Dagster

Dagster is a data orchestration platform centered on software-defined assets with strong observability and testing support. It exposes a GraphQL API for programmatic interaction with Dagster instances and a REST API for reporting external asset materializations, checks, and observations from outside pipelines.

Dagster publishes 3 APIs on the APIs.io network: Checks API, Materializations API, and Observations API. Tagged areas include Data Engineering, Data Orchestration, Data Pipelines, ETL, and Workflows.

The Dagster catalog on APIs.io includes 1 JSON-LD context and 2 Spectral governance rulesets.

Dagster’s developer surface includes authentication, developer portal, signup flow, documentation, API reference, getting-started guide, engineering blog, and 23 more developer resources.

🌐 Visit website 📡 Source on GitHub

62.6/100 strong ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFreemiumSelf serve⚡ Free to try

4 APIs

Data EngineeringData OrchestrationData PipelinesETLWorkflowsAssetsGraphQL

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 62.6/100 · strong

Contract Quality 17.4 / 25

Developer Ergonomics 12.6 / 20

Commercial Clarity 14.2 / 20

Operational Transparency 8.2 / 13

Governance 3.8 / 12

Discoverability 6.5 / 10

Agent readiness — 31/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

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

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/dagster: 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 4

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.

Dagster Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

JSON Schema 3

Standalone JSON Schema definitions for this provider's data models.

Get Started 3

Portal, sign-up, and the first successful call

Portal

Portal

Signup

Signup

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LlmsText

LlmsText

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Arazzo

Arazzo

Arazzo

JSONLD

Vocabulary

Build 4

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

GitHubOrganization

GitHubOrganization

GitHubRepository

GitHubRepository

Python SDK

Python SDK

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Security

Security

Operate 5

Status, limits, changes, and where to get help

ChangeLog

Support

Community

Slack

Contact

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 3

The organization behind the API

LinkedIn

Blog

Blog

About

About

Source (apis.yml)

aid: dagster
name: Dagster
segments:
- Workflows
description: Dagster is a data orchestration platform centered on software-defined assets with strong observability and testing
  support. It exposes a GraphQL API for programmatic interaction with Dagster instances and a REST API for reporting external
  asset materializations, checks, and observations from outside pipelines.
type: Index
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
position: Consumer
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/dagster.png
tags:
- Data Engineering
- Data Orchestration
- Data Pipelines
- ETL
- Workflows
- Assets
- GraphQL
created: '2026-03-03'
modified: '2026-05-19'
url: https://raw.githubusercontent.com/api-evangelist/dagster/refs/heads/main/apis.yml
specificationVersion: '0.19'
apis:
- aid: dagster:graphql-api
  name: Dagster GraphQL API
  description: The Dagster GraphQL API allows clients to interact with Dagster programmatically. It can be used to query information
    about Dagster runs, retrieve metadata about repositories, jobs, and ops, and launch runs. The GraphQL endpoint is served
    by the webserver at the /graphql route.
  humanURL: https://docs.dagster.io/api/graphql
  tags:
  - Data Orchestration
  - GraphQL
  - Jobs
  - Runs
  - Workflows
  properties:
  - type: Documentation
    url: https://docs.dagster.io/api/graphql
  - type: GraphQL Playground
    url: https://docs.dagster.io/api/graphql
  - url: graphql/dagster-graphql.md
    type: GraphQL
- aid: dagster:dagster-checks-api
  name: Dagster Checks API
  description: Report asset check evaluations.
  humanURL: https://docs.dagster.io/api/graphql
  tags:
  - Checks
  properties:
  - type: OpenAPI
    url: openapi/dagster-checks-api-openapi.yml
  - type: Documentation
    url: https://docs.dagster.io/api/rest-apis/external-assets-rest-api
  - type: JSONSchema
    url: json-schema/asset-materialization.json
  - type: JSONSchema
    url: json-schema/asset-check.json
  - type: JSONSchema
    url: json-schema/asset-observation.json
  - type: Rules
    url: rules/dagster-external-assets-rest-api-rules.yml
  - type: Capabilities
    url: capabilities/dagster-external-assets-rest-api-capabilities.yml
- aid: dagster:dagster-materializations-api
  name: Dagster Materializations API
  description: Report asset materialization events.
  humanURL: https://docs.dagster.io/api/graphql
  tags:
  - Materializations
  properties:
  - type: OpenAPI
    url: openapi/dagster-materializations-api-openapi.yml
  - type: Documentation
    url: https://docs.dagster.io/api/rest-apis/external-assets-rest-api
  - type: JSONSchema
    url: json-schema/asset-materialization.json
  - type: JSONSchema
    url: json-schema/asset-check.json
  - type: JSONSchema
    url: json-schema/asset-observation.json
  - type: Rules
    url: rules/dagster-external-assets-rest-api-rules.yml
  - type: Capabilities
    url: capabilities/dagster-external-assets-rest-api-capabilities.yml
- aid: dagster:dagster-observations-api
  name: Dagster Observations API
  description: Report asset observation events.
  humanURL: https://docs.dagster.io/api/graphql
  tags:
  - Observations
  properties:
  - type: OpenAPI
    url: openapi/dagster-observations-api-openapi.yml
  - type: Documentation
    url: https://docs.dagster.io/api/rest-apis/external-assets-rest-api
  - type: JSONSchema
    url: json-schema/asset-materialization.json
  - type: JSONSchema
    url: json-schema/asset-check.json
  - type: JSONSchema
    url: json-schema/asset-observation.json
  - type: Rules
    url: rules/dagster-external-assets-rest-api-rules.yml
  - type: Capabilities
    url: capabilities/dagster-external-assets-rest-api-capabilities.yml
common:
- type: AgenticAccess
  url: agentic-access/dagster-agentic-access.yml
- type: DomainSecurity
  url: security/dagster-domain-security.yml
- type: Authentication
  url: authentication/dagster-authentication.yml
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/dagster/overview
- type: Arazzo
  url: arazzo/dagster-external-asset-event-pipeline-workflow.yml
  name: Dagster External Asset Event Pipeline
- type: Arazzo
  url: arazzo/dagster-materialize-and-check-asset-workflow.yml
  name: Dagster Materialize and Check External Asset
- type: Arazzo
  url: arazzo/dagster-observe-then-materialize-asset-workflow.yml
  name: Dagster Observe and Materialize External Asset
- type: LinkedIn
  url: https://www.linkedin.com/company/dagsterlabs
- type: Portal
  url: https://dagster.cloud/
- type: Signup
  url: https://dagster.cloud/signup
- type: Documentation
  url: https://docs.dagster.io/
- type: APIReference
  url: https://docs.dagster.io/api
- type: GettingStarted
  url: https://docs.dagster.io/getting-started/quickstart
- type: Blog
  url: https://dagster.io/blog
- type: ChangeLog
  url: https://docs.dagster.io/about/changelog
- type: Pricing
  url: https://dagster.io/pricing
- type: Support
  url: https://dagster.io/support
- type: Community
  url: https://dagster.io/community
- type: Slack
  url: https://dagster.io/slack
- type: GitHubOrganization
  url: https://github.com/dagster-io
- type: GitHubRepository
  url: https://github.com/dagster-io/dagster
- type: Integrations
  url: https://docs.dagster.io/integrations/libraries
- type: Python SDK
  url: https://pypi.org/project/dagster/
- type: PrivacyPolicy
  url: https://dagster.io/privacy
- type: TermsOfService
  url: https://dagster.io/terms
- type: Security
  url: https://dagster.io/security
- type: About
  url: https://dagster.io/company/about-us
- type: Contact
  url: https://dagster.io/contact
- type: JSONLD
  url: json-ld/dagster-context.jsonld
- type: Vocabulary
  url: vocabulary/dagster-vocabulary.yml
- type: LlmsText
  url: https://docs.dagster.io/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
kind: opensource

Dagster

APIs 4

Postman Collections 1

Open Collections 1

Arazzo Workflows 3

GraphQL 1

Pricing Plans 1

Rate Limits 1

FinOps 1

Semantic Vocabularies 1

Spectral Rules 2

JSON Schema 3

Security Posture 2

Agentic Access 1

Get Started 3

Documentation 2

Agent Surfaces 2

Design & Contract 5

Build 4

Access & Security 3

Operate 5

Commercial 3

Company 3

Source (apis.yml)