buy_domain_crypto
AI agents use buy_domain_crypto to commit financial operations through InstaDomain — usually the final step of a payment, billing, or trading workflow. A call moves real money.
Buying a domain with crypto involves an irreversible financial transaction committing funds. The server context explicitly mentions crypto (x402) as a payment method for domain purchases. Even with an empty description, the name and sibling tools (buy_domain, buy_domain_mpp) confirm this is a financial purchase operation. Financial is the highest severity category and applies here.
From the tool's definition Tool name 'buy_domain_crypto' combined with server description mentioning 'buy domains (Stripe or x402 crypto)' — this tool purchases a domain using cryptocurrency payment.
Attacks that exploit this kind of access
buy_domain_crypto. It is categorised as a Financial tool in the InstaDomain MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the InstaDomain MCP server in PolicyLayer and add a rule for buy_domain_crypto: 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 InstaDomain. Nothing to install.
buy_domain_crypto 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 buy_domain_crypto 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 buy_domain_crypto. 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.
buy_domain_crypto is provided by the InstaDomain MCP server (nach-dakwale/instadomain-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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