Arize Phoenix

aid: phoenix
name: Arize Phoenix
description: 'Arize Phoenix is an open-source AI observability and evaluation platform built on OpenTelemetry, enabling developers
  to trace, evaluate, and debug LLM applications in production or locally. Phoenix exposes a REST API for programmatically
  ingesting spans and traces, managing datasets, running experiments, submitting annotations, and querying evaluation results.
  The platform supports a wide range of LLM frameworks including LangChain, LlamaIndex, OpenAI, Anthropic, and CrewAI through
  auto-instrumentation. Phoenix can be self-hosted in a single command or used as a managed cloud service (Arize AX), with
  authentication via API keys and OAuth2/OIDC for enterprise deployments.

  '
type: Index
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
url: https://raw.githubusercontent.com/api-evangelist/phoenix/refs/heads/main/apis.yml
created: '2026-06-13'
modified: '2026-06-13'
specificationVersion: '0.19'
tags:
- LLM Observability
- AI Evaluation
- OpenTelemetry
- Tracing
- LLMOps
- AI Monitoring
- Open Source
- Prompt Engineering
- Datasets
- Experiments
apis:
- name: Arize Phoenix REST API
  description: 'The Phoenix REST API provides programmatic access to all platform capabilities including trace ingestion via
    OpenTelemetry, span and trace annotation management, dataset upload and export, experiment creation and execution, annotation
    configuration, and project management. The API follows REST conventions with JSON request and response bodies and uses
    bearer token authentication via API keys.

    '
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://arize.com/docs/phoenix
  baseURL: https://app.phoenix.arize.com
  tags:
  - LLM Observability
  - Tracing
  - Evaluation
  - Datasets
  - Experiments
  properties:
  - type: Documentation
    url: https://arize.com/docs/phoenix
  - type: OpenAPI
    url: https://raw.githubusercontent.com/Arize-ai/phoenix/main/schemas/openapi.json
  - type: OpenAPI
    url: openapi/phoenix-rest-api-openapi.yml
  - type: JSONSchema
    url: json-schema/phoenix-span.json
  - type: JSONSchema
    url: json-schema/phoenix-dataset.json
  - type: JSONSchema
    url: json-schema/phoenix-experiment.json
  - type: JSONSchema
    url: json-schema/phoenix-annotationresult.json
  - type: JSONSchema
    url: json-schema/phoenix-project.json
  - type: Vocabulary
    url: vocabulary/phoenix-vocabulary.yml
  - type: JSONLDContext
    url: json-ld/phoenix-context.jsonld
  - type: PythonSDK
    url: https://pypi.org/project/arize-phoenix-client/
  - type: TypeScriptSDK
    url: https://www.npmjs.com/package/@arizeai/phoenix-client
  contact:
  - FN: Arize AI Support
    url: https://arize.com/contact/
common:
- type: DomainSecurity
  url: security/phoenix-domain-security.yml
- type: Website
  url: https://arize.com/phoenix/
- type: Documentation
  url: https://arize.com/docs/phoenix
- type: GitHubOrg
  url: https://github.com/Arize-ai
- type: LinkedIn
  url: https://www.linkedin.com/company/arizeai
- type: Blog
  url: https://arize.com/blog/
- type: Pricing
  url: https://arize.com/pricing/
- type: X
  url: https://twitter.com/arizeai
- type: Plans
  url: plans/phoenix-plans-pricing.yml
- type: RateLimits
  url: rate-limits/phoenix-rate-limits.yml
- type: FinOps
  url: finops/phoenix-finops.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com