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flint-chart

Visualization language and MCP server that lets AI agents create charts from editable chart specs.

Harness by microsoft

IndexedMIT★ 4,438
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Install

From the package registry. Read the repository before you give any tool access to your data.

npm install flint-chart

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About

Flint is a chart specification language for AI agents. It supports 52 chart types across Vega-Lite, ECharts, Chart.js, Plotly and native Excel charts, with 14 themes and 23 interaction presets. It is offered as an MCP server for agent clients and as an npm library for building interactive applications.

Use cases: data-visualization, spreadsheets

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Fact sheet

Languages
TypeScript
Packages
flint-chart (npm), flint-chart-mcp (npm)README
MCP support
Via adapterREADME
Maturity
StableREADME

Facts extracted by Claude Haiku 5.5 from the linked sources on Oct 24, 2026. Wrong fact? Tell us.

Alternatives

Frameworks for the same language with a similar way of orchestrating agents.

Signals

Stars
4,438
Forks
256
Open issues
17
Last commit
Oct 21, 2026 (5 days ago)
Last release
Oct 21, 2026 (6 days ago)

From GitHub (fetched Oct 24, 2026).

Details

Packages
npm flint-chartnpm flint-chart-mcp
License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Cite this page

flint-chart. Agent Mart. https://agentmart.dev/harnesses/flint-chart (last updated 2026-10-24)