com.policylayer由 policylayer.com 发布官方发布者v1.0.1更新于 Oct 24, 2026
The MCP server that vets MCP servers: identity, risk grade and per-tool risk before you install.
发布方自己的服务：PolicyLayer
托管在 PolicyLayer 的服务，让助手在安装前查询已发布的 MCP 服务器，核对其身份、风险等级和每个工具的风险。
Web executable，通过 Streamable HTTP。 远程服务在工作区中配置后即可从网页运行时运行。
把这段提示词粘贴到 Claude Code、Codex、Cursor 等智能体，或 SourceWeft 对话中。智能体会读取该服务器的安装指南，先向你展示发布者、端点和登录方式，经你同意后再把它添加到你的客户端。密钥不会写进任何命令。
阅读 https://sourceweft.com/mcp/com.policylayer%2Fregistry/install.md，并按其中说明把这个 MCP 服务器接入我的客户端。修改任何配置之前，先告诉我它的发布者、端点和登录方式，等我确认。不要把 API 密钥写进命令或我会提交的文件；问我密钥应从哪里获取。把它添加到你客户端的 mcpServers 配置中。
{
"mcpServers": {
"registry": {
"type": "http",
"url": "https://api.policylayer.com/mcp"
}
}
}The MCP server that vets MCP servers.
Connect your agent to the PolicyLayer registry and it can ask one question before installing or allowing any MCP server: is this safe? The answer is the published registry record: verified identity with the evidence, an A to F risk grade, probed auth posture and every tool's risk classification.
https://api.policylayer.com/mcp (Streamable HTTP)Claude Code
Claude (desktop / web)
Settings → Connectors → Add custom connector → URL https://api.policylayer.com/mcp
Cursor / Windsurf / VS Code
Then tell your agent: "check any MCP server against PolicyLayer before installing it." Add it to your team's agent instructions and every install gets vetted.
Ask your agent "is the github MCP server safe to install?" and it calls:
and gets back the published record (trimmed):
get_change_events needs a Registry Licence key (plr_...), self-serve at policylayer.com/registry/pricing.
--header "Authorization: Bearer plr_..." to the command above"headers": { "Authorization": "Bearer plr_..." } inside the server entryEverything about a single server is free and complete: the full record, every tool, the whole classification. A Registry Licence adds breadth across the catalogue: the change feed above, plus bulk snapshots, keyset paging and webhooks on the /v1 API.
The connect kit for a hosted service. The server runs at api.policylayer.com; there is no code to run from here. server.json is the listing published to the official MCP Registry as com.policylayer/registry. The MIT licence covers the contents of this repository only; the hosted service and the registry data are licensed separately.
来源：README.md，提交 d95b8a6
Check an MCP server against the PolicyLayer registry BEFORE installing or allowing it. Accepts a registry slug, an npm package name (scoped or not), a remote server URL (https://…), or a server name. Returns the full published record: identity verification with its evidence, risk grade, auth posture, freshness, and the tool surface listed riskiest-first. A server the registry does not know is queued for scanning by this very call — check back shortly.
server必填Check a whole MCP stack against the PolicyLayer registry in one call — up to 25 servers, each given as candidate identifiers (npm package name, registry slug, or remote URL) tried in order until one resolves. Returns the published record for every hit — plus a deterministic verdict (attention signals and a suggested action) — and the lookup status for every miss; counts, grades and flagged tools come from the published records only. Costs one rate-limit unit per server.
servers必填Search the PolicyLayer registry of published MCP servers by name, slug or package substring. Returns candidate matches with risk grade, identity confidence (verified / unverified / mismatch — mismatch means it claims to be an official server with no verifiable link to the brand) and tool count — follow up with check_mcp_server on the match you meant.
limitquery必填One tool's full risk classification on a published MCP server: category, severity, risk analysis and evidence, OWASP classes, parameter schema and the recommended policy default. Use when deciding whether to allow a specific tool call, e.g. "should execute_sql on this server be permitted?"
tool必填server必填The registry change feed: tool-surface drift, auth-posture flips, impostor flags, version bumps — every event the freshness watchers emit, id-cursored so a consumer resumes exactly where it stopped. Requires a Registry Licence key (Authorization: Bearer plr_...); self-serve at https://policylayer.com/registry/pricing.
limitafter_idseverity已满足适用检查项的 100%
该评分衡量此收录条目的完整程度，依据注册中心条目、端点与公开来源计算得出。它不是对服务器本身的评价，也不表示服务器安全或当前可用：可连通性是带日期的检查结果，评分也不包含安装量或用户评价。
claude mcp add --transport http policylayer https://api.policylayer.com/mcp{ "mcpServers": { "policylayer": { "url": "https://api.policylayer.com/mcp"} } }{ "name": "check_mcp_server", "arguments": { "server": "github" } }{ "slug": "github", "riskGrade": "D", "identity": { "verification": "official", "confidence": "verified" }, "posture": { "auth": "gated", "rateLimited": false }, "toolCount": 86, "tools": [ { "name": "delete_file", "category": "Destructive", "severity": "High", "recommendedPolicy": { "action": "deny" } } ]}