bind_domain
Bind one or more of YOUR tracked domains to sites in a project (Cloudflare zone + registrar nameserver flip, then background completion — the domain typically goes live within minutes once NS propagates; poll list_domains for binding → bound). Pass pairs as an array of { domain, siteId } (max 20;...
This record as markdown: /tools/a3plus-mcp/bind-domain.md
What bind_domain does on A3plus
AI agents call bind_domain to retrieve information from A3plus without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
pairs | array | Yes | Domain → site pairings, each { domain, siteId }. Max 20 per call. |
projectId | string | Yes | The TARGET project ID — the project containing the sites to bind onto. |
Parameters from the server's own tool schema.
Why bind_domain is rated Low
Even though bind_domain 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
The rule that runs bind_domain safely
PolicyLayer is an MCP gateway: it sits between your AI agents and A3plus, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For bind_domain, this is the rule to start with:
bind_domain is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect A3plus, apply this rule, and every bind_domain call is checked against it from then on.
Questions about bind_domain
Bind one or more of YOUR tracked domains to sites in a project (Cloudflare zone + registrar nameserver flip, then background completion — the domain typically goes live within minutes once NS propagates; poll list_domains for binding → bound). Pass pairs as an array of { domain, siteId } (max 20; a single bind is a one-element array). Each domain must be available (unbind_domain it first if bound) and each target site must not already have a verified domain. CROSS-PROJECT MOVES: projectId is the TARGET project; a domain currently inventoried in another of your projects is transferred automatically — that path requires a Personal Access Token (ak_user_) with owner access to BOTH projects. Only domains already tracked in your own projects can be bound — this tool cannot claim domains from the shared registrar pool (use the dashboard for that). Banned/blocked domains (see list_domains blockedDomains) are always refused. Per-pair failures are isolated and reported; a failed pair auto-releases its domain back to available. It is categorised as a Read tool in the A3plus MCP Server, which means it retrieves data without modifying state.
bind_domain accepts 2 parameters: pairs, projectId. Required: pairs, projectId. The full parameter table on this page comes from the server's own tool schema.
Register the A3plus MCP server in PolicyLayer and add a rule for bind_domain: 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 A3plus. Nothing to install.
bind_domain 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 bind_domain 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 bind_domain. 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.
bind_domain is provided by the A3plus MCP server (a3plus-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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