Kimi (Moonshot AI)
Moonshot AI (moonshot.ai) is a Chinese foundation model company whose stated mission is "to seek the optimal conversion from energy to intelligence", best known for Kimi, a family of large language models with long-context capabilities (Kimi K3.1 Pro advertises a 1M-token context window) and the consumer Kimi assistant at kimi.com. The Kimi API Platform (platform.kimi.ai, formerly platform.moonshot.ai; platform.kimi.com in China) exposes OpenAI-compatible chat completion, Anthropic Messages-compatible, files, batch, models, balance, and token-estimation APIs, and the company publishes open-weight Kimi models on GitHub.
Kimi (Moonshot AI) publishes 14 API contracts indexed on the APIs.io network, including Moonshot AI Batch API, Moonshot AI Billing API, Moonshot AI Files API, and 11 more. Tagged areas include Artificial Intelligence, LLM, Inference, Long Context, and Kimi.
The Kimi (Moonshot AI) catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 2 Spectral governance rulesets.
Kimi (Moonshot AI)’s developer surface includes CLI, authentication, documentation, API reference, getting-started guide, pricing, signup flow, and 29 more developer resources.
What this lets a business do 2
Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →
Kin Score
APIs 14
Individual APIs this provider publishes, each with its own machine-readable definition.
Moonshot AI Batch API
The Batch API from Moonshot AI — 4 operation(s) for batch.
Moonshot AI Billing API
The Billing API from Moonshot AI — 1 operation(s) for billing.
Moonshot AI Files API
The Files API from Moonshot AI — 3 operation(s) for files.
Moonshot AI Models API
The Models API from Moonshot AI — 1 operation(s) for models.
Moonshot AI Utilities API
The Utilities API from Moonshot AI — 2 operation(s) for utilities.
Kimi Embeddings API
OpenAI-compatible embeddings endpoint that returns vector representations of input text for semantic search, clustering, and retrieval-augmented generation workflows.
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 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.
Moonshot AI Responses API
POST /v1/responses — "Create a model response", an OpenAI Responses-compatible endpoint with function, custom and web-search tools and streaming events, as published in https://...
Moonshot AI Tools API
Official tools for models: POST /v1/tools/search (Web Search Basic), POST /v1/tools/search_pro (Web Search Pro) and POST /v1/tools/fetch (URL Fetch), as published in https://pla...
Kimi (Moonshot AI) Messages API
The Messages API from Kimi (Moonshot AI) — 1 operation(s) for messages.
Kimi (Moonshot AI) Chat Completions API
The Chat Completions API from Kimi (Moonshot AI) — 1 operation(s) for chat completions.
Scroll for all 14
Open Collections 7
Open, tool-agnostic API collections (OpenAPI-derived and Bruno).
Moonshot AI Batch API
OPEN COLLECTIONMoonshot AI Batch Billing API
OPEN COLLECTIONMoonshot AI Batch Chat API
OPEN COLLECTIONMoonshot AI Batch Files API
OPEN COLLECTIONMoonshot AI Batch Models API
OPEN COLLECTIONMoonshot AI Batch Utilities API
OPEN COLLECTIONMoonshot AI API
OPEN COLLECTIONScroll for all 7
Agent Skills 5
Packaged agent skills for driving this provider's APIs from an AI assistant.
kimi-ai-batch-processing
AGENT SKILLkimi-ai-chat-completion
AGENT SKILLkimi-ai-check-balance
AGENT SKILLkimi-ai-file-question-answering
AGENT SKILLkimi-ai-web-research
AGENT SKILLPricing Plans 1
Published pricing tiers and plan structures.
Rate Limits 1
Documented rate limits and quota policies.
Kimi Ai Rate Limits
RATE LIMITSFinOps 1
Cost, billing, and metering signals for API financial operations.
Kimi Ai Finops
FINOPSEvent Specifications 1
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Moonshot AI Chat Completions Streaming API
AsyncAPI 2.6 description of the Moonshot AI streaming chat completions surface. Moonshot's `/v1/chat/completions` endpoint is OpenAI-compatible and, when invoked with `stream: t...
ASYNCAPISemantic Vocabularies 1
JSON-LD contexts and semantic vocabularies used across these APIs.
Kimi Ai Context
JSON-LDSpectral Rules 2
Spectral governance rulesets for linting and validating these APIs.
Kimi (Moonshot AI) — asyncapi rules
SPECTRALKimi (Moonshot AI) API Rules
SPECTRALOpenAPI Overlays 9
Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.
Kimi Ai Anthropic Messages Api Overlay
UNRECORDEDKimi Ai Batch Api Overlay
UNRECORDEDKimi Ai Billing Api Overlay
UNRECORDEDKimi Ai Chat Completions Api Overlay
UNRECORDEDKimi Ai Files Api Overlay
UNRECORDEDKimi Ai Models Api Overlay
UNRECORDEDKimi Ai Responses Api Overlay
UNRECORDEDKimi Ai Tools Api Overlay
UNRECORDEDKimi Ai Utilities Api Overlay
UNRECORDEDScroll for all 9
JSON Schema 15
Standalone JSON Schema definitions for this provider's data models.
BalanceResponse
JSON SCHEMABatchCreateRequest
JSON SCHEMABatchListResponse
JSON SCHEMABatchObject
JSON SCHEMAChatCompletionResponse
JSON SCHEMAEstimateTokenRequest
JSON SCHEMAEstimateTokenResponse
JSON SCHEMAFileDeleteResponse
JSON SCHEMAFileListResponse
JSON SCHEMAFileObject
JSON SCHEMAkimi-k2
JSON SCHEMAkimi-k2-thinking
JSON SCHEMAkimi-k2.5
JSON SCHEMAkimi-k2.6
JSON SCHEMAmoonshot-v1
JSON SCHEMAScroll for all 15
Security Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Agentic Access 1
Recommended x-agentic-access execution contracts for AI agents.
Resources
Get Started 3
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 3
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 7
Pagination, idempotency, versioning, errors, and events
Scroll for all 7
Build 4
SDKs, sample code, and the tooling you integrate with
Access & Security 2
Authentication, authorization, and security posture
Operate 5
Status, limits, changes, and where to get help
Commercial 5
Pricing, plans, and the legal terms of use
Company 4
The organization behind the API
Other 1
Properties that don't map to a standard resource type
Source (apis.yml)
Kimi (Moonshot AI) API — frequently asked questions
Does Kimi (Moonshot AI) have an API?
Yes. APIs.io lists 14 APIs from Kimi (Moonshot AI), including Moonshot AI Batch API, Moonshot AI Billing API and Moonshot AI Files API, and 11 more.
Is there an OpenAPI specification for the Kimi (Moonshot AI) API?
Yes. APIs.io indexes 9 OpenAPI specifications for Kimi (Moonshot AI), each linked for download from this page.
How do I authenticate with the Kimi (Moonshot AI) API?
Kimi (Moonshot AI) uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Kimi Ai Authentication.
How much does the Kimi (Moonshot AI) API cost?
APIs.io lists 11 pricing plans for Kimi (Moonshot AI), with each plan's price, limits and inclusions under Pricing Plans on this page.
Is the Kimi (Moonshot AI) API ready for AI agents?
Kimi (Moonshot AI) has a Kin Score of 66.9 out of 100 (exemplar) and an Agent Readiness score of 35.2 (agent-ready), scored by API Evangelist on 2026-10-31.
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