Agent Jig
Agent Jig provides agent testing/evaluation.
Verified free offerAlways freeCredits
Agora
Realtime voice, video, conversational AI, avatar, and streaming infrastructure for interactive applications.
10K minutes/mo300 minutesAlways freeCreditsUsage-based
AI Studios (DeepBrain)
Video creation platform using AI avatars, dubbing and translation; provides web studio and limited API.
Verified free offerAlways freeCredits
AI21 Labs
Provider of large language models (e.g., Jurassic, Jamba) offering API access and pre-trained models.
Verified free offerCredits
Alibaba Cloud (Bailian)
Alibaba's generative AI API platform (Qwen) offering text and translation models.
Verified free offerCredits
Amazon Polly
AWS text-to-speech service offering natural sounding voices and multiple languages; integrated with AWS ecosystem.
Verified free offerAlways freeCredits
Amazon Transcribe
Automatic speech recognition service that transcribes audio to text and provides analytics.
60 minutes60 minutes/mo12-months trialCreditsUsage-based
Anthropic (Claude)
LLM-based conversational AI models (Claude family) with API access for text generation and reasoning tasks.
Verified free offerUsage-basedCredits
Anyscale
Platform built on Ray offering scalable AI infrastructure and compute for training and inference.
Verified free offerUsage-basedCredits
Apify
Apify provides web data extraction, crawling, browser automation, and agent tooling.
5 USD/moAlways freeCredits
Arize AX / Phoenix
Arize AX / Phoenix provides AI/agent evaluation and observability.
Verified free offerAlways freeCredits
AssemblyAI
Speech recognition API that provides transcription, summarization and audio intelligence services with generous free usage.
50 USDUsage-basedCredits
AWS Activate / Amazon Bedrock
AWS program providing startups with credits and technical support; includes Amazon Bedrock generative AI services.
Verified free offerUsage-basedCredits
Baseten
Serverless GPU platform for deploying and scaling AI models with a usage-based pricing model.
Verified free offerUsage-basedCredits
Beam Cloud
Serverless GPU cloud for deploying AI inference, task queues and sandboxes with per-second billing.
$30 creditsCredits
Bluejay
Bluejay provides voice/chat agent simulation, evaluation, and observability.
25 USDAlways freeCredits
Braintrust
Braintrust provides AI gateway, observability, evaluation, and prompt tooling.
Verified free offerCredits
Brave Search API
Brave Search API provides AI/web search and grounded answers.
Verified free offerAlways freeCredits
Browserbase
Browserbase provides browser agents, web search/fetch, agent runtime, and model gateway.
Verified free offerCredits
Browserless
Browserless provides browser agents and automation.
1K units/moAlways freeUsage-based
Cartesia
Cartesia provides speech, voice, and voice agents.
1 USD/moAlways freeCredits
Cerebras
Provider of large-scale AI hardware and cloud inference services; offers Cerebras Model Zoo accessible via API.
Verified free offerCredits
Cerebrium
Serverless GPU infrastructure allowing deployment of ML models with per-second billing and auto-scaling.
Verified free offerAlways freeCredits
Cloudflare Workers AI
Serverless AI inference service running on Cloudflare's global edge network, with access to open-source models.
10K neurons/dayAlways freeUsage-based
Cloudinary
Cloudinary provides image/video APIs, transformation, optimization, and delivery.
25 credits/moAlways freeCredits
Cohere
Provides generative language models, embeddings, and reranking services via API with evaluation and production keys.
1K requests/moUsage-based
Composio
Composio provides agent tools, integrations, and tool routing.
20K tool calls/moAlways freeUsage-based
Confident AI / DeepEval
Confident AI / DeepEval provides LLM evaluation/testing and observability.
Verified free offerCredits
D-ID
Generative AI platform for creating digital humans and live agents from images and text.
Verified free offerCredits
Deepgram
Offers speech-to-text, text-to-speech, voice agent and audio intelligence APIs with high accuracy and low latency.
Verified free offerCredits
DeepL API Developer
DeepL API Developer provides translation APIs using the new one-time 1M-character Developer allowance; do not advertise the closed monthly API Free plan to new users.
Verified free offerAlways freeCredits
E2B
E2B provides code execution and cloud sandboxes for AI agents.
Verified free offerCredits
ElevenLabs
Generative voice platform offering high-quality text-to-speech, speech-to-speech and voice cloning in many languages.
Verified free offerAlways freeCredits
Exa
Exa provides AI search, retrieval, crawling, and research.
20 USD/moAlways freeCredits
Extend
Extend provides document AI/OCR and extraction.
Verified free offerCredits
Firecrawl
Firecrawl provides web scraping, crawling, search, and AI data ingestion.
1K credits/moAlways freeCredits
Fireworks AI
LLM inference platform offering serverless access to open-source models with pay-as-you-go pricing.
$1 creditsCredits
Future AGI
Future AGI provides agent evaluation, simulation, observability, gateway, and guardrails.
Verified free offerAlways freeCredits
Galileo
Galileo provides AI evaluation, observability, and reliability.
5K traces/moAlways freeUsage-based
Gladia
Gladia provides speech-to-text and voice agents.
Verified free offerAlways freeCredits
GMI Cloud
GPU cloud service focusing on affordable AI inference; offers free access to select LLM endpoints.
Verified free offerUsage-basedCredits
Google AI Studio (Gemini)
Gemini models accessible through Google AI Studio offer text and multimodal generation; integrates with Vertex AI for production.
Verified free offerUsage-basedCredits
Google Cloud AI Startup Program
Google Cloud startup program offering free credits and support, including generative AI and Vertex AI services.
Verified free offerUsage-basedCredits
Google Cloud Speech-to-Text
Cloud speech recognition API supporting multiple languages and audio encoding formats.
Verified free offerAlways freeCredits
Google Cloud Text-to-Speech
Generates natural-sounding speech from text using Google's deep learning models.
Verified free offerAlways freeCredits
Gradium
Gradium provides TTS, STT, and speech translation.
Verified free offerCredits
Groq Cloud
High-performance inference platform running LLMs on Groq's custom chips with extremely low latency.
Always free
Helicone
Helicone provides LLM observability, gateway, caching, and prompt/evaluation tooling.
10K requests/moAlways freeUsage-based
HeyGen
AI video generator with avatars and translation capabilities; offers both web UI and API.
Verified free offerAlways freeCredits
HoneyHive
HoneyHive provides AI evaluation and observability.
10K events/moAlways freeUsage-based
Hugging Face
Hosts a large catalog of AI models and offers a unified Inference API and hub for model sharing and deployment.
$0.1 creditsCredits
Hyperbolic
GPU hosting platform for AI training and inference with serverless nodes and pay-as-you-go pricing.
Verified free offerUsage-basedCredits
Hyperbrowser
Hyperbrowser provides browser agents and web automation.
Verified free offerCredits
IBM Watson Speech-to-Text
IBM's speech recognition service supporting real-time and batch transcription.
500 minutes500 minutes/moAlways freeCreditsUsage-based
IBM Watson Text-to-Speech
Text-to-speech service with various voices and expressive options.
10K characters/moAlways freeUsage-based
Inference.net
Serverless API platform for generative models offering both free and paid tiers.
Verified free offerAlways freeCredits
JigsawStack
JigsawStack provides a multi-model AI API platform.
1.0M tokens/moAlways freeUsage-based
Jina AI
Jina AI provides embeddings, search, reranking, multimodal, and document AI.
10.0M tokensCredits
Kling AI
Kling AI is a text-to-video platform that lets users generate videos; new users receive 166 free credits per month and can earn bonus credits through content milestones and a referral program.
Verified free offerUsage-basedCredits
Langfuse
Langfuse provides LLM evaluation, tracing, observability, and prompt management.
Verified free offerAlways freeCredits
LangSmith
LangSmith provides AI observability, evaluation, agent tooling, and sandboxes.
Verified free offerAlways freeCredits
LiveKit
LiveKit is an open-source framework and cloud platform for real-time voice and video AI agents; the Build plan allows developers to deploy agents with 1,000 session minutes and $2.50 in model inference credits.
$2.5 credits50 minutesCreditsUsage-based
LlamaCloud / LlamaParse
Hosted document parsing, agentic OCR, structured extraction, and document workflow APIs from LlamaIndex.
10K credits/moAlways freeCredits
Lovo.ai
AI voice generation and cloning platform with web-based studio and API.
Usage-based
Maxim AI
Maxim AI provides agent evaluation, observability, and prompt management.
10K logs/moAlways freeUsage-based
Mem0
Mem0 provides agent memory and personalization.
Verified free offerAlways freeCredits
Microsoft Azure Founders Hub
Program supporting startups with Azure credits, including access to Azure OpenAI services and other AI tools.
$1000 creditsCredits
Milvus (Zilliz Cloud)
Open-source vector database with cloud service (Zilliz Cloud) for high-scale retrieval and similarity search.
5 GBAlways freeUsage-based
Mistral AI (Experiment plan)
French LLM provider Mistral AI offers an experimental plan for developers to try its LLMs with rate-limited free usage.
Verified free offerUsage-basedCredits
Modal
Serverless platform for running Python code and ML workloads on GPUs without managing infrastructure.
$30 creditsCredits
Nanonets
Nanonets provides document AI, OCR/data extraction, and workflow automation.
Verified free offerCredits
Nebius AI
European AI cloud platform offering generative AI models and compute resources via a pay-as-you-go model.
Verified free offerUsage-basedCredits
Nebius AI Startup Program
Startup program offering credits and discounts to AI startups across different tiers.
Verified free offerUsage-basedCredits
NLP Cloud
Cloud API offering NLP models for summarization, translation, sentiment analysis and text generation.
Verified free offerUsage-basedCredits
Novita AI
Generative AI platform providing image and video generation APIs.
Verified free offerUsage-basedCredits
NVIDIA NIM
NVIDIA's generative AI microservices platform providing hosted models via API for text and speech tasks.
Verified free offerUsage-basedCredits
OCR.space
OCR.space provides OCR/document conversion.
25K requests/moAlways freeUsage-based
OpenAI
Provides GPT family of language models, embeddings, image generation (DALL-E) and speech models via APIs.
Verified free offerUsage-basedCredits
OpenRouter
OpenRouter is a unified API platform that provides developers with access to a wide variety of large language models from multiple providers through a standardized interface, simplifying integration and optimizing model usage.
50 requests/dayAlways freeUsage-based
Parea AI
Parea AI provides AI evaluation, observability, human review, and prompt management.
3K logs/moAlways freeUsage-based
Perplexity AI (Startup Program)
Search and generative AI company providing a startup program with API credits and seat licenses.
Verified free offerAlways freeCredits
Photoroom API
Photoroom API provides image editing/background removal as a sandbox allowance.
Verified free offerCredits
Pictory
Tool for turning text or long-form video into short, shareable videos with automatic captioning and summarization.
Verified free offerCredits
Pinecone
Managed vector database enabling similarity search and retrieval-augmented generation at scale.
Verified free offerCredits
Play.ht
Historical text-to-speech and voice generation platform acquired by Meta in July 2025.
Avoid unverified playhtai.com
Usage-based
Portkey
Portkey provides AI gateway, observability, prompt management, and guardrails.
10K logs/moAlways freeUsage-based
Qdrant
Open-source vector database with a managed cloud offering for scalable embeddings and search.
Verified free offerUsage-basedCredits
R2R (SciPhi)
SciPhi's R2R platform offers an agentic retrieval augmented generation (RAG) service with multi-step reasoning, knowledge graphs and retrieval features. The cloud service has a generous free tier requiring no credit card.
Usage-based
remove.bg
remove.bg provides background removal/computer vision.
Verified free offerAlways freeCredits
Replicate
Replicate is a model marketplace and inference platform where developers can run open-source and proprietary AI models via web or API. Select models can be run for free for a limited number of runs before billing is required.
Usage-based
Roark
Roark provides voice-agent simulation/evaluation.
Verified free offerCredits
Roboflow
Roboflow provides computer vision, labeling, training, workflows, and hosted inference.
Verified free offerAlways freeCredits
Runpod
Cloud platform providing on-demand GPUs, serverless compute and multi-node clusters for AI workloads.
1K USDUsage-basedCredits
SambaNova Cloud
Full-stack AI platform providing hosted models and training infrastructure.
Verified free offerCredits
ScaleDown.ai
ScaleDown.ai provides compression, summarization, extraction, and classification.
50.0M tokensCredits
Scaleway Generative APIs
European cloud provider offering generative API endpoints for open-source models with generous free tier.
1.0M tokens60 minutesUsage-basedCredits
SERP Search
SERP Search provides search APIs and agent retrieval.
1K requests/moAlways freeUsage-based
Sightengine
Sightengine provides visual/text moderation, synthetic-media detection, and safety APIs.
2K operations/moAlways freeUsage-based
Speechmatics
Speechmatics provides speech-to-text, text-to-speech, and voice agents.
Verified free offerAlways freeCredits
Stability AI Developer Platform
API platform for image, audio and 3D generation models including Stable Diffusion and Stable Audio.
25 creditsCredits
Synthesia
Generative video platform offering AI avatars, dubbing and voiceovers for business communication.
Verified free offerUsage-basedCredits
Tavily
Tavily provides AI search, web extraction, crawling, and research.
1K credits/moAlways freeCredits
Together AI (Startup Accelerator)
Program offering compute credits and engineering support for AI startups building on the Together platform.
Usage-based
Topaz Labs API
Topaz Labs API provides image/video enhancement and developer API; mark credits as one-time.
0 USDAlways freeCredits
Traceloop
Traceloop provides LLM/agent observability and evaluation.
50K spans/moAlways freeUsage-based
Unstructured
Unstructured provides document AI, parsing, OCR, chunking, enrichment, embeddings, and data ingestion.
15K pages/moAlways freeUsage-based
Upstage (Solar)
Korean AI company providing Solar LLM and related APIs for text generation and chat.
10 USDUsage-basedCredits
Vapi
Vapi provides a developer platform for building and deploying AI-powered voice agents; it offers pay-as-you-go pricing with 10 free concurrent call lines and a $10 credit for new users.
Verified free offerAlways freeCredits
Vercel AI Gateway
API gateway for LLMs enabling request routing and caching across multiple model providers, integrated with the Vercel platform.
Verified free offerUsage-basedCredits
Veryfi
Veryfi provides document capture, OCR, and structured extraction.
100 documents/moAlways freeUsage-based
Voyage AI
Voyage AI provides embeddings, multimodal, search, and reranking.
Verified free offerCredits
Weaviate
Open-source vector database that can be self-hosted or used through Weaviate Cloud Service (WCS).
Verified free offerAlways freeCredits
Weights & Biases Weave
Weights & Biases Weave provides AI evaluation, tracing, and experiment tracking.
Verified free offerAlways freeCredits
xAI (Grok)
xAI provides Grok models for chat, real-time web and X search, coding, multimodal generation, and developer APIs.
Free tier