"Free tools or resources that do not require an API" matching MCP connectors:

docuwriterAOAuth via extension

ai.docuwriter

Generate, search, and manage codebase documentation on DocuWriter.ai. 72 tools incl. Autopilot.

Track partnership work, log mission hours, and see what needs your approval on 1lev1.com.

Lexpad – Vocabulary Notebook & FlashcardsOAuth via extension

app.lexpad

Lexpad is a vocabulary notebook and flashcard app with spaced repetition (Leitner boxes) for learning words in 81 languages, including English, Spanish, French, German, Arabic, Turkish and Persian. Connect it to ChatGPT, Claude or any MCP client, and your assistant works with the words you collected yourself: • Save words and phrases you ask for, with meanings, example sentences and a level (A1–C2). • Find anything: browse and filter your whole notebook by due, new, struggling, starred or mastered words, level, topic or date added. • Practise: get quizzed on today's due words. Every answer counts as real review, moves the word through the Leitner boxes and keeps your streak. • Edit: fix spellings, change or reorder meanings, star or retire words. Deleting needs its own permission, and the assistant asks first. Lexpad never invents vocabulary: it only works with the words you add, by hand, from a text, or imported from Anki or a Kindle. Sign-in is OAuth on a Lexpad page; your password is never shared, and you can disconnect at any time. Works alongside the Lexpad web app and Android app. Guide and example prompts: https://lexpad.app/features/assistants

Empresas do Brasil (CNPJ) e CRM da Oportunidados: busca, ficha completa, conta e funil.

TradeOS MCP: ticker search, My Agent, chart TA, macro news. npm stdio or HTTP.

Author rules from policy docs, then decide: a Rete engine gives the verdict, an LLM explains why.

BrowserlessOAuth via extension

io.browserless.mcp

Browserless MCP - Cloud browser automation for AI agents with bot-detection bypass. Scrape and crawl sites, take screenshots, generate PDFs, run headless Chrome functions or an autonomous browsing agent, all through MCP.

DocsieOAuth via extension

io.docsie.app

Docsie MCP brings your documentation workflow directly into your AI assistant. Create, edit, and publish documentation without switching between tools. Convert videos into structured documentation instantly, run compliance analysis across text, audio, and video content, and use semantic search to find exactly what you need across your knowledge base. Whether you're building product documentation, SOPs, user guides, or technical manuals, Docsie MCP makes documentation faster, smarter, and powered

Nimble MCPOAuth via extension

com.nimbleway.mcp

The Nimble MCP Server gives AI agents the ability to search, extract, map, crawl, and structure data from any website in real time. It exposes Nimble’s full web data platform as MCP tools that any compatible AI client can use.

Windframe MCPOAuth via extension

dev.windframe.mcp

Provides style context & tokens to design or restyle web UIs in any framework

Schedule and publish posts to 10 social platforms (X, Instagram, TikTok, YouTube, Facebook, LinkedIn, Pinterest, Bluesky, Threads, Google Business) from one account, with scheduling, media upload, per-platform overrides, and post analytics.

Send and receive faxes from any MCP-compatible AI assistant using the Fax.Plus API

World MonitorCOAuth via extension

app.worldmonitor

Live markets, conflicts, country risk, chokepoints, energy, and China decision signals. 89 tools.

Provides style context & tokens to design or restyle web UIs in any framework

runcomfy-mcpAOAuth via extension

io.github.runcomfy-com

Remote MCP for RunComfy: ComfyUI deployments, hosted models, LoRA training. 31 tools.

crispyOAuth via extension

sh.crispy

Full LinkedIn access for AI agents: leads, messaging, and campaigns with safe limits built in.

Lowers your AWS bill by helping you clean up and optimize your setup

Riel de pago contra entrega (COD) para LATAM: crea órdenes y cobra con Dropi vía MCP.

Vietnam VPS via VietQR — create a machine and put an app online.

Off-Nadir DeltaOAuth via extension

com.offnadir-delta

From first signal to satellite evidence: live world-event intelligence and collection planning.