Who it is for
Course operators and training teams that issue credentials to groups of recipients.
Overview
Certifier is a platform for digital credentials. Through this app, certificates and badges can be created, managed, and verified from a chat session.
The example prompts point at two ordinary actions: issuing a credential to a named recipient from the most recent template, and building a new template for a specific cohort of a course. The record describes the platform as designed to handle credentials in volume rather than one at a time.
Course operators and training teams that issue credentials to groups of recipients.
Template creation and individual issuance are both reachable from the same conversation.
Availability
Certifier is listed in the ChatGPT apps directory only. Certifier sp. z o.o.. has no connector under the same domain in the Claude directory; 392 of the 3,150 products here are on both marketplaces, and this is not one of them.
ChatGPT apps are built on MCP, and the same server can back a Claude connector, so the absence is a distribution decision rather than a technical one.
ChatGPT listing
Nearby
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This is an independent catalogue entry compiled by Node8 from Certifier's public marketplace listing as it stood in August 2026. Listing facts come from the marketplaces; the comparisons against the rest of the directory and any live-endpoint measurements are Node8's. Node8 is not affiliated with Certifier sp. z o.o.., and inclusion here is not an endorsement.
Node8 builds MCP servers end to end: deciding which tools are worth exposing, the authentication and permission model, the review submissions, and the onboarding that gets them used. One server serves ChatGPT, Claude, and Microsoft Copilot.