Roundhouse

agentsvc.io

111 APIs for AI agents: web scraping and crawling to Markdown, AI summaries, data extraction and cited answers, screenshots and PDF, PDF, OCR and document conversion, news, paper and developer search and more, paid per call with USDC on Base, Solana, Polygon or Arbitrum via x402. No account, no API key, free sample on every service.

DataLiveeip155:8453Exactvia wellknown:agentsvc.io
https://agentsvc.io/api/v1/proxy/prediction-markets
Calls · 30d
13↑ 6.3%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 24 snapshots so far.
$8.63
Verified settled volume
1,226 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0090
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
0x622efA6Ceb83a5b6EdBC931332f4db68B7f74F27

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

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider
Coming soonagentsvc.ioERC-8004

Live 402 challenge

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

{
  "docs": "https://agentsvc.io/docs",
  "hint": "This call costs $0.009 USDC, paid per request with USDC on Base, Solana, Polygon or Arbitrum mainnet via x402. No account, no API key. Easiest: use an x402 client (JavaScript: @x402/fetch + @x402/evm, Python: pip install x402) with a wallet holding USDC on Base; it handles the 402 automatically. Manual: sign an EIP-3009 TransferWithAuthorization for the requirements in accepts[0] (v1) or in the PAYMENT-REQUIRED response header (v2) and retry with the X-PAYMENT (v1) or PAYMENT-SIGNATURE (v2) header.",
  "error": "payment_required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x622efA6Ceb83a5b6EdBC931332f4db68B7f74F27",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://agentsvc.io/api/v1/proxy/prediction-markets",
      "description": "Live Polymarket prediction markets: outcome probabilities, 24h volume, liquidity, 24h price change and end date. Search by topic (query, e.g. 'bitcoin', 'election', 'fed rate') or omit query to get the markets with the highest 24h volume. Only open markets. Params: query (optional), limit (1 to 25, default 10).",
      "outputSchema": {
        "input": {
          "body": {
            "limit": 5,
            "query": "bitcoin"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json",
          "discoverable": true
        },
        "output": {
          "count": 1,
          "query": "bitcoin",
          "source": "Polymarket",
          "markets": [
            {
              "url": "https://polymarket.com/event/bitcoin-above-on-october-6-2026",
              "event": "Bitcoin above ___ on October 6?",
              "end_date": "2026-10-06T16:00:00Z",
              "outcomes": [
                {
                  "name": "Yes",
                  "probability": 0.9975
                },
                {
                  "name": "No",
                  "probability": 0.0025
                }
              ],
              "question": "Will the price of Bitcoin be above $82,000 on October 6?",
              "liquidity_usd": 46546.4,
              "volume_24h_usd": 86277.68,
              "price_change_24h": 0.011,
              "volume_total_usd": 129904.32
            }
          ],
          "fetched_at": "2026-10-06T12:00:00.000Z"
        }
      },
      "maxAmountRequired": "9000",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
      },
      "payTo": "5JzPS5qpEwUM1vTC9GG7uqvwJdHzbEwfoPHf2Ki977tg",
      "scheme": "exact",
      "network": "solana",
      "mimeType": "application/json",
      "resource": "https://agentsvc.io/api/v1/proxy/prediction-markets",
      "description": "Live Polymarket prediction markets: outcome probabilities, 24h volume, liquidity, 24h price change and end date. Search by topic (query, e.g. 'bitcoin', 'election', 'fed rate') or omit query to get the markets with the highest 24h volume. Only open markets. Params: query (optional), limit (1 to 25, default 10).",
      "outputSchema": {
        "input": {
          "body": {
            "limit": 5,
            "query": "bitcoin"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json",
          "discoverable": true
        },
        "output": {
          "count": 1,
          "query": "bitcoin",
          "source": "Polymarket",
          "markets": [
            {
              "url": "https://polymarket.com/event/bitcoin-above-on-october-6-2026",
              "event": "Bitcoin above ___ on October 6?",
              "end_date": "2026-10-06T16:00:00Z",
              "outcomes": [
                {
                  "name": "Yes",
                  "probability": 0.9975
                },
                {
                  "name": "No",
                  "probability": 0.0025
                }
              ],
              "question": "Will the price of Bitcoin be above $82,000 on October 6?",
              "liquidity_usd": 46546.4,
              "volume_24h_usd": 86277.68,
              "price_change_24h": 0.011,
              "volume_total_usd": 129904.32
            }
          ],
          "fetched_at": "2026-10-06T12:00:00.000Z"
        }
      },
      "maxAmountRequired": "9000",
      "maxTimeoutSeconds": 300
    }
  ],
  "payment": {
    "asset": "USDC",
    "pay_to": "0x622efA6Ceb83a5b6EdBC931332f4db68B7f74F27",
    "scheme": "exact",
    "network": "eip155:8453",
    "chain_id": 8453,
    "price_usd": 0.009,
    "network_v1": "base",
    "also_accepted": {
      "see": "accepts[1] (v1 body) or PAYMENT-REQUIRED accepts[1] (v2)",
      "pay_to": "5JzPS5qpEwUM1vTC9GG7uqvwJdHzbEwfoPHf2Ki977tg",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "asset_mint": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v"
    },
    "amount_atomic": "9000",
    "asset_contract": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "x402_versions_accepted": [
      1,
      2
    ]
  },
  "request": {
    "method": "POST",
    "content_type": "application/json",
    "input_schema": {
      "type": "object",
      "properties": {
        "limit": {
          "type": "integer",
          "default": 10,
          "maximum": 25,
          "minimum": 1
        },
        "query": {
          "type": "string",
          "description": "Topic to search, e.g. 'bitcoin' or 'election'. Omit for top markets by 24h volume."
        }
      }
    },
    "example_input": {
      "limit": 5,
      "query": "bitcoin"
    }
  },
  "try_free": "https://agentsvc.io/api/v1/try/prediction-markets",
  "x402Version": 1,
  "service_info": "https://agentsvc.io/api/v1/services/prediction-markets"
}

Accepts

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

0.009USDC≈ $0.009 USD
on Base · exact scheme

Pay 0.009 USDC on Base to 0x622e…74F27. The signed payment is good for 5 minutes.

Paid to
0x622e…74F27
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
9000 smallest units
9000units
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.

Paid to
5JzPS5…977tg
Token contract
EPjFWd…TDt1v
Payment window
5 minutes
9000units
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.

Paid to
0x622e…74F27
Token contract
0x3c49…c3359
Payment window
5 minutes
9000units
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.

Paid to
0x622e…74F27
Token contract
0xaf88…e5831
Payment window
5 minutes
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x622efA6Ceb83a5b6EdBC931332f4db68B7f74F27",
    "amount": "9000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "CjNFTjvBhbJJd2B5ePPMHRLx1ELZpa8dwQgGL727eKww"
    },
    "payTo": "5JzPS5qpEwUM1vTC9GG7uqvwJdHzbEwfoPHf2Ki977tg",
    "amount": "9000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x622efA6Ceb83a5b6EdBC931332f4db68B7f74F27",
    "amount": "9000",
    "scheme": "exact",
    "network": "eip155:137",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x622efA6Ceb83a5b6EdBC931332f4db68B7f74F27",
    "amount": "9000",
    "scheme": "exact",
    "network": "eip155:42161",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "limit": 5,
          "query": "bitcoin"
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "data": {
            "count": 1,
            "query": "bitcoin",
            "source": "Polymarket",
            "markets": [
              {
                "url": "https://polymarket.com/event/bitcoin-above-on-october-6-2026",
                "event": "Bitcoin above ___ on October 6?",
                "end_date": "2026-10-06T16:00:00Z",
                "outcomes": [
                  {
                    "name": "Yes",
                    "probability": 0.9975
                  },
                  {
                    "name": "No",
                    "probability": 0.0025
                  }
                ],
                "question": "Will the price of Bitcoin be above $82,000 on October 6?",
                "liquidity_usd": 46546.4,
                "volume_24h_usd": 86277.68,
                "price_change_24h": 0.011,
                "volume_total_usd": 129904.32
              }
            ],
            "fetched_at": "2026-10-06T12:00:00.000Z"
          },
          "success": true
        }
      }
    },
    "tags": [
      "polymarket",
      "prediction-markets",
      "odds",
      "probability",
      "forecast",
      "prediction-market",
      "betting-odds"
    ],
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "required": [],
              "properties": {
                "limit": {
                  "type": "integer",
                  "default": 10,
                  "maximum": 25,
                  "minimum": 1
                },
                "query": {
                  "type": "string",
                  "description": "Topic to search, e.g. 'bitcoin' or 'election'. Omit for top markets by 24h volume."
                }
              }
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST",
                "PUT",
                "PATCH"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "required": [
                "success",
                "data"
              ],
              "properties": {
                "data": {
                  "type": "object",
                  "required": [
                    "source",
                    "markets"
                  ],
                  "properties": {
                    "count": {
                      "type": "integer"
                    },
                    "query": {
                      "type": [
                        "string",
                        "null"
                      ]
                    },
                    "source": {
                      "type": "string"
                    },
                    "markets": {
                      "type": "array",
                      "items": {
                        "type": "object",
                        "properties": {
                          "url": {
                            "type": "string"
                          },
                          "event": {
                            "type": "string"
                          },
                          "end_date": {
                            "type": "string"
                          },
                          "outcomes": {
                            "type": "array",
                            "items": {
                              "type": "object",
                              "properties": {
                                "name": {
                                  "type": "string"
                                },
                                "probability": {
                                  "type": "number",
                                  "description": "0 to 1, last price"
                                }
                              }
                            }
                          },
                          "question": {
                            "type": "string"
                          },
                          "liquidity_usd": {
                            "type": "number"
                          },
                          "volume_24h_usd": {
                            "type": "number"
                          },
                          "price_change_24h": {
                            "type": "number"
                          },
                          "volume_total_usd": {
                            "type": "number"
                          }
                        }
                      }
                    },
                    "fetched_at": {
                      "type": "string",
                      "format": "date-time"
                    }
                  }
                },
                "success": {
                  "type": "boolean"
                }
              }
            }
          }
        }
      }
    },
    "category": "finance"
  }
}

Provenance

Seen in the source catalog
—
Last indexed by Roundhouse
2026-10-12 16:15Z
Last enriched (probe, favicon, geo)
2026-10-12 16:45Z
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. 24 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 agentsvc.io 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=agentsvc.io'
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://agentsvc.io/api/v1/proxy/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.