MCP 服务器

policy-gate

dev.workers.3labsio.policy-gate/policy-gate
MCP 与智能体基础设施 安全 公开且可连接 MCP 2026-07-28

此 MCP 可以做什么

Evaluates proposed agent actions against policy rules and returns deterministic allow, approval-required, or deny decisions.

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.
输入模式
{'type': 'object', 'properties': {}}
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.
输入模式
{'type': 'object', 'required': ['request'], 'properties': {'ledger': {'type': 'object', 'properties': {'unknown_usd': {'type': 'number', 'description': 'Dispatched and never resolved. Any value above zero denies with unresolved_intent, regardless of headroom: the system has lost track of this quantity. It closes by observing the target, never by a clock.'}, 'intended_usd': {'type': 'number', 'description': 'Dispatched and not yet confirmed. Counts toward the bound, so a burst in flight is not invisible to it.'}, 'committed_usd': {'type': 'number', 'description': 'Spend already known to have happened in the window'}}, 'description': 'Optional cumulative exposure for the window. A per-action gate cannot see repetition: 49 payments of $40 each pass a $50 rule individually. Omit it and any policy declaring a cumulative bound returns deny with ledger_required — a cap you can skip by omitting state is decorative. Explicit zeros are an answer; an absent object is not.'}, 'policy': {'type': 'object', 'description': 'Your own policy document, evaluated instead of ours'}, 'request': {'type': 'object', 'required': ['action'], 'properties': {'actor': {'type': 'string'}, 'action': {'type': 'string', 'description': 'Dotted action id, e.g. payments.send'}, 'params': {'type': 'object'}}}, 'policy_id': {'type': 'string', 'description': 'Built-in policy id; see policy_rules. "default-action-tiers-capped" adds a cumulative spend bound.'}}}
policy_example
Free. Worked allow/require_approval/deny verdicts from the live policy engine, so you can judge the service before paying for it.
输入模式
{'type': 'object', 'properties': {}}
policy_rules
Free. The full built-in policy: every tier, rule, condition and rationale. Nothing about how a verdict is reached is hidden.
输入模式
{'type': 'object', 'properties': {}}
已添加
first_42_sponsor
2026年9月17日 12:39
已添加
policy_check
2026年9月17日 12:39
已添加
policy_rules
2026年9月17日 12:39
已添加
policy_example
2026年9月17日 12:39