aid: taxi
name: Taxi - Describe How Your APIs and Data Relate
description: >-
  Taxi is an open-source language (Apache 2.0) for describing APIs, data models, and how data relates across an entire
  ecosystem. TaxiQL is a declarative query language that lets consumers define the data they want while Taxi handles
  orchestration across REST APIs, databases, Kafka topics, gRPC services, and S3 buckets. Taxi eliminates manual
  integration code by using semantic type annotations to automatically discover data paths and adapt to evolving API
  schemas.
type: Index
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
position: Consumer
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/taxi.png
tags:
  - API Description
  - Data Integration
  - Open-Source
  - Query Language
  - Schema
  - Semantic
tags_raw:
  - API Description
  - Data Integration
  - Open Source
  - Query Language
  - Schema
  - Semantic
created: '2026-01-05'
modified: '2026-05-19'
url: https://raw.githubusercontent.com/api-evangelist/taxi/refs/heads/main/apis.yml
specificationVersion: '0.23'
apis:
- aid: taxi-describe-how-your-apis-and-data-relate:taxiql-query-api
  name: TaxiQL Query API
  description: >-
    TaxiQL is a declarative query language for federated data retrieval across multiple APIs and data
    sources. Queries specify the desired data structure using semantic types and Taxi automatically discovers
    the data paths, calls APIs, and assembles results.
  humanURL: https://docs.taxilang.org/language-reference/querying-with-taxiql/
  tags:
  - Data Query
  - Federated Query
  - Open-Source
  - Query Language
  tags_raw:
  - Data Query
  - Federated Query
  - Open Source
  - Query Language
  properties:
  - type: Documentation
    url: https://docs.taxilang.org/language-reference/querying-with-taxiql/
  - type: GitHub
    url: https://github.com/taxilang/taxilang
- aid: taxi-describe-how-your-apis-and-data-relate:orbital-platform
  name: Orbital Platform
  description: >-
    Orbital is the companion data platform for Taxi that hosts TaxiQL queries, provides a schema registry,
    and executes federated data integrations across APIs, databases, and streams using Taxi annotations.
  humanURL: https://orbitalhq.com
  tags:
  - Data Platform
  - Federated Query
  - Integration
  - Schema Registry
  properties:
  - type: Documentation
    url: https://orbitalhq.com
- aid: taxi-describe-how-your-apis-and-data-relate:taxi-playground
  name: Taxi Playground
  description: >-
    Interactive web-based editor for writing Taxi schemas and TaxiQL queries with live diagram generation
    and query execution preview.
  humanURL: https://playground.taxilang.org
  tags:
  - Developer Tools
  - Playground
  - Schema Editor
  properties:
  - type: Documentation
    url: https://playground.taxilang.org
- aid: taxi:taxi-conversion-api
  name: Taxi - Describe How Your APIs and Data Relate Conversion API
  description: Convert existing specs to Taxi format
  humanURL: https://taxilang.org/
  tags:
  - Conversion
  properties:
  - type: OpenAPI
    url: openapi/taxi-conversion-api-openapi.yml
  - type: Documentation
    url: https://docs.taxilang.org/
  - type: GitHub
    url: https://github.com/taxilang/taxilang
- aid: taxi:taxi-queries-api
  name: Taxi - Describe How Your APIs and Data Relate Queries API
  description: TaxiQL query execution
  humanURL: https://taxilang.org/
  tags:
  - Query
  tags_raw:
  - Queries
  properties:
  - type: OpenAPI
    url: openapi/taxi-queries-api-openapi.yml
  - type: Documentation
    url: https://docs.taxilang.org/
  - type: GitHub
    url: https://github.com/taxilang/taxilang
- aid: taxi:taxi-schemas-api
  name: Taxi - Describe How Your APIs and Data Relate Schemas API
  description: Taxi schema management and compilation
  humanURL: https://taxilang.org/
  tags:
  - Schemas
  properties:
  - type: OpenAPI
    url: openapi/taxi-schemas-api-openapi.yml
  - type: Documentation
    url: https://docs.taxilang.org/
  - type: GitHub
    url: https://github.com/taxilang/taxilang
- aid: taxi:taxi-services-api
  name: Taxi - Describe How Your APIs and Data Relate Services API
  description: Service registry operations
  humanURL: https://taxilang.org/
  tags:
  - Services
  properties:
  - type: OpenAPI
    url: openapi/taxi-services-api-openapi.yml
  - type: Documentation
    url: https://docs.taxilang.org/
  - type: GitHub
    url: https://github.com/taxilang/taxilang
- aid: taxi:taxi-types-api
  name: Taxi - Describe How Your APIs and Data Relate Types API
  description: Type registry and discovery
  humanURL: https://taxilang.org/
  tags:
  - Types
  properties:
  - type: OpenAPI
    url: openapi/taxi-types-api-openapi.yml
  - type: Documentation
    url: https://docs.taxilang.org/
  - type: GitHub
    url: https://github.com/taxilang/taxilang
common:
  - type: AgenticAccess
    url: agentic-access/taxi-agentic-access.yml
  - type: DomainSecurity
    url: security/taxi-domain-security.yml
  - type: LinkedIn
    url: https://www.linkedin.com/company/taxi
  - type: Website
    url: https://taxilang.org/
  - type: Documentation
    url: https://docs.taxilang.org/
  - type: GitHubOrg
    url: https://github.com/taxilang
  - type: Playground
    url: https://playground.taxilang.org
  - type: Slack
    url: https://join.slack.com/t/taxi-lang/shared_invite
  - type: OpenAPI
    url: openapi/_original/taxi-language-openapi.yml
  - type: JSONSchema
    url: json-schema/taxi-schema-definition-schema.json
  - type: JSONStructure
    url: json-structure/taxi-schema-structure.json
  - type: JSONLD
    url: json-ld/taxi-context.jsonld
  - type: Vocabulary
    url: vocabulary/taxi-vocabulary.yml
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com