Catalog CLI

Agent-native Amazon catalog auditing tool

The first AI-agent-friendly Amazon catalog analysis tool. Query your CLRs with structured input, integrate via MCP server, and automate catalog audits.

Hosted API available at api.catalogcli.com — persistent storage, unlimited scans, and API access for $9.99/mo. Learn more

What's New in v2.3

• Seller Central AJAX lookup - Fetch Amazon's live Seller Central listing JSON with catalog listing fetch <asin>
• Live listing vs CLR diff - Compare Amazon's current listing fields against your Category Listing Report with catalog listing diff <asin> <clr-file>
• Agent-ready Seller Central tools - New MCP tools catalog_seller_listing_fetch and catalog_seller_listing_diff
• Local cookie auth - Use --cookie, --cookie-file, or CATALOG_SELLER_CENTRAL_COOKIE; Seller Central cookies stay local

v2.2 Title Readiness

• Amazon title readiness - mobile-title-readiness flags titles over 75 characters for Amazon's mobile title update
• Rewrite-ready output - Returns first-75-character title segments, overflow text, significant terms, item highlight status, and recommended next actions
• Agent workflow friendly - Aliases title-75 and amazon-title-75 make it easy to call from Claude, MCP clients, and automation workflows
• 14 built-in checks - Adds a title triage workflow while keeping the classic 200-character long-titles check unchanged

v2.0 Agent Foundations

• Shared core architecture - Business logic separated into catalog/core/, powering both CLI and MCP
• MCP server - catalog mcp launches a stdio MCP server with 4 tools, ready for Claude Desktop and any MCP client
• JSON input - --json and --stdin flags for structured agent input
• Schema introspection - catalog schema --format json returns full request/response schemas
• Field masks - --fields sku,severity,details to reduce output size
• Pagination - --limit and --offset for controlling result size
• NDJSON streaming - --format ndjson for line-by-line streaming of large results
• Input hardening - Pydantic validation rejects path traversal, injection, and malformed input
• Environment variables - CATALOG_CLI_DEFAULT_FORMAT=json for headless/CI use
• Backward compatible - All v1.x commands work unchanged

Features

• Agent-Native - CLI + MCP server as equal citizens, JSON/NDJSON output, schema introspection
• Fast - Query 1000+ SKU catalogs in seconds
• Extensible - Plugin system for custom queries
• Comprehensive - 14 built-in catalog health checks
• Intent Optimized - COSMO-inspired shopper intent coverage for bullets

Installation

pip install amazon-catalog-cli

Or install from source:

git clone https://github.com/BWB03/amazon-catalog-cli.git
cd amazon-catalog-cli
pip install -e .

Quick Start

For Humans

# Run all catalog checks
catalog scan my-catalog.xlsx

# Detailed results
catalog scan my-catalog.xlsx --show-details

# Run specific check
catalog check intent-bullets my-catalog.xlsx

# Audit titles for Amazon's 75-character mobile title update
catalog check mobile-title-readiness my-catalog.xlsx

# List available queries
catalog list-queries

For AI Agents

# JSON output with field mask and limit
catalog scan my-catalog.xlsx --format json --fields sku,severity,details --limit 20

# Title rewrite triage for agents
catalog check mobile-title-readiness my-catalog.xlsx --format json \
  --fields sku,details,title_char_count,mobile_visible_title,overflow_title,all_significant_terms

# Structured JSON input
catalog scan --json '{"file": "my-catalog.xlsx", "queries": ["missing-attributes"], "limit": 10}'

# Piped input
echo '{"file": "my-catalog.xlsx"}' | catalog scan --stdin --format json

# NDJSON streaming for large results
catalog scan my-catalog.xlsx --format ndjson

# Schema introspection (discover queries, params, response shapes)
catalog schema --format json

# Fetch live Seller Central listing JSON for an ASIN
CATALOG_SELLER_CENTRAL_COOKIE='session-id=...' catalog listing fetch B000TEST01 --format json

# Compare live Seller Central JSON with a CLR row
catalog listing diff B000TEST01 my-catalog.xlsx --sku SKU-123 --format json

MCP Server (for Claude Desktop, CLR Pro, etc.)

# Start MCP server
catalog mcp

Add to Claude Desktop config:

{
  "mcpServers": {
    "catalog": {
      "command": "catalog",
      "args": ["mcp"]
    }
  }
}

MCP tools: catalog_scan, catalog_scan_summary, catalog_check, catalog_seller_listing_fetch, catalog_seller_listing_diff, catalog_list_queries, catalog_schema

Available Queries

Attribute Audits

• missing-attributes - Find mandatory attributes missing from listings
• missing-any-attributes - Find all missing attributes (required + conditional)
• new-attributes - Find unused template fields that might add value

Content Quality

• intent-bullets - Score bullet points against shopper intent coverage
• bullet-prohibited-content - Find bullet points with prohibited chars, emojis, claims, or placeholders
• bullet-formatting - Check bullet formatting (capitalization, length, punctuation)
• bullet-awareness - Soft violations in bullets (excessive caps, problematic chars)
• mobile-title-readiness - Find titles over 75 characters and prepare rewrite inputs
• long-titles - Find titles exceeding 200 characters
• title-prohibited-chars - Find titles with prohibited characters
• prohibited-chars - Find prohibited characters in title/brand

Catalog Structure

• product-type-mismatch - Find mismatched product types and item keywords
• missing-variations - Find products that should be variations but aren't

CLI Commands

catalog scan

Run all queries on a CLR file.

catalog scan <clr-file> [OPTIONS]

Options:
  --format [terminal|json|csv|ndjson]  Output format (default: terminal)
  --output PATH                        Output file path
  --show-details / --no-details        Show detailed results
  --include-fbm-duplicates             Legacy: include repeated exact-SKU rows
  --json TEXT                          JSON request body
  --stdin                              Read JSON request from stdin
  --queries TEXT                       Comma-separated query names
  --fields TEXT                        Comma-separated field mask
  --limit INTEGER                      Max issues to return
  --offset INTEGER                     Skip first N issues

catalog check

Run a specific query.

catalog check <query-name> <clr-file> [OPTIONS]

Options:
  --format [terminal|json|csv|ndjson]  Output format (default: terminal)
  --output PATH                        Output file path
  --show-details / --no-details        Show detailed results
  --json TEXT                          JSON request body
  --stdin                              Read JSON request from stdin
  --fields TEXT                        Comma-separated field mask
  --limit INTEGER                      Max issues to return
  --offset INTEGER                     Skip first N issues

catalog listing fetch

Fetch Amazon's live Seller Central listing JSON for an ASIN.

Requires a logged-in Seller Central cookie from your own browser session. Pass it with --cookie, --cookie-file, or the CATALOG_SELLER_CENTRAL_COOKIE environment variable.

catalog listing fetch <asin> [OPTIONS]

Options:
  --format [terminal|json]  Output format (default: terminal)
  --output PATH             Output file path
  --cookie TEXT             Seller Central Cookie header value
  --cookie-file PATH        File containing the Cookie header value
  --timeout FLOAT           HTTP timeout in seconds
  --json TEXT               JSON request body
  --stdin                   Read JSON request from stdin

catalog listing diff

Compare Amazon's live Seller Central listing JSON with a matching CLR row.

Rows match by --sku when provided. Otherwise Catalog CLI looks for Product Id Type = ASIN and Product Id = <asin> in the CLR.

catalog listing diff <asin> <clr-file> [OPTIONS]

Options:
  --sku TEXT                Optional SKU to match in the CLR
  --format [terminal|json]  Output format (default: terminal)
  --output PATH             Output file path
  --cookie TEXT             Seller Central Cookie header value
  --cookie-file PATH        File containing the Cookie header value
  --timeout FLOAT           HTTP timeout in seconds
  --json TEXT               JSON request body
  --stdin                   Read JSON request from stdin

catalog schema

Show schema for queries, params, and response shapes.

catalog schema [query-name] [OPTIONS]

Options:
  --format [terminal|json]  Output format

catalog list-queries

List available queries.

catalog list-queries [OPTIONS]

Options:
  --format [terminal|json]  Output format

catalog mcp

Start the MCP server (stdio transport).

catalog mcp

catalog setup-claude

Configure Claude Code to use Catalog CLI as an MCP tool server.

# Free (local) — data stays on your machine
catalog setup-claude

# Pro (hosted API) — persistent storage, unlimited scans
catalog setup-claude --pro --api-key YOUR_KEY

# Per-project instead of global
catalog setup-claude --project

After setup, restart Claude Code and try: "Scan my-catalog.xlsx and tell me the biggest issues"

Example JSON Output