Plumb Data Exchange

try_verify_payment

Free: the same verification as verify_payment, limited to 3 NEW claims per client per day (asking again about a claim already checked is always free).

Input Schema

TableJSON Schema

Name	Required	Description	Default
`chain`	No	Chain of the payment	base
`payee`	Yes	Address that should have received the money (XRPL: an r... account)
`payer`	No	Only count transfers from this address (the token holder who paid)
`token`	No	ERC-20 contract (default: USDC on the chain). XRPL: RLUSD (default), XRP, or CURRENCY.rIssuer
`txHash`	Yes	Transaction hash (0x + 64 hex; XRPL: 64 hex)
`logIndex`	No	Bind to one transfer: its position within the tx's logs
`invoiceId`	No	XRPL only: the InvoiceID (64 hex) the payment must carry; binds the answer and its signed receipt to your invoice
`minAmountRaw`	No	Minimum amount in base units, e.g. "50000" = 0.05 USDC (default: any). XRPL: XRP drops, or millionths of an issued currency
`requiredLevel`	No	Proof level you need before releasing money (Base: tee_attested < zk_proven < resolved; Ethereum: finalized; XRPL: unl_quorum). The answer then says whether it is releasable.

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 10, 2026

addedInput schema / properties / invoiceId

Added value: +{
+  "description": "XRPL only: the InvoiceID (64 hex) the payment must carry; binds the answer and its signed receipt to your invoice",
+  "type": "string"
+}

Changed7 schema fields changedOct 10, 2026

changedInput schema / properties / chain / enum

Previous value: -[
-  "base",
-  "ethereum"
-]New value: +[
+  "base",
+  "ethereum",
+  "xrpl"
+]

changedInput schema / properties / minAmountRaw / description

Previous value: -"Minimum amount in base units, e.g. \"50000\" = 0.05 USDC (default: any)"New value: +"Minimum amount in base units, e.g. \"50000\" = 0.05 USDC (default: any). XRPL: XRP drops, or millionths of an issued currency"

changedInput schema / properties / payee / description

Previous value: -"Address that should have received the money"New value: +"Address that should have received the money (XRPL: an r... account)"

changedInput schema / properties / requiredLevel / description

Previous value: -"Proof level you need before releasing money (Base: tee_attested < zk_proven < resolved; Ethereum: finalized). The answer then says whether it is releasable."New value: +"Proof level you need before releasing money (Base: tee_attested < zk_proven < resolved; Ethereum: finalized; XRPL: unl_quorum). The answer then says whether it is releasable."

changedInput schema / properties / requiredLevel / enum

Previous value: -[
-  "tee_attested",
-  "zk_proven",
-  "resolved",
-  "finalized"
-]New value: +[
+  "tee_attested",
+  "zk_proven",
+  "resolved",
+  "finalized",
+  "unl_quorum"
+]

changedInput schema / properties / token / description

Previous value: -"ERC-20 contract (default: USDC on the chain)"New value: +"ERC-20 contract (default: USDC on the chain). XRPL: RLUSD (default), XRP, or CURRENCY.rIssuer"

changedInput schema / properties / txHash / description

Previous value: -"Transaction hash (0x + 64 hex)"New value: +"Transaction hash (0x + 64 hex; XRPL: 64 hex)"

Changed1 schema field changedOct 7, 2026

addedInput schema / properties / requiredLevel

Added value: +{
+  "description": "Proof level you need before releasing money (Base: tee_attested < zk_proven < resolved; Ethereum: finalized). The answer then says whether it is releasable.",
+  "enum": [
+    "tee_attested",
+    "zk_proven",
+    "resolved",
+    "finalized"
+  ],
+  "type": "string"
+}

AddedOct 7, 2026

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