Overview · MCP · REST · Claude · ChatGPT and OpenAI
Developers · ChatGPT and OpenAI
Piloxa in ChatGPT
Add the Piloxa plugin (published in ChatGPT’s plugin directory)
- Open Piloxa — Certified Mail in ChatGPT and connect it. No developer mode and no Piloxa account.
- In a chat, ask “Check this letter for Certified Mail” or “Send this certified with Piloxa.”
Or add it as a custom app (tested: paying customers arrive this way)
In a workspace that limits plugins, an admin can turn on developer mode and add https://www.piloxa.com.e2b4.com/mcp with no authentication.
REST for software that reads OpenAPI
https://www.piloxa.com.e2b4.com/openapi.json describes the same operations; the requests on the REST page are tested.
Not yet tested by us, so not described here
OpenAI’s Responses API remote MCP tool, the Agents SDK and Agentic Commerce checkout. We list an integration only once we have run it.
What no integration can do
- Mail or charge anything. Nothing is printed, mailed or charged until a person reviews the exact document, the recipient and the total, and approves and pays on the review page. An assistant can check, quote and prepare; it cannot send.
- Read a person’s past letters anonymously. Status answers only for letters prepared in the same session.
- Decide a legal deadline. A deadline is the person’s to state; Piloxa only notices that a letter mentions one.