Pcrzero is a remote MCP server that gives an AI agent 3 tools, among them get_keyset, issue_receipt, verify_receipt. It answers at https://mcp.pcrzero.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.
Issue signed receipts for AI agent actions; verify any receipt offline - free, no account (stdio).
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
get_keyset | Returns the current PCRZERO signing keyset — key ids, public halves, and each key's status. Public and unauthenticated: no API key, no cost, no account. This is the same document an outside party fetches to check a PCRZERO receipt without t |
issue_receipt | Adjudicates an attestation document against a policy and returns the verdict together with a signed receipt pair — the durable, independently checkable proof that this decision was made, by these keys, over this document. **Metered: every c Inputs: document, documents, policy_id, policy, nonce, receipt |
verify_receipt | Checks a PCRZERO receipt pair against the signing keyset: whether the signature holds, and whether the receipt says what it appears to say. **Free, with no API key and no account, and it stays free.** Offline by default — supply `keyset` an Inputs: receipt, keyset, conformance |
Every block below points at https://mcp.pcrzero.com/mcp. Pick your client and copy.
claude mcp add --transport http pcrzero https://mcp.pcrzero.com/mcp
{
"mcpServers": {
"pcrzero": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://mcp.pcrzero.com/mcp"]
}
}
}{
"mcpServers": {
"pcrzero": {
"url": "https://mcp.pcrzero.com/mcp"
}
}
}{
"servers": {
"pcrzero": {
"type": "http",
"url": "https://mcp.pcrzero.com/mcp"
}
}
}{
"context_servers": {
"pcrzero": {
"url": "https://mcp.pcrzero.com/mcp"
}
}
}{
"mcpServers": {
"pcrzero": {
"serverUrl": "https://mcp.pcrzero.com/mcp"
}
}
}{
"mcpServers": {
"pcrzero": {
"url": "https://mcp.pcrzero.com/mcp"
}
}
}name: Pcrzero
version: 0.0.1
schema: v1
mcpServers:
- name: Pcrzero
type: streamable-http
url: https://mcp.pcrzero.com/mcp{
"mcpServers": {
"pcrzero": {
"httpUrl": "https://mcp.pcrzero.com/mcp"
}
}
}{
"mcpServers": {
"pcrzero": {
"type": "http",
"url": "https://mcp.pcrzero.com/mcp"
}
}
}{
"mcpServers": {
"pcrzero": {
"url": "https://mcp.pcrzero.com/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fmcp.pcrzero.com%2Fmcp&type=streamable_http&id=pcrzero&name=Pcrzero
It answered our last check on 18 October 2026 in 76 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 pcrzero.com and served from mcp.pcrzero.com, the vendor's own domain: https://mcp.pcrzero.com/mcp.
3, as returned by the server's own tools/list on 31 August 2026: get_keyset, issue_receipt, verify_receipt.
It answered our last check on 18 October 2026 in 76 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.pcrzero.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.pcrzero. Endpoint host: mcp.pcrzero.com. ARD identifier: urn:air:com.pcrzero:mcp:mcp.
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.