Usero is an MCP server with 2 tools an agent can call, among them check_signup, start_signup. It answers at https://usero.io/mcp/oauth over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 6 of 6 times since 12 September 2026; the last check, on 24 October 2026, succeeded.
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Description as the publisher wrote it.
| Tool | What it does |
|---|---|
check_signup | Poll after start_signup. Returns { status: "pending" } until the user presses the button in the email, then { status: "ready", apiKey, setup } exactly once; the pollToken is dead after that. The setup field holds the exact config or command Inputs: pollToken |
start_signup | Start signup without leaving the agent. Ask for the user's email, do not invent one. Sends an email with a Review connection button; the user presses that button, then "Yes, connect" on the page that opens (opening the page alone does nothi Inputs: email, clientName |
Every block below points at https://usero.io/mcp/oauth. Pick your client and copy.
claude mcp add --transport http usero https://usero.io/mcp/oauth
{
"mcpServers": {
"usero": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://usero.io/mcp/oauth"]
}
}
}{
"mcpServers": {
"usero": {
"url": "https://usero.io/mcp/oauth"
}
}
}{
"servers": {
"usero": {
"type": "http",
"url": "https://usero.io/mcp/oauth"
}
}
}{
"context_servers": {
"usero": {
"url": "https://usero.io/mcp/oauth"
}
}
}{
"mcpServers": {
"usero": {
"serverUrl": "https://usero.io/mcp/oauth"
}
}
}{
"mcpServers": {
"usero": {
"url": "https://usero.io/mcp/oauth"
}
}
}name: Usero
version: 0.0.1
schema: v1
mcpServers:
- name: Usero
type: streamable-http
url: https://usero.io/mcp/oauth{
"mcpServers": {
"usero": {
"httpUrl": "https://usero.io/mcp/oauth"
}
}
}{
"mcpServers": {
"usero": {
"type": "http",
"url": "https://usero.io/mcp/oauth"
}
}
}{
"mcpServers": {
"usero": {
"url": "https://usero.io/mcp/oauth"
}
}
}goose://extension?url=https%3A%2F%2Fusero.io%2Fmcp%2Foauth&type=streamable_http&id=usero&name=Usero
It answered our last check on 24 October 2026 in 990 ms. Over 6 checks since 12 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
Yes. It is published by usero.io and served from usero.io, the vendor's own domain: https://usero.io/mcp/oauth.
2, as returned by the server's own tools/list on 22 September 2026: check_signup, start_signup.
It answered our last check on 24 October 2026 in 990 ms. Over 6 checks since 12 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://usero.io/mcp/oauth. The exact JSON is above, with the same setup for Claude Code, Claude Desktop, VS Code, Windsurf, Zed, Gemini CLI and the rest.
It listed its tools to an anonymous client, so reading the tool list needs no key. Individual tools can still ask for credentials in their own inputs.
Publisher: io.usero. Endpoint host: usero.io. ARD identifier: urn:air:io.usero:mcp:usero.
First indexed 10 September 2026. The tools are exactly what the server returned; nothing on this page
is inferred from its name. Ranking in Neuronto search is never for sale.