sap_estimate_tool_cost
Free pre-call cost estimator (dry-run — no charge, no x402 challenge). Given a tool name, returns the hosted pricing tier, estimated USD cost, and the recommended maxPriceUsd to pass to sap_payments_call_paid_tool. Always call this before any paid tool to avoid silent cap aborts. Set your maxPric...
This record as markdown: /tools/oobe-protocol-labs-sap-mcp-server/sap-estimate-tool-cost.md
What sap_estimate_tool_cost does on Sap
AI agents call sap_estimate_tool_cost to retrieve information from Sap 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 |
|---|---|---|---|
toolName | string | Yes | The MCP tool name to estimate (e.g. "jupiter_getQuote", "magicblock_swap", "sap_discover_agents"). |
arguments | object | — | Optional tool arguments. For value-action tools, the amount/size may affect the price. |
Parameters from the server's own tool schema.
Why sap_estimate_tool_cost is rated Low
Read-only dry-run that returns pricing estimates without side effects or charges.
From the tool's definition Free pre-call cost estimator (dry-run — no charge, no x402 challenge)
Attacks that exploit this kind of access
The rule that runs sap_estimate_tool_cost safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Sap, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For sap_estimate_tool_cost, this is the rule to start with:
sap_estimate_tool_cost 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 Sap, apply this rule, and every sap_estimate_tool_cost call is checked against it from then on.
Questions about sap_estimate_tool_cost
Free pre-call cost estimator (dry-run — no charge, no x402 challenge). Given a tool name, returns the hosted pricing tier, estimated USD cost, and the recommended maxPriceUsd to pass to sap_payments_call_paid_tool. Always call this before any paid tool to avoid silent cap aborts. Set your maxPriceUsd to the estimate × 1.25 to avoid abort-and-retry. This tool is always free and never triggers x402 settlement. SAP MCP execution guidance: Intent: SAP MCP tool workflow. Pricing: free; call directly without x402. Routing: free hosted call; call directly and keep it small/exact when possible. Signer boundary: hosted reads/builders never receive keypair bytes; value-moving results must be finalized locally when signing is required. It is categorised as a Read tool in the Sap MCP Server, which means it retrieves data without modifying state.
sap_estimate_tool_cost accepts 2 parameters: toolName, arguments. Required: toolName. The full parameter table on this page comes from the server's own tool schema.
Register the Sap MCP server in PolicyLayer and add a rule for sap_estimate_tool_cost: 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 Sap. Nothing to install.
sap_estimate_tool_cost 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 sap_estimate_tool_cost 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 sap_estimate_tool_cost. 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.
sap_estimate_tool_cost is provided by the Sap MCP server (https://mcp.sap.oobeprotocol.ai/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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