ThumbnailCreator

ai.thumbnailcreatorPublished by thumbnailcreator.aiOfficial publisherv1.0.0Updated Oct 24, 2026

AI YouTube thumbnails from GPT Image, Nano Banana, FLUX and more, side by side. Pay per image.

VerifiedStreamable HTTPWeb executableMedia & DesignAI & ML

Overview

AI-generated overview

Remote MCP server that lets an assistant generate AI YouTube thumbnails from several image models, compare results, and track per-image spending.

What you can do
List available thumbnail image models with their price per image in USD and check account credit balance and in-flight spend for the key's account. Generate thumbnail images from a prompt with one or more models, up to 8 images per call, waiting for results and returning image URLs valid for one hour. Look up a generation by id to get its status and fresh image URLs.
When to use it
Useful when you want an assistant to draft YouTube thumbnail options from a text prompt across models such as GPT Image, Nano Banana or FLUX, compare them side by side, and keep an eye on credit usage before and after generating.
Requirements
A remote endpoint at thumbnailcreator.ai over streamable HTTP. A bearer token is required in the Authorization header, obtained from the provider's site under the account menu's agent keys section. No local runtime or environment variables are declared.
Before you install
The Authorization bearer token is a secret and grants access to the account's credits. Generation is billed per image to the API key's account, so calls spend real money; check balance and prices first. Returned image URLs expire after one hour, so save images promptly. Prompts and generation requests are sent to the provider.

Installation

In SourceWeft

  1. Open ThumbnailCreator in the dashboard and add it to a workspace.
  2. Connect Authorization token credentials. They are stored privately and never shown on public pages.
  3. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/ai.thumbnailcreator%2Fthumbnails/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "thumbnailcreator": {
      "type": "http",
      "url": "https://thumbnailcreator.ai/api/mcp",
      "headers": {
        "Authorization": "Bearer <YOUR_TOKEN>"
      }
    }
  }
}

Tools

4

list_models

List image models

Lists available thumbnail image models with the price per image in USD.

Takes no parameters.

generate_thumbnails

Generate thumbnails

Generates thumbnail images from a prompt with one or more models (up to 8 images per call). Waits for results and returns image URLs valid for one hour. Billed per image to the API key's account.

Parametersnformatmodelspromptrequired

get_generation

Get a generation

Returns the status and fresh image URLs for a generation id.

Parametersidrequired

account_usage

Account usage

Shows the credit balance and in-flight spend for the API key's account.

Takes no parameters.

Version history

1
  1. v1.0.0LatestSep 27, 2026

Score

83% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts
  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.