> ## Documentation Index
> Fetch the complete documentation index at: https://handbook.aiql.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Products

> What AiQL builds and sells

AiQL sells applications teams work in, and a platform other products integrate with. Applications sit on the same knowledge layer. The platform exposes that layer as named APIs, SDKs, and embeddable UI.

Self-service SaaS and [custom deployments](/commercial/custom) both host in a [data region](/commercial/data-regions). Custom buyers are assigned a [tenancy tier](/commercial/tiers).

## Applications

<Columns cols={2}>
  <Card title="Studio" icon="pen-ruler" href="/products/studio">
    Where a workspace's knowledge is maintained: sources, ontologies, rules, and related setup.
  </Card>

  <Card title="Observatory" icon="binoculars" href="/products/observatory">
    Where teams reason over that knowledge: explore, analyze, build, and automate.
  </Card>

  <Card title="Assistant" icon="message" href="/products/assistant">
    A website assistant at [assistant.aiql.io](https://assistant.aiql.io). Indexes a public site and embeds grounded chat.
  </Card>

  <Card title="Ontologies" icon="diagram-project" href="/products/ontologies">
    A schema catalog at [ontologies.aiql.io](https://ontologies.aiql.io). Describes the shape of connected sources.
  </Card>

  <Card title="Terminology" icon="notes-medical" href="/products/terminology">
    A healthcare terminology product at [terminology.aiql.io](https://terminology.aiql.io). Maps text and codes to standard clinical vocabularies.
  </Card>
</Columns>

## Platform

<Columns cols={2}>
  <Card title="Middleware API" icon="cloud" href="/products/middleware">
    Ingestion that turns sources into structured, queryable knowledge. Also offered as MCP.
  </Card>

  <Card title="Artifacts API" icon="layer-group" href="/products/artifacts-api">
    Canvases, dashboards, documents, and presentations produced in Observatory.
  </Card>

  <Card title="Connectors API" icon="plug" href="/products/connectors-api">
    Discover, configure, and sync external systems into a workspace.
  </Card>

  <Card title="Ontologies API" icon="diagram-project" href="/products/ontologies-api">
    Catalog and introspect the shape of connected sources.
  </Card>

  <Card title="Terminology API" icon="notes-medical" href="/products/terminology-api">
    Clinical code systems, mapping, and FHIR terminology operations.
  </Card>
</Columns>

## Models

<Columns cols={2}>
  <Card title="Layout" icon="table-cells" href="/products/models-layout">
    Finds regions on each page before any text is read.
  </Card>

  <Card title="OCR" icon="file-image" href="/products/models-ocr">
    Reads those regions, with dedicated passes for tables, formulas, charts, and seals.
  </Card>

  <Card title="Pipeline" icon="sitemap" href="/products/models-pipeline">
    Infers or applies a schema, then extracts entities and relationships.
  </Card>

  <Card title="Answers" icon="comments" href="/products/models-answers">
    Reasons over the workspace knowledge layer in ask, reason, or build mode.
  </Card>

  <Card title="Embeddings" icon="circle-nodes" href="/products/models-embeddings">
    Vectors for queries, schema names, and instances.
  </Card>
</Columns>

## SDKs

<Columns cols={2}>
  <Card title="Python SDK" icon="python" href="/products/python-sdk">
    Package `aiql`. Typed client for the Middleware and Artifacts APIs.
  </Card>

  <Card title="TypeScript SDK" icon="js" href="/products/typescript-sdk">
    Package `@aiql.io/sdk`. Typed client for the same APIs in Node.js or the browser.
  </Card>

  <Card title="React SDK" icon="react" href="/products/react-sdk">
    Package `@aiql.io/react`. Embeds Studio and Observatory tools in a customer product.
  </Card>
</Columns>