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kasumaputu6633/visbridge-mcp

A token-efficient, provider-agnostic vision layer for reasoning models via MCP.

4 stars
1 forks
TypeScript
momentum ▲ 10.0
created 2026-08-12
on radar since 2026-08-15
star trend 3 → 4 since 2026-08-15
aillmmcpmodel-context-protocolmulti-agentmultimodalopenai-compatiblevision-language-modelvison
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About visbridge-mcp

Token-efficient vision for MCP clients. An MCP server (stdio + Streamable HTTP) exposing a single analyzeimage tool that lets any MCP client see images — describe, OCR, or inspect — through an OpenAI-compatible vision provider.

It exists for one reason: to give a model without native vision (or any client that wants to spend fewer tokens) the ability to understand images. The client sends only an image reference plus a mode; the server resolves the image, sends it to the vision model, and returns compact plain text.

- Two transports — stdio for local clients (Claude Code, Cursor), Streamable HTTP (POST /mcp) for remote / shared / team deployments. - One tool, three modes — describe (summarize), ocr (extract text), inspect (answer a specific question via prompt). - detail: low by default — cheaper and measurably better OCR than high. - Fence-free OCR — every OCR answer is stripped of markdown code fences defensively. - Four image sources — local path, url, base64 (data URL or raw), and resource (resolved against a configured directory). - Hardened — SSRF protection (private/loopback/link-local IPs blocked), DNS resolved before fetch, MIME sniffing (PNG/JPEG/WebP/GIF) + size limits, at most one redirect. - Structured errors — 11-code taxonomy, MCP-safe messages (no keys/URLs leak). - Observability — token/cost estimation and one JSON log line per call, written to stderr (never stdout, which is reserved for the JSON-RPC channel).

From the project README.

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