Your AI agent can now find AND call the tools it's missing

There are more than 10,000 MCP servers indexed across public registries right now. Your AI agent can use almost none of them — not because it can't, but because it has no idea they exist, and even when it finds one it can't use it without a human installing and wiring it up.

When Claude (or Cursor, or any MCP client) hits a task it has no tool for, the workflow today is: the human goes registry-crawling, compares half-documented servers, and hand-writes the config. The agent — the one that actually needed the tool — just waits.

I built ToolHail to close that loop. It's the discovery-and-execution layer for AI agents, and it's live.

Add it in one line

ToolHail is itself a remote MCP server. Point your agent at it:

claude mcp add --transport http toolhail https://mcp.toolhail.com/mcp

Now your agent has two tools:

find_mcp_server (free) — describe a task in plain language, get the best-matching MCP servers, ranked and deduplicated across registries, with paste-ready setup. Ranking is for usability, not just keywords: hosted remotes rank first (an agent can use them instantly), actively maintained servers rank higher, GitHub stars break ties.

call_tool (paid) — invoke a discovered tool without installing anything. ToolHail proxies the call, and the agent pays per use.

So the loop becomes: agent hits a gap → find_mcp_server → call_tool → keeps working. No human in the middle.

Why tool discovery is the next infrastructure layer

Agentic payments went mainstream this year — Stripe's ACP, Google's UCP, Mastercard's Agent Pay, Coinbase's x402 crossing 50M transactions. The rails for agents paying for things are built. What's missing is the layer that tells an agent what's worth paying for, and lets it use the thing on the spot. Discovery + execution is the front door of agentic commerce, and today that door is a pile of registry tabs open in a human's browser.

ToolHail is my take on that layer. Discovery is free; execution is metered so an agent can use it without anyone thinking about it.

Try it: .

Built solo, shipped fast, with Claude Code doing the heavy lifting.