"MCP servers that don't require API keys" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Solana trading and filtered live data for AI agents. Build swaps via Jupiter, sign locally, submit through PumpView, and read confirmed receipts and per-key volume. SOL/WSOL or USDC on one side. No trading subscription; 0.5% swap fee plus tips (min 0.002 SOL) and network costs. Bearer API key from a PumpView account or wallet-signature onboarding. Public discovery; paid live data. Agent Kit and skill: https://github.com/grinchdev/pumpview-agent-kits
Shared project memory for AI coding agents: decisions, lessons, risks and tasks in one graph.
Pay-per-use APIs for agents: web research, data lookups, and metered endpoints billed to credits.
Cheapest legit PC and console game keys across stores in 40 countries, plus deals and free games.
Run social media from AI: schedule posts on 22 networks, DM automations, analytics.
Turn PDFs, Word, EPUB and X posts into narrated audio with word-level timestamps.
Manage digital signage screens: health, content, casts, emergency messages, proof of play.
Forecasts, official weather alerts, air quality, 20 years of history, and PV and wind production, via the Meteosource API. Hosted, with your own API key.
Execution control plane for agents: capabilities, durable jobs, budgets, receipts, and BYOK.
Savvly MCP: query fund data, model projections, and compare against alternative retirement products.
Free perfume MCP server and fragrance API: 5,400+ perfumes, note pyramids, accords, similar scents.
FalaAI API MCP server: transcribe audio, diagnose conversations, audit compliance (ISO 18295-1).
Get date-specific quotes and book private UK airport and cruise-port transfers through your AI assistant. Compare vehicle options, validate flights, retrieve bookings, amend details and cancel with customer confirmation. No registration required to start, subject to service limits; optional API-key and OAuth access for registered integrations. Transfer fares are payable separately and cancellation conditions apply. Live demo and connection instructions: https://ai.airport-pickups-london.com/ Technical documentation: https://mcp.airport-pickups-london.com/docs
Never-stored live email: read, send and triage Gmail, Outlook / Microsoft 365, or any IMAP mailbox.
Design quality gate for AI-generated UI: score any URL on 45 deterministic checks, A–F grade.
PDFs, images and e-invoices (XRechnung, ZUGFeRD) from templates and JSON, rendered in the EU.
SimFuse is a travel eSIM storefront covering 200+ countries and regions. This connector lets an AI assistant plan a trip, compare live prices and open a checkout for eSIM data. Browsing needs no authentication. What it does: - plan-trip: give the stops (country code and days in each) and it compares one plan covering the whole route against one plan per country against a mix, on live prices, then flags the cheapest complete option and lists any country it cannot cover. - list-destinations: search every country and region SimFuse sells for, with the cheapest plan price per destination. - list-plans and get-plan: browse a destination's plan ladder, filter by data amount, validity and price, and inspect a single plan in detail. - get-plan-coverage: check every country a plan works in before buying. - create-checkout-session: open a checkout for the selected plans at frozen prices. Nothing is charged by that call; payment, completion and cancellation happen over the agentic HTTP API with the returned key. Good to know: prices come back in minor units of the currency you ask for, data allowances are in megabytes, and quotes are offers rather than reservations, so the charged total is computed at checkout. Operated by Qorinx OÜ. Buy directly at https://simfuse.app, agent documentation at https://simfuse.app/agent/.
Hosted agent memory that learns from outcomes, with shared rooms. No key: mcp.mnemoverse.com/mcp
Run Python, Java, C, C++, C#, Go, Rust and 39 more languages, each run in a fresh, offline sandbox.
Engram is a persistent, long-term memory layer for AI agents and assistants. Claude, ChatGPT, Grok, Cursor and any MCP client share one memory, stored as plain markdown notes: your knowledge base, second brain and AI context in one place. No extraction step: the memory is the note itself, so you can read exactly what your AI remembers and fix it. Edit your memory in Obsidian (real-time sync), the web app, or on your phone. Hybrid keyword + semantic search (RAG over your notes) finds exact strings like error messages, config keys and IDs. Remote MCP server over Streamable HTTP with OAuth 2.1; notes encrypted at rest. Https://engram.page https://youtu.be/rwnPeZ-8Lqo?is=NI-N7BduydGAiZlF https://github.com/engram-app/Engram
