sap_escrow_build_withdraw_transaction

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

Critical RISK CLASS

Category Financial

Parameters 40 required

Recommended Approval-gatedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/oobe-protocol-labs-sap-mcp-server/sap-escrow-build-withdraw-transaction.md

WHAT IT DOES

What sap_escrow_build_withdraw_transaction does on Sap

AI agents use sap_escrow_build_withdraw_transaction to commit financial operations through Sap, usually the final step of a payment, billing, or trading workflow. A call moves real money.

Parameter	Type	Required	Description
`nonce`	string	—	Optional escrow nonce as a decimal string. Defaults to 0.
`amount`	string	—	Withdrawal amount as a decimal string. Amount in the escrow token smallest unit: lamports for SOL, micro-USDC for USDC, or base units for the configured SPL tok
`agentWallet`	string	—	Agent owner wallet public key (base58). The escrow PDA is derived from agentWallet, depositorWallet, and nonce.
`depositorWallet`	string	—	Depositor wallet public key (base58). Only the depositor can locally sign a withdrawal from this escrow.

Parameters from the server's own tool schema.

RISK

Why sap_escrow_build_withdraw_transaction is rated Critical

Tool builds unsigned financial transactions for escrowed fund withdrawals with local signing capability.

From the tool's definition withdraw_escrow_v2, depositor signs, unlock balance, finalize transaction

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs sap_escrow_build_withdraw_transaction 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_escrow_build_withdraw_transaction, this is the rule to start with:

sap_escrow_build_withdraw_transaction Approval-gated

Any call to sap_escrow_build_withdraw_transaction is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "sap_escrow_build_withdraw_transaction": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about sap_escrow_build_withdraw_transaction

What does the sap_escrow_build_withdraw_transaction tool do? +

Hosted-safe unsigned builder for withdraw_escrow_v2. The depositor signs locally and can only withdraw unlocked balance after pending amounts are excluded. SAP MCP context: Hosted-safe unsigned Escrow V2 builder. The output is not submitted and is not signed by hosted SAP MCP. Preview it, then call local sap_payments_finalize_transaction with submit:true and confirm:true. Never create temporary signing scripts or read keypair JSON. SAP MCP execution guidance: Intent: hosted unsigned transaction builder. Pricing: paid builder; estimate first, then pay/build and finalize unsigned transactions locally when returned. Routing: hosted-safe builder. If a transaction is returned, preview/sign/submit with sap_payments_finalize_transaction; never create temporary signing scripts. Signer boundary: user-controlled local profile or external signer; OOBE hosted MCP remains non-custodial. It is categorised as a Financial tool in the Sap MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

What parameters does sap_escrow_build_withdraw_transaction accept? +

sap_escrow_build_withdraw_transaction accepts 4 parameters: nonce, amount, agentWallet, depositorWallet. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on sap_escrow_build_withdraw_transaction? +

Register the Sap MCP server in PolicyLayer and add a rule for sap_escrow_build_withdraw_transaction: 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_escrow_build_withdraw_transaction? +

sap_escrow_build_withdraw_transaction is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit sap_escrow_build_withdraw_transaction? +

Yes. Add a rate_limit block to the sap_escrow_build_withdraw_transaction 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_escrow_build_withdraw_transaction completely? +

Set action: deny in the PolicyLayer policy for sap_escrow_build_withdraw_transaction. 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_escrow_build_withdraw_transaction? +

sap_escrow_build_withdraw_transaction 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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