Weights & Biases

aid: weights-and-biases
url: https://raw.githubusercontent.com/api-evangelist/weights-and-biases/refs/heads/main/apis.yml
name: Weights & Biases
x-type: company
description: >-
  Weights & Biases is the ML developer platform for experiment tracking, model registry,
  artifact management, sweeps, reports, and (Weave) GenAI evaluation. The W&B API is
  primarily a GraphQL endpoint, surfaced through a Python `wandb.Api` SDK.
image: https://kinlane-productions.s3.amazonaws.com/apis-json/apis-json-logo.jpg
tags:
  - ML
  - MLOps
  - Experiment Tracking
  - Model Registry
  - GenAI
created: '2026-05-08'
modified: '2026-05-08'
specificationVersion: '0.19'
apis:
  - aid: weights-and-biases:wandb-graphql-api
    name: W&B GraphQL API
    humanURL: https://docs.wandb.ai/ref/python/public-api/api/
    baseURL: https://api.wandb.ai/graphql
    tags:
      - GraphQL
      - Experiments
      - Runs
      - Artifacts
      - Sweeps
    description: >-
      The W&B Public API is a GraphQL endpoint at `https://api.wandb.ai/graphql`. It
      backs the Python `wandb.Api()` SDK and exposes runs, projects, sweeps, artifacts,
      reports, registries, and automations. Authentication is via API key.
    properties:
      - type: Documentation
        url: https://docs.wandb.ai/ref/python/public-api/api/
      - type: Authentication
        url: https://docs.wandb.ai/guides/track/public-api-guide
      - type: SDK
        title: Python (wandb)
        url: https://docs.wandb.ai/ref/python/
  - aid: weights-and-biases:wandb-import-api
    name: W&B Import API (HTTP)
    humanURL: https://docs.wandb.ai/guides/track/log/
    baseURL: https://api.wandb.ai/files
    tags:
      - HTTP
      - Logging
      - Ingestion
    description: >-
      The wandb client uses an HTTP file/import endpoint to push run metrics, system
      stats, and artifacts. Generally accessed through the SDK rather than directly.
    properties:
      - type: Documentation
        url: https://docs.wandb.ai/guides/track/log/
common:
  - type: Website
    url: https://wandb.ai/
  - type: Portal
    url: https://docs.wandb.ai/
  - type: Pricing
    url: https://wandb.ai/site/pricing
  - type: SourceCode
    title: wandb client
    url: https://github.com/wandb/wandb
  - type: Plans
    url: plans/weights-and-biases-plans-pricing.yml
  - type: RateLimits
    url: rate-limits/weights-and-biases-rate-limits.yml
  - type: FinOps
    url: finops/weights-and-biases-finops.yml
maintainers:
  - FN: Kin Lane
    email: [email protected]