tanod.dev

Search Polymarket contracts for questions, outcome probabilities, volume, liquidity and end dates. Use when an agent needs to see what odds traders put on an event: Polymarket probabilities, volume and liquidity for a topic.

SearchLiveeip155:8453Exactvia cdp
Calls · 30d
1
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 5 snapshots so far.
$8.46
Verified settled volume
1,396 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0040
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-11-04 13:48Z
–
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x593857A4a4F619543ea12394137C3004ce841720

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

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider
Coming soonTanodERC-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
0xf209…68110x5938…1720BaseBase$0.005100%coinbase1d ago0xd92afa…12cdb7
0xf209…68110x5938…1720BaseBase$0.01100%coinbase1d ago0xf66a8a…76bc79
0xf209…68110x5938…1720BaseBase$0.01100%coinbase1d ago0x8ec039…89fd1a
0xf209…68110x5938…1720BaseBase$0.05100%coinbase1d ago0x361756…2c3a8e
0xf209…68110x5938…1720BaseBase$0.005100%coinbase1d ago0x34ab8c…a6803a
0xf209…68110x5938…1720BaseBase$0.01100%coinbase1d ago0x584ef4…25c907
0xf209…68110x5938…1720BaseBase$0.01100%coinbase1d ago0xea3b62…06bf66
0xf209…68110x5938…1720BaseBase$0.01100%coinbase1d ago0x7bccb5…3e07a4
0xf209…68110x5938…1720BaseBase$0.01100%coinbase1d ago0x5efdaf…b87dc3
0xf209…68110x5938…1720BaseBase$0.01100%coinbase1d ago0xc2f69e…72973e
0xf209…68110x5938…1720BaseBase$0.01100%coinbase1d ago0x16c63b…59821c
0xf209…68110x5938…1720BaseBase$0.01100%coinbase1d ago0x38478f…4fe49c
0xf209…68110x5938…1720BaseBase$0.01100%coinbase1d ago0x4116d8…1d9584
0xf209…68110x5938…1720BaseBase$0.01100%coinbase1d ago0x01a4c5…5a51c0
0xf209…68110x5938…1720BaseBase$0.01100%coinbase1d ago0x3a8cff…d43479
0xf209…68110x5938…1720BaseBase$0.01100%coinbase1d ago0x396e88…259481
0xf209…68110x5938…1720BaseBase$0.01100%coinbase1d ago0x648d42…0feeeb
0xf209…68110x5938…1720BaseBase$0.005100%coinbase1d ago0x0ca1f8…d82b17
0xf209…68110x5938…1720BaseBase$0.005100%coinbase1d ago0x3311ad…ebfa44
0xf209…68110x5938…1720BaseBase$0.005100%coinbase1d ago0x7e5d86…ea1eed
0xf209…68110x5938…1720BaseBase$0.005100%coinbase1d ago0x7a3963…4337fc
0xf209…68110x5938…1720BaseBase$0.005100%coinbase1d ago0xd24c0a…e92293
0xf209…68110x5938…1720BaseBase$0.005100%coinbase1d ago0xcd2a23…4e624d
0xf209…68110x5938…1720BaseBase$0.003100%coinbase1d ago0xcc9b38…3407c7
0xf209…68110x5938…1720BaseBase$0.003100%coinbase1d ago0xd62f01…453e67

Accepts

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

0.004USDC≈ $0.004 USD
on Base · exact scheme

Pay 0.004 USDC on Base to 0x5938…41720. The signed payment is good for 5 minutes.

USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
4000 smallest units
4000units
on Polygon · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Token contract
0x3c49…c3359
Payment window
5 minutes
4000units
on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Token contract
EPjFWd…TDt1v
Payment window
5 minutes
4000000000000000units
on eip155:56 · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Token contract
0x8AC7…d580d
Payment window
5 minutes
4000units
on Arbitrum · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Token contract
0xaf88…e5831
Payment window
5 minutes
0.004USDC≈ $0.004 USD
on Base · exact scheme

Pay 0.004 USDC on Base to 0x5938…41720. The signed payment is good for 168 hours.

USD Coin contract
0x8335…02913
Payment window
168 hours
As published
4000 smallest units
4000units
on Polygon · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Token contract
0x3c49…c3359
Payment window
168 hours
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
    "amount": "4000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
    "amount": "4000",
    "scheme": "exact",
    "network": "eip155:137",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
    },
    "payTo": "RMk9k3VC8dr4hhjgFh88rGhjAbzfBzHxJJ5n2fTcqus",
    "amount": "4000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x8AC76a51cc950d9822D68b83fE1Ad97B32Cd580d",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "assetTransferMethod": "permit2"
    },
    "payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
    "amount": "4000000000000000",
    "scheme": "exact",
    "network": "eip155:56",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
    "amount": "4000",
    "scheme": "exact",
    "network": "eip155:42161",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "GatewayWalletBatched",
      "version": "1",
      "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee"
    },
    "payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
    "amount": "4000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 604900
  },
  {
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "extra": {
      "name": "GatewayWalletBatched",
      "version": "1",
      "verifyingContract": "0x77777777dcc4d5a8b6e418fd04d8997ef11000ee"
    },
    "payTo": "0x593857A4a4F619543ea12394137C3004ce841720",
    "amount": "4000",
    "scheme": "exact",
    "network": "eip155:137",
    "maxTimeoutSeconds": 604900
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "mcp",
        "example": {
          "q": "bitcoin",
          "limit": 5
        },
        "toolName": "search_prediction_markets",
        "transport": "streamable-http",
        "description": "Search Polymarket contracts for questions, outcome probabilities, volume, liquidity and end dates. Use when an agent needs to see what odds traders put on an event: Polymarket probabilities, volume and liquidity for a topic.",
        "inputSchema": {
          "type": "object",
          "title": "search_prediction_marketsArguments",
          "properties": {
            "q": {
              "anyOf": [
                {
                  "type": "string",
                  "maxLength": 100,
                  "minLength": 2
                },
                {
                  "type": "null"
                }
              ],
              "title": "Q",
              "default": null,
              "description": "Optional text to search in market titles (2-100 characters). Omit to list markets."
            },
            "sort": {
              "anyOf": [
                {
                  "enum": [
                    "volume",
                    "liquidity",
                    "end_date",
                    "relevance"
                  ],
                  "type": "string"
                },
                {
                  "type": "null"
                }
              ],
              "title": "Sort",
              "default": null,
              "description": "relevance (default with q), volume (default without q), liquidity or end_date."
            },
            "limit": {
              "type": "integer",
              "title": "Limit",
              "default": 10,
              "maximum": 25,
              "minimum": 1,
              "description": "Markets returned, 1-25 (default 10)."
            },
            "status": {
              "enum": [
                "active",
                "closed",
                "all"
              ],
              "type": "string",
              "title": "Status",
              "default": "active",
              "description": "active (default), closed or all."
            }
          }
        }
      },
      "output": {
        "type": "json",
        "example": {
          "count": 1,
          "source": {
            "url": "https://gamma-api.polym…",
            "name": "Polymarket Gamma API"
          }
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "toolName",
            "inputSchema"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "mcp"
            },
            "example": {
              "type": "object"
            },
            "toolName": {
              "type": "string"
            },
            "transport": {
              "enum": [
                "streamable-http"
              ],
              "type": "string"
            },
            "description": {
              "type": "string"
            },
            "inputSchema": {
              "type": "object"
            }
          },
          "additionalProperties": false
        }
      }
    }
  },
  "builder-code": {
    "info": {
      "a": "bc_h7pxv14u"
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "a": {
          "type": "string",
          "pattern": "^[a-z0-9_]{1,32}$",
          "description": "App builder code"
        },
        "s": {
          "type": "array",
          "items": {
            "type": "string",
            "pattern": "^[a-z0-9_]{1,32}$"
          },
          "maxItems": 11,
          "description": "Service builder codes"
        },
        "w": {
          "type": "string",
          "pattern": "^[a-z0-9_]{1,32}$",
          "description": "Wallet builder code"
        }
      },
      "additionalProperties": false
    }
  },
  "payment-identifier": {
    "info": {
      "required": false
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "required"
      ],
      "properties": {
        "id": {
          "type": "string",
          "pattern": "^[a-zA-Z0-9_-]+$",
          "maxLength": 128,
          "minLength": 16
        },
        "required": {
          "type": "boolean"
        }
      }
    }
  },
  "erc20ApprovalGasSponsoring": {
    "info": {
      "version": "1",
      "description": "The facilitator accepts a raw signed approval transaction and will sponsor the gas fees."
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "from",
        "asset",
        "spender",
        "amount",
        "signedTransaction",
        "version"
      ],
      "properties": {
        "from": {
          "type": "string",
          "pattern": "^0x[a-fA-F0-9]{40}$",
          "description": "The address of the sender."
        },
        "asset": {
          "type": "string",
          "pattern": "^0x[a-fA-F0-9]{40}$",
          "description": "The ERC-20 token contract address to approve."
        },
        "amount": {
          "type": "string",
          "pattern": "^[0-9]+$",
          "description": "Approval amount (uint256)."
        },
        "spender": {
          "type": "string",
          "pattern": "^0x[a-fA-F0-9]{40}$",
          "description": "The address of the spender (Canonical Permit2)."
        },
        "version": {
          "type": "string",
          "pattern": "^[0-9]+(\\.[0-9]+)*$",
          "description": "Schema version identifier."
        },
        "signedTransaction": {
          "type": "string",
          "pattern": "^0x[a-fA-F0-9]+$",
          "description": "RLP-encoded signed transaction calling ERC20.approve()."
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-11-04 13:48Z
Last indexed by Roundhouse
2026-11-12 16:50Z
Last enriched (probe, favicon, geo)
2026-11-04 23:16Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 405
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. 5 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 tanod.dev 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=tanod.dev'
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://tanod.dev/mcp#search_prediction_markets#search_prediction_markets, 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.