Invoice
com.yaktoolPublished by yaktool.comv0.2.0Updated Oct 24, 2026
Check invoice mandatory fields, validate a draft before issuing, and look up EN 16931 code lists.
Overview
Local MCP server that lets an assistant check invoice mandatory fields, validate a draft before issuing, and look up EN 16931 code lists.
- What you can do
- Check mandatory fields on an invoice and flag what is missing.
- Validate a draft invoice before it is issued.
- Look up EN 16931 code lists used in electronic invoicing.
- When to use it
- Useful when preparing or reviewing electronic invoices, especially EN 16931 / e-invoicing drafts, and you want an assistant to catch missing mandatory fields or wrong code-list values before issuing.
- Requirements
- Runs as a local process on the user's machine via the npm package yaktool-invoice-mcp over stdio; desktop only. No authentication, environment variables or headers are declared.
Installation
In SourceWeft
- Open Invoice in the dashboard and add it to a workspace.
- Enable the server for the chats that should use its tools.
Desktop only via STDIO. STDIO servers start a local process, so they need the SourceWeft desktop host.
Tools
0Version history
1- v0.2.0LatestSep 16, 2026
Score
15% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
- Reached in the last 30 days25 pts
Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.
- Auth declared10 pts
Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.
- Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
- DescriptionRequired15 pts
- Logo10 pts
Publish an icon in the registry entry.
- Documentation15 pts
Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.
- License10 pts
Declare a license in the repository or the registry entry.