Weights & Biases

aid: weights-and-biases
url: https://raw.githubusercontent.com/api-evangelist/weights-and-biases/refs/heads/main/apis.yml
name: Weights & Biases
kind: 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-images.s3.amazonaws.com/shared/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/
  - url: graphql/weights-and-biases-graphql.md
    type: GraphQL
- 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: kin@apievangelist.com