McpStamp Dunning Letters is a remote MCP server that gives an AI agent 11 tools, among them aging_summary, chase_today, invoice_delete. It answers at https://mcp.zovo.one/mcp/dunning-letters over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 12 September 2026; the last check, on 7 November 2026, succeeded.
Chase unpaid invoices: reminder, firm reminder and final notice letters, and a daily chase list.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
aging_summary | The aging summary across every unpaid invoice: current, 1-30, 31-60, 61-90 and 91+ day buckets, with counts and totals in integer cents, per currency. This is the answer to "how much am I owed, and how stale is it". Inputs: on |
chase_today | The day's chase list: which invoices cross an escalation threshold today, which letter to send each and how long it has been waiting, what falls due in the next few days, and which invoices have had all three letters and need a decision out Inputs: on, within_days |
invoice_delete | Delete an invoice entered wrongly, by id or reference: the record, its payments and its letter history. The id is not reissued, so a gap in the DUN series is the record that a deletion happened. Inputs: invoice |
invoice_register | Start chasing an unpaid invoice: register the client, the invoice reference, the amount in integer cents, the currency and the due date, and get the three-letter escalation schedule (reminder 1, reminder 2, final notice) with the date each Inputs: client, reference, amount_minor, currency, due, issued |
invoice_status | One chased invoice in full: what was billed, what has been paid and what is still owed, every letter sent with its date, the escalation schedule with each stage's state, and what happens next and when. Inputs: invoice, on |
letter_render | Chase an unpaid invoice: generate the letter for the current stage of the ladder -- reminder 1 (polite), reminder 2 (firm, with the late fees note) or the final notice (before-action wording) -- as Markdown or as self-contained printable HT Inputs: invoice, format, stage, on |
letter_sent | Record that a chase letter was actually sent, with its date, so the ladder advances to the next stage. Letters go out in order: reminder 2 cannot be recorded before reminder 1. Returns what is due next and when. Inputs: invoice, stage, sent |
license_activate | Turn Pro on for this connection with key, an MCPL1.<payload>.<signature> issued at checkout for this server or the bundle. Data under your token stays; a wrong or expired key changes nothing. license_status confirms it. Inputs: key |
license_status | Report this endpoint's licence state for your token as JSON: the product, the tier free or pro, why it is not Pro, and the checkout URL. Call it to explain a free-tier refusal. No arguments, nothing changes. |
overdue_list | Every unpaid invoice past its due date: how many days late, what is still owed, which letters have gone out, and what is due next and when. Sorted by days late, worst first. Inputs: on, limit |
payment_record | Record money received against a chased invoice, in whole MINOR units: a part payment lowers what is still chased, a payment that covers the balance closes the ladder and frees the free-tier slot. Returns the outstanding amount. Inputs: invoice, amount_minor, date, note |
Every block below points at https://mcp.zovo.one/mcp/dunning-letters. Pick your client and copy.
claude mcp add --transport http mcpstamp-dunning-letters https://mcp.zovo.one/mcp/dunning-letters
{
"mcpServers": {
"mcpstamp-dunning-letters": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://mcp.zovo.one/mcp/dunning-letters"]
}
}
}{
"mcpServers": {
"mcpstamp-dunning-letters": {
"url": "https://mcp.zovo.one/mcp/dunning-letters"
}
}
}{
"servers": {
"mcpstamp-dunning-letters": {
"type": "http",
"url": "https://mcp.zovo.one/mcp/dunning-letters"
}
}
}{
"context_servers": {
"mcpstamp-dunning-letters": {
"url": "https://mcp.zovo.one/mcp/dunning-letters"
}
}
}{
"mcpServers": {
"mcpstamp-dunning-letters": {
"serverUrl": "https://mcp.zovo.one/mcp/dunning-letters"
}
}
}{
"mcpServers": {
"mcpstamp-dunning-letters": {
"url": "https://mcp.zovo.one/mcp/dunning-letters"
}
}
}name: McpStamp Dunning Letters
version: 0.0.1
schema: v1
mcpServers:
- name: McpStamp Dunning Letters
type: streamable-http
url: https://mcp.zovo.one/mcp/dunning-letters{
"mcpServers": {
"mcpstamp-dunning-letters": {
"httpUrl": "https://mcp.zovo.one/mcp/dunning-letters"
}
}
}{
"mcpServers": {
"mcpstamp-dunning-letters": {
"type": "http",
"url": "https://mcp.zovo.one/mcp/dunning-letters"
}
}
}{
"mcpServers": {
"mcpstamp-dunning-letters": {
"url": "https://mcp.zovo.one/mcp/dunning-letters"
}
}
}goose://extension?url=https%3A%2F%2Fmcp.zovo.one%2Fmcp%2Fdunning-letters&type=streamable_http&id=mcpstamp-dunning-letters&name=McpStamp%20Dunning%20Letters
It answered our last check on 7 November 2026 in 80 ms. Over 6 checks since 12 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
11, as returned by the server's own tools/list on 24 September 2026: aging_summary, chase_today, invoice_delete, invoice_register, invoice_status, letter_render, letter_sent, license_activate, and 3 more.
It answered our last check on 7 November 2026 in 80 ms. Over 6 checks since 12 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://mcp.zovo.one/mcp/dunning-letters. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: io.github.theluckystrike. Endpoint host: mcp.zovo.one. ARD identifier: urn:air:io.github.theluckystrike:mcp:dunning-letters.
First indexed 12 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.