http_request

Send a raw HTTP request. Returns the response body/status.

SERVER0sec SOURCE0sec-labs/0sec

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/0sec/http-request.md

WHAT IT DOES

What http_request does on 0sec

AI agents use http_request to create or update resources in 0sec, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your 0sec environment.

RISK

Why http_request is rated Medium

An AI agent can call http_request faster than any human can review: one bad instruction and it creates or modifies resources in 0sec by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs http_request safely

PolicyLayer is an MCP gateway: it sits between your AI agents and 0sec, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For http_request, this is the rule to start with:

http_request Rate-limited

http_request stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "http_request": {
      "limits": [
        {
          "counter": "http_request_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect 0sec, apply this rule, and every http_request call is checked against it from then on.

FAQ

Questions about http_request

What does the http_request tool do? +

Send a raw HTTP request. Returns the response body/status. It is categorised as a Write tool in the 0sec MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on http_request? +

Register the 0sec MCP server in PolicyLayer and add a rule for http_request: 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 0sec. Nothing to install.

What risk level is http_request? +

http_request is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit http_request? +

Yes. Add a rate_limit block to the http_request 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 http_request completely? +

Set action: deny in the PolicyLayer policy for http_request. 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 http_request? +

http_request is provided by the 0sec MCP server (0sec-labs/0sec). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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Govern customer-ops agents →Argument validation →Scoped token →