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  3. Largest Cities by GDP
Visual Capitalist@VisualCap · Sep 24, 2026 · Slope chart

Largest Cities by GDP

Visual Capitalist's slope chart drew 32.1K views on X: 1.4x its typical post and #28 of 133 Visual Capitalist charts we track by views. Read Oct 10, 2026.

Ranked: The World’s Strongest City Economies by 2050 🏙️

Posted on X by @VisualCap (Visual Capitalist), Sep 24, 2026. Source: x.com · See its data

Why it spread

This post spread because it paired an unusual chart type with a hot topic that week, reaching 32,065 views, 217 likes, 42 reposts, 2 quotes, and 41 saves from an account in the top quarter for source reach.

What worked

  • The slope chart form is unusual, which helped it stand out from more common chart types.
  • The topic of largest cities by GDP shifting from the Americas to Asia was hot that week, giving the post timely relevance.
  • It came from a branded account with a visible source line and top quarter source reach, which added credibility and distribution.

What to borrow

We could use a slope chart to show how a ranking or share shifts between two points in time for our own data, and time the release to a topic already getting attention that week.

Careful

Do not over-read the low quote rate, which sits in the bottom quarter, and do not assume the design polish, self labelling, or unusual form alone drove the result without the hot topic.

Written by our analysis model from the measured numbers above, not by Visual Capitalist.

Make it yours

Your numbers, in this line chart.

Starts from the real numbers of "Largest Cities by GDP 2025 to 2050P" by Visual Capitalist. Replace every number with yours before you post. Make one like this, step by step

Free pictures carry a small "Made with ViralChart" line. That line is how other people find us.

API · Max

Use this chart via API

On the Max plan you can pull this chart's numbers with the provenance of each one, as JSON or CSV, with its redraw spec, or call it from an agent over MCP. Chart id efb8be18859f.

Approximate values. Our two readings of this chart agreed only in part (confidence 0.43 of 1), so check the original before you quote a number. The API marks it lowConfidence, and ?min_confidence=0.5 leaves it out.

PathReturnsPlan
GET/api/v1/charts/efb8be18859fTitle, publisher, date, form, point count; with a Max key, the data linkOpen
GET/api/v1/charts/efb8be18859f/dataEvery point with its provenance and confidence, plus the redraw spec. Add ?format=csv for CSVMax
GET/api/v1/charts/efb8be18859f/render?view=1The draw-only view this page usesOpen
POST/mcpTool get_chart_data with this id, for Claude, Cursor and other agentsMax
curlMax
curl -s https://viral-chart.com/api/v1/charts/efb8be18859f/data \
  -H "Authorization: Bearer $VIRALCHART_KEY"
Claude CodeMax
claude mcp add --transport http viralchart https://viral-chart.com/mcp \
  --header "Authorization: Bearer $VIRALCHART_KEY"

60 requests a minute per key; over that you get 429 with Retry-After. Up to 5 keys per account, made on your account page and shown once. Without Max, the data route answers 402 with a link to the plans. The numbers describe a chart its publisher owns, and every file carries a license note.

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Questions people ask

How far did Visual Capitalist's "Largest Cities by GDP" chart travel?

32,065 views, 217 likes, 42 reposts and 41 saves on X, read Oct 10, 2026. A normal post from @VisualCap gets about 23.1K views.

What kind of chart is it?

A slope chart. Largest cities by GDP shift from Americas to Asia.

Can I use Visual Capitalist's chart?

Use the format, not the picture. The chart, logo and design belong to Visual Capitalist. ViralChart redraws the chart type with your numbers and words, and credits the original publisher.