SavvyCal
SavvyCal lets Claude or ChatGPT book and move meetings through an MCP server on every plan.
A side-by-side editorial comparison of Hanko and Transmission — release velocity, themes, recent moves, and the top alternatives to consider.
Hanko maps SAML and OIDC attributes into custom claims, a step toward enterprise SSO.
Hanko is a passkey-first authentication platform, open source or cloud-hosted. October's update lets teams bring attributes from SAML and custom OIDC connections into Hanko as custom claims, configured in the Cloud Console. Earlier 2026 releases added Firebase password hash import, inactivity logouts, session transparency and stronger passcode policies.
Transmission rewrote its RPC API to JSON-RPC 2.0 — then the 4.1 beta train stalled.
The whole visible history is the 4.1.0 beta series, running from December 2024 to January 2026 and developed in parallel with the 4.0.x bug-fix line since 2023. Across those betas the client picked up sequential downloading, a selectable µTP-versus-TCP preferred transport, proxy support for web connections, IPv6 and dual-stack UDP trackers, native platform icons, and a JSON-RPC 2.0-compliant RPC API with snake_case unified across RPC and settings.json. Feature freeze was declared at beta.5 in January 2026, and nothing has shipped since.
Hanko is a passkey-first authentication platform, open source or cloud-hosted. October's update lets teams bring attributes from SAML and custom OIDC connections into Hanko as custom claims, configured in the Cloud Console. Earlier 2026 releases added Firebase password hash import, inactivity logouts, session transparency and stronger passcode policies.
Hanko is filling in what enterprise customers expect from an identity provider: SSO attribute mapping, session controls and migration paths from incumbents. Releases arrive monthly or less, each with a narrow feature.
More enterprise SSO features, such as directory sync or role mapping from claims, are the likely next additions; the entries do not confirm a timeline.
The whole visible history is the 4.1.0 beta series, running from December 2024 to January 2026 and developed in parallel with the 4.0.x bug-fix line since 2023. Across those betas the client picked up sequential downloading, a selectable µTP-versus-TCP preferred transport, proxy support for web connections, IPv6 and dual-stack UDP trackers, native platform icons, and a JSON-RPC 2.0-compliant RPC API with snake_case unified across RPC and settings.json. Feature freeze was declared at beta.5 in January 2026, and nothing has shipped since.
The interesting work is at the integration boundary, not in the download engine: the RPC surface has been standardised and renamed, and beta.5 was largely spent repairing what those changes broke, including backwards-incompatible keys accidentally written into settings files. That is the cost profile of an API migration in a project with a large ecosystem of third-party remotes. With feature freeze held for seven months and no 4.1.0 final, the release is late relative to its own stated plan.
The next release should be 4.1.0 final or a further beta rather than new features, since the branch is frozen — but the entries give no signal on what is holding it.
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 Hanko or Transmission.
SavvyCal lets Claude or ChatGPT book and move meetings through an MCP server on every plan.
OpenStatus grows from uptime checks into incident management, from Slack, dashboard or API.
Airflow's provider candidates go final while 3.4 and the TypeScript SDK stay in testing.
Timely adds seat visibility and per-period budgets in a steady run of weekly releases.
Volatility 3 2.28.2 adds Mermaid tree output and starts deprecating macOS analysis.
GLAuth's September releases are security dependency updates and build fixes.
See all Hanko alternatives → · See all Transmission alternatives →
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
They serve adjacent needs but don't currently overlap on shipped themes. Hanko and Transmission are shipping at a similar cadence (velocity 0.0 vs 0.0, both within Sparkpulse's "active" band). See the at-a-glance table above for a side-by-side breakdown of velocity, recent sparks, and editorial themes.
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Hanko and Transmission are shipping at a similar cadence (velocity 0.0 vs 0.0, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Infra & APIs products to evaluate alongside.
Top Hanko alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Hanko alternatives" section above for the current picks, or visit /alternatives/hanko for the full list with editorial commentary on each.
Top Transmission alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Transmission alternatives" section above for the current picks, or visit /alternatives/transmission for the full list with editorial commentary on each.