robohash_url

Generate a unique robot/monster/cat avatar from any text.

SERVERUnClick SOURCE@unclick/mcp-server

Low RISK CLASS

Category Read

Parameters 40 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-malamutemayhem-unclick-mcp-server/robohash-url.md

WHAT IT DOES

What robohash_url does on UnClick

AI agents call robohash_url to retrieve information from UnClick 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
`bg`	string	—	Background: bg1 or bg2
`set`	string	—	Style: set1 (robots), set2 (monsters), set3 (heads), set4 (cats), set5 (humans)
`size`	number	—	Size in pixels (default 300)
`text`	string	—	Text seed for the avatar (default robot)

Parameters from the server's own tool schema.

RISK

Why robohash_url is rated Low

This tool generates/returns a URL or image based on input text. It is a read/fetch operation with no side effects — it constructs a deterministic avatar URL from a string. No data is written, deleted, or executed. Blast radius is minimal as misuse would only produce an avatar image.

From the tool's definition Generate a unique robot/monster/cat avatar from any text

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs robohash_url safely

PolicyLayer is an MCP gateway: it sits between your AI agents and UnClick, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For robohash_url, this is the rule to start with:

robohash_url Allowed

robohash_url is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "robohash_url": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect UnClick, apply this rule, and every robohash_url call is checked against it from then on.

FAQ

Questions about robohash_url

What does the robohash_url tool do? +

Generate a unique robot/monster/cat avatar from any text. It is categorised as a Read tool in the UnClick MCP Server, which means it retrieves data without modifying state.

What parameters does robohash_url accept? +

robohash_url accepts 4 parameters: bg, set, size, text. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on robohash_url? +

Register the UnClick MCP server in PolicyLayer and add a rule for robohash_url: 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.

What risk level is robohash_url? +

robohash_url is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit robohash_url? +

Yes. Add a rate_limit block to the robohash_url 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.

How do I block robohash_url completely? +

Set action: deny in the PolicyLayer policy for robohash_url. 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.

What MCP server provides robohash_url? +

robohash_url 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.

KEEP EXPLORING

More on UnClick, and thousands of servers like it.

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fetch_url on 0sec → The MCP Attack Database →

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