Haystack / deepset

Haystack is deepset's open-source Python framework for building context-engineered, production-ready LLM applications - modular Pipelines and agent workflows assembled from 100+ Components and document stores for RAG, semantic search, and agents. Haystack pipelines deploy as REST services via Hayhooks, and the commercial deepset AI Platform (deepset Cloud) exposes a hosted REST API at api.cloud.deepset.ai for pipelines, search, files, and workspaces.

Haystack / deepset publishes 4 APIs on the APIs.io network, including Files API, Pipelines API, Search API, and 1 more. Tagged areas include Artificial Intelligence, LLM, RAG, Open-Source, and Orchestration.

Haystack / deepset’s developer surface includes authentication, documentation, engineering blog, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

36.5/100 thin ▬ flat Agent 20/100 agent aware Full breakdown ↓
scored 2026-08-25 · rubric v0.14.0

AccessFreemiumSelf serve⚡ Free to try

6 APIs

Artificial Intelligence LLM RAG Open-Source Orchestration

Kin Score

Kin Score How this is scored →
scored 2026-08-25 · rubric v0.14.0

Composite quality — 36.5/100 · thin

Contract Quality 13.3 / 25

Developer Ergonomics 4.8 / 20

Access Clarity 5.8 / 20

Operational Transparency 4.4 / 13

Contract Governance 0.0 / 12

Discoverability 8.2 / 10

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Surface 0 / 5

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/haystack-ai: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 6

Individual APIs this provider publishes, each with its own machine-readable definition.

GraphQL 1

GraphQL schemas published by this provider.

Rate Limits 1

Documented rate limits and quota policies.

Haystack Ai Rate Limits

5 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Source (apis.yml)

aid: haystack-ai
url: https://raw.githubusercontent.com/api-evangelist/haystack-ai/refs/heads/main/apis.yml
name: Haystack / deepset
kind: company
description: Haystack is deepset's open-source Python framework for building context-engineered, production-ready LLM applications
  - modular Pipelines and agent workflows assembled from 100+ Components and document stores for RAG, semantic search, and
  agents. Haystack pipelines deploy as REST services via Hayhooks, and the commercial deepset AI Platform (deepset Cloud)
  exposes a hosted REST API at api.cloud.deepset.ai for pipelines, search, files, and workspaces.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/haystack-ai.png
tags:
- Artificial Intelligence
- LLM
- RAG
- Open-Source
- Orchestration
tags_raw:
- AI
- LLM
- RAG
- Open Source
- Orchestration
created: '2026-06-20'
modified: '2026-08-08'
specificationVersion: '0.23'
apis:
- aid: haystack-ai:haystack-framework
  name: Haystack Framework (Open Source)
  tags:
  - Framework
  - Python
  - Pipelines
  - Open-Source
  tags_raw:
  - Framework
  - Python
  - Pipelines
  - Open Source
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.haystack.deepset.ai/docs/intro
  baseURL: https://github.com/deepset-ai/haystack
  properties:
  - url: https://docs.haystack.deepset.ai/docs/intro
    type: Documentation
  - url: https://docs.haystack.deepset.ai/reference
    type: APIReference
  - url: https://github.com/deepset-ai/haystack
    type: GitHub
  description: Apache-2.0 licensed Python framework for composable LLM orchestration. Build modular Pipelines from Components
    (retrievers, routers, embedders, generators, evaluators) over Document Stores for RAG, semantic search, and agents. Programmatic
    library/SDK surface, not a hosted REST API.
- aid: haystack-ai:hayhooks-rest-deployment
  name: Hayhooks REST Deployment
  tags:
  - REST
  - Deployment
  - Pipelines
  - MCP
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://github.com/deepset-ai/hayhooks
  baseURL: https://github.com/deepset-ai/hayhooks
  properties:
  - url: https://docs.haystack.deepset.ai/docs/hayhooks
    type: Documentation
  - url: https://github.com/deepset-ai/hayhooks
    type: GitHub
  description: Hayhooks turns a Haystack pipeline into a self-hosted REST API (and optional MCP server) with one command,
    auto-generating OpenAPI/Swagger docs and HTTP run endpoints. The deployed surface is generated per pipeline and self-hosted,
    not a fixed public API.
- aid: haystack-ai:haystack-ai-files-api
  name: Haystack / deepset Files API
  description: Upload, list, delete, and annotate files; manage upload sessions.
  humanURL: https://docs.haystack.deepset.ai/docs/intro
  baseURL: https://github.com/deepset-ai/haystack
  tags:
  - File
  tags_raw:
  - Files
  properties:
  - type: OpenAPI
    url: openapi/haystack-ai-files-api-openapi.yml
  - type: Documentation
    url: https://docs.cloud.deepset.ai/docs/create-a-pipeline-with-rest-api
  - type: APIReference
    url: https://docs.cloud.deepset.ai/reference/api-overview
  - type: PostmanCollection
    url: collections/haystack-ai.postman_collection.json
  - type: Documentation
    url: https://docs.cloud.deepset.ai/docs/run-a-search
  - type: Documentation
    url: https://docs.cloud.deepset.ai/docs/upload-files
- aid: haystack-ai:haystack-ai-pipelines-api
  name: Haystack / deepset Pipelines API
  description: Create, list, deploy, and undeploy Haystack pipelines.
  humanURL: https://docs.haystack.deepset.ai/docs/intro
  baseURL: https://github.com/deepset-ai/haystack
  tags:
  - Pipelines
  properties:
  - type: OpenAPI
    url: openapi/haystack-ai-pipelines-api-openapi.yml
  - type: Documentation
    url: https://docs.cloud.deepset.ai/docs/create-a-pipeline-with-rest-api
  - type: APIReference
    url: https://docs.cloud.deepset.ai/reference/api-overview
  - type: PostmanCollection
    url: collections/haystack-ai.postman_collection.json
  - type: Documentation
    url: https://docs.cloud.deepset.ai/docs/run-a-search
  - type: Documentation
    url: https://docs.cloud.deepset.ai/docs/upload-files
- aid: haystack-ai:haystack-ai-search-api
  name: Haystack / deepset Search API
  description: Run queries against deployed pipelines.
  humanURL: https://docs.haystack.deepset.ai/docs/intro
  baseURL: https://github.com/deepset-ai/haystack
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/haystack-ai-search-api-openapi.yml
  - type: Documentation
    url: https://docs.cloud.deepset.ai/docs/create-a-pipeline-with-rest-api
  - type: APIReference
    url: https://docs.cloud.deepset.ai/reference/api-overview
  - type: PostmanCollection
    url: collections/haystack-ai.postman_collection.json
  - type: Documentation
    url: https://docs.cloud.deepset.ai/docs/run-a-search
  - type: Documentation
    url: https://docs.cloud.deepset.ai/docs/upload-files
- aid: haystack-ai:haystack-ai-workspaces-api
  name: Haystack / deepset Workspaces API
  description: Manage workspaces that isolate pipelines and data.
  humanURL: https://docs.haystack.deepset.ai/docs/intro
  baseURL: https://github.com/deepset-ai/haystack
  tags:
  - Workspaces
  properties:
  - type: OpenAPI
    url: openapi/haystack-ai-workspaces-api-openapi.yml
  - type: Documentation
    url: https://docs.cloud.deepset.ai/docs/create-a-pipeline-with-rest-api
  - type: APIReference
    url: https://docs.cloud.deepset.ai/reference/api-overview
  - type: PostmanCollection
    url: collections/haystack-ai.postman_collection.json
  - type: Documentation
    url: https://docs.cloud.deepset.ai/docs/run-a-search
  - type: Documentation
    url: https://docs.cloud.deepset.ai/docs/upload-files
common:
- type: AgenticAccess
  url: agentic-access/haystack-ai-agentic-access.yml
- type: DomainSecurity
  url: security/haystack-ai-domain-security.yml
- type: Authentication
  url: authentication/haystack-ai-authentication.yml
- type: GitHubOrganization
  url: https://github.com/deepset-ai
- type: LinkedIn
  url: https://www.linkedin.com/company/deepset
- type: Website
  url: https://haystack.deepset.ai
- type: Documentation
  url: https://docs.haystack.deepset.ai/docs/intro
- type: Plans
  url: plans/haystack-ai-plans-pricing.yml
- type: RateLimits
  url: rate-limits/haystack-ai-rate-limits.yml
- type: FinOps
  url: finops/haystack-ai-finops.yml
- url: https://haystack.deepset.ai/blog
  type: Blog
- type: LlmsText
  url: https://docs.haystack.deepset.ai/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-merged-from:
- haystack

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