x402 Pay — USDC API Payment Helper

Payment Info

payment_info

Read-onlyIdempotent

Read the documented SML x402 v2 Base/USDC configuration and receiver before selecting a paid route. Returns configuration and a read-only policy. Fresh resource requirements override these hints; this tool does not sign, spend or prove settlement.

Input Schema

TableJSON Schema

Name	Required	Description	Default
No arguments

Output Schema

TableJSON Schema

Name	Required	Description	Default
`asset`	Yes
`pay_to`	Yes
`policy`	Yes
`network`	Yes
`product`	Yes
`protocol`	Yes
`asset_contract`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 13, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "additionalProperties": true,
+  "properties": {
+    "asset": {
+      "type": "string"
+    },
+    "asset_contract": {
+      "type": "string"
+    },
+    "network": {
+      "type": "string"
+    },
+    "pay_to": {
+      "pattern": "^0x[a-fA-F0-9]{40}$",
+      "type": "string"
+    },
+    "policy": {
+      "type": "object"
+    },
+    "product": {
+      "type": "string"
+    },
+    "protocol": {
+      "type": "string"
+    }
+  },
+  "required": [
+    "product",
+    "protocol",
+    "network",
+    "asset",
+    "asset_contract",
+    "pay_to",
+    "policy"
+  ],
+  "type": "object"
+}

First observedSep 5, 2026

TDQS

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