Beta Access Now Open

Search your enterprise knowledge instantly

Connect all your documents, databases, and tools — Slack, Notion, GitHub, Jira, Linear, Fathom. Ask questions naturally and get precise answers with sources.

Free for early adopters · No credit card required

Extremis Search
Where is the Q4 sales report?

Enterprise Refund Policy

Full refund within 30 days…

Refund Request Process

Standard procedures for…

Features

Everything you need to find knowledge fast

Search across every tool

Slack messages, Notion pages, GitHub issues, Linear tickets, Jira projects, Asana tasks, Fathom transcripts — one query, one ranked answer list.

Cited answers, not guesses

Every recall returns the source — channel + timestamp, page URL, issue link. Click straight back to the original.

Hybrid recall built in

Semantic vector search + Postgres FTS, fused via Reciprocal Rank Fusion. Catches both 'what did finance commit to' (semantic) and 'the SCRUM-1247 ticket' (keyword) in one query.

Stays current

Incremental sync with content-hash deduplication. Re-syncing unchanged content costs zero embedding calls. Manual 'Sync now' button when you can't wait.

Tenant-isolated by default

Each customer gets a Postgres-row-level-secured namespace. No cross-tenant leak. Your data, your namespace, your provenance trail.

MIT-licensed core

Cloud is convenience, not a moat. The underlying memory library is open source — point HostedClient.base_url at your own deployment if Cloud ever goes away.

Integrations

Plug into the tools you already use

Connect via OAuth in 30 seconds. Pick the channels, pages, repos, or projects you want indexed. Sync runs in the background — content shows up in search automatically.

Slack

Connected

Notion

Connected

GitHub

Connected

Linear

Connected

Jira

Connected

Asana

Connected

Fathom

Connected

Google Drive

Coming soon

How it works

Three steps to a working knowledge base

1

Connect

OAuth into Slack, Notion, GitHub, Jira, Linear, Asana, Fathom. Pick exactly which channels, pages, repos, or projects to index.

2

Sync runs in the background

Incremental, deduped against content hash. The first sync backfills history; later syncs only fetch new items. Manual 'Sync now' anytime.

3

Ask anything, get cited answers

Hybrid recall (vector + FTS via RRF) returns ranked results. LLM synthesises an answer with [N] citations linking back to the source.

For developers

Stop assembling memory by hand for every agent.

Most teams glue together pgvector, an embedding model, a chunker, a re-ranker, a sync worker, and per-tenant isolation themselves — then discover they also need hallucination detection. Extremis ships the whole stack as one API call.

  • Two-line client: mem.remember() + mem.recall()
  • Per-tenant Postgres + pgvector with HNSW indexing, RLS-isolated
  • Hybrid recall + RL-scored ranking + verification trace
  • MCP server with 9 tools — Claude Desktop, Claude Code, Cursor all work out of the box
agent.pyextremis
# pip install extremis
from extremis import HostedClient

mem = HostedClient(api_key="extremis_sk_…")

# write
mem.remember("Customer wants pricing in writing")

# read
hits = mem.recall("what did the customer want?")
for h in hits:
    print(h.memory.content)
    print(h.reason)  # similarity 0.87 · used 5× · 3d

Extremis Cloud

The managed knowledge layer.

We run the embeddings, the sync workers, the vector index, the hallucination detection, and the dashboard. You bring the API key.

Starter

Free

for early adopters

  • Up to 50K memories
  • 1 connected workspace per integration
  • Hybrid recall + cited answers
  • Community support
Recommended

Team

$49

per month, per workspace

  • Up to 1M memories
  • Unlimited integrations
  • Hallucination detection (when GA)
  • Slack support

Enterprise

Custom

contact us

  • BYO Postgres / pgvector
  • SSO + audit logs
  • On-prem + air-gapped
  • Dedicated support
Try Extremis Cloud — free →

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Benchmarks

LongMemEval-S · 500 QA instances

Reproducible on the public benchmark. See methodology →

94.4%

Retrieval R@5

top-5 includes the answer session

38.8%

QA Accuracy

claude-haiku-4-5 as answerer

~35ms

p50 recall latency

local model · MPS · varies in prod

One search across everything.

Stop hunting through Slack, Notion, GitHub, and Jira. Connect once, search forever.