Vital signs
Why it's on the table
On the table, Knowledge Wiki (Kw) is seat 15 of 58, in the Knowledge & Memory family. It is a stable element — the category has settled, choosing is cheap, and switching is rare. Pick a holder and move on; this is not where your decision budget should go. It is marked essential: a company that leaves this seat empty is running with a gap that compounds. It sits in the lowest paid band — lunch money against the hours it returns.
Knowledge Wiki: the top 5 — v2026.Q3
Edition v2026.Q3 · ranking, pricing and status verified 2026-08-06.
1NotionNotion Labs
Free · Plus $10/seat/mo · Business $20 (full AI + Agent) · Enterprise custom · Custom Agents $10 per 1,000 creditsBest for Teams that want the company brain, the AI that answers from it, and the agents that maintain it in one workspace.
The scale leader — 100M users (2024), $500M ARR (Sep 2025), $11B valuation (Jan 2026 tender) — and the furthest along on agent-readability: Notion 3.0 (Sep 18, 2025) made agents first-class, Custom Agents run on schedules/triggers since Feb 2026, and the hosted MCP server gives any external agent OAuth read/write in one click. The wiki that agents both consume and garden.
Watch Full AI is gated to the $20 Business plan, and Custom Agents added usage-based credit billing on May 4, 2026 — costs are unpredictable at agent scale. Your knowledge lives in their cloud; Markdown export is lossy for databases. Agent sessions cap at ~20 minutes.
$500M ARR (Sep 2025); $11B valuation via employee tender (Jan 2026); 100M users (2024) [src] · Notion 3.0 launched Sep 18, 2025 — agents execute multi-step work across hundreds of pages for up to 20 min [src] · Custom Agents launched Feb 2026; credit billing ($10/1,000 credits) live May 4, 2026 [src]2ObsidianDynalist Inc. (Obsidian)
Free (personal, no limits) · Commercial $50/user/yr · Sync $4/mo · Publish $8/moBest for Founders and engineering-heavy teams who want knowledge as plain local files that any coding agent can read, grep, and edit — no API, no vendor.
The most agent-native substrate in the category: a vault is just Markdown on disk, so Claude Code, Codex, or any file-capable agent operates on it directly — put it in git and you get versioned, reviewable knowledge. CEO Steph Ango shipped official open-source agent skills (Obsidian Markdown, Bases, JSON Canvas, CLI) in June 2026 — 37k GitHub stars within weeks — codifying the vault conventions agents should follow.
Watch Not a team wiki out of the box: no browser editing, no granular permissions, collaboration means shared Sync vaults. No hosted product, no admin controls — governance of the company brain is entirely DIY. The app itself is not open source.
3SliteSlite
Basic $10/user/mo · Pro $20 (agent + 12+ connected sources) · Enterprise custom · MCP + API on all paid tiersBest for Teams who want a dedicated knowledge base whose answers agents can actually trust — verification workflows plus the deepest wiki MCP.
The most complete agent-readability story of any pure knowledge base: a remote MCP server (api.slite.com/mcp, OAuth, no config) exposing 40+ tools for search, doc read/write, and structured tables, with permission inheritance — works with Claude, ChatGPT, Cursor, Gemini, and custom frameworks. Doc verification and AI fact-checking with suggested fixes attack the real failure mode of company wikis: stale pages that agents confidently repeat.
Watch A small independent vendor next to Notion and Atlassian — platform-longevity risk is real. Basic caps AI at 30 questions/seat/mo; the agent and cross-tool search need the $20 Pro tier, at which point it prices like Notion Business with a fraction of the ecosystem.
Remote MCP with 40+ tools, OAuth setup, permission inheritance, SOC 2 Type II (verified Aug 2026) [src] · Basic $10 / Pro $20 per user/mo billed yearly; MCP and API access from Basic up (Aug 2026) [src] · Pro searches across 12+ connected tools (Slack, Linear, Jira, Drive, GitHub, Salesforce…) [src]4OutlineGeneral Outline (BSL 1.1)
Cloud flat-rate: $10/mo (≤10 users) · $79/mo (≤100) · $249/mo (≤200) · self-hosted freeBest for Teams that want a fast Markdown wiki they can self-host — or cloud pricing that stops scaling per seat.
The self-hostable choice with real momentum: 39.7k GitHub stars, source-available (BSL 1.1), and MCP built into every workspace since Feb 18, 2026 — agents search, read, create, and edit docs natively, with an expanded toolset (patching, moves, attachments, comments) shipped Apr 26, 2026. Flat-rate cloud pricing ($79/mo for up to 100 people) undercuts every per-seat rival at team scale.
Watch BSL is not OSI-open-source — check the license terms if that matters. In-product AI is thin (Q&A only) — it's the substrate for external agents, not an agent platform. Small commercial team behind the cloud offering.
5Superhuman Docs (ex-Coda)Superhuman (ex-Grammarly; acquired Coda Dec 2024)
Free · Pro $10/Doc Maker/mo · Team $30/Doc Maker · Enterprise custom — editors and viewers freeBest for Teams whose wiki needs to compute — living docs with tables, buttons, automations, and two-way syncs, not just prose.
Coda's doc-as-app engine inside the Superhuman suite: knowledge hubs with structured tables, workflow automation, 800+ integrations, and MCP support that lets ChatGPT, Claude, and Cursor read and act on docs. The Doc Maker pricing model (only builders pay; editors and viewers free) stays the cheapest way to give a whole company access to structured knowledge.
Watch Brand and roadmap turbulence: coda.io now redirects to superhuman.com, and the product competes for attention inside a suite (Mail, Grammarly, Go) whose center of gravity is not wikis. Doc-Maker promotions quietly multiply bills; Packs can carry separate fees.
coda.io/pricing 302-redirects to superhuman.com/plans/docs — Coda folded into Superhuman Docs (verified Aug 6, 2026) [src] · MCP integration with ChatGPT, Claude, Cursor; 800+ integrations; AI builds trackers/dashboards from prompts [src] · Pro $10 / Team $30 per Doc Maker/mo; editors and viewers free (2026) [src]
Knowledge Wiki: the top 8 compared
Edition v2026.Q3 · ranking, pricing and status verified 2026-08-06.
| Tool | Pricing model | Open source | Data lives | MCP | AI in product | Portability | Enterprise |
|---|---|---|---|---|---|---|---|
| Notion | Per-seat + agent credits | No | Their cloud | Hosted, official (OAuth) | Agents + custom agents + search | Lossy export (databases) | SAML · zero-retention AI |
| Obsidian | Free + optional add-ons | No (app) · free forever | Your disk / git | Via files + official agent skills | None built-in (plugins) | Perfect — plain Markdown | Commercial license only |
| Slite | Per-seat | No | Their cloud | Remote, 40+ tools, OAuth | Agent + verification + fact-check | Markdown export | SOC 2 · SSO · HIPAA (Ent.) |
| Outline | Flat-rate cloud / free self-host | Source-available (BSL 1.1) | Your infra or cloud | Built-in since Feb 2026 | Q&A only | Markdown-native | SSO · audit logs |
| Superhuman Docs (ex-Coda) | Per Doc Maker | No | Their cloud | Yes (ChatGPT/Claude/Cursor) | Docs AI builds apps | Weak — doc-app lock-in | Suite SSO · audit |
| Confluence + Rovo | Per-seat | No | Atlassian cloud / DC | Rovo MCP, all cloud plans | Rovo agents + search | XML/HTML export, clunky | Deepest compliance stack |
| Anytype | Free + paid sync tiers | Source-available | Local-first, E2E sync | gRPC API + community MCP | Early 'AI agents' (alpha) | Good — local data, export | No |
| Slab | Per-seat | No | Their cloud | No official server | AI Ask (Business tier) | Markdown export | SSO (Ent.) |
How to choose your knowledge wiki
- If you want one product where the wiki, the search, and the agents that maintain it all live together
- Notion Business at $20/seat — accept the credit-billing line item for Custom Agents and watch it monthly; usage pricing arrived May 4, 2026.
- If your team already lives in coding agents (Claude Code, Codex) and treats knowledge as code
- An Obsidian vault in a git repo, with the official obsidian-skills conventions — agents read and write it like any other files, with PR review as your governance layer.
- If agents answering from stale docs scares you more than missing features
- Slite — verification workflows plus fact-checking keep the substrate trustworthy, and its 40+-tool MCP is the deepest of any dedicated knowledge base.
- If compliance requires self-hosting, or per-seat pricing offends you at 50+ people
- Outline — free on your own infra, or $79/mo flat for up to 100 users in cloud, with MCP built into every workspace since Feb 2026.
- If procurement is Atlassian-shaped or the org is 1,000+ people
- Confluence with Rovo — the incumbent nobody gets fired for, with an MCP server included on every cloud plan (rate-limited to 500–10,000 calls/hr by tier).
Knowledge Wiki: the whole field
22 more tools tracked in this category, including 6 dead, renamed, or sunsetting — a reference that hides the graveyard isn't one. Verified 2026-08-06.
| Tool | Maker | What it is | Entry | Status |
|---|---|---|---|---|
| Confluence + Rovo | Atlassian | The enterprise wiki incumbent; Rovo MCP server included for all cloud customers (500–10,000 calls/hr by plan) — the big-org near-miss for the top 5 | free ≤10 · ~$6/user/mo | active |
| Slab | Slab | Clean, cheap team wiki ($6.67–12.50/user) with AI Ask on Business — solid but development pace has visibly slowed | free ≤10 · $6.67/user/mo | active |
| Anytype | Any Association | Local-first, E2E-encrypted, source-available (Any Source Available 1.0); gRPC API + community MCP; desktop still alpha-versioned (v0.55.5-alpha, May 2026) | free · paid sync tiers | active |
| Capacities | Capacities | Object-based personal knowledge studio; AI assistant + API on Pro, no MCP yet — personal brain, not company brain | free · Pro ~$12/mo | active |
| Guru | Guru | Pivoted from per-seat wiki to custom-priced 'expertise platform' that feeds other AI tools via MCP — enterprise-sales motion now | custom (sales call) | active |
| Superhuman Go / suite | Superhuman | The suite around Docs — Mail, Grammarly, Go assistant; the reason Coda's roadmap is now shared attention | per product | active |
| Tana | Tana | The supertag pioneer pivoted to an 'agentic meeting platform' with native video calls — now mostly element Mt territory | 30-day trial · sub | active |
| Logseq | Logseq (AGPL-3.0) | Open-source outliner, 44k stars; the DB rewrite has been in beta for years and momentum has bled to Obsidian | free | fading |
| Roam Research | Roam Research | Invented the backlink era; development and community quiet through 2025–26 as users migrated to Obsidian/Tana | ~$15/mo | fading |
| Mem | Mem Labs | AI-organizes-everything notes for teams (OpenAI-backed); repositioned repeatedly, niche adoption | subscription | active |
| Craft | Craft Docs | The prettiest docs app on Apple platforms; personal and small-team, thin agent story | free · ~$8/mo | active |
| Heptabase | Heptabase | Whiteboard-first knowledge for visual thinkers; loyal niche, personal not team | ~$12/mo | active |
| Reflect | Reflect App | Fast networked notes with built-in AI; personal-first, E2E encrypted | ~$10/mo | active |
| AFFiNE | toeverything (MIT + ent.) | Open-source Notion+Miro alternative, 69k stars, v0.26.3 (Feb 2026); self-hostable with AI canvas | free · cloud tiers | active |
| AppFlowy | AppFlowy (AGPL) | Open-source Notion alternative in Rust/Flutter; self-host with local AI options | free · cloud tiers | active |
| Nuclino | Nuclino | Lightweight fast wiki with Sidekick AI on Business tier; deliberately simple, no MCP | free · from ~$6/user/mo | active |
| Tettra | Tettra | Slack-first internal Q&A wiki — 20,000+ orgs, AI answers/tagging; single $8/user plan | $8/user/mo (min 10) | active |
| BookStack | Dan Brown (MIT) | Self-hosted PHP wiki stalwart — books/chapters/pages metaphor, steady releases | free (self-host) | active |
| Wiki.js | requarks (AGPL) | Popular Node.js wiki; v2 stable but the long-promised v3 rewrite has crawled for years | free (self-host) | fading |
| Almanac | Almanac Labs | Structured-docs startup for async teams; site frozen with a 2023 'Go Forward' letter — effectively dormant | — | dead |
| Dropbox Paper | Dropbox | Once a contender, in maintenance mode for years as Dropbox chases Dash (AI search) | bundled | fading |
| Coda | → Superhuman | Acquired by Grammarly (announced Dec 2024); coda.io now redirects to superhuman.com — lives on as Superhuman Docs (see top 5) | — | renamed |
Knowledge Wiki: the category in numbers
Edition v2026.Q3 · ranking, pricing and status verified 2026-08-06.
- Knowledge-management software market: $16.22B (2026) → $37.64B by 2031, 18.34% CAGR; 'intelligent chatbots and virtual agents' the fastest-growing slice at 21.88% CAGR [src]
- Notion: $500M ARR (Sep 2025), $11B valuation via employee tender (Jan 2026), 100M users (2024) — pulled AI up-market by bundling it into Business/Enterprise (May 2025) [src]
- MCP became the category's table stakes in 12 months: Notion hosted MCP (2025), Slite remote MCP (40+ tools), Outline built-in (Feb 2026), Atlassian Rovo MCP on every cloud plan, Coda/Superhuman Docs MCP [src]
- The files-as-substrate wave: Obsidian CEO's official agent-skills repo hit 37k+ GitHub stars within a month of its June 2026 release [src]
- Usage-based pricing reached wikis: Notion Custom Agents moved to credit billing ($10/1,000 credits) on May 4, 2026 [src]
- Consolidation: Coda folded into the Superhuman suite (Grammarly acquisition announced Dec 2024; coda.io redirects to superhuman.com as of Aug 2026); Guru abandoned per-seat pricing for custom 'expertise platform' deals [src]
Knowledge Wiki: method & sources
Ranking criteria: agent-readability first (MCP depth, format portability, permission model), then team fit, trustworthiness of answers, and pricing honesty. Scope: internal knowledge only — customer-facing docs (GitBook, Mintlify) belong to Dc; enterprise search across tools (Glean, Dropbox Dash) is adjacent to Re; agent memory APIs (Mem0, Zep, Letta) are Mm; Tana's pivot puts it mostly in Mt. Conflicts/weak spots: Notion's 100M-user figure is 2024 vintage — no newer primary number exists; the Ramp '300+ agents, 70% cost reduction' claim circulating in reviews originates from Notion marketing, so we cite it nowhere load-bearing. Capacities and Nuclino render prices client-side — exact figures are from aggregators and marked approximate. Confluence per-seat pricing page would not render; ~$6/user is Atlassian's known list price, verify before quoting. Almanac's status is inferred from a frozen site (2023 CEO letter, 2023 copyright) — no formal shutdown notice found. Grammarly's rebrand to Superhuman is verified via superhuman.com itself; the exact rebrand date (reported Oct 2025) could not be confirmed on a primary page. Ranking criteria: verified commercial traction, independent satisfaction surveys, agent benchmarks, and founder-fit (price floor, lock-in, surfaces). Editorial, never paid — the charter. Machine-readable twin: kw.json.
All sources (26)
- https://www.notion.com/pricing
- https://developers.notion.com/guides/mcp/overview
- https://www.notion.com/blog/introducing-notion-3-0
- https://www.notion.com/blog/notions-hosted-mcp-server-an-inside-look
- https://sacra.com/c/notion/
- https://www.eesel.ai/blog/notion-ai-review
- https://obsidian.md/pricing
- https://www.dsebastien.net/obsidian-ai-skills-by-steph-ango/
- https://github.com/kepano/obsidian-skills
- https://slite.com/pricing
- https://slite.com/mcp
- https://www.getoutline.com/pricing
- https://www.getoutline.com/changelog
- https://github.com/outline/outline
- https://superhuman.com/docs
- https://superhuman.com/plans/docs
- https://www.eesel.ai/blog/coda-pricing
- https://www.atlassian.com/platform/remote-mcp-server
- https://www.mordorintelligence.com/industry-reports/knowledge-management-software-market
- https://tettra.com/pricing/
- https://www.getguru.com/pricing
- https://slab.com/pricing
- https://capacities.io/pricing
- https://github.com/logseq/logseq
- https://github.com/anyproto/anytype-ts
- https://github.com/toeverything/AFFiNE
Our take
Your wiki is no longer for humans only. Write it so an agent can act on it — that's the 2026 shift.
Combines with
Appears in compounds
Guides
This is element 15 of 58. The table is versioned quarterly — when a tool loses its seat, the changelog records the succession.
Explore the full table →