KeyHalve - verify sealed documents is an MCP server with 3 tools an agent can call, among them keyhalve_explain, keyhalve_status, keyhalve_verify. It answers at https://mcp.keyhalve.com/mcp over streamable HTTP, and it listed its tools to an anonymous client, so no sign-in was needed for that. Our probes reached it 10 of 10 times since 5 September 2026; the last check, on 18 October 2026, succeeded.
Free, no-account verification of KeyHalve-sealed documents. Read-only; never receives keys.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
keyhalve_explain | Plain-language explanation of what a KeyHalve verification verdict means and why it can be trusted (blind rail, three-share custody, commitments, revocation). Optionally focused on one topic. Inputs: topic |
keyhalve_status | Live status of a KeyHalve-sealed document by id: active, revoked (with reason/time), or outside its validity window. Lighter than keyhalve_verify — status only, no integrity or rail checks. Use for "is this still good right now?" Inputs: document_id |
keyhalve_verify | Verify a KeyHalve-sealed document. Accepts a verify URL, the raw text of a KeyHalve QR code, or a document id (vp_…, kh_…, cb_…). Returns the cryptographic verdict: whether the seal exists, its live status (active/revoked/expired), cipherte Inputs: input |
Every block below points at https://mcp.keyhalve.com/mcp. Pick your client and copy.
claude mcp add --transport http keyhalve-verify-sealed-documents https://mcp.keyhalve.com/mcp
{
"mcpServers": {
"keyhalve-verify-sealed-documents": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://mcp.keyhalve.com/mcp"]
}
}
}{
"mcpServers": {
"keyhalve-verify-sealed-documents": {
"url": "https://mcp.keyhalve.com/mcp"
}
}
}{
"servers": {
"keyhalve-verify-sealed-documents": {
"type": "http",
"url": "https://mcp.keyhalve.com/mcp"
}
}
}{
"context_servers": {
"keyhalve-verify-sealed-documents": {
"url": "https://mcp.keyhalve.com/mcp"
}
}
}{
"mcpServers": {
"keyhalve-verify-sealed-documents": {
"serverUrl": "https://mcp.keyhalve.com/mcp"
}
}
}{
"mcpServers": {
"keyhalve-verify-sealed-documents": {
"url": "https://mcp.keyhalve.com/mcp"
}
}
}name: KeyHalve — verify sealed documents
version: 0.0.1
schema: v1
mcpServers:
- name: KeyHalve — verify sealed documents
type: streamable-http
url: https://mcp.keyhalve.com/mcp{
"mcpServers": {
"keyhalve-verify-sealed-documents": {
"httpUrl": "https://mcp.keyhalve.com/mcp"
}
}
}{
"mcpServers": {
"keyhalve-verify-sealed-documents": {
"type": "http",
"url": "https://mcp.keyhalve.com/mcp"
}
}
}{
"mcpServers": {
"keyhalve-verify-sealed-documents": {
"url": "https://mcp.keyhalve.com/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fmcp.keyhalve.com%2Fmcp&type=streamable_http&id=keyhalve-verify-sealed-documents&name=KeyHalve%20%C3%A2%E2%82%AC%E2%80%9D%20verify%20sealed%20documents
It answered our last check on 18 October 2026 in 118 ms. Over 10 checks since 5 September 2026 it answered 10. Status here comes from Neuronto's own probes, not from the publisher.
Yes. It is published by keyhalve.com and served from mcp.keyhalve.com, the vendor's own domain: https://mcp.keyhalve.com/mcp.
3, as returned by the server's own tools/list on 31 August 2026: keyhalve_explain, keyhalve_status, keyhalve_verify.
It answered our last check on 18 October 2026 in 118 ms. Over 10 checks since 5 September 2026 it answered 10.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://mcp.keyhalve.com/mcp. 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: com.keyhalve. Endpoint host: mcp.keyhalve.com. ARD identifier: urn:air:com.keyhalve:mcp:verify.
First indexed 31 August 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.