wallet_relinquishCertificate

THE RISK

Critical Risk

Why wallet_relinquishCertificate needs a policy

The tool irreversibly removes a certificate from the wallet. Deletion/removal of cryptographic certificates from a blockchain wallet is a destructive, likely irreversible action. Misuse by an AI agent could result in permanent loss of identity credentials or access rights on the BSV blockchain.

From the tool's definition Removes a certificate from the wallet

Documented attack patterns abuse exactly the kind of access wallet_relinquishCertificate gives an agent:

POLICY

How to control wallet_relinquishCertificate

PolicyLayer is an MCP gateway — it sits between your AI agents and Bitcoin SV MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for wallet_relinquishCertificate:

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "wallet_relinquishCertificate"
  ]
}

wallet_relinquishCertificate disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register Bitcoin SV MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Bitcoin SV MCP Server tools

Financial bsocial_createPost Create a social post on the BSV blockchain using B:// and MAP protocols. Posts are stored Financial wallet_cancelListing Cancel an ordinal marketplace listing Financial wallet_transferOrdToken Transfer an ordinal inscription or send BSV21 fungible tokens. Use type= Financial wallet_acquireCertificate Acquires an identity certificate from a certifier. Financial wallet_listOrdinal List an ordinal for sale on the marketplace Financial wallet_mintCollection Mint a collection of ordinals from a folder of images with proper metadata. This tool crea Financial wallet_opnsDeregister Deregister an OpNS name Financial wallet_purchaseListing Purchases a listing from the Bitcoin SV ordinals marketplace. Supports both NFT purchases

All 80 Bitcoin SV MCP Server tools →

Destructive tools on other servers

Android Forensics ADB MCP Server create_full_backup 0xarchive web3_revoke_key Frida Game Hacking MCP clear_scan cPanel MCP Server clear_spam_box

Go deeper

Govern database agents → Read-only defaults, blocked table drops, and no DELETE without a WHERE clause on every query.
Critical-risk tools in Bitcoin SV MCP Server → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →
PolicyLayer vs alternatives → How deterministic, per-call MCP policy compares with gateways, identity layers, and authorisation platforms.

FAQ

Questions about wallet_relinquishCertificate

What does the wallet_relinquishCertificate tool do? +

Removes a certificate from the wallet. It is categorised as a Destructive tool in the Bitcoin SV MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on wallet_relinquishCertificate? +

Register the Bitcoin SV MCP Server MCP server in PolicyLayer and add a rule for wallet_relinquishCertificate: 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 Bitcoin SV MCP Server. Nothing to install.

What risk level is wallet_relinquishCertificate? +

wallet_relinquishCertificate is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit wallet_relinquishCertificate? +

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

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

wallet_relinquishCertificate is provided by the Bitcoin SV MCP Server MCP server (b-open-io/bsv-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Bitcoin SV MCP Server tool call.

Start from Bitcoin SV MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →