Deterministic allow/require_approval/deny verdicts for agent actions, before they happen.
Connect Remote server
claude mcp add --transport http policy-gate 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"
}
}
}
Settings > Connectors > Add custom connector
URL: https://policy-gate.3labsio.workers.dev/mcp
Tools 4 found in our last check
policy_exampleFree. Worked allow/require_approval/deny verdicts from the live policy engine, so you can judge the service before paying for it.
policy_rulesFree. The full built-in policy: every tier, rule, condition and rationale. Nothing about how a verdict is reached is hidden.
policy_checkEvaluate 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.
first_42_sponsorPay 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.
Details
| Endpoint | https://policy-gate.3labsio.workers.dev/mcp (Streamable HTTP) |
| First published | 16 Aug 2026 |
| Last updated | 16 Aug 2026 |
| Registry name | dev.workers.3labsio.policy-gate/policy-gate |
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