AI API
Explore 28 curated AI API AI tools on WithAI.Top. Compare standout products by pricing model, use case, and core capabilities.
AI API is evolving fast. This category page on WithAI.Top is designed to help users compare the leading tools, understand common capabilities, and find the best fit for different workflows.
Featured Platforms
APIMart
APIMart is a unified AI API gateway providing access to 500+ models through a single OpenAI-compatible API. It covers chat, image, video, and audio models including GPT-5, Claude, Sora 2, and Veo, with pay-as-you-go credits, health-aware routing, and savings of up to 70% for production teams.
Explore Directory
28 tools
PoYo.ai
PoYo.ai is a unified AI API platform for developers and production teams, offering access to premium models like Seedance 2.5, GPT Image 2, Claude Sonnet 5, and Meshy 6 through one async API. It uses credit-based pricing, free playground access, and only charges for successful generations.
FreeLLMAPI
FreeLLMAPI is an open-source, self-hostable LLM router that aggregates free AI models from 34 providers behind a single OpenAI-compatible endpoint. It tracks quotas and availability in a live catalog, keeps provider keys local, and offers a premium tier that ships new models and fixes to your router the moment they are released.
GPTProto
GPTProto is a global AI API aggregation platform that unifies 200-plus leading models, including Sora, Veo, Kling, Seedance, GPT-5.6, Claude, and Gemini, behind one OpenAI-style key and one shared balance. It charges zero platform fees with free fallback and routing, offers pay-as-you-go top-ups with recharge bonuses, and also provides AI image and video tools. GPTProto suits developers, startups, and enterprises building AI applications across text, vision, speech, and video.
EvoLink
EvoLink is an AI model API platform that unifies access to leading LLM, image, and video models through a single production-ready API. It emphasizes clear model documentation, 99.9% uptime, and pay-as-you-go pricing with free credits for new users and no credit card required. EvoLink suits developers, AI teams, and startups building production applications, agents, and workflows that need reliable multi-model access without vendor lock-in.
Atlas Cloud
Atlas Cloud is an AI API platform giving developers access to 400+ state-of-the-art image, video, audio, and chat models through one OpenAI-compatible endpoint. It hosts models from ByteDance, MiniMax, OpenAI, Google DeepMind, and xAI, with instant keys, no waitlists, and transparent pay-as-you-go pricing from $0.02 per image. New users receive free credits, and enterprise features include high uptime and compliance support.
CherryIN
CherryIN is a unified LLM API gateway that connects developers to 30+ model providers through a single OpenAI-compatible endpoint. Replace your BASE URL once and access chat completions, embeddings, rerank, image, and audio endpoints with better pricing, no subscription, and no vendor lock-in. Free models are available for testing, and paid usage is pay-as-you-go with no monthly commitment.
SocialRouter
SocialRouter is a unified social data API for AI agents and developers. Fetch profiles, posts, likes, comments, reviews, and transcripts from LinkedIn, Instagram, X, Reddit, Facebook, TikTok, YouTube, Pinterest, Bluesky, Snapchat, and Google Maps through one endpoint, with automatic failover across providers. Pay per record with no subscription, plus $1 in free credits to start.
Pollinations
Pollinations is an open-source AI platform with one API for text, image, audio, and video generation, used by 10K weekly active developers. Builders prototype with free Pollen quest credits, integrate via the polli CLI or MCP server, and can earn a share of user spending through App Key earnings. Media uploads, a model catalog, and a community of 500+ live apps round out the platform.
fal
fal provides API access to 1,000+ generative AI models including FLUX, Kling, Seedance, and Wan for developers building AI-powered applications. With pay-per-output pricing on fal.ai and competitive GPU compute from $1.89 per hour for H100, it is the most cost-effective way to run generative AI at scale for teams of all sizes.
DDS Hub
DDS Hub is an AI API aggregation platform that provides discounted access to premium AI models including Claude, Codex, and GLM. With a pay-as-you-go credit system (1 Chinese Yuan = 1 credit), users can access Claude Code, Codex, ZCode, and OpenCode at significantly reduced rates compared to direct API pricing. Ideal for developers, AI agents, and CLI tools looking to reduce API costs while maintaining access to leading AI models.
Novita AI
Novita AI is an AI-native cloud platform that gives developers access to 200+ models through a single API, on-demand GPU cloud instances, and an agent sandbox. It suits AI engineers, startups, and enterprises that want to run LLMs, image, video, and audio models without managing infrastructure.
Inworld AI
Inworld AI provides realtime AI infrastructure for consumer-facing applications, including first-party TTS-2 and Flash text-to-speech, speech-to-text, and a router covering 220+ LLM models. It offers credit-based pricing with a free On-Demand tier and voice cloning, voice design, and realtime API access. The platform supports voice cloning, workspace management, and open-source developer projects.
Chutes
Chutes is a decentralized, open-source serverless AI compute platform built on Bittensor, powering trillions of tokens per month. It serves SOTA open models over an OpenAI-compatible API with confidential TEE compute, per-token pricing with no subscription, private GPU deployments from $1.80/hour, and payment from a Bittensor wallet in TAO. New frontier models appear minutes after release.
BAI
BAI is an AI chat and agent platform that describes itself as foundational economic infrastructure for AI agents. Users access top-tier global models such as MiniMax and DeepSeek anonymously through a borderless payment system, top up credits to unlock extra usage, and use features like memory, leaderboards, API access and app integration. A limited free tier lets new users try models before paying.
Blackbox
Blackbox is a high-trust inference platform for enterprises that run open-weight frontier models. It offers Enterprise Inference with single-tenant, end-to-end encrypted GPU capacity, and a Blackbox Router connecting teams to 300+ hosted models with zero data retention. Agents API, VS Code extension and CLI share one token balance. Pricing is commit-based with published per-model rates and no platform fee.
NanoGPT
NanoGPT is an AI chat and media workspace that aggregates 100+ frontier models from OpenAI, Anthropic, Google and open-source labs into one interface. Users chat with top models, generate images, videos and audio, and call the same models through an API. Chats stay local and are never used for training. Pricing is pay-as-you-go with an optional $12/month Pro subscription.
Cognee
Cognee is an open-source memory platform for AI agents with 30,000 GitHub stars. It captures context, converts it into graph memory, and lets agents recall it across sessions, starting locally and scaling on Cognee Cloud. It works with Claude Code, Codex, MCP, and OpenClaw, with a free tier at $0 per month plus usage-based pricing. Cognee suits developers and teams building persistent memory into agentic applications.
Black Forest Labs
Black Forest Labs is the AI research lab behind the FLUX model family, offering state-of-the-art image and video generation through a simple API. FLUX 3 generates up to 20-second videos with native audio, while FLUX.2 models cover high-fidelity images at competitive per-megapixel prices. Open weights are available for self-hosting.
Scale AI
Scale AI is an enterprise AI platform that helps organizations build, evaluate, and deploy reliable AI systems, covering data annotation, RLHF, model evaluation, and physical AI. It serves frontier labs, government agencies, and large enterprises including Meta, Mayo Clinic, and British Petroleum, combining expert human-in-the-loop data production with automated evaluation tools. Pricing is custom and tailored to enterprise requirements.
Sonoteller
Sonoteller is an AI music analysis engine that listens to a song and creates a comprehensive profile of its lyrics and music. It identifies genres, subgenres, moods, instruments, vocals, BPM, key, language, explicit content, and the golden minute, in about a minute per song. A free demo works with YouTube links, and API endpoints allow labels and publishers to auto-tag catalogs at scale. Sonoteller is now part of Chordal.
Uncensored AI
Uncensored AI is a private AI chat platform providing access to 50+ frontier uncensored models for chat, voice, image generation, and API use. It supports real-time web search, anonymous conversations, code mode with live data fetching, vision models, and multilingual voice interactions. New models are added the same day they launch. Enjoyed by 10m+ users, it offers free access, premium subscriptions, and a developer API.