sap_x402_estimate_cost

SERVERSap SOURCEhttps://mcp.sap.oobeprotocol.ai/mcp

Medium RISK CLASS

Category Write

Parameters 50 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/oobe-protocol-labs-sap-mcp-server/sap-x402-estimate-cost.md

WHAT IT DOES

What sap_x402_estimate_cost does on Sap

AI agents use sap_x402_estimate_cost to create or update resources in Sap, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Sap environment.

Parameter	Type	Required	Description
`calls`	number	—	Number of calls to estimate
`agentWallet`	string	—	Agent wallet public key (base58)
`volumeCurve`	array	—	Optional array of { afterCalls, pricePerCall } pricing breakpoints
`pricePerCall`	string	—	Optional base price per call override in token base units
`totalCallsBefore`	number	—	Optional cumulative settled calls before this estimate

Parameters from the server's own tool schema.

RISK

Why sap_x402_estimate_cost is rated Medium

An AI agent can call sap_x402_estimate_cost faster than any human can review: one bad instruction and it creates or modifies resources in Sap by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs sap_x402_estimate_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_x402_estimate_cost, this is the rule to start with:

sap_x402_estimate_cost Rate-limited

sap_x402_estimate_cost stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "sap_x402_estimate_cost": {
      "limits": [
        {
          "counter": "sap_x402_estimate_cost_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Sap, apply this rule, and every sap_x402_estimate_cost call is checked against it from then on.

FAQ

Questions about sap_x402_estimate_cost

What does the sap_x402_estimate_cost tool do? +

Estimate cost for a number of calls using SDK X402Registry.estimateCost. Reads escrow/pricing when available and supports optional volume curve overrides. SAP MCP context: Payment and settlement flow. Estimate or fetch state before creating escrows or settling calls; write operations require an enabled signer mode and MCP policy approval. 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 Write tool in the Sap MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

What parameters does sap_x402_estimate_cost accept? +

sap_x402_estimate_cost accepts 5 parameters: calls, agentWallet, volumeCurve, pricePerCall, totalCallsBefore. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on sap_x402_estimate_cost? +

Register the Sap MCP server in PolicyLayer and add a rule for sap_x402_estimate_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.

What risk level is sap_x402_estimate_cost? +

sap_x402_estimate_cost is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit sap_x402_estimate_cost? +

Yes. Add a rate_limit block to the sap_x402_estimate_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.

How do I block sap_x402_estimate_cost completely? +

Set action: deny in the PolicyLayer policy for sap_x402_estimate_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.

What MCP server provides sap_x402_estimate_cost? +

sap_x402_estimate_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.

KEEP EXPLORING

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