Counterfoil

com.einvoicegoblinPublished by einvoicegoblin.comOfficial publisherv0.45.0Updated Oct 25, 2026

Read stored EU e-invoice rule notes and the invoice field map. Not a validator.

VerifiedStreamable HTTPWeb executableBusiness & Commerce

Overview

Counterfoil's hosted MCP server (einvoicegoblin.com), published by einvoicegoblin.com; no sign-in required; Streamable HTTP; 4 tools.

No AI overview yet: these facts come from the registry entry and the server itself.

Publisher
einvoicegoblin.com
Endpoint
einvoicegoblin.com
Last checked

Installation

In SourceWeft

  1. Open Counterfoil in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/com.einvoicegoblin%2Fcounterfoil/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "counterfoil": {
      "type": "http",
      "url": "https://einvoicegoblin.com/mcp"
    }
  }
}

Tools

4

get_rule

Get rule

Read one stored EU e-invoice rule by id. Returns the stored statement, context, test, plain reading, fix, and source URL. Does not check an invoice.

Parametersidrequired

search_rules

Search rules

Find stored rules by words, a BT code, or a group. Each hit returns the stored statement, plain reading, fix, and source URL. At most 100 hits. Does not check an invoice.

Parametersbtgroupquery

explain_error

Explain error

Read a stored rule named in a rule id or a validator message. Returns the stored statement, plain reading, fix, and source URL when a stored rule matches. Does not check an invoice.

Parameterstextrequired

check_invoice

Check invoice slice

Read a UBL Invoice XML slice of at most 60000 characters. Returns the business terms that slice writes, the field-map gaps, and one stored note when BR-DE-15 finds no non-empty buyer reference (BT-10). evaluation is false: no Schematron runs. The result does not say the invoice passed. The XML is not stored. A larger file is the raw body of POST /v1/invoices/check, up to 1048576 bytes.

Parametersxmlrequired

Version history

1
  1. v0.45.0LatestOct 19, 2026

Score

72% 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 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • 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.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.