Counterfoil

com.einvoicegoblin/counterfoilVersion 0.45.0

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

Status

Responds79 msNov 14, 2026, 13:55 UTCAnswered our handshake without sign-in.

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Last checked: Nov 14, 2026, 13:55 UTC
Latency: 79 ms
Remotes responding: 1 of 1
Sign-in: No sign-in
Hosting: EU hosting detected (detected, not a legal statement)
Registry data as of: Nov 14, 2026, 22:14 UTC

Data from the official MCP Registry, checked by run.zero. How we check

Connect

Streamable HTTP

https://einvoicegoblin.com/mcpResponds79 msNov 14, 2026, 13:55 UTC

No sign-in

Claude Code

claude mcp add --transport http counterfoil https://einvoicegoblin.com/mcp

Claude Desktop and claude.ai

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Settings > Connectors > Add custom connector
Name: counterfoil
Remote MCP server URL: https://einvoicegoblin.com/mcp

Cursor

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

VS Code

code --add-mcp '{"name":"counterfoil","type":"http","url":"https://einvoicegoblin.com/mcp"}'

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Tools

4 tools

Tools of Counterfoil
	Description		Read-only	Idempotent	Open world
`check_invoice`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.	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.	No	Yes	Yes	No
`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.	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.	No	Yes	Yes	No
`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.	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.	No	Yes	Yes	No
`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.	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.	No	Yes	Yes	No

Details

Registry status: Active
Published: Oct 19, 2026
Updated: Oct 19, 2026
Website: https://einvoicegoblin.com/⁠ (opens in a new tab)
Repository: Not given
Categories (suggested): Invoicing and accountingSuggested categories are assigned automatically from the registry text and may be wrong. Verified operators can correct them.
GDPR: Not declared

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