NS
Nishant OS
Initializing Nishant AI
LOADING0%
All work
ProductionAgentic Financial OS · Fintech · Jul 2026 – Present

LedgerMind

An agentic financial OS — a virtual accountant, bookkeeper, analyst, and CFO in one.

0
Live backend tests
against real Supabase
0/11
Roadmap complete
phases
Deterministic
Numbers
SQL/Python, not the LLM
Swappable
LLM providers
Anthropic · OpenAI · NIM

LedgerMind is an agentic financial operating system for small businesses — a virtual accountant, bookkeeper, analyst, and CFO in one platform. Users upload receipts or connect Gmail, and a chain of AI agents categorizes expenses, detects fraud, and monitors budgets — with a strict design principle: numbers are computed by SQL/Python, and the LLM only classifies and explains.

The problem

Small businesses juggle receipts, bookkeeping, tax, and forecasting across disconnected tools — hours of manual data entry, and no early warning when fraud or budget overruns creep in.

The solution

A LangGraph-orchestrated agent pipeline runs per receipt — OCR, then human review if confidence is low, then accounting categorization, fraud detection, and budget monitoring. Business-level intelligence (GST, forecasting, CFO summaries) runs on demand. A durable Postgres checkpointer makes every workflow resumable, pausing for human-in-the-loop review when needed.

System Architecture
Receipt / Gmailupload · OAuthPaddleOCRparseHuman Reviewlow-confidenceCategorizerLLM classifiesFraud DetectionLedger + CFOSupabase · SQL
Challenges solved
  • 1Keeping financial numbers exact — deterministic SQL/Python, never the LLM.
  • 2Durable, resumable agent workflows with human-in-the-loop checkpoints.
  • 3Securely ingesting real data (Gmail OAuth) with row-level security and audit logs.
Highlights
  • Deterministic by design: numbers via SQL/Python, LLM only classifies & explains.
  • LangGraph durable Postgres checkpointer with human-in-the-loop review.
  • 108 live tests against real Supabase infra — auth, RLS, agents, durability.
  • Provider-swappable LLM (Anthropic / OpenAI / NVIDIA NIM) + Gmail ingestion.
Technology
PythonFastAPILangGraphPaddleOCRNext.jsTypeScriptSupabasepgvectorRecharts
Next project
ESGenuine
ESG Document AI · LLM Evaluation