{"id":19,"date":"2026-08-22T00:27:59","date_gmt":"2026-08-22T00:27:59","guid":{"rendered":"https:\/\/manualninja.com\/tech-specs\/"},"modified":"2026-08-23T18:56:34","modified_gmt":"2026-08-23T18:56:34","slug":"tech-specs","status":"publish","type":"page","link":"https:\/\/manualninja.com\/ja\/tech-specs\/","title":{"rendered":"Tech Specs"},"content":{"rendered":"

[et_pb_section fb_built=”1″ admin_label=”Hero” _builder_version=”4.27.8″ background_color=”#006799″ custom_padding=”100px||100px||false|false” hover_enabled=”0″ global_colors_info=”{}” title_text=”mailninja tech specs” background_image=”https:\/\/manualninja.com\/wp-content\/uploads\/2026\/08\/mailninja-tech-specs.jpg” sticky_enabled=”0″][et_pb_row _builder_version=”4.27.8″ hover_enabled=”0″ global_colors_info=”{}” background_color=”rgba(76,76,76,0.63)” sticky_enabled=”0″][et_pb_column type=”4_4″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.8″ header_text_color=”#ffffff” text_orientation=”center” hover_enabled=”0″ global_colors_info=”{}” text_text_color=”#FFFFFF” sticky_enabled=”0″]<\/p>\n

Tech Specs<\/h1>\n

A modern RAG architecture with AI vision.<\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ admin_label=”Architecture” _builder_version=”4.27.4″ background_color=”#ffffff” custom_padding=”90px||90px||false|false” global_colors_info=”{}”][et_pb_row _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#3e3e3e” header_text_color=”#006799″ global_colors_info=”{}”]<\/p>\n

Architecture at a glance<\/h2>\n

ManualNinja is a multi-tenant RAG application with a Python backend, a React SPA frontend, a PostgreSQL database, and a Qdrant vector store. PDFs are parsed, chunked, embedded and served as cited answers through a chat interface. The platform now includes AI vision for image analysis, OAuth social login, and Stripe-powered subscription billing.<\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ admin_label=”Stack” _builder_version=”4.27.4″ background_color=”#f4f4f4″ custom_padding=”90px||90px||false|false” global_colors_info=”{}”][et_pb_row column_structure=”2_5,3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_column type=”2_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#006799″ header_text_color=”#006799″ global_colors_info=”{}”]Backend API<\/strong>[\/et_pb_text][\/et_pb_column][et_pb_column type=”3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#3e3e3e” global_colors_info=”{}”]FastAPI + Uvicorn (Python 3.13). REST endpoints for auth, manuals, chat, billing, and admin. JWT-based authentication with OAuth2.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”2_5,3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_column type=”2_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#006799″ header_text_color=”#006799″ global_colors_info=”{}”]Frontend<\/strong>[\/et_pb_text][\/et_pb_column][et_pb_column type=”3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#3e3e3e” global_colors_info=”{}”]React 18 + Vite. Single-page application with chat UI, admin panel, billing portal, and superadmin dashboard.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”2_5,3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_column type=”2_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#006799″ header_text_color=”#006799″ global_colors_info=”{}”]Database<\/strong>[\/et_pb_text][\/et_pb_column][et_pb_column type=”3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#3e3e3e” global_colors_info=”{}”]PostgreSQL 17. Stores organizations, users, manuals, chat sessions, usage tracking, and configurable settings.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”2_5,3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_column type=”2_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#006799″ header_text_color=”#006799″ global_colors_info=”{}”]Vector store<\/strong>[\/et_pb_text][\/et_pb_column][et_pb_column type=”3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#3e3e3e” global_colors_info=”{}”]Qdrant 1.19. Semantic search over manual chunks with organization-scoped filtering.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”2_5,3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_column type=”2_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#006799″ header_text_color=”#006799″ global_colors_info=”{}”]Embeddings<\/strong>[\/et_pb_text][\/et_pb_column][et_pb_column type=”3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#3e3e3e” global_colors_info=”{}”]BAAI\/bge-small-en-v1.5 (384 dimensions, CPU). Local inference \u2014 no external embedding API calls.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”2_5,3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_column type=”2_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#006799″ header_text_color=”#006799″ global_colors_info=”{}”]LLM (text)<\/strong>[\/et_pb_text][\/et_pb_column][et_pb_column type=”3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.8″ text_text_color=”#3e3e3e” hover_enabled=”0″ global_colors_info=”{}” sticky_enabled=”0″]<\/p>\n

OpenAI-compatible API. Default model: deepseek\/deepseek-v3-0324. Configurable via superadmin dashboard.
Want a local ai for security, no problem. Contact us<\/a><\/p>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”2_5,3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_column type=”2_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#006799″ header_text_color=”#006799″ global_colors_info=”{}”]LLM (vision)<\/strong>[\/et_pb_text][\/et_pb_column][et_pb_column type=”3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#3e3e3e” global_colors_info=”{}”]Novita AI vision model \u2014 google\/gemma-3-27b-it. Analyzes uploaded images (device labels, error screens, nameplates) with OCR and structured extraction.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”2_5,3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_column type=”2_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#006799″ header_text_color=”#006799″ global_colors_info=”{}”]PDF extraction<\/strong>[\/et_pb_text][\/et_pb_column][et_pb_column type=”3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#3e3e3e” global_colors_info=”{}”]PyMuPDF (fitz). Page-level chunking with metadata preservation for accurate citations.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”2_5,3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_column type=”2_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#006799″ header_text_color=”#006799″ global_colors_info=”{}”]Authentication<\/strong>[\/et_pb_text][\/et_pb_column][et_pb_column type=”3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#3e3e3e” global_colors_info=”{}”]JWT tokens + Google OAuth 2.0 + LinkedIn OAuth 2.0 (OpenID Connect). Email verification with configurable SMTP.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”2_5,3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_column type=”2_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#006799″ header_text_color=”#006799″ global_colors_info=”{}”]Payments<\/strong>[\/et_pb_text][\/et_pb_column][et_pb_column type=”3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#3e3e3e” global_colors_info=”{}”]Stripe \u2014 recurring subscriptions via Checkout, customer portal for self-service management, webhook-driven lifecycle events.[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”2_5,3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_column type=”2_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#006799″ header_text_color=”#006799″ global_colors_info=”{}”]Reverse proxy<\/strong>[\/et_pb_text][\/et_pb_column][et_pb_column type=”3_5″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#3e3e3e” global_colors_info=”{}”]Caddy \u2014 automatic HTTPS via Let’s Encrypt, HTTP\/2, HTTP\/3 support.[\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ admin_label=”Multi-tenancy” _builder_version=”4.27.4″ background_color=”#ffffff” custom_padding=”90px||90px||false|false” global_colors_info=”{}”][et_pb_row _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#3e3e3e” header_text_color=”#006799″ global_colors_info=”{}”]<\/p>\n

Multi-tenancy & isolation<\/h2>\n

Each customer organization gets a fully isolated workspace:<\/p>\n

    \n
  • Organization-scoped users, manuals, and chat sessions<\/li>\n
  • Qdrant payloads include org_id \u2014 vector search is always filtered<\/li>\n
  • Tier-based limits: questions\/month, storage, question length, manual count<\/li>\n
  • All integration keys (Stripe, Google, LinkedIn, LLM, SMTP, reCAPTCHA) are configurable per deployment via the admin UI<\/li>\n<\/ul>\n

    [\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ admin_label=”Security” _builder_version=”4.27.4″ background_color=”#f4f4f4″ custom_padding=”90px||90px||false|false” global_colors_info=”{}”][et_pb_row _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#3e3e3e” header_text_color=”#006799″ text_orientation=”center” global_colors_info=”{}”]<\/p>\n

    Security & data protection<\/h2>\n

    ManualNinja is built with security as a first-class priority. Every layer of the stack is hardened to protect your data and your customers’ trust.<\/p>\n

    [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_3,1_3,1_3″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_column type=”1_3″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_blurb title=”End-to-end encryption” use_icon=”on” font_icon=”%%123%%” _builder_version=”4.27.4″ header_text_color=”#006799″ background_color=”#ffffff” custom_padding=”30px|30px|30px|30px|true|true” border_radii=”on|8px|8px|8px|8px” border_width_all=”1px” border_color_all=”#d9d9d9″ global_colors_info=”{}”]All traffic is served over HTTPS with TLS 1.2\/1.3 via Caddy with automatic Let’s Encrypt certificates. No plaintext connections accepted.[\/et_pb_blurb][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_blurb title=”Secure authentication” use_icon=”on” font_icon=”%%114%%” _builder_version=”4.27.4″ header_text_color=”#006799″ background_color=”#ffffff” custom_padding=”30px|30px|30px|30px|true|true” border_radii=”on|8px|8px|8px|8px” border_width_all=”1px” border_color_all=”#d9d9d9″ global_colors_info=”{}”]JWT-based auth with strong secrets, bcrypt password hashing, OAuth 2.0 with CSRF-protected state validation, and short-lived exchange codes instead of tokens in URLs.[\/et_pb_blurb][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_blurb title=”Brute-force protection” use_icon=”on” font_icon=”%%129%%” _builder_version=”4.27.4″ header_text_color=”#006799″ background_color=”#ffffff” custom_padding=”30px|30px|30px|30px|true|true” border_radii=”on|8px|8px|8px|8px” border_width_all=”1px” border_color_all=”#d9d9d9″ global_colors_info=”{}”]Login rate limiting (10 attempts per 5 minutes per IP), signup rate limiting (3 per IP per day), and mandatory Google reCAPTCHA on public signup.[\/et_pb_blurb][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_3,1_3,1_3″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_column type=”1_3″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_blurb title=”Multi-tenant isolation” use_icon=”on” font_icon=”%%103%%” _builder_version=”4.27.4″ header_text_color=”#006799″ background_color=”#ffffff” custom_padding=”30px|30px|30px|30px|true|true” border_radii=”on|8px|8px|8px|8px” border_width_all=”1px” border_color_all=”#d9d9d9″ global_colors_info=”{}”]Every database query and vector search is scoped by organization_id. No cross-tenant data leakage is possible \u2014 your manuals and chats are yours alone.[\/et_pb_blurb][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_blurb title=”Safe file uploads” use_icon=”on” font_icon=”%%110%%” _builder_version=”4.27.4″ header_text_color=”#006799″ background_color=”#ffffff” custom_padding=”30px|30px|30px|30px|true|true” border_radii=”on|8px|8px|8px|8px” border_width_all=”1px” border_color_all=”#d9d9d9″ global_colors_info=”{}”]PDF uploads are validated by magic bytes, content type, and a 50 MB hard size limit. Files are stored with UUID names \u2014 no path traversal possible.[\/et_pb_blurb][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_blurb title=”Verified webhooks” use_icon=”on” font_icon=”%%115%%” _builder_version=”4.27.4″ header_text_color=”#006799″ background_color=”#ffffff” custom_padding=”30px|30px|30px|30px|true|true” border_radii=”on|8px|8px|8px|8px” border_width_all=”1px” border_color_all=”#d9d9d9″ global_colors_info=”{}”]Stripe payment webhooks are always signature-verified. No unauthenticated payment events are ever processed \u2014 the system fails closed if the secret is missing.[\/et_pb_blurb][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=”1_3,1_3,1_3″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_column type=”1_3″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_blurb title=”Internal services only” use_icon=”on” font_icon=”%%118%%” _builder_version=”4.27.4″ header_text_color=”#006799″ background_color=”#ffffff” custom_padding=”30px|30px|30px|30px|true|true” border_radii=”on|8px|8px|8px|8px” border_width_all=”1px” border_color_all=”#d9d9d9″ global_colors_info=”{}”]The FastAPI backend and Qdrant vector database bind to 127.0.0.1 only. They are never directly accessible from the internet \u2014 all external traffic goes through the Caddy reverse proxy.[\/et_pb_blurb][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_blurb title=”Email verification” use_icon=”on” font_icon=”%%109%%” _builder_version=”4.27.4″ header_text_color=”#006799″ background_color=”#ffffff” custom_padding=”30px|30px|30px|30px|true|true” border_radii=”on|8px|8px|8px|8px” border_width_all=”1px” border_color_all=”#d9d9d9″ global_colors_info=”{}”]Signup requires email verification with time-limited tokens (24-hour expiry). Unverified accounts cannot log in.[\/et_pb_blurb][\/et_pb_column][et_pb_column type=”1_3″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_blurb title=”Audit logging” use_icon=”on” font_icon=”%%122%%” _builder_version=”4.27.4″ header_text_color=”#006799″ background_color=”#ffffff” custom_padding=”30px|30px|30px|30px|true|true” border_radii=”on|8px|8px|8px|8px” border_width_all=”1px” border_color_all=”#d9d9d9″ global_colors_info=”{}”]All admin and superadmin actions \u2014 organization creation, user management, settings changes \u2014 are logged to a dedicated audit trail for accountability and compliance.[\/et_pb_blurb][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=”1″ admin_label=”CTA” _builder_version=”4.27.4″ background_color=”#006799″ custom_padding=”80px||80px||false|false” global_colors_info=”{}”][et_pb_row _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_column type=”4_4″ _builder_version=”4.27.4″ global_colors_info=”{}”][et_pb_text _builder_version=”4.27.4″ text_text_color=”#FFFFFF” header_text_color=”#ffffff” text_orientation=”center” global_colors_info=”{}”]<\/p>\n

    Want to see it in action?<\/h2>\n

    [\/et_pb_text][et_pb_button button_url=”https:\/\/app.manualninja.com\/signup” button_text=”Start free” button_alignment=”center” _builder_version=”4.27.4″ global_colors_info=”{}”][\/et_pb_button][et_pb_button button_url=”\/product” button_text=”Back to product” button_alignment=”center” _builder_version=”4.27.4″ global_colors_info=”{}”][\/et_pb_button][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"

    Tech Specs A modern RAG architecture with AI vision.Architecture at a glance ManualNinja is a multi-tenant RAG application with a Python backend, a React SPA frontend, a PostgreSQL database, and a Qdrant vector store. PDFs are parsed, chunked, embedded and served as cited answers through a chat interface. The platform now includes AI vision for […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"class_list":["post-19","page","type-page","status-publish","hentry"],"yoast_head":"\nTech Specs \u2014 Architecture, Security & Stack | ManualNinja<\/title>\n<meta name=\"description\" content=\"ManualNinja runs on FastAPI, React, PostgreSQL, and Qdrant. End-to-end TLS, JWT auth, multi-tenant isolation, brute-force protection, audit logging, and verified Stripe webhooks. 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