bond_price
Bond Price Calculator — Fair value of a fixed-coupon bond given face value, coupon rate, market yield, and maturity.
This record as markdown: /tools/com-wingmanprotocol-agent-gateway/bond-price.md
What bond_price does on Gateway
AI agents call bond_price to retrieve information from Gateway 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 |
|---|---|---|---|
years | number | Yes | Years to maturity |
frequency | integer | — | Coupons per year (default 2) |
face_value | number | — | Face/par value (default 1000) |
coupon_rate | number | Yes | Annual coupon rate as a decimal |
market_rate | number | Yes | Annual market yield as a decimal |
Parameters from the server's own tool schema.
Why bond_price is rated Low
This is a financial calculator that performs read-only computation based on provided inputs. It retrieves or derives a value (fair bond price) without creating, modifying, deleting, or executing any operations that affect external state or data stores. No reversible or irreversible changes occur.
From the tool's definition Tool name 'bond_price' and description 'Bond Price Calculator — Fair value of a fixed-coupon bond given face value, coupon rate, market yield, and maturity' indicate a calculation/query operation that takes financial parameters as inputs and returns a…
Attacks that exploit this kind of access
The rule that runs bond_price safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Gateway, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For bond_price, this is the rule to start with:
bond_price 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 Gateway, apply this rule, and every bond_price call is checked against it from then on.
Questions about bond_price
Bond Price Calculator — Fair value of a fixed-coupon bond given face value, coupon rate, market yield, and maturity. It is categorised as a Read tool in the Gateway MCP Server, which means it retrieves data without modifying state.
bond_price accepts 5 parameters: years, frequency, face_value, coupon_rate, market_rate. Required: years, coupon_rate, market_rate. The full parameter table on this page comes from the server's own tool schema.
Register the Gateway MCP server in PolicyLayer and add a rule for bond_price: 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 Gateway. Nothing to install.
bond_price 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 bond_price 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 bond_price. 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.
bond_price is provided by the Gateway MCP server (https://wingmanprotocol.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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