← Back to home
Comparison · Analytics

Calibre vs MotherDuck

A side-by-side editorial comparison of Calibre and MotherDuck — release velocity, themes, recent moves, and the top alternatives to consider.

Calibre vs MotherDuck: at a glance

FeatureCalibreMotherDuck
SectorAnalyticsAnalytics
Velocity score6.36.3
Sparks · 30d11
Top themesweb-performance, mcp, coding-agents, rumduckdb-cloud, agentic-analytics, data-apps, access-control
Last editorial update2d ago2h ago
WebsiteVisit →Visit →

What is Calibre?

Calibre MCP lets your coding agent read RUM and Lighthouse data, then fix the slow code

Calibre now ships a read-only MCP server that gives Claude Code, Cursor, Codex, Copilot, Claude and ChatGPT access to an account's RUM, CrUX and Synthetic data, included on every plan with nothing to install. It lands days after Test Agents moved to Chrome 156 and Lighthouse 13.6.0, which added audits for how AI agents read pages. Admins can disable MCP per organisation and revoke connections, and the Company-plan audit log records them.

Read the full Calibre trajectory →

What is MotherDuck?

MotherDuck rebuilds its UI so the first thing you see is an agent, not a SQL editor.

MotherDuck ships a weekly changelog. The November 3 release redesigns the UI around Agent Chat: Home opens with a prompt where the agent answers questions, loads data with Flights, saves context in Guides and builds Dives, with confirmation before destructive operations. Admins can enable web search for the agent, Agent Chat runs inside Dive presentation mode, and Enterprise orgs get one login across linked organizations. October filled out governance with row- and column-level security and Flight run grants.

Read the full MotherDuck trajectory →

Calibre vs MotherDuck: editorial side-by-side

C
Calibre
ANALYTICS
6.3

Calibre MCP lets your coding agent read RUM and Lighthouse data, then fix the slow code

◆ Current state

Calibre now ships a read-only MCP server that gives Claude Code, Cursor, Codex, Copilot, Claude and ChatGPT access to an account's RUM, CrUX and Synthetic data, included on every plan with nothing to install. It lands days after Test Agents moved to Chrome 156 and Lighthouse 13.6.0, which added audits for how AI agents read pages. Admins can disable MCP per organisation and revoke connections, and the Company-plan audit log records them.

◆ Where it's heading

Calibre is turning its monitoring data into something agents act on rather than something people read in dashboards. The summer work on deployment markers, all-pages aggregates and the audit log built the context and governance an agent needs: which deploy, which page, who connected. Expect the remaining surface to follow the same path, with agents both querying performance and being measured by it.

◆ Prediction

The likely next step is write access or deploy-linked workflows over MCP, such as an agent opening a fix tied to a regression marker, since the current server is explicitly read-only and the launch frames fixing as the goal.

M
MotherDuck
ANALYTICS
6.3

MotherDuck rebuilds its UI so the first thing you see is an agent, not a SQL editor.

◆ Current state

MotherDuck ships a weekly changelog. The November 3 release redesigns the UI around Agent Chat: Home opens with a prompt where the agent answers questions, loads data with Flights, saves context in Guides and builds Dives, with confirmation before destructive operations. Admins can enable web search for the agent, Agent Chat runs inside Dive presentation mode, and Enterprise orgs get one login across linked organizations. October filled out governance with row- and column-level security and Flight run grants.

◆ Where it's heading

The arc runs from SQL warehouse to agent-driven data app platform: Flights went GA, Dives gained write-back, Agent Chat learned to build Dives, and now the agent is the front door. Governance work runs in parallel so the agent operates inside admin controls. AI pricing is moving too, with cheaper OpenAI-backed functions and billing for prompt_jev().

◆ Prediction

Expect Agent Chat to gain more admin controls and usage-based pricing detail, given web search and the agent both ship as admin toggles on paid plans. SQL-first features will likely keep arriving behind the agent rather than ahead of it.

Alternatives to Calibre and MotherDuck

Other Analytics 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 Calibre or MotherDuck.

See all Calibre alternatives → · See all MotherDuck alternatives →

Recent activity from Calibre and MotherDuck

Latest ship moves from both products, interleaved chronologically. ⚡ = editorial spark.

  1. 1d agoMotherDuckRedesigned UI puts Agent Chat on the home screen ⚡
  2. 2d agoCalibreCalibre MCP: connect your coding agent to your performance data ⚡
  3. 5d agoCalibreChrome 156 & Lighthouse 13.6.0
  4. 12d agoMotherDuckRow-level security, Dive write-back and Flight run grants
  5. 19d agoMotherDuckImage inputs for prompt_jev() and Agent Chat that builds Dives
  6. 27d agoMotherDuckAdmin API user listing, connection timeouts, prompt_jev() in EU
  7. 1mo agoMotherDuckAI functions 50-60% cheaper; prompt_jev() billing begins
  8. 1mo agoMotherDuckCross-region DuckLake paths and leaner LIMIT queries
  9. 1mo agoCalibreCore Web Vitals Test, now with ad metrics
  10. 2mo agoCalibreSynthetic Metrics: All pages, segmented by Test Profile and Deployment
  11. 2mo agoCalibreSee the performance impact of every website deployment
  12. 3mo agoCalibreMonitor Single Page App performance with soft navigations

Frequently asked questions

What is the difference between Calibre and MotherDuck?

They serve adjacent needs but don't currently overlap on shipped themes. Calibre and MotherDuck are shipping at a similar cadence (velocity 6.3 vs 6.3, 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.

Is Calibre better than MotherDuck?

Sparkpulse doesn't pick a winner — we score release velocity, not feature parity. Calibre and MotherDuck are shipping at a similar cadence (velocity 6.3 vs 6.3, both within Sparkpulse's "active" band). For your specific use case, the alternatives sections above list other Analytics products to evaluate alongside.

What are the best alternatives to Calibre?

Top Calibre alternatives in Analytics are ranked by recent ship velocity. Browse the "Calibre alternatives" section above for the current picks, or visit /alternatives/calibreapp for the full list with editorial commentary on each.

What are the best alternatives to MotherDuck?

Top MotherDuck alternatives in Analytics are ranked by recent ship velocity. Browse the "MotherDuck alternatives" section above for the current picks, or visit /alternatives/motherduck for the full list with editorial commentary on each.