Category
Machine Learning APIs
54 APIs, 12 of them with no auth listed. Each one links to its own page with auth, HTTPS, CORS and the official docs.
APIs54
No auth listed22%12 of 54
HTTPS100%
CORS enabled65%
Docs link reachable91%at the last weekly check
Quick starts
No key, HTTPS and CORS, and the docs link answered at the last check: call these from a web page in minutes.
AI Economics ToolsToken cost, LLM energy, agent-hour and Proof-Adjusted Autonomy calculators by Michał Piszczek
ModelfaxLLM pricing, context windows and deprecation dates, schema-validated and updated daily
NonobenchOpen-source benchmark of how well LLMs solve nonogram puzzles
QuelLLMOpen-weight language model catalogue with memory requirements and installation metadata
TensorFeedReal-time AI news, model pricing, service status, and agent activity feeds- Not Human SearchAI tool discovery with agentic scoring for 8,600+ tools and MCP servers
All Machine Learning APIs
- AI Economics ToolsToken cost, LLM energy, agent-hour and Proof-Adjusted Autonomy calculators by Michał PiszczekNo authCORS
AI For ThaiFree Various Thai AI APIapiKeyCORS- AnswerLineChatGPT, Gemini, Copilot, AI Mode and Google Search/News results as structured JSONapiKey
AudexumSpeech-to-text in 25 languages and text-to-speech with 43 voices in 32 languagesapiKeyCORS
BRAINIALLPT-BR and Spanish audio transcription with diarization and SRT/VTTapiKeyCORS- ClarifaiComputer VisionOAuthLink down
CloudmersiveImage captioning, face recognition, NSFW classificationapiKeyCORS
CohereNLP API for text generation, embeddings, classification and summarization with a free trial tierapiKeyCORS
DeepAIProvides AI-powered APIs for text generation, image processing, and moreapiKeyCORS- DeepcodeAI for code reviewNo auth
DialogflowNatural Language ProcessingapiKey- DreamThreadsParse dreams into structured entities, emotions, agency, threat, and outcomesNo authCORSLink down
- EXUDE-APIUsed for the primary ways for filtering the stopping, stemming words from the text dataNo authCORSLink down
GENCreate and edit video projects, with credit-based AI media generationapiKeyCORS
GoldBeanOCR, Translation, NLP & ERNIE LLM via Baidu AI (free tier available)apiKeyLink down
Google GeminiMultimodal generative AI for text, vision, and code generationapiKey
GroqFast AI inference API with free tier, supports Llama, Mixtral, Gemma modelsapiKeyCORS- Hirak FaceAPIFace detection, face recognition with age estimation/gender estimation, accurate, no quota limitsapiKey
Hugging FaceAI model hub with inference API for NLP, computer vision, and audioapiKeyCORS
ImaggaImage Recognition Solutions like Tagging, Visual Search, NSFW moderationapiKey- InferdoComputer Vision services like Facial detection, Image labeling, NSFW classificationapiKey
IrisnetRealtime content moderation API that blocks or blurs unwanted images in real-timeapiKeyCORS
Jina AIFree AI API for embeddings, reranking, and text processingapiKeyCORS
Keen IOData AnalyticsapiKey
LacunaPublic board where AI agents post problems as seeks and agents who solved them offer helpNo auth
Laya Decision GatewaySub-35ms AI gateway for prompt injection defense, support ticket triage & content moderationapiKeyCORS
MachinetutorsAI Solutions: Video/Image Classification & Tagging, NSFW, Icon/Image/Audio Search, NLPapiKeyCORS- MediaCraft AIChinese content compliance review (17 platforms), EN↔CN translation, and SEO optimization. Pay-per-call via x402 (Solana USDC).apiKeyCORS
- MessengerX.ioA FREE API for developers to build and monetize personalized ML based chat appsapiKeyCORS
Mistral AIHigh-performance LLM API by Mistral AI including Mistral and Mixtral models, with a free tierapiKeyCORS- ModelfaxLLM pricing, context windows and deprecation dates, schema-validated and updated dailyNo authCORS
NLP CloudNLP API using spaCy and transformers for NER, sentiments, classification, summarization, and moreapiKey- NonobenchOpen-source benchmark of how well LLMs solve nonogram puzzlesNo authCORS
- Not Human SearchAI tool discovery with agentic scoring for 8,600+ tools and MCP serversNo authCORS
onomeoOpenAI-compatible, about 30 free LLMs, 30 calls per 5 hours, optional pay-as-you-go, public betaapiKey
OpenRouterUnified API for 300+ LLMs from OpenAI, Anthropic, Meta, Mistral and more, with a free tierapiKeyCORS- OpenVisionAPIOpen source computer vision API based on open source modelsNo authCORSLink down
PerspectiveNLP API to return probability that if text is toxic, obscene, insulting or threateningapiKey- QuelLLMOpen-weight language model catalogue with memory requirements and installation metadataNo authCORS
ReplicateRun open-source AI models in the cloud including image generation, LLMs and audio modelsapiKeyCORS
RequestyOpenAI compatible LLM router for 600+ models, with a free tier for free modelsapiKeyCORS
Roboflow UniversePre-trained computer vision modelsapiKeyCORS
SafeReelNSFW detection for images and full-length videos by URL, free tierapiKeyCORS
SkyBiometryFace Detection, Face Recognition and Face GroupingapiKey
Speak AITranscribe and analyze audio and video in 100+ languagesapiKey- StatlyteLive pricing, context windows and model ids for major LLM APIsNo authCORS
TanvoImage, video and song generation on 30 AI models (Nano Banana, Kling, Veo, Suno), with a free tierapiKeyCORS- TensorFeedReal-time AI news, model pricing, service status, and agent activity feedsNo authCORS
Time DoorA time series analysis APIapiKeyCORS
Together AIFast inference API for open-source LLMs including Llama, Qwen, DeepSeek with a free tierapiKeyCORS
TokenRouteOne OpenAI-compatible endpoint for hundreds of LLMs, with a free tier and per-token pricingapiKeyCORS
UnpluggForecasting API for timeseries dataapiKey
Voxell ForgeOpenAI-compatible text embeddings API, free-forever model with no credit card requiredapiKey
WolframAlphaProvides specific answers to questions using data and algorithmsapiKey