpenAI, ServiceNow, Slack, Microsoft Teams and Google Docs.stackoverflow.co · read 15 Oct 2026
