http_request
Send a raw HTTP request. Returns the response body/status.
This record as markdown: /tools/0sec/http-request.md
What http_request does on 0sec
AI agents invoke http_request to trigger actions in 0sec. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.
Why http_request is rated High
Triggers external HTTP operations with arbitrary targets and payloads, enabling broad misuse.
From the tool's definition Send a raw HTTP request. Returns the response body/status.
Attacks that exploit this kind of access
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 stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.
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.
Questions about http_request
Send a raw HTTP request. Returns the response body/status. It is categorised as a Execute tool in the 0sec MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.
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.
http_request is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
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.
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.
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.
More on 0sec, and thousands of servers like it.
This server
Across the catalogue