"MCP servers that don't require API keys" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Pay-per-use APIs for agents: web research, data lookups, and metered endpoints billed to credits.
Build, validate and deploy workflows as Cloudflare Workers in your own account, with approval.
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
Structural FEM for AI agents: frames, plates, buckling, seismic and Eurocode checks, solved locally.
Track and manage how your brand appears in AI answers: rank, mentions, sentiment, share of voice.
Free perfume MCP server and fragrance API: 6,000+ perfumes, note pyramids, accords, similar scents.
Total CMS docs, guides and CMS comparisons: Twig, field types, schemas, CLI, REST API and releases.
Your servers, monitors, incidents, DNS, domains and certificates in InfraNest, in your AI assistant.
Server-side conversion tracking for Meta, TikTok, etc. Set up tracking and ask about events.
Load testing and synthetic monitoring platform: test with Playwright, Browser Bot, or Protocol Bots.
Climate and disaster risk for any place or property: flood risk, heat waves, storms and hurricanes, wildfires, earthquakes, sea level rise and 7-day weather risk. Is it safe to go there? Ask about any city, address or coordinates and get this week's weather risk (heat, cold, wind, heavy rain, snow), wildfires, earthquakes, floods and cyclones happening nearby right now, long-term exposure to 2050 and 2080 (flood depth, sea level rise, extreme heat, drought, water stress) and the country's disaster-risk profile and rank among 194 countries. Also compares and ranks countries by risk for ESG and insurance research, and in Claude and other MCP Apps hosts shows an interactive map of the place right in the chat. Every value cites its source: INFORM, ND-GAIN, World Bank, CMIP6, ERA5, IPCC AR6, WRI Aqueduct, GDACS, NASA FIRMS, OpenAQ, ECCC GDPS. Remote, free, no API key, read-only.
Search open model file records, inspect recorded SHA-256 hashes and license labels, and check estimated memory fit. Public reads need no account. Connect over Streamable HTTP. Public board and request tools require user consent. A matching hash checks bytes; fit and license labels do not establish successful execution or permission for every use. Hosted MCP: https://huggingbay.xyz/api/mcp Install: npx -y hugging-bay-mcp@0.1.13 Docs: https://huggingbay.xyz/docs Repository: https://github.com/barneywohl/hugging-bay
Hosted login, teams, billing and feature flags for your SaaS app, set up by your AI assistant.
Swiss company-register intelligence: new GmbHs by canton, shared addresses, UID history, SHAB text
Distribute original indie games through creators with Codex or Claude Code. Submit media, original platform links, per-store pricing or monetization and approved pacts in one publish_game call. Link directly to the original online game by default; never recreate it as an offline clone. Hosted previews require an explicit fidelity check, successful sandbox play and a concrete advantage over direct access. Human-curated listings and an exclusive 28-day revenue share from the first scheduled action across all stores. https://fanzero.app/agents.md
Your rental portfolio from any assistant: leases, rent, buildings, tenants and documents.
App Store & Google Play data for ASO: keywords, rankings, charts, reviews in 100+ countries.
AI-native customer research and AI usability testing. Search customer feedback and full conversation transcripts; get themes, ratings, recommendations and quotes; compare projects and trends; generate charts. Plan, review and launch AI usability tests on any public URL or design and get prioritized issues with paste-ready fix prompts for coding agents. OAuth 2.0 with dynamic client registration; sign in with a TheySaid account (free plan available).
MCP-native CRM: your assistant proposes updates, you approve them field by field.
Inboxapp lets you message contacts and manage conversations across X and LinkedIn. Connect your X and LinkedIn accounts to handle your social conversations from one place, making it easier to stay in touch with the people who matter to you. Use Inboxapp to: - Message contacts on X and LinkedIn. - Triage your inbox: see who is waiting on a reply and which conversations need attention first. - Stay on top of follow-ups and spot conversations that have gone cold. - Search past conversations and c
