Cancel subscriptions: real cancellation letters & addresses for 10,000+ companies.
Connect Remote server
claude mcp add --transport http postbye https://postbye.com/mcp
{
"mcpServers": {
"postbye": {
"url": "https://postbye.com/mcp"
}
}
}
{
"servers": {
"postbye": {
"type": "http",
"url": "https://postbye.com/mcp"
}
}
}
Settings > Connectors > Add custom connector
URL: https://postbye.com/mcp
Tools 4 found in our last check
search_companiesFind 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.
get_cancellation_guideHow 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 s…
get_cancellation_letterA 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.
list_categoriesThe 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.
Details
| Endpoint | https://postbye.com/mcp (Streamable HTTP) |
| First published | 27 Oct 2026 |
| Last updated | 27 Oct 2026 |
| Registry name | com.postbye/postbye |
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