agent-kg.ai

Name: agent-kg.ai
Price: 0.01 USDC
Availability: InStock

Agentic Private Office — Matthew Keddy. 4.5B+ datapoints under management across two knowledge graphs, 100M+ in agentic volume year to date, a quarter of a billion annualised, across 20+ global markets — the agents, the keys, the tenancies and the record, under one signature.

OtherLiveeip155:8453Exactvia cdp

https://agent-kg.ai/api

Calls · 30d

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 11 snapshots so far.

$0.33

Verified settled volume

39 settlements proven x402 by their on-chain EIP-3009 marker.

$0.010

Listed price

As published in the catalog. Always read the live 402 before paying.

Calls · 30d

Upstream's own call count for this endpoint, not ours.

Unique payers · 30d

Last called 2026-09-14 01:26Z

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0x0Bfd52Ea41841D0F1121399167bfE36781d40ebB

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "error": "Payment required: $0.01 USDC on eip155:8453",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x0Bfd52Ea41841D0F1121399167bfE36781d40ebB",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://agent-kg.ai/api",
      "description": "A signed statement of the office's current holdings summary for $0.01 USDC — Agentic Private Office — Matthew Keddy: shareholdings, hyperscaler tenancies, keys and as-of, drawn from /facts.json and signed EdDSA (kid mk-office-x402-2026-09), with a receipt that resolves forever at /x402/receipt/{nonce}.",
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 60
    }
  ],
  "operator": "Agentic KG Holdings",
  "receipts": {
    "kid": "mk-office-x402-2026-09",
    "jwks": "https://agent-kg.ai/x402/jwks.json",
    "resolve": "https://agent-kg.ai/x402/receipt/{nonce}"
  },
  "resource": {
    "url": "https://agent-kg.ai/api",
    "mimeType": "application/json",
    "description": "A signed statement of the office's current holdings summary for $0.01 USDC — Agentic Private Office — Matthew Keddy: shareholdings, hyperscaler tenancies, keys and as-of, drawn from /facts.json and signed EdDSA (kid mk-office-x402-2026-09), with a receipt that resolves forever at /x402/receipt/{nonce}."
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET"
        },
        "output": {
          "type": "json",
          "example": {
            "data": {
              "office": "Agentic Private Office — Matthew Keddy",
              "holdings": [
                {
                  "url": "https://gsc-em.com",
                  "name": "GreenCore Solutions Corp."
                }
              ]
            },
            "receipt": {
              "network": "eip155:8453",
              "settled": true,
              "amount_usdc": "0.01",
              "receipt_url": "https://agent-kg.ai/x402/receipt/{nonce}"
            },
            "statement": "<EdDSA JWT over data, kid mk-office-x402-2026-09>"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET",
                  "HEAD"
                ],
                "type": "string"
              }
            }
          },
          "output": {
            "type": "object",
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      }
    }
  },
  "free_route": "https://agent-kg.ai/facts.json",
  "x402Version": 2
}

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.01USDC≈ $0.01 USD

on Base · exact scheme

Pay 0.01 USDC on Base to 0x0Bfd…40ebB. The signed payment is good for 1 minute.

Paid to: 0x0Bfd…40ebB
USD Coin contract: 0x8335…02913
Payment window: 1 minute
As published: 10000 smallest units
Buys: The office facts of record for $0.01 USDC — Agentic Private Office — Matthew Keddy: holdings, tenancies, keys, rulings and RADAR, the same document served free at /facts.json. The payment buys the receipted call: an EdDSA-signed receipt (kid mk-office-x402-2026-09) that resolves forever at /x402/receipt/{nonce}.
Returns: application/json

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x0Bfd52Ea41841D0F1121399167bfE36781d40ebB",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://agent-kg.ai/api",
    "description": "The office facts of record for $0.01 USDC — Agentic Private Office — Matthew Keddy: holdings, tenancies, keys, rulings and RADAR, the same document served free at /facts.json. The payment buys the receipted call: an EdDSA-signed receipt (kid mk-office-x402-2026-09) that resolves forever at /x402/receipt/{nonce}.",
    "maxAmountRequired": "10000",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET"
      },
      "output": {
        "type": "json",
        "example": {
          "data": {
            "office": "Agentic Private Office — Matthew Keddy",
            "holdings": [
              {
                "url": "https://gsc-em.com",
                "name": "GreenCore Solutions Corp."
              }
            ]
          },
          "receipt": {
            "network": "eip155:8453",
            "settled": true,
            "amount_usdc": "0.01",
            "receipt_url": "https://agent-kg.ai/x402/receipt/{nonce}"
          }
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET",
                "HEAD"
              ],
              "type": "string"
            }
          }
        },
        "output": {
          "type": "object",
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog: 2026-09-14 01:26Z
Last indexed by Roundhouse: 2026-09-24 09:30Z
Last enriched (probe, favicon, geo): 2026-09-14 02:15Z
x402 version: 2
Max timeout: 60s
Liveness probe: HTTP 402

Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 11 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md

Show the prompt

Using Roundhouse, look up the x402 service agent-kg.ai and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=agent-kg.ai'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://agent-kg.ai/api, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.