"Free servers available for testing purposes" matching MCP connectors:

Media intelligence analysis for audio, video, and images via the Echosaw MCP server.

Generate marketing images, videos and audios for campaigns, product content, and brand assets.

Convert images to PNG, JPEG, WebP, or AVIF through one public remote MCP tool.

One tool surface for music, image, video, and audio generation across Suno, Grok Imagine, Seedance, Kling, Hailuo, Wan, VEO, Ideogram, and GPT Image 2. Generate, edit, upscale, reframe, and master through one credit pool. Connect in one click with OAuth, no API key required.

Deepfake detection, media intelligence, and invisible watermarking for audio, image, and video via the Resemble AI API, plus docs tools. Remote MCP server (Streamable HTTP) — also published in the official MCP registry as io.github.resemble-ai/resemble-mcp.

A one-stop creative pipeline for AI agents: generate, upscale, enrich, sign, store, mint. 24 paid MCP tools powered by Stable Diffusion, Imagen 3, ESRGAN, and Gemini — plus 53K+ museum artworks from Alexandria Aeternum. Three payment rails, volume discounts, and a free trial to start.

Image header probing, bbox conversion, resize plans and colour maths. 4 of 6 free.

An MCP server for generating images from HTML & CSS or screenshots of URLs using htmlcsstoimage.com.

One API for 100+ AI video, image, music and speech models.

Image processing for AI agents: resize, convert, compress, crop, and web-ready AI-generated images.

Low-poly 3D models and kits for three.js and game engines: search, match, remix, preview.

Generate QR codes; create, edit & track dynamic QR codes with scan analytics. Free, no watermark.

social media video downloader: A comprehensive API for extracting video details, metadata, and.

54+ pay-per-use AI & data tools for agents, payable in USDC via x402 on Solana — no API keys, no subscriptions. AI image, video, music and voice generation (cheaper than official APIs), web search, cited research reports, Claude Opus Q&A, crypto prices, page scraping, domain info and more. Pay only for what you call, straight from the agent wallet. Free directory tool lists all live endpoints.

AI product photography for fashion sellers: Shopify photo audits, seasonal guides, AI try-on.

GPT-4o: GPT-4o (“o” for “omni”) is our versatile, high-intelligence flagship model. It accepts both.

Video, audio, and image processing for AI agents: convert, transcribe, upscale - 150+ operations.

MCP server for Clipkit — gives AI agents a video toolbox via the Clipkit schema.

Remote MCP for AI video, image, music and speech generation.

Every visual AI tool for property listings — staging, enhancement, decluttering, cinematic video.