AI agents call account_get_bills_archive to retrieve information from Okx Trade without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
ccy | string | — | e.g. USDT |
end | string | — | End time (ms) |
type | string | — | 1=transfer,2=trade,3=delivery,4=auto convert,5=liquidation,6=margin transfer,7=interest,8=funding fee,9=adl,10=clawback,11=sys convert,12=strategy transfer,13=d |
after | string | — | Pagination: before this bill ID |
begin | string | — | Start time (ms) |
limit | number | — | Max results (default 20) |
before | string | — | Pagination: after this bill ID |
mgnMode | string | — | |
instType | string | — |
Parameters from the server's own tool schema.
This tool retrieves historical billing/ledger data from the OKX exchange account. It is purely informational—fetching archived records older than 7 days for audit or reporting purposes. There are no side effects, no data modification, no code execution, and no financial transactions initiated. It is a classic Read operation.
From the tool's definition Tool name includes 'get_bills' and description states 'Get archived account ledger'. The verb 'Get' and the passive retrieval action (retrieving historical billing records without modification) indicate a read-only operation.
Attacks that exploit this kind of access
Get archived account ledger (bills older than 7 days, up to 3 months). Use account_get_bills for recent 7-day records. Default 20 records, max 100. It is categorised as a Read tool in the Okx Trade MCP Server, which means it retrieves data without modifying state.
account_get_bills_archive accepts 9 parameters: ccy, end, type, after, begin, limit, before, mgnMode, instType. The full parameter table on this page comes from the server's own tool schema.
Register the Okx Trade MCP server in PolicyLayer and add a rule for account_get_bills_archive: 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 Okx Trade. Nothing to install.
account_get_bills_archive is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the account_get_bills_archive 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 account_get_bills_archive. 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.
account_get_bills_archive is provided by the Okx Trade MCP server (@okx_ai/okx-trade-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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