{"repo":"bnomei/nereid","free":true,"listed":false,"github":"https://github.com/bnomei/nereid","clone":"git clone https://github.com/bnomei/nereid.git","description":"Create and explore Mermaid diagrams in collaboration with AI agents (TUI + MCP Server)","language":"Rust","stars":63,"topics":["agent","ai","ascii","export","import","mcp","mermaid","performance","ratatui","sequence"],"license":null,"category":"mcp-servers","readme_excerpt":"nereid Nereid is a terminal-first workspace for Mermaid-backed diagrams. It combines a ratatui TUI, a Model Context Protocol (MCP) server, folder-based session persistence, and deterministic text renders so humans and AI agents can inspect and update the same diagram session. Use Nereid when you want to: - browse and edit sequence, flowchart, class, entity-relationship (ER), and Gantt diagrams from a terminal, - keep diagrams, walkthroughs, cross-references, selections, and active state in a local session folder, - expose typed MCP tools for diagram navigation, structured mutation (including sequence blocks), xrefs, walkthroughs, and graph queries, - replace Mermaid sources with identity-preserving reconcile when fingerprints still match, - export Mermaid sources plus text previews for reviewable, file-based workflows. Nereid is source-available for noncommercial use only. Commercial use, product use, paid service use, internal business use, redistribution, sublicensing, or modified distribution requires separate written permission. See License. Recent releases - 0.9: Added class, entity-relationship, and Gantt diagrams across parsing, text rendering, the TUI, persisted sessions, and typed MCP reads. The built-in demo now covers all five diagram families. - 0.8: Added structured sequence block and section ops plus diagram replace from mermaid , which reconciles stable identities during bulk Mermaid rewrites and reports dangling xrefs. - 0.7: Added the fuzzy : diagram switcher","default_branch":null,"files":null,"tree":[],"storefront":"/r/bnomei","claimed":false,"request_supported":{"post":"https://gitbuyer.com/r/bnomei/nereid/request-supported","requests":0},"note":"indexed from public GitHub; nothing is for sale on this page. Clone it from GitHub. Paid listings live at /search."}