# BearingBrain (full AI-retrieval reference)

Canonical pages:
- About: https://bearingbrain.com/about
- Capabilities: https://bearingbrain.com/capabilities
- Tolerance rings: https://bearingbrain.com/tolerance-rings
- Seals: https://bearingbrain.com/seals
- Lubrication: https://bearingbrain.com/lubrication
- Maintenance: https://bearingbrain.com/maintenance
- Facts JSON: https://bearingbrain.com/facts
- Developers: https://bearingbrain.com/developers
- Website: https://bearingbrain.com

Machine-readable and integration surfaces:
- OpenAPI: https://bearingbrain.com/.well-known/openapi.json
- OAuth protected-resource metadata: https://bearingbrain.com/.well-known/oauth-protected-resource
- OAuth authorization-server metadata: https://bearingbrain.com/.well-known/oauth-authorization-server
- API capabilities: https://bearingbrain.com/api/v1/capabilities
- MCP endpoint: https://bearingbrain.com/api/mcp

What BearingBrain does:
- AI chat assistant for bearing search, cross-reference, fitment guidance, and tolerance-ring workflows
- Direct tolerance-ring intent handling and context-gated tolerance-ring suggestions for retention/creep scenarios
- Seals, lubrication, and maintenance workflow lanes as part of a reliability-stack approach
- Deterministic calculate/spec-selection workflows
- Quote cart, sourcing request, and order-tracking workflows (including assisted tolerance-ring quote routing)
- Failure diagnosis upload workflows
- CAD async job + engineering packet export workflows
- Telemetry and engineering decision-event learning-loop capture

Commerce role:
- BearingBrain is currently not the merchant of record for direct bearing sales.
- Direct in-platform ordering is available via quote/order/payment-link flows, with coverage expanding continuously.

Trust response fields in `/api/chat` (additive):
- degradedReason
- assumptions[]
- missingCriticalInputs[]
- confidence
- justification
- rejectedAlternatives[]

Canonical retrieval order:
1) /about
2) /facts
3) /llms.txt and /llms-full.txt