Black Forest Labs website screenshot

Black Forest Labs

Black Forest Labs is the company behind the Flux family of image generation models. The Flux API exposes asynchronous image generation endpoints via global and regional base URLs with model-named paths (e.g. /v1/flux-2-pro). Models include FLUX.2 (flex/pro/max/klein), FLUX.1 Kontext, FLUX1.1 [pro] Ultra, FLUX1.1 [pro], FLUX.1 Fill, and FLUX Schnell. Auth via BFL_API_KEY bearer token.

Black Forest Labs publishes 3 APIs on the APIs.io network: Editing API, Generation API, and Utility API. Tagged areas include AI, Image Generation, Flux, Open Weights, and BFL.

Black Forest Labs’ developer surface includes authentication, documentation, GitHub presence, engineering blog, and 7 more developer resources.

🌐 Visit website 📡 Source on GitHub
34.6/100 thin ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessPaidSelf serve
4 APIs
AIImage GenerationFluxOpen WeightsBFL

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 34.6/100 · thin
Contract Quality 13.6 / 25
Developer Ergonomics 4.3 / 20
Commercial Clarity 5.8 / 20
Operational Transparency 3.4 / 13
Governance 0.0 / 12
Discoverability 7.4 / 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/black-forest-labs: 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.

Flux Image Generation API

REST API for asynchronous image generation across the Flux model family. Submit a generation request, then poll the returned polling_url for the result. Global endpoint at https...

Black Forest Labs Editing API

Image editing tools (fill, expand, erase).

Black Forest Labs Generation API

Image generation endpoints.

Black Forest Labs Utility API

Result polling, credits, fine-tune management.

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Black Forest Labs FLUX API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Black Forest Labs Plans Pricing

2 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Black Forest Labs Rate Limits

2 limits

RATE LIMITS

FinOps 1

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

Black Forest Labs Finops

FINOPS

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Black Forest Labs Authentication

apiKey · 1 scheme

SECURITY

Black Forest Labs Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Black Forest Labs Agentic Access

13 operations · 9 acting

13 operations · 9 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation
Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHub
GitHub

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 3

The organization behind the API

LinkedIn
LinkedIn
 Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: black-forest-labs
url: https://raw.githubusercontent.com/api-evangelist/black-forest-labs/refs/heads/main/apis.yml
name: Black Forest Labs
kind: company
description: Black Forest Labs is the company behind the Flux family of image generation models. The Flux API exposes asynchronous
  image generation endpoints via global and regional base URLs with model-named paths (e.g. /v1/flux-2-pro). Models include
  FLUX.2 (flex/pro/max/klein), FLUX.1 Kontext, FLUX1.1 [pro] Ultra, FLUX1.1 [pro], FLUX.1 Fill, and FLUX Schnell. Auth via
  BFL_API_KEY bearer token.
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Paid · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/black-forest-labs.png
tags:
- AI
- Image Generation
- Flux
- Open Weights
- BFL
created: '2026-05-08'
modified: '2026-05-08'
specificationVersion: '0.19'
apis:
- aid: black-forest-labs:flux
  name: Flux Image Generation API
  description: REST API for asynchronous image generation across the Flux model family. Submit a generation request, then
    poll the returned polling_url for the result. Global endpoint at https://api.bfl.ai with regional alternatives at https://api.eu.bfl.ai
    (GDPR) and https://api.us.bfl.ai. Model-name path pattern /v1/{model}.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.bfl.ai/
  baseURL: https://api.bfl.ai
  tags:
  - Image Generation
  - Flux
  - Async
  - Polling
  - Text-to-Image
  - Image Editing
  properties:
  - type: Documentation
    url: https://docs.bfl.ai/
  - type: Signup
    url: https://dashboard.bfl.ai/
  - type: Pricing
    url: https://bfl.ai/pricing
  - type: LlmsText
    url: https://docs.bfl.ml/llms.txt
  - type: GitHub
    url: https://github.com/black-forest-labs/flux
- aid: black-forest-labs:black-forest-labs-editing-api
  name: Black Forest Labs Editing API
  description: Image editing tools (fill, expand, erase).
  humanURL: https://docs.bfl.ai/
  baseURL: https://api.bfl.ai
  tags:
  - Editing
  properties:
  - type: OpenAPI
    url: openapi/black-forest-labs-editing-api-openapi.yml
- aid: black-forest-labs:black-forest-labs-generation-api
  name: Black Forest Labs Generation API
  description: Image generation endpoints.
  humanURL: https://docs.bfl.ai/
  baseURL: https://api.bfl.ai
  tags:
  - Generation
  properties:
  - type: OpenAPI
    url: openapi/black-forest-labs-generation-api-openapi.yml
- aid: black-forest-labs:black-forest-labs-utility-api
  name: Black Forest Labs Utility API
  description: Result polling, credits, fine-tune management.
  humanURL: https://docs.bfl.ai/
  baseURL: https://api.bfl.ai
  tags:
  - Utility
  properties:
  - type: OpenAPI
    url: openapi/black-forest-labs-utility-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/black-forest-labs-agentic-access.yml
- type: DomainSecurity
  url: security/black-forest-labs-domain-security.yml
- type: Authentication
  url: authentication/black-forest-labs-authentication.yml
- type: LinkedIn
  url: https://www.linkedin.com/company/bflai
- type: Website
  url: https://blackforestlabs.ai/
- type: Documentation
  url: https://docs.bfl.ai/
- type: GitHub
  url: https://github.com/black-forest-labs
- type: Plans
  url: plans/black-forest-labs-plans-pricing.yml
- type: RateLimits
  url: rate-limits/black-forest-labs-rate-limits.yml
- type: FinOps
  url: finops/black-forest-labs-finops.yml
- type: Blog
  url: https://bfl.ai/blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com