
Apiframe
AI APIs & ModelsOne REST API for AI image, video and music generation, aimed at developers
This category covers AI APIs and model platforms for developers: language, image, speech and embedding models served through an API or hosted inference.
Pricing is normally per token, per image or per second of compute, with different rates per model. Compare rate limits, supported models and data-retention terms on each card, since they affect cost and compliance.
Every card is written and checked by AI agents against the vendor's official pages and has not been tested hands-on; see How we test for details.
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Free AI APIs & Models AI tools (27) →
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One REST API for AI image, video and music generation, aimed at developers

Observability, evaluation and experiments for teams building AI agents

Tracing, evals and monitoring for teams running AI agents in production

Git-native, local API client for REST, GraphQL, gRPC and Websocket

Monitoring as code for APIs, sites and user flows, built for developers and AI agents

Open-source search database for AI apps, with a usage-based cloud plan

Hosted AI model inference through an API, priced per token or per hour

Open source API development tool for building, testing and debugging requests

Hub for sharing ML models, datasets and apps, with paid compute and team plans

Status pages and uptime monitoring with incident tools for teams

Open source agent frameworks plus LangSmith for tracing, evals and deployment

Open source observability, prompt management and evals for LLM apps and agents

AI 3D model generator that turns text or images into printable and game-ready models

Cloud GPU notebooks, machines and model deployment for ML work, now part of DigitalOcean

AI gateway, observability and guardrails for teams running LLM apps in production

API platform for building, testing, mocking and monitoring APIs, with agent tooling

Prompt versioning, evals and tracing for AI teams, with a free plan

Open-source vector search engine with a free managed cloud tier

Pay-per-use cloud API for running, fine-tuning and deploying ML models

Data, evaluations and AI systems for AI labs, governments and large enterprises

Outsourced ecommerce order fulfillment with a warehouse network and quote-based pricing

Memory layer for AI agents: profiles, graph and search via API, plugins, MCP

API and AI gateway with management, portal and governance, self-hosted or cloud

Open-source search engine with typo tolerance, vector search and a hosted cloud

Uptime monitoring for websites, APIs, ports and cron jobs, with public status pages

Open-source vector database with hybrid search, RAG and agents for AI developers

API-first AI search and retrieval for sites and apps, with a free plan

Managed Ray platform for data-heavy AI training and inference across clouds

Inference platform for deploying and scaling open-source and custom AI models

Usage-based inference, fine-tuning and GPU hosting for open AI models, via API

Workspace for trying Gemini models and building apps with the Gemini API

Rent NVIDIA GPUs by the hour: instances, clusters and Superclusters for AI teams


Team drive with a chat in every folder, for sharing project files and context

Experiment tracking and LLM app tracing for AI teams, with a self-hosted server
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Order: ranking score, then verified tools, then name. Sponsored placements never change this order.
| Tool | What it does | Price from | Free trial / plan | Links |
|---|---|---|---|---|
| One REST API for AI image, video and music generation, aimed at developers | $39/mo | 100 starter credits, one-time unlock after a phone check or a $1 payment | Visit site of Apiframe (partner link, opens in a new tab) | |
| Observability, evaluation and experiments for teams building AI agents | $50/mo | Free plan | Visit site of Arize AI (partner link, opens in a new tab) | |
| Tracing, evals and monitoring for teams running AI agents in production | $249/mo | Free plan | Visit site of Braintrust (partner link, opens in a new tab) | |
| Git-native, local API client for REST, GraphQL, gRPC and Websocket | Custom (contact sales) | 14-day free trial of Bruno Ultimate, no credit card required + free plan | Visit site of Bruno (partner link, opens in a new tab) | |
| Monitoring as code for APIs, sites and user flows, built for developers and AI agents | Custom (contact sales) | Free plan | Visit site of Checkly (partner link, opens in a new tab) | |
| Open-source search database for AI apps, with a usage-based cloud plan | $250/mo | Free plan | Visit site of Chroma (partner link, opens in a new tab) | |
| Hosted AI model inference through an API, priced per token or per hour | Custom (contact sales) | No | Visit site of Groq (official site, opens in a new tab) | |
| Open source API development tool for building, testing and debugging requests | Not published | No | Visit site of Hoppscotch (partner link, opens in a new tab) | |
| Hub for sharing ML models, datasets and apps, with paid compute and team plans | $9/mo | Free plan | Visit site of Hugging Face (official site, opens in a new tab) | |
| Status pages and uptime monitoring with incident tools for teams | $20/mo | Free plan | Visit site of Instatus (partner link, opens in a new tab) | |
| Open source agent frameworks plus LangSmith for tracing, evals and deployment | $39/mo | Free plan | Visit site of LangChain (official site, opens in a new tab) | |
| Open source observability, prompt management and evals for LLM apps and agents | $29/mo | Free plan | Visit site of Langfuse (partner link, opens in a new tab) | |
| AI 3D model generator that turns text or images into printable and game-ready models | Custom (contact sales) | Free plan | Visit site of Meshy AI (partner link, opens in a new tab) | |
| Cloud GPU notebooks, machines and model deployment for ML work, now part of DigitalOcean | $12/mo | Free plan | Visit site of Paperspace (partner link, opens in a new tab) | |
| AI gateway, observability and guardrails for teams running LLM apps in production | $49/mo | Free plan | Visit site of Portkey (partner link, opens in a new tab) | |
| API platform for building, testing, mocking and monitoring APIs, with agent tooling | Custom (contact sales) | Enterprise features can be trialed; trial length not stated + free plan | Visit site of Postman (partner link, opens in a new tab) | |
| Prompt versioning, evals and tracing for AI teams, with a free plan | $49/mo | Free plan | Visit site of PromptLayer (partner link, opens in a new tab) | |
| Open-source vector search engine with a free managed cloud tier | Custom (contact sales) | Free plan | Visit site of Qdrant (partner link, opens in a new tab) | |
| Pay-per-use cloud API for running, fine-tuning and deploying ML models | $0.03 | Free plan | Visit site of Replicate (official site, opens in a new tab) | |
| Data, evaluations and AI systems for AI labs, governments and large enterprises | Not published | No | Visit site of Scale AI (partner link, opens in a new tab) | |
| Outsourced ecommerce order fulfillment with a warehouse network and quote-based pricing | Not published | No | Visit site of ShipBob (partner link, opens in a new tab) | |
| Memory layer for AI agents: profiles, graph and search via API, plugins, MCP | $19/mo | Free plan | Visit site of Supermemory (partner link, opens in a new tab) | |
| API and AI gateway with management, portal and governance, self-hosted or cloud | Custom (contact sales) | 48-hour free trial of Tyk Cloud (no credit card); 14-day free trial of Tyk Self- + free plan | Visit site of Tyk (partner link, opens in a new tab) | |
| Open-source search engine with typo tolerance, vector search and a hosted cloud | Custom (contact sales) | Free plan | Visit site of Typesense (partner link, opens in a new tab) | |
| Uptime monitoring for websites, APIs, ports and cron jobs, with public status pages | €10/mo | Free plan | Visit site of UptimeRobot (partner link, opens in a new tab) | |
| Open-source vector database with hybrid search, RAG and agents for AI developers | $45/mo | Free plan | Visit site of Weaviate (partner link, opens in a new tab) | |
| API-first AI search and retrieval for sites and apps, with a free plan | Prices not verified | Free trial available (length not stated) + free plan | Visit site of Algolia (partner link, opens in a new tab) | |
| Managed Ray platform for data-heavy AI training and inference across clouds | Prices not verified | $100 credit to get started + free plan | Visit site of Anyscale (partner link, opens in a new tab) | |
| Inference platform for deploying and scaling open-source and custom AI models | Prices not verified | New accounts come with free credits (amount not stated) + free plan | Visit site of Baseten (partner link, opens in a new tab) | |
| Usage-based inference, fine-tuning and GPU hosting for open AI models, via API | Prices not verified | No | Visit site of Fireworks AI (official site, opens in a new tab) |
Order follows published rules, not a score. Prices are the lowest published monthly-billed plan; see each tool’s pricing table for annual billing and limits.
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