x402_deregister_resource
Remove a Bazaar listing. Refused unless seller_did owns the listing.
This record as markdown: /tools/network-tenzro-tenzro/x402-deregister-resource.md
What x402_deregister_resource does on Tenzro Ledger MCP
AI agents call x402_deregister_resource to permanently remove resources in Tenzro Ledger MCP, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Why x402_deregister_resource is rated Critical
This tool permanently removes a marketplace listing from Bazaar, which is an irreversible action that destroys data/state. Although access is gated by seller ownership validation, the underlying operation is destructive deletion. This is more severe than Write (which is reversible) and falls squarely into Destructive category.
From the tool's definition Tool name contains 'deregister' and description states 'Remove a Bazaar listing', which is irreversible deletion of a marketplace listing.
Attacks that exploit this kind of access
The rule that runs x402_deregister_resource safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Tenzro Ledger MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For x402_deregister_resource, this is the rule to start with:
x402_deregister_resource is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Tenzro Ledger MCP, apply this rule, and every x402_deregister_resource call is checked against it from then on.
Questions about x402_deregister_resource
Remove a Bazaar listing. Refused unless seller_did owns the listing. It is categorised as a Destructive tool in the Tenzro Ledger MCP MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Tenzro Ledger MCP server in PolicyLayer and add a rule for x402_deregister_resource: 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 Tenzro Ledger MCP. Nothing to install.
x402_deregister_resource is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the x402_deregister_resource 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 x402_deregister_resource. 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.
x402_deregister_resource is provided by the Tenzro Ledger MCP server (https://canton-mcp.tenzro.network/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
More on Tenzro Ledger, and thousands of servers like it.
Across the catalogue