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Cowork Finance Plugin

Connector Data & Analytics Solid

Accounting and finance assistant with 5 slash commands: /journal-entry, /reconciliation, /income-statement, /variance-analysis, /sox-testing. Works with spreadsheets and CSVs — no ERP connection required.

10,917 starsApache-2.0 (commercial OK)FreeNo code needed
Built and maintained by Anthropic, the makers of Claude.

Tested at top-tier by multiple independent reviewers. One reviewer reported reconciliation time dropped from 2h40m to 31 minutes. Works by dropping CSV exports into your Cowork folder — Claude reads across multiple files simultaneously.

Controllers, accountants, and finance teams doing month-end close, variance analysis, or audit prep. Works with any CSV/Excel export — ERP integration is optional.

Claude Code Claude Cowork Claude Chat

https://github.com/anthropics/knowledge-work-plugins

By Anthropic

How to Get It

Option 1: Claude Desktop AppOpen the Customize panel in the sidebar → browse connectors → search and add. Works in Claude Code, Claude Cowork, and Claude Chat.
Option 2: Paste into Claude CodeCopy the command below and paste it into a Claude Code conversation. Claude will run it for you.
Command
claude plugin install finance@knowledge-work-plugins

Tip: Paste this into a Claude Code conversation. Verify command matches your Claude Code version.

PrerequisitesClaude Cowork (Pro/Max/Team/Enterprise). Snowflake, Databricks, or BigQuery recommended.Time to functional~30 min (data warehouse connection)CostFree — Requires Claude Pro ($20/mo) or higher

Trust Signals Source Reviewed

Stars10,917Contributors16Last updated2026-04-04LicenseApache-2.0 (OK for commercial use)Known CVEsNone found

Data & Access

Data processingProcessed by Anthropic (the makers of Claude)

Reviewer notes

Source Reviewed review. These are observations, not a security certification.

RE-EVALUATED: Original C rating was based on incorrect assumption that ERP connectors were required. Plugin works with CSV/Excel files. Rated top-tier by 2 independent reviewers (Gradually.ai, Medium). 5 commands, 6 skills. CAUTION: WSP benchmark found Claude hallucinated financial data. Always verify against source documents.

2026-04-02: REAL USER DATA: Rated top-tier by Gradually.ai (17 plugins reviewed) and Medium reviewer. Finance plugin has 5 commands (/journal-entry, /reconciliation, /income-statement, /variance-analysis, /sox-testing) and 6 skills. Works with CSV/Excel files dropped in Cowork folder — NO ERP required. ERP connectors (NetSuite, SAP, QuickBooks, Xero) are listed in CONNECTORS.md but NO MCP servers exist for them yet. Cross-app Excel-to-PowerPoint workflow praised as standout feature. CAUTION: Wall Street Prep benchmark found Claude hallucinated financial data — subtly wrong line items that summed correctly. Always verify numbers against source documents.

2026-03-29: Connectors: Snowflake, Databricks, BigQuery, Slack, Microsoft 365. Also see financial-services-plugins for investment/banking use cases: https://github.com/anthropics/financial-services-plugins Official repo: https://github.com/anthropics/knowledge-work-plugins/tree/main/finance

2026-03-29: SECURITY FINDING (JJ Englert, Mar 2026): Cowork connectors are scoped at the Anthropic account level, NOT the workspace level. A connector added in one Cowork workspace is accessible in ALL workspaces under the same Anthropic account. This means: (1) connectors with sensitive access (email, calendar, CRM) bleed across all projects/workspaces; (2) multi-tenant setups sharing an Anthropic account are NOT isolated at the connector level; (3) evaluate connector blast radius across the full account, not just the workspace being configured. Source: https://github.com/JJenglert1/getting-started-with-claude-cowork

How to evaluate tools before deploying →

Data shown here comes from public APIs and automated scanning. Reviewer notes reflect one person's experience. This is not a security certification or legal recommendation. Always evaluate tools according to your own organization's policies.

Evaluation

Ease of Use
4/5
Versatility
3/5
Reliability
4/5
Security
4/5
Overall score3.75 / 5.00 SolidEvaluatedApr 2026
RE-EVALUATED: Original C rating was based on incorrect assumption that ERP connectors were required. Plugin works with CSV/Excel files. Rated top-tier by 2 independent reviewers (Gradually.ai, Medium). 5 commands, 6 skills. CAUTION: WSP benchmark found Claude hallucinated financial data. Always verify against source documents.

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