dropcoin-validation

EU compliance checks for AI agents: sanctions, company, VAT ID, IBAN, email.

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What it can do

    What data it sees

    Do you need an account

    No: the server works without sign-in

    EU compliance checks for AI agents: sanctions, company, VAT ID, IBAN, email. Pay per call.

    How to connect

    How to connect dropcoin-validation to Claude

    The server address to paste into Claude settings:

    https://validation-api.dropcoin.workers.dev/mcp

    1. Open Claude (claude.ai or the desktop app).
    2. Go to Settings → Connectors.
    3. Click Add custom connector.
    4. Paste the server address copied below into Remote MCP server URL and click Add.
    5. In a chat, click + → Connectors and switch the new connector on.

    Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

    Authorization

    After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

    How to connect dropcoin-validation to ChatGPT

    The server address to paste into ChatGPT settings:

    https://validation-api.dropcoin.workers.dev/mcp

    1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
    2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
    3. Open Settings → Connectors and click Create.
    4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
    5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
    6. In a new chat open + → Apps/Connectors and enable the connector.

    OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

    Authorization

    On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

    How to connect dropcoin-validation to Cursor

    The server address to paste into Cursor settings:

    https://validation-api.dropcoin.workers.dev/mcp

    Fastest: click Open in Cursor below and confirm the prompt.

    Manually:

    1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
    2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
    3. Save the file. The server appears in the MCP list; authorize it there if asked.

    Authorization

    If the service needs sign-in, an authorize button appears next to the server in the MCP list.

    Server tool list (6)

    Raw names from tools/list. Only developers need these.

    validate_vatid_formatFree EU VAT-ID FORMAT check (syntax only, no registry lookup), rate-limited per IP, no API key needed. For a live VIES registry check use the paid validate_vatid tool (5 credits).
    validate_emailValidate an email address: syntax, disposable-domain check, MX record via DNS-over-HTTPS. Returns a deliverability verdict. 2 credits, requires an API key.
    validate_vatidValidate an EU VAT ID against the live VIES registry (format check first — an invalid format still costs the full price, it never reaches VIES but you got an answer). 5 credits, requires an API key.
    validate_ibanValidate an IBAN (ISO 13616 check digits) incl. SEPA membership. 2 credits, requires an API key.
    screen_sanctionsScreen a person or company against the official EU, US (OFAC SDN) and UK (OFSI) sanctions lists. Fuzzy name matching with an auditable reason per hit — review every hit yourself; a clean result is not legal clearance and covers no PEP data. 15 credits, requires an API key.
    verify_companyVerify a business partner in one call: EU VAT registration (VIES), LEI register (GLEIF), IBAN checksum and country consistency — one verdict (pass|fail|inconclusive) with an auditable check log. Provide at least one of name, vatId, lei. Does not include commercial-register existence checks. 150 credits, requires an API key.