Vespa

Vespa is an Apache 2.0 open-source serving engine for big-data, vector search, and recommendations. It exposes a Document API (write/read), a Search API (query), and several admin endpoints. Vespa Cloud is the commercial managed offering.

2 APIs 0 Features

Vector DatabaseSearchOpen SourceReal-TimeRecommendations

APIs

Vespa Document API v1

The /document/v1 API supports GET, POST, PUT, and DELETE for documents, plus bulk visiting/iteration with continuation tokens, conditional writes (test-and-set using the documen...

Vespa Search API

The Vespa Search API accepts queries via YQL or structured query JSON over HTTP GET/POST. It powers full-text, vector, and hybrid retrieval with ranking expressions defined in t...

Resources

Sources

aid: vespa
url: https://raw.githubusercontent.com/api-evangelist/vespa/refs/heads/main/apis.yml
name: Vespa
x-type: opensource
description: >-
  Vespa is an Apache 2.0 open-source serving engine for big-data, vector search, and
  recommendations. It exposes a Document API (write/read), a Search API (query), and
  several admin endpoints. Vespa Cloud is the commercial managed offering.
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - Vector Database
  - Search
  - Open Source
  - Real-Time
  - Recommendations
created: '2026-05-08'
modified: '2026-05-08'
specificationVersion: '0.19'
apis:
  - aid: vespa:vespa-document-api-v1
    name: Vespa Document API v1
    humanURL: https://docs.vespa.ai/en/document-v1-api-guide.html
    baseURL: http://{vespa_endpoint}/document/v1
    tags:
      - REST
      - Documents
      - CRUD
      - Visit
    description: >-
      The /document/v1 API supports GET, POST, PUT, and DELETE for documents, plus bulk
      visiting/iteration with continuation tokens, conditional writes (test-and-set
      using the document selector language), and upserts. Backpressure is signaled
      with 429 Too Many Requests.
    properties:
      - type: Documentation
        url: https://docs.vespa.ai/en/document-v1-api-guide.html
  - aid: vespa:vespa-search-api
    name: Vespa Search API
    humanURL: https://docs.vespa.ai/en/query-api.html
    baseURL: http://{vespa_endpoint}/search/
    tags:
      - REST
      - Search
      - Query
      - YQL
    description: >-
      The Vespa Search API accepts queries via YQL or structured query JSON over HTTP
      GET/POST. It powers full-text, vector, and hybrid retrieval with ranking
      expressions defined in the application package.
    properties:
      - type: Documentation
        url: https://docs.vespa.ai/en/query-api.html
common:
  - type: Website
    url: https://vespa.ai/
  - type: Portal
    url: https://docs.vespa.ai/
  - type: SourceCode
    url: https://github.com/vespa-engine/vespa
  - type: CommercialOffering
    title: Vespa Cloud
    url: https://cloud.vespa.ai/
  - type: Pricing
    url: https://cloud.vespa.ai/price-calculator.html
  - type: Plans
    url: plans/vespa-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/vespa-rate-limits.yml
  - type: FinOps
    url: finops/vespa-finops.yml
maintainers:
  - FN: Kin Lane
    email: [email protected]