Kimi (Moonshot AI) website screenshot

Kimi (Moonshot AI)

Moonshot AI is a Beijing-based AI lab that develops the Kimi family of long-context multilingual large language models. The consumer assistant is available at kimi.com (and kimi.ai); the developer platform at platform.moonshot.cn (also platform.kimi.com / platform.kimi.ai) exposes an OpenAI-compatible REST API for chat completions, embeddings, file management, fine-tuning, and model listing. Kimi models advertise very long context windows (8K, 32K, 128K, with newer K2.x models pushing toward 256K) and the platform offers multimodal text, image, and video inputs on the flagship Kimi K2.x line. Open-source weights for prior Kimi releases live under the MoonshotAI GitHub organization.

Kimi (Moonshot AI) publishes 6 APIs on the APIs.io network, including Batch API, Billing API, Chat API, and 3 more. Tagged areas include LLM, Long Context, AI, OpenAI Compatible, and Multimodal.

The Kimi (Moonshot AI) catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Kimi (Moonshot AI)’s developer surface includes authentication, documentation, GitHub presence, engineering blog, and 6 more developer resources.

🌐 Visit website 📡 Source on GitHub
42.4/100 developing ▬ flat Agent 46/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreeSelf serve⚡ Free to try
13 APIs
LLMLong ContextAIOpenAI CompatibleMultimodalChina

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 42.4/100 · developing
Contract Quality 16.5 / 25
Developer Ergonomics 4.3 / 20
Commercial Clarity 5.8 / 20
Operational Transparency 3.4 / 13
Governance 5.0 / 12
Discoverability 7.4 / 10
Agent readiness — 46/100 · agent ready
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 8 / 8
Request/Response Examples 7 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 6 / 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/kimi-moonshot: 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 13

Individual APIs this provider publishes, each with its own machine-readable definition.

Kimi Embeddings API

OpenAI-compatible embeddings endpoint that returns vector representations of input text for semantic search, clustering, and retrieval-augmented generation workflows.

Kimi Files API

File management endpoint for uploading documents that can be referenced from chat completions (for example, long-document Q&A and the file_id-based context attachment pattern).

Kimi Fine-Tuning API

Fine-tuning jobs endpoint for customizing Moonshot base models on customer-supplied training data. Mirrors the OpenAI fine-tuning surface.

Kimi Models API

Lists models available to the authenticated account and exposes per-model metadata (context window, modality support, pricing tier).

Kimi Tokenizer API

Helper endpoint exposed by the Moonshot platform for counting tokens against a given model's tokenizer prior to submission, useful for managing long-context budgets.

Kimi Assistant (kimi.com)

Consumer-facing AI assistant at kimi.com (also kimi.ai) powered by the Kimi models. Supports long-document upload, web search grounding, and tool use through a chat UI.

Moonshot Open-Weights Releases

Open-weight Kimi model releases (for example prior Kimi K1 / K2 checkpoints) published under the MoonshotAI GitHub organization for research and self-hosted use.

Kimi (Moonshot AI) Batch API

The Batch API from Kimi (Moonshot AI) — 3 operation(s) for batch.

Kimi (Moonshot AI) Billing API

The Billing API from Kimi (Moonshot AI) — 1 operation(s) for billing.

Kimi (Moonshot AI) Chat API

The Chat API from Kimi (Moonshot AI) — 1 operation(s) for chat.

Kimi (Moonshot AI) Files API

The Files API from Kimi (Moonshot AI) — 3 operation(s) for files.

Kimi (Moonshot AI) Models API

The Models API from Kimi (Moonshot AI) — 1 operation(s) for models.

Kimi (Moonshot AI) Utilities API

The Utilities API from Kimi (Moonshot AI) — 1 operation(s) for utilities.

Scroll for all 13

Open Collections 1

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

Moonshot AI API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Kimi Moonshot Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Kimi Moonshot Rate Limits

2 limits

RATE LIMITS

FinOps 1

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

Kimi Moonshot Finops

FINOPS

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Kimi (Moonshot AI) Streaming Chat Completions API

AsyncAPI definition for Moonshot AI's Kimi `POST /v1/chat/completions` streaming response channel. Moonshot's chat completions surface is OpenAI-compatible. When the request bod...

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Kimi (Moonshot AI) API Rules

8 rules · 1 errors 7 warnings

SPECTRAL

Security Posture 2

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

Kimi Moonshot Authentication

http · 1 scheme

SECURITY

Kimi Moonshot Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Kimi Moonshot Agentic Access

13 operations · 6 acting

13 operations · 6 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

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Other 3

Properties that don't map to a standard resource type

Assistant
Assistant
 Platform
Platform
 HuggingFace
HuggingFace

Source (apis.yml)

apis.yml Raw ↑ 
aid: kimi-moonshot
url: https://raw.githubusercontent.com/api-evangelist/kimi-moonshot/refs/heads/main/apis.yml
name: Kimi (Moonshot AI)
kind: company
description: Moonshot AI is a Beijing-based AI lab that develops the Kimi family of long-context multilingual large language
  models. The consumer assistant is available at kimi.com (and kimi.ai); the developer platform at platform.moonshot.cn (also
  platform.kimi.com / platform.kimi.ai) exposes an OpenAI-compatible REST API for chat completions, embeddings, file management,
  fine-tuning, and model listing. Kimi models advertise very long context windows (8K, 32K, 128K, with newer K2.x models pushing
  toward 256K) and the platform offers multimodal text, image, and video inputs on the flagship Kimi K2.x line. Open-source
  weights for prior Kimi releases live under the MoonshotAI GitHub organization.
accessModel:
  pricing: free
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Free · 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/kimi-moonshot.png
tags:
- LLM
- Long Context
- AI
- OpenAI Compatible
- Multimodal
- China
created: '2026-05-23'
modified: '2026-05-29'
specificationVersion: '0.19'
apis:
- aid: kimi-moonshot:embeddings
  name: Kimi Embeddings API
  description: OpenAI-compatible embeddings endpoint that returns vector representations of input text for semantic search,
    clustering, and retrieval-augmented generation workflows.
  humanURL: https://platform.moonshot.cn/docs
  baseURL: https://api.moonshot.cn/v1/embeddings
  tags:
  - Embeddings
  - Vectors
  properties:
  - type: Documentation
    url: https://platform.moonshot.cn/docs
- aid: kimi-moonshot:files
  name: Kimi Files API
  description: File management endpoint for uploading documents that can be referenced from chat completions (for example,
    long-document Q&A and the file_id-based context attachment pattern).
  humanURL: https://platform.moonshot.cn/docs
  baseURL: https://api.moonshot.cn/v1/files
  tags:
  - Files
  - Documents
  properties:
  - type: Documentation
    url: https://platform.moonshot.cn/docs
- aid: kimi-moonshot:fine-tuning
  name: Kimi Fine-Tuning API
  description: Fine-tuning jobs endpoint for customizing Moonshot base models on customer-supplied training data. Mirrors
    the OpenAI fine-tuning surface.
  humanURL: https://platform.moonshot.cn/docs
  baseURL: https://api.moonshot.cn/v1/fine_tuning
  tags:
  - Fine-Tuning
  - Training
  properties:
  - type: Documentation
    url: https://platform.moonshot.cn/docs
- aid: kimi-moonshot:models
  name: Kimi Models API
  description: Lists models available to the authenticated account and exposes per-model metadata (context window, modality
    support, pricing tier).
  humanURL: https://platform.moonshot.cn/docs
  baseURL: https://api.moonshot.cn/v1/models
  tags:
  - Models
  - Catalog
  properties:
  - type: Documentation
    url: https://platform.moonshot.cn/docs
- aid: kimi-moonshot:tokenizer
  name: Kimi Tokenizer API
  description: Helper endpoint exposed by the Moonshot platform for counting tokens against a given model's tokenizer prior
    to submission, useful for managing long-context budgets.
  humanURL: https://platform.moonshot.cn/docs
  baseURL: https://api.moonshot.cn/v1/tokenizers
  tags:
  - Tokenizer
  - Utilities
  properties:
  - type: Documentation
    url: https://platform.moonshot.cn/docs
- aid: kimi-moonshot:assistant
  name: Kimi Assistant (kimi.com)
  description: Consumer-facing AI assistant at kimi.com (also kimi.ai) powered by the Kimi models. Supports long-document
    upload, web search grounding, and tool use through a chat UI.
  humanURL: https://kimi.com/
  baseURL: https://kimi.com/
  tags:
  - Assistant
  - Consumer
  properties:
  - type: Website
    url: https://kimi.com/
- aid: kimi-moonshot:open-weights
  name: Moonshot Open-Weights Releases
  description: Open-weight Kimi model releases (for example prior Kimi K1 / K2 checkpoints) published under the MoonshotAI
    GitHub organization for research and self-hosted use.
  humanURL: https://github.com/MoonshotAI
  baseURL: https://github.com/MoonshotAI
  tags:
  - Open Weights
  - Research
  properties:
  - type: Repository
    url: https://github.com/MoonshotAI
- aid: kimi-moonshot:kimi-moonshot-batch-api
  name: Kimi (Moonshot AI) Batch API
  description: The Batch API from Kimi (Moonshot AI) — 3 operation(s) for batch.
  humanURL: https://platform.moonshot.cn/docs
  baseURL: https://api.moonshot.cn/v1/chat/completions
  tags:
  - Batch
  properties:
  - type: OpenAPI
    url: openapi/kimi-moonshot-batch-api-openapi.yml
  - type: Documentation
    url: https://platform.moonshot.cn/docs
  - type: AsyncAPI
    url: asyncapi/kimi-moonshot-asyncapi.yml
- aid: kimi-moonshot:kimi-moonshot-billing-api
  name: Kimi (Moonshot AI) Billing API
  description: The Billing API from Kimi (Moonshot AI) — 1 operation(s) for billing.
  humanURL: https://platform.moonshot.cn/docs
  baseURL: https://api.moonshot.cn/v1/chat/completions
  tags:
  - Billing
  properties:
  - type: OpenAPI
    url: openapi/kimi-moonshot-billing-api-openapi.yml
  - type: Documentation
    url: https://platform.moonshot.cn/docs
  - type: AsyncAPI
    url: asyncapi/kimi-moonshot-asyncapi.yml
- aid: kimi-moonshot:kimi-moonshot-chat-api
  name: Kimi (Moonshot AI) Chat API
  description: The Chat API from Kimi (Moonshot AI) — 1 operation(s) for chat.
  humanURL: https://platform.moonshot.cn/docs
  baseURL: https://api.moonshot.cn/v1/chat/completions
  tags:
  - Chat
  properties:
  - type: OpenAPI
    url: openapi/kimi-moonshot-chat-api-openapi.yml
  - type: Documentation
    url: https://platform.moonshot.cn/docs
  - type: AsyncAPI
    url: asyncapi/kimi-moonshot-asyncapi.yml
- aid: kimi-moonshot:kimi-moonshot-files-api
  name: Kimi (Moonshot AI) Files API
  description: The Files API from Kimi (Moonshot AI) — 3 operation(s) for files.
  humanURL: https://platform.moonshot.cn/docs
  baseURL: https://api.moonshot.cn/v1/chat/completions
  tags:
  - Files
  properties:
  - type: OpenAPI
    url: openapi/kimi-moonshot-files-api-openapi.yml
  - type: Documentation
    url: https://platform.moonshot.cn/docs
  - type: AsyncAPI
    url: asyncapi/kimi-moonshot-asyncapi.yml
- aid: kimi-moonshot:kimi-moonshot-models-api
  name: Kimi (Moonshot AI) Models API
  description: The Models API from Kimi (Moonshot AI) — 1 operation(s) for models.
  humanURL: https://platform.moonshot.cn/docs
  baseURL: https://api.moonshot.cn/v1/chat/completions
  tags:
  - Models
  properties:
  - type: OpenAPI
    url: openapi/kimi-moonshot-models-api-openapi.yml
  - type: Documentation
    url: https://platform.moonshot.cn/docs
  - type: AsyncAPI
    url: asyncapi/kimi-moonshot-asyncapi.yml
- aid: kimi-moonshot:kimi-moonshot-utilities-api
  name: Kimi (Moonshot AI) Utilities API
  description: The Utilities API from Kimi (Moonshot AI) — 1 operation(s) for utilities.
  humanURL: https://platform.moonshot.cn/docs
  baseURL: https://api.moonshot.cn/v1/chat/completions
  tags:
  - Utilities
  properties:
  - type: OpenAPI
    url: openapi/kimi-moonshot-utilities-api-openapi.yml
  - type: Documentation
    url: https://platform.moonshot.cn/docs
  - type: AsyncAPI
    url: asyncapi/kimi-moonshot-asyncapi.yml
common:
- type: AgenticAccess
  url: agentic-access/kimi-moonshot-agentic-access.yml
- type: DomainSecurity
  url: security/kimi-moonshot-domain-security.yml
- type: Authentication
  url: authentication/kimi-moonshot-authentication.yml
- type: Website
  url: https://www.moonshot.cn/
- type: Assistant
  url: https://kimi.com/
- type: Platform
  url: https://platform.moonshot.cn/
- type: Documentation
  url: https://platform.moonshot.cn/docs
- type: GitHub
  url: https://github.com/MoonshotAI
- type: HuggingFace
  url: https://huggingface.co/moonshotai
- url: https://www.kimi.com/blog
  type: Blog
integrations:
- name: OpenAI SDK
- name: LangChain
- name: LlamaIndex
- name: Vercel AI SDK
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com