Provision a Let's Encrypt certificate for a domain via the installed certbot (http-01 challenge, standalone mode). Used on self-hosted yaver boxes that terminate TLS themselves. The yaver-managed-cloud SKU does this automatically via the platform's traefik; this MCP exists for BYO-host users. Own...
AI agents call ssl_provision to retrieve information from Yaver without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
email | string | Yes | ACME account email (Let's Encrypt notification address) |
domain | string | Yes | FQDN to issue a cert for (e.g. app.example.com) |
staging | boolean | — | Use Let's Encrypt staging endpoint (avoids rate limits during iteration) |
Parameters from the server's own tool schema.
Even though ssl_provision only reads data, uncontrolled read access leaks sensitive information and racks up API costs — an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.
Attacks that exploit this kind of access
Provision a Let's Encrypt certificate for a domain via the installed certbot (http-01 challenge, standalone mode). Used on self-hosted yaver boxes that terminate TLS themselves. The yaver-managed-cloud SKU does this automatically via the platform's traefik; this MCP exists for BYO-host users. Owner-only; requires certbot present on PATH. It is categorised as a Read tool in the Yaver MCP Server, which means it retrieves data without modifying state.
ssl_provision accepts 3 parameters: email, domain, staging. Required: email, domain. The full parameter table on this page comes from the server's own tool schema.
Register the Yaver MCP server in PolicyLayer and add a rule for ssl_provision: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Yaver. Nothing to install.
ssl_provision is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the ssl_provision rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for ssl_provision. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
ssl_provision is provided by the Yaver MCP server (yaver-cli). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.