Chart + MinIO MCP Server
MCP server combining chart generation and MinIO object storage — enabling AI agents to generate charts and visualizations from data, store them in MinIO (S3-compatible object storage), and retrieve URLs for embedding in documents and reports. Enables agents to create visual data outputs that persist beyond the conversation context.
Score Breakdown
⚙ Agent Friendliness
🔒 Security
MinIO access key/secret. Configure HTTPS for MinIO. Chart content may be sensitive — control bucket ACLs. Keep credentials secure.
⚡ Reliability
Best When
An agent needs to create charts from data and store them persistently — combining chart generation with S3/MinIO storage enables shareable visualization artifacts.
Avoid When
You don't have MinIO or S3 storage available, or you need interactive/dynamic charts rather than static images.
Use Cases
- • Generating charts from data and storing them in MinIO from reporting agents
- • Creating visualizations for reports and dashboards from data analysis agents
- • Producing shareable chart URLs for embedding in documents from documentation agents
- • Building data visualization pipelines with persistent storage from analytics agents
- • Generating and archiving time-series charts from monitoring agents
Not For
- • Teams without MinIO or S3-compatible object storage infrastructure
- • Interactive/dynamic charts (this generates static chart images)
- • Real-time dashboard streaming (static chart generation only)
Interface
Authentication
MinIO/S3 access key and secret key required. Configure endpoint URL, access key, and secret key. Set MINIO_ENDPOINT, MINIO_ACCESS_KEY, MINIO_SECRET_KEY environment variables.
Pricing
MCP server and MinIO are both free for self-hosted use. If using AWS S3 as backend, standard S3 storage costs apply.
Agent Metadata
Known Gotchas
- ⚠ Requires MinIO or S3-compatible storage already running — not plug-and-play without storage
- ⚠ Chart types and customization options depend on underlying charting library
- ⚠ Generated chart URLs may require public bucket access — configure MinIO bucket policies carefully
- ⚠ Community MCP with limited documentation — test chart types before relying on in production
- ⚠ Data format requirements for chart generation must be matched exactly
Alternatives
Full Evaluation Report
Detailed scoring breakdown, competitive positioning, security analysis, and improvement recommendations for Chart + MinIO MCP Server.
Scores are editorial opinions as of 2026-03-06.