Roundhouse AI

voxsift-x402.fly.dev

Transcribe a public HTTPS audio or video URL into structured JSON with timestamps, optional speaker diarization, confidence metadata, and actual-duration settlement.

MediaLiveeip155:8453Uptovia facilitator:payAI
http://voxsift-x402.fly.dev/v1/transcribe
Activity
—
Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record.
$0.75
Verified settled volume
2 settlements proven x402 by their on-chain EIP-3009 marker.
$0.200
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
0x7a58ae0464CdE978A621c45b0BEB27CaB1c25CfC

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.

{
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2",
        "paymentFlow": "upfront",
        "assetTransferMethod": "eip3009"
      },
      "payTo": "0xcf6F0acFDe826D16aE2Dfd184f8Cd8645201E720",
      "amount": "200000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://voxsift-x402.fly.dev/v1/transcribe",
    "mimeType": "application/json",
    "description": "VoxSift: 0.20 USDC upfront for the first 20 minutes; asynchronous durable job"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "body": {
            "url": "https://assembly.ai/sports_injuries.mp3",
            "diarize": true,
            "language": "en"
          },
          "type": "http",
          "method": "POST",
          "bodyType": "json"
        },
        "output": {
          "type": "json",
          "example": {
            "status": "processing",
            "request_id": "11111111-1111-4111-8111-111111111111",
            "status_url": "/v1/jobs/11111111-1111-4111-8111-111111111111"
          }
        }
      },
      "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": [
                  "url"
                ],
                "properties": {
                  "url": {
                    "type": "string",
                    "format": "uri"
                  },
                  "diarize": {
                    "type": "boolean",
                    "default": true
                  },
                  "language": {
                    "type": "string"
                  }
                },
                "additionalProperties": false
              },
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "type": "string",
                "const": "POST"
              },
              "bodyType": {
                "enum": [
                  "json",
                  "form-data",
                  "text"
                ],
                "type": "string"
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      }
    },
    "voxsift-job": {
      "info": {
        "contract": "prepaid-20m-v1",
        "idempotency_key": "required: client-generated 64 lowercase hex characters; secret replay credential",
        "failure_contract": {
          "replay": "reuse the same Idempotency-Key and identical request; no new payment",
          "version": "prepaid-20m-v1",
          "recovery": "resume polling the same provider job after transport failure or restart",
          "price_usdc": "0.20",
          "processing": "first 20 minutes; shorter audio costs the same",
          "refund_target": "within 2 business days; status endpoint tracks the claim and confirmed refund",
          "refund_execution": "operator reconciles and sends refund; runtime has no wallet signing key",
          "permanent_failure": "full 0.20 USDC refund owed to the original payer; durable refund_due claim",
          "provider_attempts": 1,
          "max_duration_seconds": 1200,
          "uncertain_settlement": "read-only reconciliation; never submit a second settlement or start unpaid work",
          "uncertain_submission": "never resubmit; full refund claim if the original provider job cannot be recovered",
          "result_retention_days": 7,
          "provider_deadline_seconds": 1800
        }
      }
    }
  },
  "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.

0.2USDC≈ $0.2 USD
on Base · upto scheme

Pay 0.2 USDC on Base to 0x7a58…25CfC. The signed payment is good for 5 minutes.

Paid to
0x7a58…25CfC
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
200000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2",
      "facilitatorAddress": "0xB2Bd29925CBbCEA7628279c91945Ca5B98bf371B",
      "assetTransferMethod": "permit2"
    },
    "payTo": "0x7a58ae0464CdE978A621c45b0BEB27CaB1c25CfC",
    "amount": "200000",
    "scheme": "upto",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Provenance

Seen in the source catalog
2026-08-12 01:48Z
Last indexed by Roundhouse
2026-09-24 12:45Z
Last enriched (probe, favicon, geo)
2026-09-18 08:45Z
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

Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record. 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 voxsift-x402.fly.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=voxsift-x402.fly.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 http://voxsift-x402.fly.dev/v1/transcribe, 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. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

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