Left Hook
Toolkit
Engines for the marketplace graph, integration runtime, and vendor change signals — plus the sanctioned path agents and apps use to read Toolkit data.
Engines
Graduated engines and Toolkit previews — open any tile to explore.
- Graduated
Market Graph
Published marketplace graph — where products show up across directories.
1,605 dirs · 35,684 apps
Open - Graduated
Frigg
Open-source integration framework that runs in your cloud.
Open source · runs in your cloud
Open - Preview
Upstream
Vendor API changes matched to Frigg module pins, with draft fix PRs.
1 Critical · 2 Fix PRs ready
Open - Preview
Customer Signal
Ranked apps customers ask for, with marketplace signals and CRM unlock.
Top ask: HubSpot
Open - Preview
Scorecard
Integration readiness scoring for your product and stack.
Example 25/40
Open - Preview
Test Bench
Exercise connectors and flows against vendor sandboxes.
3 sandboxes · 2 pass
Open - Preview
Capability Graph
Map what connected systems can do together.
4 systems · 4 edges
Open - Preview
Watchtower
Monitor production integration health and regressions.
0 open incidents
Open
API
How agents and apps read Toolkit data. There is no separate public REST catalog on this page.
Sanctioned read path
Marketing /api/explorer/* is the public projection of the marketplace graph (ADR 0017). Those routes are thin proxies onto admin /api/public/v1/explorer/*. Apps and browsers read Toolkit data there — the same snapshot that powers Market Graph.
Left Hook MCP
Left Hook MCP is the agent path to that same projection. Connect an MCP client to query Toolkit data without inventing a second REST surface.