Clients

Gemini CLI extension

parserail-gemini-extension is a Gemini CLI extension that adds native tools for financial-document work.

What Gemini gets

Financial-document extraction turns invoices, receipts, bank and card statements, and embedded tables into schema-validated JSON. The JSON carries the vendor, line items, totals and normalized transactions.
PII redaction strips names, emails, phones, SSNs and card numbers from text before you store or log it.
Contract review returns parties, term, renewal, obligations and flagged risk clauses.
The extension also provides general parsing, field extraction, classification, document comparison and splitting, plus about 30 more tools from the same API.

The extension runs the parserail-mcp MCP server. The MCP server page covers it.

Install

gemini extensions install https://github.com/kyisaiah47/parserail-gemini-extension

The install asks for your ParseRail API key.

Get a key

You sign up on this site and buy credits with a $20 pack or a plan from $19/mo. ParseRail has no free tier. ParseRail keys look like ksk_live_….

Billing uses a credit wallet and charges per call. You pay only when a call succeeds. Errors cost nothing.

Use it

Gemini can work on a document:

In Gemini CLI

> extract the line items from ./invoices/acme-march.pdf
> redact the PII from this support transcript before I paste it into the ticket
> review this contract and flag anything risky about renewal terms

Gemini routes each request through the right ParseRail tool, such as parserail_invoice, parserail_redact or parserail_contract, and returns structured JSON.

The bundled GEMINI.md tells the model which tool fits which document.

Requirements

Node.js 18 or later. The MCP server runs through npx.
A ParseRail API key in PARSERAIL_API_KEY.

Source: the parserail-gemini-extension README at github.com/kyisaiah47/parserail-gemini-extension, read 2026-10-02. Published on GitHub, installed by the Gemini CLI from the repository URL; it is not on npm.