Roundhouse

OmniProvider

Pay-per-call cited research brief. The request carries a query and 1 to 12 quotes with source URLs; the response is a short brief that cites only those quotes, at 0.008 USDC per call on Base. Payment settles after the brief is produced. A client nonce header makes a retry free of a second charge.

SearchLiveeip155:8453Exactvia facilitator:payAI
https://pay.omnidev.tech/x402/brief
LlmChat-completionsOpenai-stylePay-per-callPrepaid-credits
Calls · 30d
1
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 24 snapshots so far.
$0.09
Verified settled volume
20 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0080
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
0x1993330e3cC36B4a68B5790EFBcfE296b02efeDB

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",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x1993330e3cC36B4a68B5790EFBcfE296b02efeDB",
      "scheme": "exact",
      "network": "base",
      "mimeType": "application/json",
      "resource": "https://pay.omnidev.tech/x402/brief",
      "description": "Cited brief built only from the quotes in the request, with [n] citations (USD 0.002). Requests with empty or missing quotes are answered 400 and not charged.",
      "maxAmountRequired": "8000",
      "maxTimeoutSeconds": 300
    }
  ],
  "mpp_url": "https://pay.omnidev.tech/v1/brief",
  "verifier": "dual_x402_mpp",
  "is_enabled": true,
  "request_id": "b0b8273da30d4bef8c81b41e2fe0f2e6",
  "x402Version": 1,
  "endpoint_key": "chat-brief"
}

Accepts

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

0.008USDC≈ $0.008 USD
on Base · exact scheme

Pay 0.008 USDC on Base to 0x1993…efeDB. The signed payment is good for 5 minutes.

Paid to
0x1993…efeDB
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
8000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x1993330e3cC36B4a68B5790EFBcfE296b02efeDB",
    "amount": "8000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "query": "What does the source say about settlement timing?",
          "citations": [
            {
              "url": "https://example.com/doc",
              "quote": "Payment settles after the response is produced."
            }
          ],
          "max_tokens": 200
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "ok": true,
          "result": {
            "brief": "Settlement happens after the response is produced [1].",
            "cited": [
              1
            ],
            "citations": [
              {
                "url": "https://example.com/doc",
                "quote": "Payment settles after the response is produced."
              }
            ]
          }
        }
      }
    },
    "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": {
              "type": "object",
              "required": [
                "query",
                "citations"
              ],
              "properties": {
                "query": {
                  "type": "string",
                  "maxLength": 2000,
                  "minLength": 3
                },
                "citations": {
                  "type": "array",
                  "items": {
                    "type": "object",
                    "required": [
                      "url",
                      "quote"
                    ],
                    "properties": {
                      "url": {
                        "type": "string"
                      },
                      "quote": {
                        "type": "string",
                        "maxLength": 1500,
                        "minLength": 8
                      }
                    }
                  },
                  "maxItems": 12,
                  "minItems": 1
                },
                "max_tokens": {
                  "type": "integer",
                  "maximum": 600,
                  "minimum": 1
                }
              },
              "additionalProperties": false
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "headers": {
              "type": "object",
              "properties": {
                "X-Omni-Client-Nonce": {
                  "type": "string",
                  "pattern": "^[A-Za-z0-9_-]{22,128}$",
                  "description": "Present on every request that carries a payment credential: a random base64url value, 22-128 characters, new for each payment. A paid request without it is answered 400 client_nonce_required and is not charged."
                }
              },
              "additionalProperties": {
                "type": "string"
              }
            },
            "bodyType": {
              "enum": [
                "json"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "json"
            },
            "example": {
              "type": "object",
              "required": [
                "ok",
                "result"
              ],
              "properties": {
                "ok": {
                  "type": "boolean"
                },
                "result": {
                  "type": "object",
                  "properties": {
                    "brief": {
                      "type": "string"
                    },
                    "cited": {
                      "type": "array"
                    },
                    "citations": {
                      "type": "array"
                    }
                  }
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-10-16 17:20Z
Last indexed by Roundhouse
2026-10-26 21:16Z
Last enriched (probe, favicon, geo)
2026-10-16 21:45Z
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 OmniProvider 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=OmniProvider'
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://pay.omnidev.tech/x402/brief, 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.