MCP server

ISBN digit shape

io.github.sadri-dridi/isbn-shape

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

ISBN digit shape

Source

At a glance

Type

MCP server

Publisher

Not verified

Status

Working at last check

Tools

31

Token cost

About 9,806 tokens per request

Sets up in

Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok

Last checked

26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to CursorAdd to VS CodeVS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http isbn-shape https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/isbn-shape/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.isbn-shape]
url = "https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/isbn-shape/mcp"

Gemini CLI

{"mcpServers":{"isbn-shape":{"httpUrl":"https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/isbn-shape/mcp"}}}

Cursor

{"mcpServers":{"isbn-shape":{"url":"https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/isbn-shape/mcp"}}}

VS Code

{"servers":{"isbn-shape":{"type":"http","url":"https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/isbn-shape/mcp"}}}

Antigravity

agy mcp add isbn-shape https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/isbn-shape/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"isbn-shape","server_url":"https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/isbn-shape/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"isbn-shape","server_url":"https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/isbn-shape/mcp"}

Tools

• isbn-shape ~300 tokens
  ISBN digit shape

Browse

• GitHub tools
• GitHub and code hosting

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• Qiniso
  Deterministic fact verification for AI agents — checksums & curated data, not guesses.
• Isbn
  ISBN validation & conversion MCP.
• CheckDigit
  Offline check-digit validation for IBAN, BIC, EU VAT, GTIN/EAN/UPC and ISBN. Format check only.
• Check Digit Validator
  Validates IBAN/ISBN/EAN/Luhn checksums and finds the one wrong digit
• Openlibrary
  Search books and authors, fetch editions, browse subjects, and resolve cover images.

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