chainhilt-x402

Prediction market detail: resolution rules, outcomes with their tokenIds, tick size, fees and the raw venue payload. Errors: 400 invalid id, 422 unknown market, 502 venue failure.

DataLiveeip155:8453Exactvia cdp
PredictPolymarketPrediction-marketsMarkets
Calls · 30d
18
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 10 snapshots so far.
$2.29
Verified settled volume
809 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0010
Listed price
As published in the catalog. Always read the live 402 before paying.
18
Calls · 30d
Upstream's own call count for this endpoint, not ours.
3
Unique payers · 30d
Last called 2026-11-04 15:18Z
–
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xdECE8E839414E4a99213C658ABbD2294d5BD42B0

The wallet the 402 directs payment to. Its full payment record is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider
Coming soonAgent #1151163ERC-8004

Recent payments · which agents last used it

Every indexed settlement paid to this service’s wallet, newest first. The index does not record which endpoint a payment was for, so if this wallet serves more than one endpoint, the rows include payments for the others. Paged up to the newest 5,000; the full history is on the merchant page.

Payer PayeeChainAmountx402RouteAgeTxn hash
0xe54b…58760xdece…42b0BaseBase$0.001100%coinbase9h ago0x738dd8…2929fe
0xe54b…58760xdece…42b0BaseBase$0.001100%coinbase1d ago0xb7b5ba…1c8acd
0x4508…69370xdece…42b0BaseBase$0.001100%coinbase1d ago0xfdbd41…f8896f
0x4508…69370xdece…42b0BaseBase$0.01100%coinbase1d ago0x4ce87f…f2c657
0x4508…69370xdece…42b0BaseBase$0.001100%coinbase1d ago0x4d90da…db4497
0x4508…69370xdece…42b0BaseBase$0.01100%coinbase1d ago0xdc8707…2e37c9
0x4508…69370xdece…42b0BaseBase$0.001100%coinbase1d ago0xbd3e62…351c74
0x4508…69370xdece…42b0BaseBase$0.001100%coinbase1d ago0x6de150…c8b4af
0x4508…69370xdece…42b0BaseBase$0.001100%coinbase1d ago0xe4b995…39a1df
0x82ce…6f860xdece…42b0BaseBase$0.001100%coinbase1d ago0xcfdf0c…084f31
0x82ce…6f860xdece…42b0BaseBase$0.001100%coinbase1d ago0x8022db…ed9596
0x82ce…6f860xdece…42b0BaseBase$0.001100%coinbase2d ago0xee5fac…21b448
0xc9c7…16700xdece…42b0BaseBase$0.01100%coinbase2d ago0x7762d3…f110db
0xc9c7…16700xdece…42b0BaseBase$0.001100%coinbase2d ago0x7240f4…63fd9d
0xc9c7…16700xdece…42b0BaseBase$0.01100%coinbase2d ago0x57691d…0ee506
0x4508…69370xdece…42b0BaseBase$0.001100%coinbase3d ago0x4599b2…a42a11
0x4508…69370xdece…42b0BaseBase$0.01100%coinbase3d ago0x6a74ff…820ef0
0x4508…69370xdece…42b0BaseBase$0.001100%coinbase3d ago0x3b8e54…e5199f
0x4508…69370xdece…42b0BaseBase$0.001100%coinbase3d ago0xb3471f…800c28
0x4508…69370xdece…42b0BaseBase$0.001100%coinbase3d ago0xbb7a0d…d1c1e8
0x4508…69370xdece…42b0BaseBase$0.001100%coinbase3d ago0x1b8364…ff9a6b
0x4508…69370xdece…42b0BaseBase$0.001100%coinbase3d ago0xf08df3…0bc195
0x4508…69370xdece…42b0BaseBase$0.001100%coinbase3d ago0xa2dde0…3516c0
0x4508…69370xdece…42b0BaseBase$0.001100%coinbase3d ago0xa920b1…e21784
0x4508…69370xdece…42b0BaseBase$0.001100%coinbase3d ago0xf77bc4…82263c

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",
  "price": {
    "amount": "0.001",
    "currency": "USDC"
  },
  "message": "This endpoint requires x402 payment",
  "paymentInfo": {
    "asset": "USDC",
    "network": "base",
    "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.

0.001USDC≈ $0.001 USD
on Base · exact scheme

Pay 0.001 USDC on Base to 0xdECE…D42B0. The signed payment is good for 5 minutes.

USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
1000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xdECE8E839414E4a99213C658ABbD2294d5BD42B0",
    "amount": "1000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "pathParams": {
          "marketId": "559687"
        },
        "queryParams": {}
      },
      "output": {
        "type": "json",
        "example": {
          "market": {
            "id": "512329",
            "raw": {
              "id": "512329"
            },
            "fees": {
              "rate": 0,
              "feeType": null
            },
            "venue": "polymarket",
            "status": "open",
            "eventId": "606422",
            "negRisk": false,
            "outcomes": [
              {
                "name": "Yes",
                "price": "0.43",
                "tokenId": "111"
              },
              {
                "name": "No",
                "price": "0.57",
                "tokenId": "222"
              }
            ],
            "question": "Will the Fed cut rates at its December meeting?",
            "tickSize": "0.01",
            "tradable": true,
            "closeTime": "2026-12-10T19:00:00.000Z",
            "liquidity": "125000.5",
            "volume24h": "48210.25",
            "observedAt": "2026-10-30T12:00:00.000Z",
            "resolution": {
              "rules": "Resolves Yes if the FOMC announces a cut to the federal funds target range at its December meeting.",
              "source": "https://www.federalreserve.gov"
            },
            "conditionId": "0x9f1c1c4c1d6a2b2f0d5a7e8b3c4d5e6f708192a3b4c5d6e7f8091a2b3c4d5e6f",
            "minOrderSize": "5"
          }
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "pathParams": {
              "type": "object",
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "required": [
                "marketId"
              ],
              "properties": {
                "marketId": {
                  "type": "string",
                  "pattern": "^[A-Za-z0-9_-]{1,128}$",
                  "description": "Polymarket market id as returned by markets/search, e.g. \"512329\"."
                }
              }
            },
            "queryParams": {
              "type": "object",
              "properties": {}
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    },
    "routeTemplate": "/api/v1/predict/polymarket/markets/:marketId"
  }
}

Provenance

Seen in the source catalog
2026-11-04 15:18Z
Last indexed by Roundhouse
2026-11-13 07:10Z
Last enriched (probe, favicon, geo)
2026-11-06 22:45Z
x402 version
2
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. 10 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 chainhilt-x402 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=chainhilt-x402'
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://chainhilt.ai/api/v1/predict/polymarket/markets/:marketId, 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.