OSM PostgreSQL Server

9 tools. 6 can modify or destroy data without limits.

6 write tools that can modify data. Rate limits recommended.

Last updated:

6 can modify or destroy data
3 read-only
9 tools total

Community server · catalogue entry verified 11/06/2026

How to control OSM PostgreSQL Server ↓

Read (3) Write / Execute (6) Destructive / Financial (0)
High Risk

6 of OSM PostgreSQL Server's 9 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

PolicyLayer is an MCP gateway — it sits between your AI agents and OSM PostgreSQL Server, and nothing reaches the server without passing your rules. These are the rules we recommend:

Rate limit write operations
{
  "add_map_line": {
    "limits": [
      {
        "counter": "add_map_line_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations
{
  "get_map_screenshot": {
    "limits": [
      {
        "counter": "get_map_screenshot_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

  1. Create a free account and register OSM PostgreSQL Server — nothing to install.
  2. Add these rules — paste them, or build them visually. Tune the limits to your setup.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
ENFORCE POLICY ON OSM POSTGRESQL →

Free to start. No card required.

How do I prevent bulk modifications through OSM PostgreSQL Server? +

The OSM PostgreSQL Server server has 5 write tools including add_map_line, add_map_marker, add_map_polygon. Set a rate limit in your policy -- for example, 10 calls per hour prevents an agent from making more than 10 modifications per hour. PolicyLayer enforces this at the gateway, before calls reach OSM PostgreSQL Server.

How many tools does the OSM PostgreSQL Server MCP server expose? +

9 tools across 2 categories: Read, Write. 3 are read-only. 6 can modify, create, or delete data.

How do I enforce a policy on OSM PostgreSQL Server? +

Register the OSM PostgreSQL Server MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every OSM PostgreSQL Server tool call.

Deterministic rules across all 9 OSM PostgreSQL Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

Free to start. No card required.

9 OSM PostgreSQL Server tools catalogued and risk-classified — across an index of 42,500+ MCP servers.

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