OpenStatus
OpenStatus scopes API keys per resource and lets its MCP server set up monitors.
Comparison · Infra & APIs
OpenMQTTGateway vs Scalar
A side-by-side editorial comparison of OpenMQTTGateway and Scalar — release velocity, themes, recent moves, and the top alternatives to consider.
OpenMQTTGateway vs Scalar: at a glance
What is OpenMQTTGateway?
OpenMQTTGateway spent three years shedding its dependencies, then stopped shipping entirely.
The last release was January 2025, a single bug fix for adaptive scanning restarting the gateway. Before that, the project moved steadily toward standing alone: 1.8.0 embedded an MQTT broker via PicoMQTT so a gateway no longer needs an external server, 1.6.0 added a web interface so it no longer needs a home automation controller to configure, and 1.5.0 brought device trackers for presence detection with over-the-air updates from the controller. Hardware arrived alongside software, with the Theengs Bridge in 1.7.0 and the Theengs Plug in 1.3.0.
What is Scalar?
Scalar's November 5 releases give each API document its own authentication settings
Scalar ships several package lines on separate version tracks. The November 5 API reference releases (1.77.0 and the ASP.NET Core 1.1.47) let each document carry its own authentication defaults, render specification extensions, and make search much faster on interconnected schemas. The mock server gained an onResponse hook and spec-correct path matching, and the API client hardened its CORS proxy against XSS and open redirects. The SDK generator now emits experimental signed-URL methods across ten languages and sends only the credentials each operation requires.
OpenMQTTGateway vs Scalar: editorial side-by-side
OpenMQTTGateway
0.0INFRA · APIS
OpenMQTTGateway spent three years shedding its dependencies, then stopped shipping entirely.
◆ Current state
The last release was January 2025, a single bug fix for adaptive scanning restarting the gateway. Before that, the project moved steadily toward standing alone: 1.8.0 embedded an MQTT broker via PicoMQTT so a gateway no longer needs an external server, 1.6.0 added a web interface so it no longer needs a home automation controller to configure, and 1.5.0 brought device trackers for presence detection with over-the-air updates from the controller. Hardware arrived alongside software, with the Theengs Bridge in 1.7.0 and the Theengs Plug in 1.3.0.
◆ Where it's heading
The arc through 1.2 to 1.8 is one of progressive independence — first from a controller for configuration, then from a broker for messaging — turning a bridge component into a self-contained device. Release intervals widened throughout: monthly in early 2023, then annual, then nothing for nineteen months. Whatever the roadmap was, the feed has not recorded activity since.
◆ Prediction
The evidence here does not support a confident prediction about what ships next; the project has published nothing in nineteen months. If it resumes, the unfinished thread is the embedded broker, which shipped in 1.8.0 and received only a scanning bug fix afterward.
Scalar
5.0INFRA · APIS
Scalar's November 5 releases give each API document its own authentication settings
◆ Current state
Scalar ships several package lines on separate version tracks. The November 5 API reference releases (1.77.0 and the ASP.NET Core 1.1.47) let each document carry its own authentication defaults, render specification extensions, and make search much faster on interconnected schemas. The mock server gained an onResponse hook and spec-correct path matching, and the API client hardened its CORS proxy against XSS and open redirects. The SDK generator now emits experimental signed-URL methods across ten languages and sends only the credentials each operation requires.
◆ Where it's heading
The reference renderer is in a polish phase after October's localhost toolbar and hosting waitlist, while the SDK generator is where breadth is growing fastest. Signed URLs, idempotency keys and per-operation credentials show Scalar chasing parity with dedicated SDK vendors across many languages.
◆ Prediction
The hosting waitlist has gone quiet in these notes; the clearest near-term pattern is signed-URL methods leaving experimental status and reaching the remaining SDK targets.
Alternatives to OpenMQTTGateway and Scalar
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 OpenMQTTGateway or Scalar.
Hoppscotch
Hoppscotch adds an enterprise cloud tier and an AI assistant, then turns to desktop trust.
Grype
Grype keeps tightening match accuracy while making its database diff tool usable at scale
AdGuard Home
AdGuard Home's 1.0 beta matches stable's security fixes and reworks client settings
Snort 3
Snort 3.13.2 is a broad bounds-checking sweep across SMB, HTTP and industrial protocol parsers
DNSimple
DNSimple's origin name servers answer a quarter faster at p90 after erldns work
See all OpenMQTTGateway alternatives → · See all Scalar alternatives →
Recent activity from OpenMQTTGateway and Scalar
Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.
- 1d agoScalarAPI Reference 1.77: per-document auth and faster search
- 1d agoScalarAPI client 0.12.50 hardens the CORS proxy
- 1d agoScalarASP.NET Core 1.1.47: per-document auth and body reset
- 1d agoScalarMock server 0.21: onResponse hook and spec-correct path matching
- 2d agoScalarSDK generator 0.38: per-operation credentials, better naming
- 5d agoScalarSDK generator 0.37.1: signed URLs in ten languages
- 1y agoOpenMQTTGatewayAdaptive scanning restart bug fixed
- 1y agoOpenMQTTGatewayAn MQTT broker moves inside the gateway ⚡
- 2y agoOpenMQTTGatewayTheengs Bridge hardware and Ethernet onboarding
- 3y agoOpenMQTTGatewayWeb interface removes the controller dependency
- 3y agoOpenMQTTGatewayWorkaround for stuck BLE scans
- 3y agoOpenMQTTGatewayPresence detection via automatic device trackers
Frequently asked questions
What is the difference between OpenMQTTGateway and Scalar?
They serve adjacent needs but don't currently overlap on shipped themes. Scalar is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 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 OpenMQTTGateway better than Scalar?
Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Scalar is currently shipping more aggressively (velocity 5.0 vs 0.0), with 0 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 OpenMQTTGateway?
Top OpenMQTTGateway alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "OpenMQTTGateway alternatives" section above for the current picks, or visit /alternatives/openmqttgateway for the full list with editorial commentary on each.
What are the best alternatives to Scalar?
Top Scalar alternatives in Infra & APIs are ranked by recent ship velocity. Browse the "Scalar alternatives" section above for the current picks, or visit /alternatives/scalar for the full list with editorial commentary on each.