SiVideoAPISi family
One key and endpoint to generate videos from top models like Veo and Kling, paying per second.
Freemium
AI developer platforms
122 tools · 56 with a free plan or free credits
These platforms give you the building blocks to create AI-powered applications: model APIs for generating text or images, inference hosting to run models at scale, LLM gateways to route requests across providers, and vector databases to store and search embeddings. You can also find developer infrastructure like monitoring, evaluation, and deployment tools.
For example, Anthropic offers Claude for chat and coding, while Groq provides high-speed model inference. LangChain helps you build and monitor AI agents, and Hugging Face lets you host and run open-source models. Ollama runs models locally for privacy. Each tool takes a different approach, so you can pick what fits your workflow.
All AI developer platforms
OpenSISi family
Compare up to three AI models side by side on price, context, and features to choose the right one.
OpenRouter
One API key gives you access to 500+ AI models across 80+ providers with automatic fallback and cost control.
Freemium
Ollama
Lets you run open AI models locally or in the cloud, keeping your data private while cutting costs.
Freemium
Groq
Groq runs large language models at high speed for developers building AI applications.
LangChain
LangChain helps you build, test, deploy, and monitor AI agents across the full development lifecycle.
Together AI
Run, fine-tune, and scale open-source AI models on a full-stack platform built for developers.
Pinecone
A managed vector database that gives AI agents fast, accurate, and scalable knowledge retrieval.
Freemium
Replicate
Run, fine-tune, and deploy open-source AI models through a simple cloud API with one line of code.
Freemium
You.com
Gives your agents and LLMs live web search, clean content, and grounded answers with fresh data.
Freemium
Resemble AI
Detects AI-generated audio, video, and images in real time for enterprises to prevent fraud and verify content.
Tabnine
Deploys AI agents to test and quality-check AI-generated code across your software delivery lifecycle.
Hugging Face
A platform where you can browse, host, and run open-source AI models, datasets, and demo apps.
Freemium
Lovable
Describe your idea in plain language and Lovable builds full-stack apps, websites, and internal tools you can deploy.
Freemium
n8n
Build and control AI agents and workflows visually, with code options and 500+ integrations.
Freemium
Cursor
Cursor is an AI coding agent that turns ideas into code, letting you delegate tasks while you make decisions.
Ideogram
Create, edit, and build with AI image and video models through apps, an API, and agent integrations.
Windsurf
Manage local and cloud coding agents from one desktop IDE, plan tasks, review work, and ship code.
Bolt
Chat with AI to build and deploy full websites, apps, and prototypes without writing code yourself.
Freemium
GitHub Copilot
AI coding assistant that suggests code, answers questions, and automates tasks in your editor and GitHub.
Freemium
Hedra
Create videos, images, and audio with AI models, or build with the developer API.
Sourcegraph Amp
Amp runs coding agents on remote machines you control from anywhere, so you can build and ship without juggling local setups.
Mintlify
Mintlify helps startups and enterprises create self-updating documentation that both humans and AI agents can use.
How to choose among AI developer platforms
- Model APIs: If you want ready-made models without managing infrastructure, use Anthropic or DeepSeek for chat and coding, or fal for image, video, and audio generation.
- Inference hosting: For running open-source models, consider Hugging Face for hosted models or Ollama for local, private deployment with cost savings.
- LLM gateways: To route requests across multiple providers and track costs, use Keywords AI or Manifest, which fix broken calls and monitor token usage.
- Vector databases: For RAG pipelines, LlamaIndex turns complex documents into AI-ready data, while Haystack provides modular building blocks for production-grade agents.
- Developer infrastructure: For monitoring and evaluation, use Langfuse for tracing and improving agents, or Helicone for routing and debugging requests.
AI developer platforms FAQ
Which of these platforms are free to start with?
Several offer free tiers: AI Horde is entirely volunteer-powered and free, Firebase Studio is free for building apps, and Kaggle provides free tools for model evaluation. Ollama is freemium, letting you run open models locally at no cost. Hugging Face also has free options for hosting and running models.
What is the best tool for building AI agents?
LangChain is a popular choice for building, testing, and deploying AI agents across the lifecycle. Haystack offers modular components for RAG pipelines. For a visual approach, n8n lets you build agents with 500+ integrations. If you prefer coding, InitRunner defines agents as YAML files run from the terminal.
How do LLM gateways help with cost and reliability?
Gateways like Keywords AI and Manifest route your API calls to the best model provider, tracking performance and cost. They can automatically fix broken calls and give you a single endpoint for multiple models. This avoids vendor lock-in and helps you manage token usage, which controls expenses.
Is it safe to use these platforms for production apps?
Many platforms prioritize security: BLACKBOX.AI offers end-to-end encryption, and Ollama keeps data local for privacy. For governance, Lyzr provides a control plane for enterprise AI agents, and Mnemom gives auditable proof of agent actions. Always check each tool's compliance and data handling policies.
Related categories
AI agents · AI coding tools · AI research tools · AI data analysis tools · AI app builders · AI image generators