# Vespa API and interfaces

 

## Deployment and configuration

- [Deploy API](deploy-v2.html): Deploy [application packages](../../basics/applications.html) to configure a Vespa application
- [Config API](config-v2.html): Get and Set configuration
- [Tenant API](application-v2.html): Configure multiple tenants in the config servers

## Document API

- [Reads and writes](../../writing/reads-and-writes.html): APIs and binaries to read and update documents
- [/document/v1/](document-v1.html): REST API for operations based on document ID (get, put, remove, update)
- [Feeding API](../../clients/vespa-feed-client.html): High performance feeding API, the recommended API for feeding data
- [JSON feed format](../schemas/document-json-format.html): The Vespa Document format
- [Vespa Java Document API](../../writing/document-api-guide.html)

## Query and grouping

- [Query API](../../querying/query-api.html), [Query API reference](query.html)
- [Query Language](../../querying/query-language.html), [Query Language reference](../querying/yql.html), [Simple Query Language reference](../querying/simple-query-language.html), [Predicate fields](../../schemas/predicate-fields.html)
- [Vespa Query Profiles](../../querying/query-profiles.html)
- [Grouping API](../../querying/grouping.html), [Grouping API reference](../querying/grouping-language.html)

## Processing

- [Vespa Processing](../../applications/processing.html): Request-Response processing
- [Vespa Document Processing](../../applications/document-processors.html): Feed processing

## Request processing

- [Searcher API](../../applications/searchers.html)
- [Federation API](../../querying/federation.html)
- [Web service API](../../applications/web-services.html)

## Result processing

- [Custom renderer API](../../applications/result-renderers.html)

## Status and state

- [Health and Metric APIs](../../operations/metrics.html)
- [/cluster/v2 API](cluster-v2.html)

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### On this page:

- [Vespa API and interfaces](#page-title)
- [Deployment and configuration](#deployment-and-configuration)
- [Document API](#document-api)
- [Query and grouping](#query-and-grouping)
- [Processing](#processing)
- [Request processing](#request-processing)
- [Result processing](#result-processing)
- [Status and state](#status)