ToolSchema Forge MCP Server

by workers-toolschemaforge-toolschema-forge Your server? Claim it

answering

ToolSchema Forge is answering right now. Last checked 3 min ago. It exposes 5 tools.

Convert, lint and generate LLM tool schemas for OpenAI, Anthropic, Gemini and MCP

Uptime history 9 days of history · worst day 99%

9 days agonow

100.0%

Uptime 24h

92 of 92 checks

Tools

read from the server

150 ms

Response time

average over 24h

open, no key

Access

streamable-http

ToolSchema Forge missed one check this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 3 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add toolschema-forge --transport http https://toolschema-forge.toolschemaforge.workers.dev/mcp

Settings → Connectors → Add custom connector, then paste this address

https://toolschema-forge.toolschemaforge.workers.dev/mcp

~/.codex/config.toml

[mcp_servers.toolschema-forge]
url = "https://toolschema-forge.toolschemaforge.workers.dev/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "toolschema-forge": {
      "url": "https://toolschema-forge.toolschemaforge.workers.dev/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "toolschema-forge": {
      "type": "http",
      "url": "https://toolschema-forge.toolschemaforge.workers.dev/mcp"
    }
  }
}

Available tools 5

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

batch

batch_convert_tool_schemas

Convert up to 50 tool definitions at once to the chosen formats, with per-tool issues and ready-to-use bundles. Free: 5 calls/hour per IP with arguments up to 8 KB; then $0.05 USDC per call via x402.

convert

convert_tool_schema

Convert one LLM tool/function definition between OpenAI, OpenAI strict mode, Anthropic, Gemini, MCP and plain JSON Schema. The input format is auto-detected. Every change is reported as an issue with a JSON pointer. Free: 5 calls/hour per IP with arguments up to 8 KB; then $0.01 USDC per call via x402.

lint

lint_tool_schema

Check one LLM tool definition against each provider's schema rules (OpenAI strict, Anthropic, Gemini, MCP) and report errors and warnings with fixes. Free: 5 calls/hour per IP with arguments up to 8 KB; then $0.005 USDC per call via x402.

mcp

mcp_manifest

Generate an MCP server manifest (tools with inputSchema, titles, annotations, HTTP bindings) and a TypeScript stdio server stub from an OpenAPI spec or a list of tools. Free: 5 calls/hour per IP with arguments up to 8 KB; then $0.15 USDC per call via x402.

openapi

openapi_to_tools

Turn an OpenAPI 3.x or Swagger 2.0 spec (JSON object) into LLM tool definitions in the chosen format, one tool per operation. Free: 5 calls/hour per IP with arguments up to 8 KB; then $0.02 USDC per call via x402.

Endpoints

URL	Transport	State	Latency	Checked
https://toolschema-forge.toolschemaforge.workers.dev/mcp	streamable-http	answering	123 ms	3 min ago

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ToolSchema Forge — questions

Answers built from our own checks of this server.

What can ToolSchema Forge do?

It exposes 5 tools, read directly from the server on our last check. Among them: batch_convert_tool_schemas, convert_tool_schema, lint_tool_schema, mcp_manifest, openapi_to_tools. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is ToolSchema Forge working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 150 ms. The bar chart above shows every period we have measured.

How do I connect ToolSchema Forge?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does ToolSchema Forge need an API key?

No. ToolSchema Forge completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 5 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is ToolSchema Forge?

It answers our handshake in 150 ms on average, which is faster than 83% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.