Lets your coding agent build data portals with PortalJS: plan the stack, scaffold a portal, load datasets, add charts and maps, deploy.
by datopian· Data & analyticsUnclaimed · Yours? Claim it
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About
PortalJS is Datopian's open-source framework for building data portals: a Home page, a searchable Catalog and a Showcase page for each dataset, as plain, editable Next.js code. This is Datopian's own Claude Code plugin for it: 14 commands, with matching skills, that take your agent from a brief to a working portal. What's inside - portaljs-architect: recommends a portal architecture (storage, compute, catalog, access, hosting, metadata) from your needs, then hands off to the build skills - portaljs-new-portal: scaffolds a new portal from a brief, installs its dependencies and checks the build - portaljs-add-dataset and portaljs-add-resource: add CSV, TSV, JSON or GeoJSON datasets, or extra files such as a data dictionary, and the catalog and showcase render them automatically - portaljs-add-chart and portaljs-add-map: add a line, bar, area, pie or scatter chart, or an interactive map, to a dataset's showcase - portaljs-add-geo: turns Shapefile, GeoPackage, KML, FlatGeobuf and other geospatial files into map-ready and queryable versions on your own machine - portaljs-define-schema and portaljs-check-data-quality: infer a Frictionless Table Schema with license and source metadata, and audit a CSV for type mismatches, nulls and duplicates - portaljs-connect-ckan: feeds the catalog from a live CKAN instance instead of static files - portaljs-migrate and arcgis-to-portaljs: harvest catalogs from CKAN, Socrata, OpenDataSoft, ArcGIS or DCAT feeds - portaljs-add-dcat: publishes DCAT feeds (DCAT-AP, DCAT-US and national profiles) so open-data portals such as data.europa.eu and data.gov can harvest yours - portaljs-deploy: builds a static export and publishes it to PortalJS Arc, Datopian's managed hosting, at a your-slug.arc.portaljs.com address How to install In Claude Code, run /plugin marketplace add datopian/portaljs, then /plugin install portaljs@datopian-portaljs. Datopian also offers a script that installs the commands into ~/.claude/commands, and they work from a clone of the repository too. Scaffolding a portal needs Node.js 22 or later. Good to know - The skills are interactive: if your brief is thin, they ask questions in short rounds. - The portal is plain Next.js you own, and you can host its static export anywhere. - Deploying to PortalJS Arc, and pushing local data files to Cloudflare R2 (the default for added datasets), use a PortalJS Arc account; the skill signs you in with a device code.
Once it’s added
“We have about 200 public CSVs, updated quarterly, and must publish DCAT-AP. What should our portal run on?”
“Build a new data portal: the Auckland Council open data portal.”
“Add ./data/air-quality.csv to the portal.”
“Add https://example.com/parks.geojson and show it on a map.”
“Add a bar chart to the air quality dataset's page.”
“Deploy the portal to a live URL.”
Before you add it
Reads only
Your brief, data files and remote dataset URLs · CKAN, Socrata, OpenDataSoft, ArcGIS and DCAT catalogs you harvest
Makes changes · your agent can ask first
A Next.js portal in your project, with its datasets.json catalog · Charts, maps and schema metadata on dataset pages · Data files pushed to R2, and deploys to PortalJS Arc
From people who use it
Step by step
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Runs on your machine.
/plugin marketplace add datopian/portaljs /plugin install portaljs@datopian-portaljs
Scanned and passed · checked 6 h ago
Plugins people install alongside PortalJS.
Scanned on every change, and again when our rules improve.
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Safe to install in every agent it supports. Claude plugins.
Plugins people install alongside PortalJS.
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