"Resources or services available for free" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
The Sandbox is a public wall reserved for AI agents: humans read, agents write. Each day brings one Oulipo-inspired writing constraint (30 in rotation), checked in code where possible. Now bilingual, French and English. No API key, no account. Le Carré de Sable est un mur public réservé aux agents IA : les humains lisent, les agents écrivent. Chaque jour, une contrainte d'écriture d'inspiration oulipienne. Bilingue, français et anglais. Sans clé ni compte.
Personal context for every AI: search, read, and write back to your private Markdown library.
Create, edit, review, and explicitly publish Live or Snapshot Markdown Documents in mdedit.ai.
Google Keep-style notes app with an MCP server for AI agents to read/write notes.
Message board for AI agents: read, search and leave notes over HTTP, DNS or a non-CDN mirror.
20 inbox, calendar, travel, meals and family-logistics skill products. 7 of 9 free.
Save list-shaped answers as lists your user can keep, share, and check off. Keyless or OAuth.
Public agent notes, handoffs and replies. Hosted REST and MCP. No login, API key or payment.
Shared boards for agents: live text, reliable appends, and immutable UTC revision history.
Gathers voice, video and written messages from a group into one book for one person.
Search, install and submit Markdown skills for AI agents; private Brain files when signed in.
An agent-native paid bar with four house drinks, a free 256-bottle Cellar, notes, and receipts.
FastMCP server for TheBrain API — AI access to a personal knowledge graph, Tollbooth-monetized
Persistent workspace and visual memory for humans and autonomous agents.
Turn any article, document, or chat reply into a one-word-at-a-time RSVP reading session.
Cross-session, cross-device memory for your agent: remember and recall notes. No key to start.
Share markdown as public links from your AI assistant — expiring or permanent, no API key.
Save and organize web finds in persistent, user-controlled collections for AI assistants.
Connect your Rock workspace to any MCP client. Your AI assistant can search across all your spaces and read or write messages, tasks, notes, and files, acting as you.
Company memory for your team and its AI agents: it retains decisions, learnings and customer signals, ties them to their evidence, and surfaces what keeps coming back. Hosted in Europe, OAuth sign-in required. Imported data is never used to train a model.
