> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://docs.emtelligent.com/nlp/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://docs.emtelligent.com/_mcp/server.

# NLP API

## Docs

- [Overview](https://docs.emtelligent.com/nlp/overview.md)
- [Quickstart Code Example](https://docs.emtelligent.com/nlp/quickstart-code-example.md): Annotate a document and read the entities back — in Python
- [Release Notes](https://docs.emtelligent.com/nlp/release-notes/overview.md)
- [Release notes for NLP API 2.37](https://docs.emtelligent.com/nlp/release-notes/v2-37.md)
- [Release notes for NLP API 2.36](https://docs.emtelligent.com/nlp/release-notes/v2-36.md)
- [Release notes for NLP API 2.35](https://docs.emtelligent.com/nlp/release-notes/v2-35.md)
- [Release notes for NLP API 2.34](https://docs.emtelligent.com/nlp/release-notes/v2-34.md)
- [Release notes for NLP API 2.31](https://docs.emtelligent.com/nlp/release-notes/v2-31.md)
- [Release notes for NLP API 2.29](https://docs.emtelligent.com/nlp/release-notes/v2-29.md)
- [Release notes for NLP API 2.28](https://docs.emtelligent.com/nlp/release-notes/v2-28.md)
- [Release notes for NLP API 2.27](https://docs.emtelligent.com/nlp/release-notes/v2-27.md)
- [Release notes for NLP API 2.23](https://docs.emtelligent.com/nlp/release-notes/v2-23.md)
- [Release notes for NLP API 2.22](https://docs.emtelligent.com/nlp/release-notes/v2-22.md)
- [Release notes for NLP API 2.21p1](https://docs.emtelligent.com/nlp/release-notes/v2-21p1.md)
- [Release notes for NLP API 2.21](https://docs.emtelligent.com/nlp/release-notes/v2-21.md)
- [Release notes for NLP API 2.20](https://docs.emtelligent.com/nlp/release-notes/v2-20.md)
- [Release notes for NLP API 2.19](https://docs.emtelligent.com/nlp/release-notes/v2-19.md)
- [Choose an NLP API Client](https://docs.emtelligent.com/nlp/guides/choose-a-client.md)
- [Submitting Documents to NLP API](https://docs.emtelligent.com/nlp/guides/submitting-documents.md)
- [Understanding the NLP API Output](https://docs.emtelligent.com/nlp/guides/understanding-output.md)
- [Writing a Custom NLP API Client](https://docs.emtelligent.com/nlp/guides/writing-your-own-client.md)
- [NLP API MCP Server](https://docs.emtelligent.com/nlp/guides/mcp.md)
- [MCP Server Privacy Policy](https://docs.emtelligent.com/nlp/guides/mcp-privacy.md)
- [Versioning & Upgrades](https://docs.emtelligent.com/nlp/versioning/overview.md)
- [Understanding NLP API Component Versions](https://docs.emtelligent.com/nlp/versioning/understanding-versions.md)
- [Client and Database Upgrade Considerations](https://docs.emtelligent.com/nlp/versioning/upgrade-considerations.md)
- [API Versioning](https://docs.emtelligent.com/nlp/versioning/api-versioning.md)
- [API Changelog](https://docs.emtelligent.com/nlp/versioning/api-changelog.md)
- [System Requirements](https://docs.emtelligent.com/nlp/reference/requirements.md)
- [API Key HMAC Authentication](https://docs.emtelligent.com/nlp/reference/hmac-authentication.md)
- [JSON Input Format](https://docs.emtelligent.com/nlp/reference/input-format.md)
- [JSON Result Format](https://docs.emtelligent.com/nlp/reference/result-format.md)
- [Audit Data Download](https://docs.emtelligent.com/nlp/reference/audit-data-download.md)
- [NLP API Reference](https://docs.emtelligent.com/nlp/api.md)
- [Python SDK](https://docs.emtelligent.com/nlp/python/overview.md)
- [Installation](https://docs.emtelligent.com/nlp/python/installation.md)
- [Quickstart](https://docs.emtelligent.com/nlp/python/quickstart.md)
- [Client and Database Upgrade Considerations](https://docs.emtelligent.com/nlp/python/upgrade-considerations.md)
- [Changelog](https://docs.emtelligent.com/nlp/python/changelog.md)
- [New feature notes](https://docs.emtelligent.com/nlp/python/features/overview.md)
- [Concept confidence](https://docs.emtelligent.com/nlp/python/features/concept-confidence.md)
- [Entity heading status](https://docs.emtelligent.com/nlp/python/features/heading-status.md)
- [Page locations](https://docs.emtelligent.com/nlp/python/features/page-location.md)
- [Heading locations](https://docs.emtelligent.com/nlp/python/features/heading-location.md)
- [Relation Confidence](https://docs.emtelligent.com/nlp/python/features/relation-confidence.md)
- [API Keys](https://docs.emtelligent.com/nlp/python/features/api-key.md)
- [Relation Concept Links](https://docs.emtelligent.com/nlp/python/features/relation-concept-links.md)
- [Found Entity Experiencer](https://docs.emtelligent.com/nlp/python/features/found-entity-experiencer.md)
- [Found Entity Factuality](https://docs.emtelligent.com/nlp/python/features/found-entity-factuality.md)
- [Inferring the category](https://docs.emtelligent.com/nlp/python/features/infer-category.md)
- [Multithreaded database client](https://docs.emtelligent.com/nlp/python/features/multithreaded-db-client.md)
- [Pluggable database schemas](https://docs.emtelligent.com/nlp/python/features/pluggable-schemas.md)
- [Migrating to v7](https://docs.emtelligent.com/nlp/python/features/migrating-to-v7.md)
- [Database client usage](https://docs.emtelligent.com/nlp/python/database-client/overview.md)
- [End-to-end Report Processing and Data Extraction Example](https://docs.emtelligent.com/nlp/python/database-client/end-to-end-example.md)
- [Database Client Options](https://docs.emtelligent.com/nlp/python/database-client/options.md)
- [How the legacy schema works](https://docs.emtelligent.com/nlp/python/database-client/legacy-schema.md)
- [Using the Database Client with Snowflake](https://docs.emtelligent.com/nlp/python/database-client/snowflake.md)
- [Using the Database Client with Microsoft SQL Server](https://docs.emtelligent.com/nlp/python/database-client/sql-server.md)
- [Simple client to database client migration](https://docs.emtelligent.com/nlp/python/database-client/migrating-from-simple-client.md)
- [CCD Features](https://docs.emtelligent.com/nlp/python/ccd/overview.md)
- [Document text](https://docs.emtelligent.com/nlp/python/ccd/text.md)
- [Structured entries as metadata](https://docs.emtelligent.com/nlp/python/ccd/metadata.md)
- [Metadata schema](https://docs.emtelligent.com/nlp/python/ccd/metadata-schema.md)
- [C-CDA Section Mapping](https://docs.emtelligent.com/nlp/python/ccd/sections.md)
- [CCD files with references to external files](https://docs.emtelligent.com/nlp/python/ccd/external-files.md)
- [Config file](https://docs.emtelligent.com/nlp/python/ccd/config.md)
- [Quick overview of the SDK](https://docs.emtelligent.com/nlp/python/introduction.md)
- [Building your own client](https://docs.emtelligent.com/nlp/python/building-a-client.md)
- [Input File Formats Supported By The SDK](https://docs.emtelligent.com/nlp/python/input-formats.md)
- [emtellipro](https://docs.emtelligent.com/nlp/python/reference/index.md)
- [auth](https://docs.emtelligent.com/nlp/python/reference/auth.md): emtellipro.auth
- [ccd](https://docs.emtelligent.com/nlp/python/reference/ccd.md): emtellipro.ccd
- [data](https://docs.emtelligent.com/nlp/python/reference/data.md): emtellipro.data
- [db](https://docs.emtelligent.com/nlp/python/reference/db.md): emtellipro.db
- [db.database](https://docs.emtelligent.com/nlp/python/reference/db-database.md): emtellipro.db.database
- [db.schemas](https://docs.emtelligent.com/nlp/python/reference/db-schemas.md): emtellipro.db.schemas
- [db.schemas.insert](https://docs.emtelligent.com/nlp/python/reference/db-schemas-insert.md): emtellipro.db.schemas.insert
- [db.schemas.legacy](https://docs.emtelligent.com/nlp/python/reference/db-schemas-legacy.md): emtellipro.db.schemas.legacy
- [db.schemas.legacy.models](https://docs.emtelligent.com/nlp/python/reference/db-schemas-legacy-models.md): emtellipro.db.schemas.legacy.models
- [db.schemas.legacy.rowtypes](https://docs.emtelligent.com/nlp/python/reference/db-schemas-legacy-rowtypes.md): emtellipro.db.schemas.legacy.rowtypes
- [db.schemas.schema](https://docs.emtelligent.com/nlp/python/reference/db-schemas-schema.md): emtellipro.db.schemas.schema
- [db.schemas.util](https://docs.emtelligent.com/nlp/python/reference/db-schemas-util.md): emtellipro.db.schemas.util
- [db.utils](https://docs.emtelligent.com/nlp/python/reference/db-utils.md): emtellipro.db.utils
- [engine](https://docs.emtelligent.com/nlp/python/reference/engine.md): emtellipro.engine
- [exc](https://docs.emtelligent.com/nlp/python/reference/exc.md): emtellipro.exc
- [flatten](https://docs.emtelligent.com/nlp/python/reference/flatten.md): emtellipro.flatten
- [load](https://docs.emtelligent.com/nlp/python/reference/load.md): emtellipro.load
- [load.data](https://docs.emtelligent.com/nlp/python/reference/load-data.md): emtellipro.load.data
- [load.utils](https://docs.emtelligent.com/nlp/python/reference/load-utils.md): emtellipro.load.utils
- [resources](https://docs.emtelligent.com/nlp/python/reference/resources.md): emtellipro.resources
- [utils](https://docs.emtelligent.com/nlp/python/reference/utils.md): emtellipro.utils
- [version](https://docs.emtelligent.com/nlp/python/reference/version.md): emtellipro.version
- [Flatten JSON](https://docs.emtelligent.com/nlp/python/flatten-json.md)
- [emtellipro-flatten-json](https://docs.emtelligent.com/nlp/python/cli/flatten-json.md)
- [Overview](https://docs.emtelligent.com/nlp/database/overview.md)
- [Core Concepts](https://docs.emtelligent.com/nlp/database/schema/core/overview.md)
- [Entity-level Tables](https://docs.emtelligent.com/nlp/database/schema/core/entity-tables.md)
- [Document-level Tables](https://docs.emtelligent.com/nlp/database/schema/core/document-tables.md)
- [Relation Features](https://docs.emtelligent.com/nlp/database/schema/relations/overview.md)
- [Overview of Relations Table Schemas](https://docs.emtelligent.com/nlp/database/schema/relations/schema-overview.md)
- [Experiencer Relations](https://docs.emtelligent.com/nlp/database/schema/relations/experiencer.md)
- [Measurement Relations](https://docs.emtelligent.com/nlp/database/schema/relations/measurement.md)
- [Medication Relations](https://docs.emtelligent.com/nlp/database/schema/relations/medication.md)
- [Qualifier Relations](https://docs.emtelligent.com/nlp/database/schema/relations/qualifier.md)
- [Anatomic Site Relations](https://docs.emtelligent.com/nlp/database/schema/relations/anatomic-site.md)
- [Temporality Relations](https://docs.emtelligent.com/nlp/database/schema/relations/temporality.md)
- [Reported Event Relations](https://docs.emtelligent.com/nlp/database/schema/relations/reported-event.md)
- [Follow-up Relations](https://docs.emtelligent.com/nlp/database/schema/relations/followup.md)
- [Imagelink Relations](https://docs.emtelligent.com/nlp/database/schema/relations/imagelink.md)
- [Extensions](https://docs.emtelligent.com/nlp/database/schema/extensions/overview.md)
- [Using SNOMED CT Concept Hierarchies](https://docs.emtelligent.com/nlp/database/schema/extensions/snomed-hierarchies.md)
- [Using SNOMED CT Concept Descriptions](https://docs.emtelligent.com/nlp/database/schema/extensions/snomed-descriptions.md)
- [Introduction](https://docs.emtelligent.com/nlp/database/cookbook/introduction.md)
- [Concept Queries](https://docs.emtelligent.com/nlp/database/cookbook/concept-queries/overview.md)
- [Multi-Concept Search](https://docs.emtelligent.com/nlp/database/cookbook/concept-queries/multi-concept/overview.md)
- [Sleep Apnea](https://docs.emtelligent.com/nlp/database/cookbook/concept-queries/multi-concept/sleep-apnea.md)
- [Sleep Apnea Experienced by Patients](https://docs.emtelligent.com/nlp/database/cookbook/concept-queries/multi-concept/sleep-apnea-experiencer.md)
- [Entity Type Search](https://docs.emtelligent.com/nlp/database/cookbook/concept-queries/entity-type/overview.md)
- [Identifying Terms of Interest in Radiology Reports](https://docs.emtelligent.com/nlp/database/cookbook/concept-queries/entity-type/radiology-terms.md)
- [Generating Patient Summaries from Clinical Reports](https://docs.emtelligent.com/nlp/database/cookbook/concept-queries/entity-type/patient-summaries.md)
- [Ontology Search](https://docs.emtelligent.com/nlp/database/cookbook/concept-queries/ontology/overview.md)
- [ICD-10 Concept search](https://docs.emtelligent.com/nlp/database/cookbook/concept-queries/ontology/icd-10-search.md)
- [ICD-10 Concepts Experienced by Patients](https://docs.emtelligent.com/nlp/database/cookbook/concept-queries/ontology/icd-10-search-experiencer.md)
- [Concept Hierarchy Queries](https://docs.emtelligent.com/nlp/database/cookbook/concept-queries/concept-hierarchy/overview.md)
- [Cardiovascular Disease Symptoms](https://docs.emtelligent.com/nlp/database/cookbook/concept-queries/concept-hierarchy/cardiovascular-symptoms.md)
- [Relation Feature Queries](https://docs.emtelligent.com/nlp/database/cookbook/relation-queries/overview.md)
- [Medication Summary](https://docs.emtelligent.com/nlp/database/cookbook/relation-queries/medication/summary.md)
- [Medication Prescribed for Pain](https://docs.emtelligent.com/nlp/database/cookbook/relation-queries/medication/prescribed-for-pain.md)
- [Left Ventricular Ejection Fraction](https://docs.emtelligent.com/nlp/database/cookbook/relation-queries/measurement/ejection-fraction.md)
- [Cancer Staging](https://docs.emtelligent.com/nlp/database/cookbook/relation-queries/qualifier/cancer-staging.md)
- [Hypertension Control](https://docs.emtelligent.com/nlp/database/cookbook/relation-queries/qualifier/hypertension-control.md)
- [Follow-up Summary](https://docs.emtelligent.com/nlp/database/cookbook/relation-queries/followup/summary.md)
- [Imagelink Summary](https://docs.emtelligent.com/nlp/database/cookbook/relation-queries/imagelink/summary.md)
- [Advanced Queries](https://docs.emtelligent.com/nlp/database/cookbook/advanced-queries/overview.md)
- [Continuity of Care Documents (CCD) Case Study](https://docs.emtelligent.com/nlp/database/cookbook/advanced-queries/ccd/overview.md)
- [Introduction](https://docs.emtelligent.com/nlp/database/cookbook/advanced-queries/ccd/introduction.md)
- [Find Smoking Status from Text Elements](https://docs.emtelligent.com/nlp/database/cookbook/advanced-queries/ccd/smoking-status.md)
- [Find CCD Document-level Metadata](https://docs.emtelligent.com/nlp/database/cookbook/advanced-queries/ccd/document-metadata.md)
- [Find Entities Extracted from Embedded Reports](https://docs.emtelligent.com/nlp/database/cookbook/advanced-queries/ccd/embedded-reports.md)
- [Find Problems with Statuses in Coded Entries](https://docs.emtelligent.com/nlp/database/cookbook/advanced-queries/ccd/problem-status.md)
- [Find Hypertension using Hierarchical Concept Search in Coded Entries](https://docs.emtelligent.com/nlp/database/cookbook/advanced-queries/ccd/hypertension-hierarchical.md)
- [Find Vaccines & Dates of Administration](https://docs.emtelligent.com/nlp/database/cookbook/advanced-queries/ccd/vaccination-dates.md)
- [Find coded Physical Quantities in CCDs](https://docs.emtelligent.com/nlp/database/cookbook/advanced-queries/ccd/labs-and-vitals.md)
- [Find Entities in CCD Sections which have no Coded data](https://docs.emtelligent.com/nlp/database/cookbook/advanced-queries/ccd/sections-without-coded-data.md)
- [Simple Query App Tutorial](https://docs.emtelligent.com/nlp/database/app-tutorial.md)

## API Docs

- NLP API Reference > Tasks [Submit files containing documents for processing](https://docs.emtelligent.com/nlp/api/tasks/submit-files-containing-documents-for-processing.md)
- NLP API Reference > Tasks [Check on a running processing task](https://docs.emtelligent.com/nlp/api/tasks/check-on-a-running-processing-task.md)
- NLP API Reference > Tasks [Get result from a completed processing task](https://docs.emtelligent.com/nlp/api/tasks/get-result-from-a-completed-processing-task.md)
- NLP API Reference > Tasks [Cancel a task](https://docs.emtelligent.com/nlp/api/tasks/cancel-a-task.md)
- NLP API Reference > Info [Get user information.](https://docs.emtelligent.com/nlp/api/info/get-user-information.md)

## OpenAPI Specification

The raw OpenAPI 3.1 specification for this API is available at:
- [OpenAPI JSON](https://docs.emtelligent.com/openapi.json)
- [OpenAPI YAML](https://docs.emtelligent.com/openapi.yaml)