Policy Gate is a remote MCP server that gives an AI agent 4 tools, among them first_42_sponsor, policy_check, policy_example. It answers at https://policy-gate.3labsio.workers.dev/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 6 of 6 times since 10 September 2026; the last check, on 19 October 2026, succeeded.
Deterministic allow/require_approval/deny verdicts for agent actions, before they happen.
Description as the publisher wrote it.
| Tool | What it does |
|---|---|
first_42_sponsor | Pay Fieldproof $42. Returns every live rail: Stripe card_uri, EIP-681 usdc_uri, BIP-21 btc_uri, x402 POST /v1/sponsor, Zelle, and GET /v1/invoice. One settlement meets the first-$42 bar. |
policy_check | Evaluate a proposed agent action against a policy and return allow / require_approval / deny with the matched rule and rationale. Paid per call via x402 ($0.005 USDC on Base); returns signing instructions when unpaid. Inputs: request, policy_id, policy, ledger |
policy_example | Free. Worked allow/require_approval/deny verdicts from the live policy engine, so you can judge the service before paying for it. |
policy_rules | Free. The full built-in policy: every tier, rule, condition and rationale. Nothing about how a verdict is reached is hidden. |
Every block below points at https://policy-gate.3labsio.workers.dev/mcp. Pick your client and copy.
claude mcp add --transport http policy-gate https://policy-gate.3labsio.workers.dev/mcp
{
"mcpServers": {
"policy-gate": {
"command": "npx",
"args": ["-y", "mcp-remote", "https://policy-gate.3labsio.workers.dev/mcp"]
}
}
}{
"mcpServers": {
"policy-gate": {
"url": "https://policy-gate.3labsio.workers.dev/mcp"
}
}
}{
"servers": {
"policy-gate": {
"type": "http",
"url": "https://policy-gate.3labsio.workers.dev/mcp"
}
}
}{
"context_servers": {
"policy-gate": {
"url": "https://policy-gate.3labsio.workers.dev/mcp"
}
}
}{
"mcpServers": {
"policy-gate": {
"serverUrl": "https://policy-gate.3labsio.workers.dev/mcp"
}
}
}{
"mcpServers": {
"policy-gate": {
"url": "https://policy-gate.3labsio.workers.dev/mcp"
}
}
}name: Policy Gate
version: 0.0.1
schema: v1
mcpServers:
- name: Policy Gate
type: streamable-http
url: https://policy-gate.3labsio.workers.dev/mcp{
"mcpServers": {
"policy-gate": {
"httpUrl": "https://policy-gate.3labsio.workers.dev/mcp"
}
}
}{
"mcpServers": {
"policy-gate": {
"type": "http",
"url": "https://policy-gate.3labsio.workers.dev/mcp"
}
}
}{
"mcpServers": {
"policy-gate": {
"url": "https://policy-gate.3labsio.workers.dev/mcp"
}
}
}goose://extension?url=https%3A%2F%2Fpolicy-gate.3labsio.workers.dev%2Fmcp&type=streamable_http&id=policy-gate&name=Policy%20Gate
It answered our last check on 19 October 2026 in 192 ms. Over 6 checks since 10 September 2026 it answered 6. Status here comes from Neuronto's own probes, not from the publisher.
4, as returned by the server's own tools/list on 11 September 2026: first_42_sponsor, policy_check, policy_example, policy_rules.
It answered our last check on 19 October 2026 in 192 ms. Over 6 checks since 10 September 2026 it answered 6.
Put the server under mcpServers in ~/.cursor/mcp.json with the URL https://policy-gate.3labsio.workers.dev/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: dev.workers.3labsio.policy-gate. Endpoint host: policy-gate.3labsio.workers.dev. ARD identifier: urn:air:dev.workers.3labsio.policy-gate:mcp:policy-gate.
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.