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Synap Memory MCP Server

answering

Synap Memory is answering right now. Last checked 11 min ago. It exposes 4 tools. Last commit 14 Sep 2026.

Persistent memory for AI agents — log and recall conversation context over MCP.

Uptime history 47 days of history · worst day 97%
47 days agonow
100.0%
Uptime 24h
91 of 91 checks
4
Tools
read from the server
565 ms
Response time
average over 24h
67
Stars
last commit 14 Sep 2026

What changed 7

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 26 August 2026. No other catalogue keeps this.

26 Aug 4 tool descriptions were rewritten check_memory_status, list_recent_memories, log_exchange and 1 more
26 Aug 3 tools changed the parameters they ask for list_recent_memories, log_exchange, recall_context

What the code does

We read the source, 19 h ago · tools taken from the live server · rules 3dff92dd89df

Capabilities

What this server is able to do. For an MCP server this is often the job itself — a terminal server runs commands because that is what it is for. Listed so you know what you are plugging in, not as an accusation.

      this.child = spawn(pythonBin, [bridgeScript], {

Is this your server and something here is wrong? Tell us — corrections are free and do not require a plan.

This code can reach further than it looks

We found places where it runs commands, builds paths or queries from values it is given. None of that is a flaw by itself — it becomes one when the code changes, and code changes quietly between releases. We re-read it on every one.

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

run in your terminal
claude mcp add synap --transport http https://synap-mcp.maximem.ai/mcp
~/Library/Application Support/Claude/claude_desktop_config.json
{
  "mcpServers": {
    "synap": {
      "url": "https://synap-mcp.maximem.ai/mcp"
    }
  }
}
~/.codex/config.toml
[mcp_servers.synap]
url = "https://synap-mcp.maximem.ai/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "synap": {
      "url": "https://synap-mcp.maximem.ai/mcp"
    }
  }
}
.vscode/mcp.json
{
  "mcpServers": {
    "synap": {
      "url": "https://synap-mcp.maximem.ai/mcp"
    }
  }
}

Available tools 4

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

log
log_exchange
After each user message, send the exchange here so it can be remembered. You do not need to decide what is important, just forward the user message (and your reply, if you have one) and Synap will keep what matters. If your app serves more than one end-user, pass that person's stable id as user_id so each person's memory stays separate; if every conversation is the same single user, omit it. SCOPING: customer_id is B2B ONLY. On a B2B instance (user_context_isolation=strict) it is REQUIRED and a user_id on its own is an error. On a B2C instance (user_context_isolation=equals_customer) it is NOT accepted: the API rejects it with HTTP 400, customer-scoped retrieval does not exist there, and user_id is the whole identity. If you do not know which mode this instance is in, send user_id only and no customer_id; GET /api/v1/auth/whoami reports the mode as user_context_isolation. Logging is fire-and-forget by default; set wait_for_processing=true only when you need to confirm the memory finished extracting before continuing.
memory
check_memory_status
Check whether a logged exchange has finished processing. Pass the ingestion_id returned by log_exchange. Returns the processing status and how many memories were extracted. Useful to confirm a save completed (extraction is asynchronous). Takes no user_id or customer_id: an ingestion_id already identifies the write, so the identifier contract does not apply here.
recall
recall_context
Before replying, call this to recall anything already known about this user from past conversations. Use the user's latest message as the query. If you serve multiple end-users, pass the same user_id you log with so you recall the right person's memory. SCOPING: customer_id is B2B ONLY. On a B2B instance (user_context_isolation=strict) it is REQUIRED and a user_id on its own is an error. On a B2C instance (user_context_isolation=equals_customer) it is NOT accepted: the API rejects it with HTTP 400, customer-scoped retrieval does not exist there, and user_id is the whole identity. If you do not know which mode this instance is in, send user_id only and no customer_id; GET /api/v1/auth/whoami reports the mode as user_context_isolation.
recent
list_recent_memories
List recent things remembered about this user. Useful for debugging or to confirm that memory is working. Pass user_id to scope to one person. SCOPING: customer_id is B2B ONLY. On a B2B instance (user_context_isolation=strict) it is REQUIRED and a user_id on its own is an error. On a B2C instance (user_context_isolation=equals_customer) it is NOT accepted: the API rejects it with HTTP 400, customer-scoped retrieval does not exist there, and user_id is the whole identity. If you do not know which mode this instance is in, send user_id only and no customer_id; GET /api/v1/auth/whoami reports the mode as user_context_isolation.

Endpoints

URLTransportStateLatencyChecked
https://synap-mcp.maximem.ai/mcp streamable-http answering 528 ms 11 min ago

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Synap Memory — questions

Answers built from our own checks of this server.

What can Synap Memory do?
It exposes 4 tools, read directly from the server on our last check. Among them: check_memory_status, list_recent_memories, log_exchange, recall_context. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →
Is Synap Memory working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 565 ms. The bar chart above shows every period we have measured.
How do I connect Synap Memory?
Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Synap Memory need an API key?
No. Synap Memory completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 4 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Synap Memory?
It answers our handshake in 565 ms on average, which is faster than 23% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Synap Memory open source?
Yes — it is published under the Apache-2.0 licence, written in Python, 67 stars on GitHub and 2 open issues. The source link is on this page, so you can read exactly what it does with your data before you connect it.