# 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 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

Agent View of the PolicyLayer registry record for `ordinals_cancel_listing`. HTML page: https://policylayer.com/tools/io-github-aibtcdev-mcp-server/ordinals-cancel-listing

## Facts

- Tool: `ordinals_cancel_listing`
- Server: Aibtc (`aibtcdev/aibtc-mcp-server`) — https://policylayer.com/tools/io-github-aibtcdev-mcp-server.md
- Homepage: https://github.com/aibtcdev/aibtc-mcp-server
- Risk category: Financial (Critical risk)
- Registry record: grade F, identity verified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Approval-gated

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "ordinals_cancel_listing",
    "arguments": {}
  }
}
```

## Why ordinals_cancel_listing is rated Critical

This tool cancels a financial listing on a marketplace (Magic Eden) for a Bitcoin ordinal inscription. It involves signing a Bitcoin transaction (PSBT) that modifies the state of a financial asset listing and moves/reclaims a Bitcoin UTXO. This directly involves financial asset management and blockchain transactions, making Financial the appropriate category.

From the tool's own definition: "Cancel an active Magic Eden listing for an inscription. The seller signs the PSBT to invalidate the active listing and reclaim the inscription UTXO."

## Use case

AI agents use ordinals_cancel_listing to commit financial operations through Aibtc, usually the final step of a payment, billing, or trading workflow. A call moves real money.

## Recommended policy (PolicyLayer)

Verdict: **Approval-gated**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Aibtc:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "ordinals_cancel_listing": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}
```

## Other tools on Aibtc (357)

- `bitflow_cancel_order` — Destructive — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/bitflow-cancel-order.md
- `bounty_cancel` — Destructive — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/bounty-cancel.md
- `credentials_delete` — Destructive — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/credentials-delete.md
- `delete_hiro_api_key` — Destructive — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/delete-hiro-api-key.md
- `identity_unset_wallet` — Destructive — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/identity-unset-wallet.md
- `jingswap_cancel_cycle` — Destructive — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/jingswap-cancel-cycle.md
- `jingswap_cancel_sbtc` — Destructive — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/jingswap-cancel-sbtc.md
- `lightning_lock` — Destructive — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/lightning-lock.md
- `ordinals_p2p_cancel` — Destructive — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/ordinals-p2p-cancel.md
- `pillar_direct_revoke_fast_pool` — Destructive — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/pillar-direct-revoke-fast-pool.md
- `reputation_revoke_feedback` — Destructive — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/reputation-revoke-feedback.md
- `stackspot_cancel_pot` — Destructive — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/stackspot-cancel-pot.md
- `wallet_delete` — Destructive — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/wallet-delete.md
- `broadcast_transaction` — Execute — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/broadcast-transaction.md
- `btc_sign_message` — Execute — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/btc-sign-message.md
- `call_contract` — Execute — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/call-contract.md
- `deploy_contract` — Execute — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/deploy-contract.md
- `dual_stacking_opt_out` — Execute — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/dual-stacking-opt-out.md
- `inference_check_provider` — Execute — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/inference-check-provider.md
- `inscribe_child_reveal` — Execute — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/inscribe-child-reveal.md
- `inscribe_reveal` — Execute — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/inscribe-reveal.md
- `jingswap_close_deposits` — Execute — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/jingswap-close-deposits.md
- `jingswap_settle_with_refresh` — Execute — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/jingswap-settle-with-refresh.md
- `lightning_unlock` — Execute — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/lightning-unlock.md
- `news_publisher_compile_brief` — Execute — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/news-publisher-compile-brief.md
- `nonce_heal` — Execute — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/nonce-heal.md
- `nostr_sign_event` — Execute — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/nostr-sign-event.md
- `pillar_connect` — Execute — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/pillar-connect.md
- `pillar_key_generate` — Execute — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/pillar-key-generate.md
- `pillar_key_lock` — Execute — https://policylayer.com/tools/io-github-aibtcdev-mcp-server/pillar-key-lock.md
- …and 327 more: https://policylayer.com/tools/io-github-aibtcdev-mcp-server.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=io-github-aibtcdev-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-aibtcdev-mcp-server