PassPaper (Bin-H-17/passpaper) is an MCP server listed on the M8ven Trust Index. It scores 89 out of 100, grade B. It declares 9 tools. The publisher has proved control of what we score (Verified Publisher). It is connected through the M8ven GitHub App, so the listing is re-checked on every push.
Enables AI agents like Claude Code and Codex to read handwriting and sketches drawn on a tablet in real time via MCP, with local recognition to text/LaTeX, session recording, and export to Markdown/Excalidraw.
Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
How we verified
Monitored 25 days · every push re-verified
Install from
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PASSPAPER_FGPASSPAPER_HOME环境变量: 可改数据目录(测试/便携安装用)PASSPAPER_RECOGNIZER_ENDPOINT1. 中文潦草 / 公式手写识别(本地、隐私) — 配置本地 VLM(,如 ollama / llama.cpp / vLLM 的 OpenAI 兼容端点)后,图片在交给 Agent 前会先转成结构化文本 / LaTeX。未配置时回退到「Agent 直接看图」。详见 [docs/RECOGNITION.md](docs/RECOGNITION.md)。PASSPAPER_RECOGNIZER_MODELPASSPAPER_RECOGNIZER_KEYTool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
9/9 tools missing one or more hints — get_handwriting (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); clear_canvas (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); get_handwriting_status (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +6 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Tool test coverage
6/9 tools referenced in tests (67%)
Write tests that reference each tool by name so every tool has at least one test.
[](https://m8ven.ai/mcp/bin-h-17/passpaper)?variant=verified to the badge URL.Vetting this one by hand? Tool Check is an MCP that scores other MCPs. Add it once and ask Claude, ChatGPT, or any MCP client to grade a server, surface CVEs, check the publisher, and suggest safer alternatives — before you install.
https://m8ven.ai/api/mcp/tool-check