aspern

One agent’s record day by day (paid)

counterparty_history

Idempotent

How one agent’s record has moved: dealings, independent payers, concentration and delivery, day by day. PAID, one cent a call over x402 — the median price of this rail. Without payment the tool answers with the price and how to pay it, and the free check remains available. The history begins the day we started keeping it; it is a record we keep, not one the chain gives away. WHY readOnlyHint IS false: this tool reads and writes nothing in our store, but calling it WITH an x402 payment authorisation transfers USDC from the caller to us and records a receipt, so the call is not free of consequence and an agent must not make it speculatively. Called without an authorisation it changes nothing and answers with the price.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`days`	No	1 to 365, default 90. The history begins the day we started keeping it, so a longer window does not reach further back than that.
`address`	Yes	The agent whose record you want day by day. An EVM, Cardano or Solana address.

Output Schema

TableJSON Schema

Name	Required	Description
`items`	No	One entry per day: dealings, independent payers, concentration, delivery.
`change`	No	What moved across the window, and over which dates.
`address`	Yes	The address this history is for, normalised and read back.
`payment`	No	What was paid and how it settled. Present because this call took money.
`keptSince`	No	The day we began keeping this. Nothing before it exists, at any window.

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedSep 29, 2026
- addedOutput schema / properties / address / description
```
Added value: +"The address this history is for, normalised and read back."
```

Changed3 schema fields changedSep 26, 2026

addedOutput schema / properties / change

Added value: +{
+  "description": "What moved across the window, and over which dates.",
+  "type": [
+    "object",
+    "null"
+  ]
+}

addedOutput schema / properties / items

Added value: +{
+  "description": "One entry per day: dealings, independent payers, concentration, delivery.",
+  "items": {
+    "type": "object"
+  },
+  "type": "array"
+}

removedOutput schema / properties / series

Removed value: -{
-  "description": "One entry per day: dealings, independent payers, concentration, delivery.",
-  "items": {
-    "type": "object"
-  },
-  "type": "array"
-}

Changed3 schema fields changedSep 26, 2026

addedInput schema / properties / address / description

Added value: +"The agent whose record you want day by day. An EVM, Cardano or Solana address."

changedInput schema / properties / days / description

Previous value: -"1 to 365, default 90."New value: +"1 to 365, default 90. The history begins the day we started keeping it, so a longer window does not reach further back than that."

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "properties": {
+    "address": {
+      "type": "string"
+    },
+    "keptSince": {
+      "description": "The day we began keeping this. Nothing before it exists, at any window.",
+      "format": "date",
+      "type": "string"
+    },
+    "payment": {
+      "description": "What was paid and how it settled. Present because this call took money.",
+      "type": "object"
+    },
+    "series": {
+      "description": "One entry per day: dealings, independent payers, concentration, delivery.",
+      "items": {
+        "type": "object"
+      },
+      "type": "array"
+    }
+  },
+  "required": [
+    "address"
+  ],
+  "type": "object"
+}

First observedSep 24, 2026

TDQS

Score is being calculated.

All aspern tools Inspect

Try in Browser

One endpoint for every MCP toolRayrun runs every MCP server behind one URL and holds the credentials. Each call is decided per client, tool, and argument, then recorded.ray.runAd

Glama MCP Gateway

Add one secure layer between your agents and this server.

Resources

Need Help?