# Civitai

**Canonical:** https://apis.io/providers/civitai/  
**Website:** https://civitai.com  
**APIs profiled:** 12

Civitai is the largest open community for Stable Diffusion, SDXL, Flux, and video AI models — hosting over a million model checkpoints, LoRAs, embeddings, and VAEs uploaded and rated by creators. Beyond hosting, Civitai operates a hosted AI image, video, audio, and language generation service through its Orchestration API, which races workflows across providers (Flux 1/2, SDXL, SD1, Z-Image, Qwen, Seedream, Grok, WAN 2.1-2.7, Kling, LTX2, Vidu, Veo 3, HunyuanVideo) and supports LoRA training jobs. The Site API exposes the public catalog plus user vault, permissions, and AIR identifier resolution. OAuth 2.0 with PKCE and per-app Buzz spend caps lets third parties build delegated experiences without owning a user's full credit balance. Generation is metered in Buzz, a virtual credit topped up via memberships or one-off packs.

## Kin Score — 57.1 / 100 (strong)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 57.1).

| Facet | Score |
|---|---|
| Discoverability | 59.3 |
| Contract Quality | 69.6 |
| Governance | 9.8 |
| Contract Governance | 9.8 |
| Operational Transparency | 42.1 |
| Developer Ergonomics | 61.9 |
| Commercial Clarity | 73.7 |
| Access Clarity | 73.7 |

## Agent readiness — 41.7 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | no |
| MCP Server | documented |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | documented |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | yes |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Freemium · Self-serve signup — onboarding: self-serve, pricing: freemium, trial: no (confidence: high).

## APIs (12)

- **Civitai OAuth API** — OAuth 2.0 authorization-code with PKCE for third-party apps that act on behalf of a Civitai user. Supports scoped tokens, refresh flow, and per-app Buzz spend caps so a delegate...
- **Civitai Blobs API** — Upload and reference blobs for inputs and outputs.
- **Civitai Creators API** — Users who publish models.
- **Civitai Enums API** — Enumerations used throughout the API.
- **Civitai Images API** — Community-shared generation outputs.
- **Civitai Models API** — Catalog of model checkpoints, LoRAs, embeddings, and VAEs.
- **Civitai ModelVersions API** — Specific versions of a model with files, hashes, and AIR identifiers.
- **Civitai Permissions API** — Permission checks for the current bearer.
- **Civitai Tags API** — Catalog tag taxonomy.
- **Civitai Users API** — User accounts.
- **Civitai Vault API** — A user's saved-model vault (membership tiers).
- **Civitai Workflows API** — Submit and manage generation workflows.

## MCP servers (1)

- **Civitai MCP Server**

## Agentic access (1)

- **Civitai Agentic Access** — 29 operations · 9 acting

## Security (3)

- **Civitai Authentication** — http · 1 scheme
- **Civitai Domain Security** — TLSv1.3 · DMARC
- **Civitai Vulnerability Disclosure** — security.txt · contact published

## Plans (1)

- **Civitai Plans Pricing**

## Tags

Artificial Intelligence, Image-Generation, Video Generation, Stable Diffusion, SDXL, Flux, LoRA, Model Hosting, Community, Generative AI

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/civitai/). Scores are computed from the provider's own public artifacts under a published rubric.