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Toolbox

MCP server · hosted · v1.0.0 · com.allthepossibles/toolbox
Online · tested 2h agoNEW · 3h agoSeen in the registry 2h ago

Small tools for agent builders: AI-writing tells, tools/list token cost, CLAUDE.md lint, and more.

Website ↗How to connect ↓

What it does

Toolbox is an MCP server, a connector that lets an AI assistant use it as a tool. It is hosted: an assistant connects to it over the internet, nothing to install.

No capability identified yet from its description.

Facts come from the Official MCP Registry, as declared by the publisher. Capabilities are matched automatically (low confidence) and are not a test of the tool.

At a glance

Hosted (remote)YES
Local installNO
Version1.0.0
PriceNot in the registry
First seen19 Oct 2026
Last checked2h ago

How to connect

As declared in the Official MCP Registry · hosted endpoint tested by Electra Index 2h ago (live check)

Hosted endpoint

  • https://toolbox.allthepossibles.com/mcp streamable-http

In Claude Code: claude mcp add --transport http toolbox https://toolbox.allthepossibles.com/mcp

MCP settings (Claude Desktop, Cursor and other MCP clients)

{
  "mcpServers": {
    "toolbox": {
      "url": "https://toolbox.allthepossibles.com/mcp"
    }
  }
}

Live check

Electra Index connected to the hosted endpoint 2h ago

ONLINE Toolbox answered an MCP connection on 19 Oct 2026 and introduced itself as toolbox 0.1.0 (MCP protocol 2025-06-18).

5 tools offered to AI assistants

  • check_tells · Check text for AI-writing tells (em-dashes, 'not just X but Y', rule-of-three lists, stock vocabulary like delve or seamlessly, hedge words, smart quotes, hidden Unicode) and return a score, each tell with its position, and a cleaned copy.
  • manifest_cost · Estimate what an MCP server's tools/list costs in tokens on every session start, per tool, with the three most expensive tools and flags for oversized descriptions, base64 blobs and echoed schemas. Pass a live Streamable HTTP endpoint or a
  • lint_agent_md · Lint a CLAUDE.md, AGENTS.md or MEMORY.md: line count against Claude Code's 200-line memory index cap, estimated tokens, duplicate lines, contradicting rules, leftover TODO markers, hidden characters, empty headings.
  • mcp_install_snippets · Generate install snippets for an MCP endpoint (Claude Code, Claude Desktop, Cursor, Codex, VS Code, curl) and probe the endpoint once to confirm it answers initialize and tools/list.
  • check_ai_crawlers · Read a site's robots.txt and report which AI crawlers (GPTBot, ClaudeBot, Google-Extended, PerplexityBot, CCBot, Bytespider and more) are allowed, blocked or partially blocked; check for llms.txt and draft one from the site's metadata and s

How we test: we open an MCP session and ask for the tool list, as an AI assistant would. We never run a tool and never send a key. Checked every few days. Method

Facts & evidence

Each fact shows where it was seen and when.
FactValueEvidenceSourceLast confirmed
Hosted endpointhttps://toolbox.allthepossibles.com/mcpDECLAREDSRC-001 Official MCP Registry2h ago
Local install (package)noDECLAREDSRC-001 Official MCP Registry2h ago
Remote access (hosted)yesDECLAREDSRC-001 Official MCP Registry2h ago
Websitehttps://toolbox.allthepossibles.comDECLAREDSRC-001 Official MCP Registry2h ago
Registry statusactiveDECLAREDSRC-001 Official MCP Registry2h ago
Version1.0.0DECLAREDSRC-001 Official MCP Registry2h ago
MCP serveryesDECLAREDSRC-001 Official MCP Registry2h ago

Change history

  • NEW19 Oct 2026
    first seen in the index

Is this page accurate?

Flag it and our robot re-checks the official source. Reports never change a score.

Questions about Toolbox

How do I connect Toolbox?

Use the hosted endpoint https://toolbox.allthepossibles.com/mcp in your assistant's MCP settings. The exact settings are in "How to connect" above, as declared in the Official MCP Registry.

What tools does Toolbox offer?

When Electra Index connected on 19 Oct 2026, it listed 5 tools: check_tells, manifest_cost, lint_agent_md, mcp_install_snippets, check_ai_crawlers. The full list is in "Live check" above.

Is Toolbox online?

Yes. Its hosted endpoint answered an MCP connection from Electra Index 2h ago.