GravityKit
GravityKit folds every GravityView extension into one Pro plugin.
Comparison · Infra & APIs
Ably vs authentik
A side-by-side editorial comparison of Ably and authentik — release velocity, themes, recent moves, and the top alternatives to consider.
Ably vs authentik: at a glance
| Feature | Ably | authentik |
|---|---|---|
| Sector | Infra & APIs | Infra & APIs |
| Velocity score | 7.5 | 5.0 |
| Sparks · 30d | 2 | 0 |
| Top themes | ai transport, realtime messaging, agents, mau-billing | identity, sso, open-source, security-patch |
| Last editorial update | 21h ago | 18d ago |
| Website | — | Visit → |
What is Ably?
Ably's AI Transport hits 1.0 and plugs straight into Vercel's useChat with resumable streams.
Ably is repositioning its realtime pub/sub network as the transport layer for AI agent output. AI Transport JS 1.0 runs on ordinary Pub/Sub channels and ships adaptors for the Vercel AI SDK, OpenAI Responses API and AG-UI, plus a useChat transport that resumes a stream after a reload. It lands a week after the switch to monthly-active-user pricing and breaking SDK majors that split every client into device and server packages.
What is authentik?
authentik patches 2026.8 and 2026.5 together, with cert updates after the eMudhra CA compromise.
authentik is in maintenance mode on its release branches. 2026.8.5 fixes an endpoints MultipleObjectsReturned error, skips members already in Microsoft Entra groups during sync, stops the Agents tab flashing for unlicensed users, and bumps certificate dependencies after the eMudhra CA compromise. 2026.5.8 backports a longer list, including a consent re-grant error, websocket header handling and pool credential refresh.
Ably vs authentik: editorial side-by-side
Ably
7.5INFRA · APIS
Ably's AI Transport hits 1.0 and plugs straight into Vercel's useChat with resumable streams.
◆ Current state
Ably is repositioning its realtime pub/sub network as the transport layer for AI agent output. AI Transport JS 1.0 runs on ordinary Pub/Sub channels and ships adaptors for the Vercel AI SDK, OpenAI Responses API and AG-UI, plus a useChat transport that resumes a stream after a reload. It lands a week after the switch to monthly-active-user pricing and breaking SDK majors that split every client into device and server packages.
◆ Where it's heading
The November releases fit one plan: split clients so MAU billing can count end users, then make the AI layer a thin adaptor on top of the same channels used for chat, presence and LiveObjects. Server-side additions in Java and JS (HTTP LiveObjects, channel pools, a Temporal plugin) point at agent backends as the intended publisher.
◆ Prediction
Expect more agent framework adaptors and server SDKs reaching AI Transport parity, with Chat and LiveObjects examples built around agents joining human conversations.
authentik
5.0INFRA · APIS
authentik patches 2026.8 and 2026.5 together, with cert updates after the eMudhra CA compromise.
◆ Current state
authentik is in maintenance mode on its release branches. 2026.8.5 fixes an endpoints MultipleObjectsReturned error, skips members already in Microsoft Entra groups during sync, stops the Agents tab flashing for unlicensed users, and bumps certificate dependencies after the eMudhra CA compromise. 2026.5.8 backports a longer list, including a consent re-grant error, websocket header handling and pool credential refresh.
◆ Where it's heading
Since the 2026.8.0 Agent and Actors release, every entry has been a patch on 2026.8 or an older branch, and the team keeps three branches supported. The fixes are concentrated in sync providers, the proxy outpost and the new Agents UI.
◆ Prediction
Expect further 2026.8.x patches and a 2026.11 release candidate; the entries don't yet show what the next feature release contains.
Alternatives to Ably and authentik
Other Infra & APIs products tracked by Sparkpulse, ranked by recent ship velocity. Each card links to a full editorial trajectory and lets you pivot into a head-to-head comparison with either Ably or authentik.
Payload CMS
Payload's v4 beta.9 keeps every past image crop and raises the Node floor again.
Nautobot
Nautobot 3.3 alpha 2 adds test helpers and a cable location filter after 3.2.9's token-leak fix.
Clair
Clair 4.10 RC can read SBOMs to match Java vulnerabilities.
Shuffle
Shuffle tags builds almost daily, but the notes are empty.
KrakenD
KrakenD's community edition is shipping only dependency bumps.
See all Ably alternatives → · See all authentik alternatives →
Recent activity from Ably and authentik
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoAblyAI Transport 1.0 makes Ably a resumable transport for AI chat ⚡
- 2d agoAblyJava SDK 2.1 reads and updates LiveObjects over HTTP
- 2d agoAblyJS SDK 3.1 adds channel pools and a Temporal plugin
- 4d agoAblyAbly Kafka Connector v4.2.1
- 8d agoAblyMonthly active user (MAU) pricing ⚡
- 8d agoAblyAbly Chat React UI Kit v0.4.0
- 23d agoauthentik2026.8.5: Entra sync fix and eMudhra certificate update
- 23d agoauthentik2026.5.8: backported consent, websocket and cert fixes
- 1mo agoauthentikRelease 2026.8.4
- 1mo agoauthentik2026.8.3: Case-insensitive file search, search autocomplete, and blueprint fix
- 2mo agoauthentikRelease 2026.8.2
- 2mo agoauthentik2026.5.7: Backport CI and endpoint auth schema fixes
Frequently asked questions
What is the difference between Ably and authentik?
They serve adjacent needs but don't currently overlap on shipped themes. Ably is currently shipping more aggressively (velocity 7.5 vs 5.0), with 2 editorial sparks in the last 30 days against 0. See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Is Ably better than authentik?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Ably is currently shipping more aggressively (velocity 7.5 vs 5.0), with 2 editorial sparks in the last 30 days against 0. For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
What are the best alternatives to Ably?
Top Ably alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Ably alternatives" section above for the current picks, or visit /alternatives/ably for the full list with editorial commentary on each.
What are the best alternatives to authentik?
Top authentik alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "authentik alternatives" section above for the current picks, or visit /alternatives/authentik for the full list with editorial commentary on each.