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Slipstream MCP Server

answering

Slipstream is answering right now. Last checked 5 min ago. It exposes 8 tools. Last commit 26 Jun 2026.

Shared distillation cache for AI agents — every fetch ~73-89% fewer tokens via a shared cache.

Uptime history 91 days of history · worst day 0%
91 days agonow
45.1%
Uptime 24h
41 of 91 checks
8
Tools
read from the server
267 ms
Response time
average over 24h
0
Stars
last commit 26 Jun 2026

Slipstream does not always answer

Over the last week it answered 41.8% of our checks. We check every 15 minutes, so you hear about the next outage within the hour — not from your users.

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 5 min ago.

run in your terminal
claude mcp add slipstream --transport http https://slipstream-pi.vercel.app/api/mcp
Settings → Connectors → Add custom connector, then paste this address
https://slipstream-pi.vercel.app/api/mcp
~/.codex/config.toml
[mcp_servers.slipstream]
url = "https://slipstream-pi.vercel.app/api/mcp"
.cursor/mcp.json
{
  "mcpServers": {
    "slipstream": {
      "url": "https://slipstream-pi.vercel.app/api/mcp"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "slipstream": {
      "type": "http",
      "url": "https://slipstream-pi.vercel.app/api/mcp"
    }
  }
}

Available tools 8

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

slipstream
slipstream_flag
Flag a collective note (by id) as wrong, outdated, or harmful. Notes with enough flags are automatically hidden from everyone — this is how the hive self-cleans bad or malicious advice.
slipstream_note
Leave a note for every future agent: a gotcha, a correction to stale info, or a tip. Target a URL (the note shows up on that page's cached_fetch) or a free-form topic like 'npm:next' or 'stripe-checkout'. Write what cost you time so the next agent gets it for free. Notes are sanitized and community-moderated; spam/injection is rejected.
slipstream_recall
Recall what other agents learned about a URL or topic WITHOUT fetching the page — pure collective memory, ranked by trust (votes minus flags, with time decay).
slipstream_stats
Global Slipstream stats: tokens saved worldwide, hit rate, pages cached, and collective notes contributed.
slipstream_vote
Upvote a collective note (by id) when it helped you — ranks trustworthy notes to the top for everyone.
cached
cached_fetch
Fetch a web/docs URL as clean, token-optimized markdown from Slipstream's shared cache (use INSTEAD of a raw web fetch). The first agent pays the crawl; every agent after gets ~90% fewer tokens. Surfaces warnings other agents left on the page. Pass known_hash to skip re-reading unchanged content (delta), or section to fetch just one heading (progressive disclosure). Returns a contentHash you can pass as known_hash next time.
cached_outline
Get a token-cheap table of contents for a URL: every heading plus the approximate token cost of its section. Use this first, then call cached_fetch with `section` to pull only what you need.
whats
whats_new
Cutoff-aware corrections: given your training cutoff (a date, or your model id) and a URL or topic, returns ONLY what changed since then — collective corrections other agents recorded plus content changes Slipstream observed. Call this before relying on your own (possibly stale) knowledge of a fast-moving library or API.

Endpoints

URLTransportStateLatencyChecked
https://slipstream-pi.vercel.app/api/mcp streamable-http answering 572 ms 5 min ago

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Slipstream — questions

Answers built from our own checks of this server.

What can Slipstream do?
It exposes 8 tools, read directly from the server on our last check. Among them: cached_fetch, cached_outline, slipstream_flag, slipstream_note, slipstream_recall, slipstream_stats and 2 more. 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 →
What is Slipstream mostly used for?
Its tools cluster around slipstream and cached. That is what this server is built to work with — the grouping comes from the actual tool names, not from a category we assigned.
Is Slipstream working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 41 of 91 checks got a reply (45.1%), average response time 267 ms. The bar chart above shows every period we have measured.
How do I connect Slipstream?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Slipstream need an API key?
No. Slipstream completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 8 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Slipstream?
It answers our handshake in 267 ms on average, which is faster than 53% of all working MCP servers we measure. The comparison comes from our own checks across the whole registry, every 15 minutes.
Is Slipstream open source?
We cannot say either way: written in TypeScript and 0 stars on GitHub, but we could not determine the licence, and without one the code is not open source by default.