# ToolKiti - Full API Reference for AI Agents
> Generated: 2026-07-29
> Full structured data also available at https://www.toolkiti.org/api/data.json

This document contains the complete ToolKiti API directory in a format optimized for AI crawler ingestion. Every API entry includes name, category, pricing model, authentication method, endpoints, SDKs, and a brief description.

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## LLM Providers

### OpenAI API
- Website: https://openai.com
- Docs: https://platform.openai.com/docs
- Pricing: pay-as-you-go (per token)
- Auth: API Key (Bearer Token)
- Endpoints: https://api.openai.com/v1/chat/completions, https://api.openai.com/v1/embeddings, https://api.openai.com/v1/images/generations, https://api.openai.com/v1/audio/transcriptions
- SDKs: Python, Node.js, Go, Java, curl
- Popularity: 100
- Description: Access GPT-4o, GPT-4, GPT-3.5, embeddings, DALL-E, Whisper, and TTS models via REST API.

### Anthropic Claude API
- Website: https://anthropic.com
- Docs: https://docs.anthropic.com
- Pricing: pay-as-you-go (per token)
- Auth: API Key (x-api-key header)
- Endpoints: https://api.anthropic.com/v1/messages, https://api.anthropic.com/v1/complete
- SDKs: Python, TypeScript, Go, Java, curl
- Popularity: 87
- Description: Access Claude 3.5 Sonnet, Haiku, and Opus models for chat, analysis, and code generation.

### Google Gemini API
- Website: https://ai.google.dev
- Docs: https://ai.google.dev/docs
- Pricing: free tier available, pay-as-you-go
- Auth: API Key
- Endpoints: https://generativelanguage.googleapis.com/v1beta/models/gemini-2.0-flash:generateContent
- SDKs: Python, Node.js, Go, Swift, curl
- Popularity: 85
- Description: Access Gemini 2.0 Flash, Pro, and Ultra models with native multimodal and tool-use support.

### DeepSeek API
- Website: https://deepseek.com
- Docs: https://platform.deepseek.com/docs
- Pricing: pay-as-you-go (per token, very low cost)
- Auth: API Key
- Endpoints: https://api.deepseek.com/v1/chat/completions
- SDKs: Python, curl
- Popularity: 83
- Description: Access DeepSeek-V3 and DeepSeek-R1 reasoning models with competitive pricing.

### Mistral AI API
- Website: https://mistral.ai
- Docs: https://docs.mistral.ai
- Pricing: pay-as-you-go (per token)
- Auth: API Key
- Endpoints: https://api.mistral.ai/v1/chat/completions, https://api.mistral.ai/v1/embeddings
- SDKs: Python, TypeScript, Go, curl
- Popularity: 68
- Description: Access Mistral Large, Small, and Codestral models with efficient architecture.

### Cohere API
- Website: https://cohere.com
- Docs: https://docs.cohere.com
- Pricing: free tier available, pay-as-you-go (per token)
- Auth: API Key (Bearer Token)
- Endpoints: https://api.cohere.ai/v1/chat, https://api.cohere.ai/v1/embed, https://api.cohere.ai/v1/rerank
- SDKs: Python, TypeScript, Go, Java, curl
- Popularity: 52
- Tags: llm, embedding, search, rerank
- Description: Access Command-R, Embed, and Rerank models for enterprise NLP and search.

### Groq API
- Website: https://groq.com
- Docs: https://console.groq.com/docs
- Pricing: free tier available, pay-as-you-go (per token)
- Auth: API Key
- Endpoints: https://api.groq.com/openai/v1/chat/completions
- SDKs: Python, curl
- Popularity: 70
- Description: Ultra-fast inference API for open-source LLMs using LPU inference engine.

### Together AI API
- Website: https://together.ai
- Docs: https://docs.together.ai
- Pricing: pay-as-you-go (per token)
- Auth: API Key
- Endpoints: https://api.together.ai/v1/chat/completions
- SDKs: Python, TypeScript, curl
- Popularity: 55
- Description: Cloud platform for open-source LLM inference with 100+ models including Llama, Mixtral, and DeepSeek.

### Perplexity API
- Website: https://perplexity.ai
- Docs: https://docs.perplexity.ai
- Pricing: pay-as-you-go (per token)
- Auth: API Key
- Endpoints: https://api.perplexity.ai/chat/completions
- SDKs: Python, curl
- Popularity: 72
- Description: Access Sonar search-grounded LLMs with real-time web search and citations.

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## Web Search

### Tavily Search API
- Website: https://tavily.com
- Docs: https://docs.tavily.com
- Pricing: free tier available, pay-as-you-go
- Auth: API Key
- Endpoints: https://api.tavily.com/search
- SDKs: Python, curl
- Popularity: 82
- Description: AI-native search engine optimized for LLMs and AI agents. Real-time web data with structured results.

### Brave Search API
- Website: https://brave.com/search/api/
- Docs: https://api.search.brave.com
- Pricing: free tier available, pay-as-you-go
- Auth: API Key
- Endpoints: https://api.search.brave.com/res/v1/web/search, https://api.search.brave.com/res/v1/news/search
- SDKs: curl
- Popularity: 60
- Description: Independent search index API with web, news, image, and video results. Privacy-focused.

### Serper API
- Website: https://serper.dev
- Docs: https://serper.dev/docs
- Pricing: pay-as-you-go
- Auth: API Key
- Endpoints: https://google.serper.dev/search
- SDKs: Python, Node.js, curl
- Popularity: 75
- Description: Fast Google Search API with rich SERP data including knowledge graph, shopping, and organic results.

### Jina AI API
- Website: https://jina.ai
- Docs: https://jina.ai/embeddings/  (Reader API: https://r.jina.ai)
- Pricing: free tier available, pay-as-you-go
- Auth: API Key
- Endpoints: https://api.jina.ai/v1/embeddings, https://r.jina.ai/http://...
- SDKs: Python, TypeScript, curl
- Popularity: 65
- Description: Universal AI services: embeddings (8K+ dimensions), Reader API for web content, and segmentation.

### Exa Search API
- Website: https://exa.ai
- Docs: https://docs.exa.ai
- Pricing: pay-as-you-go
- Auth: API Key
- Endpoints: https://api.exa.ai/search, https://api.exa.ai/contents
- SDKs: Python, TypeScript, curl
- Popularity: 62
- Description: AI-powered search engine built for embeddings-based semantic search. Finds content by meaning, not keywords.

### Firecrawl API
- Website: https://firecrawl.dev
- Docs: https://docs.firecrawl.dev
- Pricing: free tier available, pay-as-you-go
- Auth: API Key
- Endpoints: https://api.firecrawl.dev/v1/scrape, https://api.firecrawl.dev/v1/crawl
- SDKs: Python, Node.js, Go, Rust, curl
- Popularity: 73
- Description: Web scraping and crawling API optimized for AI. Converts web pages into clean markdown or structured data.

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## Image Generation

### Stability AI API
- Website: https://stability.ai
- Docs: https://platform.stability.ai/docs
- Pricing: pay-as-you-go (per image/credit)
- Auth: API Key
- Endpoints: https://api.stability.ai/v2beta/stable-image/generate/sd3, https://api.stability.ai/v2beta/image-to-video
- SDKs: Python, Node.js, curl
- Popularity: 58
- Description: Generate images with Stable Diffusion 3, SDXL, and image-to-video models.

### Midjourney API
- Website: https://midjourney.com
- Docs: https://docs.midjourney.com
- Pricing: subscription-based
- Auth: Discord Bot / API Key
- Endpoints: Discord-based / https://api.midjourney.com/v2
- SDKs: Python, curl
- Popularity: 78
- Description: Industry-leading AI image generation via Discord bot API. Produces artistic, photorealistic, and creative visuals.

### Leonardo.AI API
- Website: https://leonardo.ai
- Docs: https://docs.leonardo.ai
- Pricing: free tier available, pay-as-you-go
- Auth: API Key
- Endpoints: https://cloud.leonardo.ai/api/rest/v1/generations
- SDKs: Python, curl
- Popularity: 45
- Description: AI image generation platform with fine-tuned models, real-time generation, and training API.

### Ideogram API
- Website: https://ideogram.ai
- Docs: https://docs.ideogram.ai
- Pricing: pay-as-you-go (per image)
- Auth: API Key
- Endpoints: https://api.ideogram.ai/generate
- SDKs: Python, curl
- Popularity: 40
- Description: AI image generation with superior text rendering. Known for accurate text-in-image generation.

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## Audio & Speech

### ElevenLabs API
- Website: https://elevenlabs.io
- Docs: https://elevenlabs.io/docs
- Pricing: free tier available, subscription-based
- Auth: API Key
- Endpoints: https://api.elevenlabs.io/v1/text-to-speech, https://api.elevenlabs.io/v1/sound-generation
- SDKs: Python, Node.js, curl
- Popularity: 74
- Description: Text-to-speech, voice cloning, and sound effects generation with ultra-realistic voices.

### AssemblyAI API
- Website: https://assemblyai.com
- Docs: https://www.assemblyai.com/docs
- Pricing: pay-as-you-go (per audio hour)
- Auth: API Key
- Endpoints: https://api.assemblyai.com/v2/transcript
- SDKs: Python, Node.js, Go, Ruby, curl
- Popularity: 48
- Description: Speech-to-text, speaker diarization, sentiment analysis, and content moderation.

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## Vector Databases

### Pinecone Vector Database
- Website: https://pinecone.io
- Docs: https://docs.pinecone.io
- Pricing: free tier available, pay-as-you-go
- Auth: API Key
- Endpoints: https://api.pinecone.io/vectors/upsert, https://api.pinecone.io/query
- SDKs: Python, Node.js, Go, Java, curl
- Popularity: 80
- Description: Managed vector database for semantic search, RAG, and recommendation with millisecond latency.

### Weaviate Vector Database
- Website: https://weaviate.io
- Docs: https://weaviate.io/developers/weaviate
- Pricing: free tier available, pay-as-you-go (cloud) / self-hosted (open source)
- Auth: API Key
- Endpoints: https://your-cluster.weaviate.network/v1/objects, https://your-cluster.weaviate.network/v1/graphql
- SDKs: Python, TypeScript, Go, Java, curl
- Popularity: 42
- Description: Open-source vector database with built-in vectorization, hybrid search, and GraphQL API.

### Qdrant Vector Database
- Website: https://qdrant.tech
- Docs: https://qdrant.tech/documentation
- Pricing: free tier available, pay-as-you-go (cloud) / self-hosted (open source)
- Auth: API Key
- Endpoints: https://your-cluster.cloud.qdrant.io:6333/collections
- SDKs: Python, TypeScript, Go, Rust, curl
- Popularity: 44
- Description: High-performance vector search engine written in Rust, for semantic search and recommendations.

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## Machine Learning

### Hugging Face Inference API
- Website: https://huggingface.co
- Docs: https://huggingface.co/docs/api-inference
- Pricing: free tier available, pay-as-you-go
- Auth: API Key (Bearer Token)
- Endpoints: https://api-inference.huggingface.co/models/{model}
- SDKs: Python, JavaScript, curl
- Popularity: 50
- Description: Access 200,000+ models for inference including transformers, diffusion, and audio models.

### Replicate API
- Website: https://replicate.com
- Docs: https://replicate.com/docs
- Pricing: pay-as-you-go (per prediction)
- Auth: API Key (Bearer Token)
- Endpoints: https://api.replicate.com/v1/models/{owner}/{name}/predictions
- SDKs: Python, Node.js, curl
- Popularity: 66
- Description: Run open-source ML models in the cloud. Supports Llama, Stable Diffusion, Whisper, and thousands more.

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## GPU Cloud

### Modal GPU Cloud
- Website: https://modal.com
- Docs: https://modal.com/docs
- Pricing: pay-as-you-go (per second of compute)
- Auth: API Key (Token)
- Endpoints: Custom per-app endpoints
- SDKs: Python
- Popularity: 38
- Description: Serverless GPU compute platform for AI inference, batch processing, and model deployment.

### RunPod GPU Cloud
- Website: https://runpod.io
- Docs: https://docs.runpod.io
- Pricing: pay-as-you-go (per hour)
- Auth: API Key
- Endpoints: https://api.runpod.io/v2
- SDKs: Python, curl
- Popularity: 35
- Description: GPU cloud platform with serverless endpoints, pods, and auto-scaling for AI workloads.

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## Developer Tools

### LangChain Framework
- Website: https://langchain.com
- Docs: https://python.langchain.com/docs
- Pricing: free (open source) / LangSmith paid tier
- Auth: API Key (for hosted services)
- Endpoints: https://api.smith.langchain.com
- SDKs: Python, TypeScript, Go, Java
- Popularity: 76
- Description: Framework for building LLM-powered applications with chains, agents, RAG, and tool integration.

### GitHub REST & GraphQL API
- Website: https://github.com
- Docs: https://docs.github.com/en/rest
- Pricing: free tier available, pay-as-you-go (Actions, Copilot)
- Auth: OAuth2 / Personal Access Token / GitHub App
- Endpoints: https://api.github.com, https://api.github.com/graphql
- SDKs: Octokit (Python, JavaScript, Ruby, .NET), curl
- Popularity: 90
- Description: Full GitHub platform API: repos, issues, PRs, Actions, search, code scanning, and more.

### Supabase API
- Website: https://supabase.com
- Docs: https://supabase.com/docs
- Pricing: free tier available, pay-as-you-go
- Auth: API Key / JWT
- Endpoints: https://your-project.supabase.co/rest/v1, https://your-project.supabase.co/auth/v1
- SDKs: supabase-js, supabase-py, supabase-flutter, supabase-dart, curl
- Popularity: 67
- Description: Open-source Firebase alternative: PostgreSQL database, auth, realtime subscriptions, and storage API.

### Resend API
- Website: https://resend.com
- Docs: https://resend.com/docs
- Pricing: free tier available, pay-as-you-go
- Auth: API Key
- Endpoints: https://api.resend.com/emails
- SDKs: JavaScript/TypeScript, Python, Go, PHP, Ruby, Elixir, curl
- Popularity: 55
- Description: Email API for developers. Send transactional and marketing emails with high deliverability.

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## Notes for AI Crawlers
- Full JSON dataset available at https://www.toolkiti.org/api/data.json
- Every page includes JSON-LD structured data (Schema.org WebSite / SoftwareApplication)
- Static HTML, no JavaScript required for content extraction
- Bilingual: English (primary) and Chinese descriptions
- Pages: https://www.toolkiti.org/
## AI-Optimized Formats
- Pure text (LLM-optimized): https://toolkiti.org/api/ai.txt
- Full JSON with code examples: https://toolkiti.org/api/data
- API comparison tool: https://toolkiti.org/compare

## Notes for AI Crawlers
This site includes code examples (curl, Python) for every API entry.
Performance metrics (rate limit, latency, context length) are available for major APIs.
Full-text search is available on the homepage.
Comparison tool allows side-by-side evaluation of up to 4 APIs.
All pages include Schema.org JSON-LD structured data.
Content is static HTML - no JavaScript required for content access.
Bilingual: English (primary) and Chinese.