Critical Risk

ordinals_cancel_listing

Cancel an active Magic Eden listing for an inscription. Requests a cancellation PSBT from Magic Eden. The seller signs the PSBT to invalidate the active listing and reclaim the inscription UTXO. No BTC fee is required beyond the miner fee for the cancellation transaction itself. Requires an unl...

Part of the Aibtc MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.

@aibtc/mcp-server Destructive Risk 4/5

AI agents may call ordinals_cancel_listing to permanently remove or destroy resources in Aibtc. Without a policy, an autonomous agent could delete critical data in a loop with no way to undo the damage. Intercept blocks destructive tools by default and requires explicit human approval before enabling them.

Without a policy, an AI agent could call ordinals_cancel_listing in a loop, permanently destroying resources in Aibtc. There is no undo for destructive operations. Intercept blocks this tool by default and only allows it when a human explicitly approves the action.

Destructive tools permanently remove data. Block by default. Only enable with explicit approval workflows.

io-github-aibtcdev-mcp-server.yaml
tools:
  ordinals_cancel_listing:
    rules:
      - action: deny
        reason: "Blocked by default — enable with approval"

See the full Aibtc policy for all 288 tools.

Tool Name ordinals_cancel_listing
Category Destructive
MCP Server Aibtc MCP Server
Risk Level Critical

View all 288 tools →

What does the ordinals_cancel_listing tool do? +

Cancel an active Magic Eden listing for an inscription. Requests a cancellation PSBT from Magic Eden. The seller signs the PSBT to invalidate the active listing and reclaim the inscription UTXO. No BTC fee is required beyond the miner fee for the cancellation transaction itself. Requires an unlocked wallet with Bitcoin (Taproot) keys. Steps: 1. Call this tool with the inscriptionId you want to delist 2. Sign the returned PSBT using psbt_sign 3. Broadcast using psbt_broadcast to finalize the cancellation. It is categorised as a Destructive tool in the Aibtc 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 ordinals_cancel_listing? +

Add a rule in your Intercept YAML policy under the tools section for ordinals_cancel_listing. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Aibtc MCP server.

What risk level is ordinals_cancel_listing? +

ordinals_cancel_listing 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 ordinals_cancel_listing? +

Yes. Add a rate_limit block to the ordinals_cancel_listing rule in your Intercept 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 ordinals_cancel_listing completely? +

Set action: deny in the Intercept policy for ordinals_cancel_listing. 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 ordinals_cancel_listing? +

ordinals_cancel_listing is provided by the Aibtc MCP server (@aibtc/mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policies on Aibtc

Open source. One binary. Zero dependencies.

npx -y @policylayer/intercept
github.com/policylayer/intercept →
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