treasurydirect.securities.search
Look up a specific US Treasury security by its CUSIP identifier. Returns full auction and issuance details including security type, term, interest rate, maturity date, high yield, bid-to-cover ratio, and settlement information. CUSIPs for recent T-Bills typically start with "9127" or "9128". Sour...
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What treasurydirect.securities.search does on Apibase
AI agents call treasurydirect.securities.search to retrieve information from Apibase without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
cusip | string | Yes | CUSIP identifier of the Treasury security to look up (6–9 alphanumeric characters, e.g. "912797TW7"). CUSIPs for recent T-Bills start with "9128" or "9127". |
Parameters from the server's own tool schema.
Why treasurydirect.securities.search is rated Low
Read-only lookup of public US Treasury security data by CUSIP identifier.
From the tool's definition Look up a specific US Treasury security... Returns full auction and issuance details
Attacks that exploit this kind of access
The rule that runs treasurydirect.securities.search safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Apibase, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For treasurydirect.securities.search, this is the rule to start with:
treasurydirect.securities.search is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Apibase, apply this rule, and every treasurydirect.securities.search call is checked against it from then on.
Questions about treasurydirect.securities.search
Look up a specific US Treasury security by its CUSIP identifier. Returns full auction and issuance details including security type, term, interest rate, maturity date, high yield, bid-to-cover ratio, and settlement information. CUSIPs for recent T-Bills typically start with "9127" or "9128". Source: TreasuryDirect TA_WS, US Government open data, no auth required. It is categorised as a Read tool in the Apibase MCP Server, which means it retrieves data without modifying state.
treasurydirect.securities.search accepts 1 parameter: cusip. Required: cusip. The full parameter table on this page comes from the server's own tool schema.
Register the Apibase MCP server in PolicyLayer and add a rule for treasurydirect.securities.search: 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 Apibase. Nothing to install.
treasurydirect.securities.search 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 treasurydirect.securities.search 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 treasurydirect.securities.search. 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.
treasurydirect.securities.search is provided by the Apibase MCP server (apibase-mcp-client). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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