AI agents call neon_list_databases to retrieve information from UnClick without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
api_key | string | — | |
branch_id | string | Yes | |
project_id | string | Yes |
Parameters from the server's own tool schema.
This tool queries and returns information about existing databases without creating, modifying, or deleting any data. It is a read-only operation on a database management system. The severity is low because listing databases exposes metadata but does not directly compromise data integrity, though in a multi-tenant environment unauthorized access to this list could reveal system topology.
From the tool's definition Tool name contains 'list' and description states 'List all databases on a Neon branch' — a pure retrieval operation with no side effects.
Risk signalsHandles credentials or secrets (api_key)
Attacks that exploit this kind of access
List all databases on a Neon branch. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.
neon_list_databases accepts 3 parameters: api_key, branch_id, project_id. Required: branch_id, project_id. The full parameter table on this page comes from the server's own tool schema.
Register the UnClick MCP server in PolicyLayer and add a rule for neon_list_databases: 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 UnClick. Nothing to install.
neon_list_databases 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 neon_list_databases 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 neon_list_databases. 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.
neon_list_databases is provided by the UnClick MCP server (@unclick/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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