psbt_create_ordinal_buy
Create a PSBT for buying an ordinal: buyer pays seller in BTC, seller
This record as markdown: /tools/io-github-aibtcdev-mcp-server/psbt-create-ordinal-buy.md
What psbt_create_ordinal_buy does on Aibtc
AI agents use psbt_create_ordinal_buy to commit financial operations through Aibtc, usually the final step of a payment, billing, or trading workflow. A call moves real money.
Why psbt_create_ordinal_buy is rated Critical
This tool creates a Partially Signed Bitcoin Transaction (PSBT) for purchasing an ordinal, which directly involves committing financial obligations by transferring BTC from buyer to seller. This is a financial operation involving real cryptocurrency payments, warranting the highest severity level given the irreversible nature of Bitcoin transactions.
From the tool's definition "Create a PSBT for buying an ordinal: buyer pays seller in BTC, seller"
Attacks that exploit this kind of access
The rule that runs psbt_create_ordinal_buy safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Aibtc, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For psbt_create_ordinal_buy, this is the rule to start with:
Any call to psbt_create_ordinal_buy is blocked until a human approves it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Aibtc, apply this rule, and every psbt_create_ordinal_buy call is checked against it from then on.
Questions about psbt_create_ordinal_buy
Create a PSBT for buying an ordinal: buyer pays seller in BTC, seller. It is categorised as a Financial tool in the Aibtc MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Aibtc MCP server in PolicyLayer and add a rule for psbt_create_ordinal_buy: 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 Aibtc. Nothing to install.
psbt_create_ordinal_buy is a Financial 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 psbt_create_ordinal_buy 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 psbt_create_ordinal_buy. 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.
psbt_create_ordinal_buy is provided by the Aibtc MCP server (aibtcdev/aibtc-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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