Postbye
Cancel subscriptions: real cancellation letters & addresses for 10,000+ companies.
Sollte ich dies verwenden
Qualität und Sicherheit
Befunde (3)
- HIGHTool poisoning patterns detected
- MEDIUMTool 'get_cancellation_letter' description contains placeholder textin get_cancellation_letter
- INFOTool description contains placeholder or incomplete textin get_cancellation_letter
Basierend auf einer automatisierten Analyse der Tool-Definitionen und der Einhaltung des Protokolls.
Kontextkosten
Dies ist die ungefähre Anzahl der Tokens, die jedes Mal verbraucht werden, wenn die Tools des Servers in den Kontext eines Modells geladen werden. Höhere Werte verringern die Aufmerksamkeit, die für andere Aufgaben verfügbar ist.
Installieren
Installation mit einem Klick
Fügen Sie dies Ihrer Datei `claude_desktop_config.json` hinzu:
{
"mcpServers": {
"postbye": {
"url": "https://postbye.com/mcp"
}
}
}Remote-Endpunkte
https://postbye.com/mcpstreamable-httpWas es kann
Tool-Inventar
Tools (4)
🟢search_companies(query, limit)
Find companies by name (for example "netflix" or "planet fitness") among the subscriptions and memberships Postbye has a cancellation guide for. Returns each match's slug, category, how the company takes cancellations and the guide URL. Use the slug with get_cancellation_guide.
Eingabe-Schema
{
"type": "object",
"properties": {
"query": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "Company or service name, or part of it."
},
"limit": {
"type": "integer",
"minimum": 1,
"maximum": 10,
"default": 5,
"description": "Maximum number of matches (1 to 10)."
}
},
"required": [
"query"
],
"additionalProperties": false
}🟢get_cancellation_guide(slug)
How to cancel one company's subscription or membership: how it takes cancellations, the notice period, the traps to check first, billing-partner notes, sources, when the facts were verified, the mailing address(es) on file and the guide and address page URLs. Accepts a company slug from search_companies (merged duplicate slugs resolve to the current one).
Eingabe-Schema
{
"type": "object",
"properties": {
"slug": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "Company slug, for example \"netflix\"."
}
},
"required": [
"slug"
],
"additionalProperties": false
}🟢get_cancellation_letter(slug, customer_name, account_number)
A plain-text cancellation letter for one company, built from the same template as Postbye's free letter tool, plus where to send it. Fields not supplied stay as [bracketed placeholders] to fill in. Nothing is stored.
Eingabe-Schema
{
"type": "object",
"properties": {
"slug": {
"type": "string",
"minLength": 1,
"maxLength": 100,
"description": "Company slug from search_companies."
},
"customer_name": {
"type": "string",
"maxLength": 100,
"description": "Your full name as it appears on the account (optional)."
},
"account_number": {
"type": "string",
"maxLength": 64,
"description": "Account, membership or reference number (optional)."
}
},
"required": [
"slug"
],
"additionalProperties": false
}🟢list_categories
The category hubs of the cancellation guides (streaming, gyms, phone and internet, insurance and more) with the number of guides in each and the hub URL.
Eingabe-Schema
{
"type": "object",
"properties": {},
"additionalProperties": false
}Community
Nachweis