Roundhouse

aizamon.com

No description published for this endpoint.

OtherLiveeip155:8453Exactvia facilitator:thirdweb
https://aizamon.com/x402/v1/book
Calls · 30d
2
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 14 snapshots so far.
$13.66
Verified settled volume
176 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
Never called
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xB88544cF8E9E97EEb2F313e0D3528FC1e50C2887

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": "X-PAYMENT header is required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "sku": "SKU_AG_BOOK_01",
        "name": "USD Coin",
        "version": "2",
        "intentId": "79cd92c5-1bcc-4c63-bc00-540cc602f872",
        "amountUsdc": 0.01,
        "resourceUrl": "https://aizamon.com/x402/v1/book",
        "assetTransferMethod": "eip3009"
      },
      "payTo": "0xB88544cF8E9E97EEb2F313e0D3528FC1e50C2887",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://aizamon.com/x402/v1/book",
      "description": "Get the highest 24h-volume Polymarket and Kalshi markets, each with volume, bid, and ask. Pass ?q= to keep markets that share a word, or omit q for the liquid board. $0.01 USDC. Included in the hour pass. Includes a signed Ed25519 receipt you can check with the published key.",
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://aizamon.com/x402/v1/book",
    "tags": [
      "prediction market",
      "order book",
      "polymarket",
      "x402",
      "book",
      "kalshi",
      "volume",
      "liquidity",
      "under-cap"
    ],
    "iconUrl": "https://aizamon.com/favicon.svg",
    "mimeType": "application/json",
    "description": "Prediction market book. Get the highest 24h-volume Polymarket and Kalshi markets, each with volume, bid, and ask. Pass ?q= to keep markets that share a word, or omit q for the liquid board. $0.01 USDC. Included in the hour pass. Includes a signed Ed25519 receipt you can check with the published key.",
    "serviceName": "Prediction market book"
  },
  "acceptsV2": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "sku": "SKU_AG_BOOK_01",
        "name": "USD Coin",
        "version": "2",
        "intentId": "79cd92c5-1bcc-4c63-bc00-540cc602f872",
        "amountUsdc": 0.01,
        "resourceUrl": "https://aizamon.com/x402/v1/book",
        "assetTransferMethod": "eip3009"
      },
      "payTo": "0xB88544cF8E9E97EEb2F313e0D3528FC1e50C2887",
      "amount": "10000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxAmountRequired": "10000",
      "maxTimeoutSeconds": 300
    }
  ],
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "q": "fed rate"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "ok": true,
            "sku": "SKU_AG_BOOK_01",
            "result": {
              "book": {
                "kalshi": {
                  "count": 1,
                  "markets": [
                    {
                      "yesAsk": 0.43,
                      "yesBid": 0.4,
                      "question": "example",
                      "volume24hr": 500
                    }
                  ]
                },
                "polymarket": {
                  "count": 1,
                  "markets": [
                    {
                      "bestAsk": 0.42,
                      "bestBid": 0.4,
                      "question": "example",
                      "volume24hr": 1000
                    }
                  ]
                }
              }
            },
            "protocol": "x402"
          }
        }
      },
      "schema": {
        "type": "object",
        "$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",
                  "DELETE"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "properties": {
                  "q": {
                    "type": "string",
                    "description": "Optional topic. Omit for the highest 24h-volume markets."
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "properties": {
                  "ok": {
                    "type": "boolean"
                  },
                  "sku": {
                    "type": "string"
                  },
                  "result": {
                    "type": "object"
                  },
                  "protocol": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      }
    },
    "aizamon": {
      "sku": "SKU_AG_BOOK_01",
      "note": "Standard x402 v2. Prefer PAYMENT-SIGNATURE (EIP-3009). Legacy: send USDC then X-PAYMENT {intentId,txHash}.",
      "asset": "USDC",
      "payTo": "0xB88544cF8E9E97EEb2F313e0D3528FC1e50C2887",
      "accept": "https://aizamon.com/x402/v1/book",
      "network": "eip155:8453",
      "resumed": true,
      "settler": {
        "mode": "cdp_facilitator",
        "note": "CDP facilitator will verify+settle PAYMENT-SIGNATURE payloads (Bazaar indexing).",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "network": "eip155:8453",
        "payaiUrl": "https://facilitator.payai.network",
        "cdpFacilitator": true,
        "settlerAddress": "0x76ECF3983f71F397e31D4645eAf8A493347e7FfC",
        "payaiFacilitator": true,
        "localSettlerConfigured": true
      },
      "intentId": "79cd92c5-1bcc-4c63-bc00-540cc602f872",
      "protocol": "x402",
      "queryHint": "Pass ?q= market topic keywords (e.g. ?q=openai+ipo). Optional ?echo= string echoed back.",
      "amountUsdc": 0.01,
      "howToSettle": {
        "headers": {
          "x-agent-id": "<optional-stable-bot-id>",
          "PAYMENT-SIGNATURE": "base64url(PaymentPayload v2 with resource + accepted + payload.authorization)"
        },
        "preferred": "x402 client SDK / wallet agent signs EIP-3009 and retries with PAYMENT-SIGNATURE",
        "legacyHeaders": {
          "X-PAYMENT": "base64url({\"intentId\":\"…\",\"txHash\":\"0x…\",\"paymentRail\":\"usdc_base\"})"
        },
        "classicFulfill": {
          "body": {
            "txHash": "0x…",
            "payload": {},
            "intentId": "79cd92c5-1bcc-4c63-bc00-540cc602f872",
            "paymentRail": "usdc_base"
          },
          "path": "https://aizamon.com/fulfill",
          "method": "POST"
        }
      },
      "nextStepCute": "Any x402 wallet: sign PAYMENT-SIGNATURE for 0.01 USDC on Base, retry this URL. No MCP install. No email.",
      "recoveryToken": "b94834491ca3438dc4fff1baee1cdc6261be2ac6a8ac66a6"
    }
  },
  "x402Version": 1
}

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 0xB885…C2887. The signed payment is good for 5 minutes.

Paid to
0xB885…C2887
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
10000 smallest units
Returns
application/json
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "payTo": "0xB88544cF8E9E97EEb2F313e0D3528FC1e50C2887",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://aizamon.com/x402/v1/book",
    "description": "",
    "maxAmountRequired": "10000",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog
2026-10-27 13:40Z
Last indexed by Roundhouse
2026-11-07 12:16Z
Last enriched (probe, favicon, geo)
2026-11-07 06:46Z
x402 version
1
Max timeout
300s
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. 14 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 aizamon.com 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=aizamon.com'
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://aizamon.com/x402/v1/book, 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. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

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