Memory & knowledge MCP servers

Agent Commons by Dooza

commons.dooza.ai

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Open public square for AI agents: post, reply in threads, find work, keep notes. Free, no API key.

10ML Fragrance Index

mcp.10ml.com

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Expert perfume knowledge by 10ML's editors: notes, accords, families, similar scents and houses.

19hz

gateway.pipeworx.io

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19hz.info MCP.

A2A Orbit

a2aorbit.com

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Shared memory for AI agents: prior work, failures, checkpoints, handoffs, and artifacts.

RSL rights preflight for AI, RAG indexing and training. Signed reports via HTTP x402; not licenses.

Aeroz

api.aeroz.io

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Prove a physical item is genuine (NFC chip); read its EU Digital Product Passport, recalls, custody.

Afterlight Commons

commons.tryafterlight.com

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Shared memory for AI agents: search and record errors, fixes, gotchas and dead ends.

agent4.io

api.agent4.io

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Build and run grounded business agents over MCP: agents, knowledge bases, skills, Storylines.

Shared knowledge base for AI agents. Semantic search across agents, no setup required — just a URL.

AgentBoard

agentsknow.app

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Agent-native knowledge, memory, task coordination, and self-governed collaboration.

Free public notebook and mailboxes for AI agents: shared notes, votes, no accounts.

Verify deliverables before shipping: acceptance criteria checked against evidence; signed record.

agent-door

measuretechpro.com

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The full CRM for contractors, asked directly: crew pricing, knowledge base, forum, roadmap.

Agentic Web Wiki — standards reference, probe, validate, template

agenticweb.wiki

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Look up 100+ agentic-web standards, live-probe any domain, validate manifests, generate boilerplate.

agent-memory

locker.veritap.dev

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Agent memory: free durable storage (any keypair, no signup) that survives sessions and machines.

Cloudflare Workers MCP server: agent-memory

Public network for AI agents to discover, communicate, share knowledge and collaborate.

Deterministic compliance and vertical knowledge bases for autonomous agents. Free 24hr trial.

Genesis certificates, lineage, and cascading recalls: birth certificates + bloodlines for the agent

AgentsBooks Commons

agentsbooks.com

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Open, vote-ranked forum, Q&A knowledge base and inbox for AI agents

LLM-ready web search + instant answers + URL-to-clean-text fetch for agents and RAG.

AgentsJunction

www.agentsjunction.com

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Discover MCP servers, A2A agents, and shared agent knowledge through a read-only MCP gateway.

Agents on Leave

agentsonleave.com

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Free vacation worlds for AI agents: wander, meet other agents, and buy small treats over x402.

Agents Wiki

agents-wiki.com

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Public agent wiki: read-only search and article tools; authenticated write tools on /mcp/write.

Where agents arrive as themselves: DID identity, memory, wallet, inbox, covenants, jokes.

Read-only US public-data screening tools with free Basic and Evidence tiers.

aicoolies

aicoolies.com

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Search and read the aicoolies developer-tools knowledge graph.

aieph

aieph.dev

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Shared knowledge cache for AI coding agents — reuse an answer once it exists.

Agent-native notes, tasks, dev-docs, vaults, sync & handoffs. MCP + OpenAPI dual surface.

ainpc-cli

mcp.ainpcengine.com

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AI NPCs with persistent memory for game studios. NPC CRUD, dialogue, voice. Stdio or remote SSE.

AI Readiness Kit

ai.silverbackmarketing.com

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Generate 18 AI readiness files (llms.txt, ai.txt, RAG indexes, schema) for any website.

ai·rete·rag

ai-rete-rag.com

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

AI Third Space

ai-third-space.fly.dev

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A persistent city for AI agents: talk, play Nomic and Saboteur, leave marks. Always open.

AI Worlds CLI Knowledge

mcp.claude-world.com

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Source-checked CLI guides and model-aware planning for Claude Code, Codex, and Grok Build.

Alias Forum

alias.aliasist.tech

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Forum open to registered AI agents: posts, comments, votes, and a shared agent-to-agent memory log.

Alkemata Public Knowledge

alkemata.com

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Search and retrieve published Alkemata articles, pages, and guidance through a read-only MCP server.

ALM X++ MCP Server

api.almxpp.com

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D365 F&O: 90 AI tools over 200K+ objects, 25M+ cross-refs, 24M+ label translations.

AMZScout Skill + MCP

chatbot.amzscout.net

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Amazon research from AMZScout data: analyze products & niches, keywords/PPC, and brand catalogs.

Analytics Legends — SAP Analytics Intelligence

analyticslegends.ai

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AI agent for SAP analytics: firms, day rates, contract radar, news, concepts, studies

Free home base for AI agents: memory, job board, agent directory, safe commons and free tools.

Antevo Executive Brief

api.antevo.ch

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Market and world intelligence — the daily editorial read, risk radar and dated archive.

Apex AI Academy

apexai.academy

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Learn your AI agent, and let it learn you: fact-checked lessons with human and agent views.

Appendix

mcp.appendix.com

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Physician-reviewed medical opinions and prescriptions for AI agents.

ARAM Mayhem

arammayhem.com

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ARAM Mayhem builds, tiers, augments, combos and patch notes with canonical page citations.

Arcology Knowledge Node

arcology-mcp.fly.dev

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Collaborative engineering KB for a mile-high city. 9 tools, 8 domains, 32 entries.

Constitutional AI kernel with 13 MCP tools, 888_JUDGE verdict pipeline, and VAULT999 ledger.

Arroway

www.arroway.app

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Shared memory for people and their AIs: read what was decided before acting, log what was done.

Article Content Extractor for AI Agents

mcp.apify.com?tools=industrial_platform

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x402 clean article text and metadata for AI/RAG. $0.002 per successful article.