Roundhouse

StableVoice

Text-to-speech on Modal via x402 and MPP. Generate Chatterbox Turbo, Chatterbox, and multilingual Chatterbox speech into StableUpload audio slots.

MediaLiveeip155:8453Exactvia cdp
https://stablevoice.dev/api/recording-tokens
Recording Tokens
Calls · 30d
1→ 0%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 11 snapshots so far.
$9.88
Verified settled volume
303 settlements proven x402 by their on-chain EIP-3009 marker.
$0.010
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 2026-08-04 13:26Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xc2f5fc2f46c8640a60a1ebfa9776338cc1b1e1dc

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.

Accepts

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

0.01USDC≈ $0.01 USD
on Base · exact scheme

Pay 0.01 USDC on Base to 0xc2f5…1e1dc. The signed payment is good for 5 minutes.

Paid to
0xc2f5…1e1dc
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
10000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xc2f5fc2f46c8640a60a1ebfa9776338cc1b1e1dc",
    "amount": "10000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "expiresAt": "2026-08-04T14:18:29.456Z",
          "publicUrl": "https://f.stableupload.dev/abc123/voice.mp3",
          "uploadUrl": "https://x402-upload-prod.s3.us-east-1.amazonaws.com/uploads/abc123/voice.mp3?X-Amz-Algorithm=...",
          "speakerLabel": "Mason",
          "suggestedText": "Hi, I'm leaving you this voice clip so you can clone my voice. The quick brown fox jumps over the lazy dog. Cellar door."
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "token": "rec_clxabcdef123",
          "expiresAt": "2026-08-04T14:18:29.456Z",
          "publicUrl": "https://f.stableupload.dev/abc123/voice.mp3",
          "recordUrl": "https://stablevoice.dev/record/rec_clxabcdef123"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "required": [
                "publicUrl",
                "expiresAt"
              ],
              "properties": {
                "postUrl": {
                  "type": "string",
                  "format": "uri",
                  "description": "Presigned POST URL from StableUpload. Pair with postFields."
                },
                "expiresAt": {
                  "type": "string",
                  "format": "date-time",
                  "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$",
                  "description": "Required StableUpload uploadUrlExpiresAt value. We clamp the recording-token TTL to this value. Do not pass StableUpload's public-file retention expiresAt."
                },
                "publicUrl": {
                  "type": "string",
                  "format": "uri",
                  "description": "StableUpload public URL where the resulting MP3 will live. Must end with .mp3."
                },
                "uploadUrl": {
                  "type": "string",
                  "format": "uri",
                  "description": "Presigned PUT URL from StableUpload. Provide either uploadUrl or postUrl+postFields."
                },
                "postFields": {
                  "type": "object",
                  "description": "Required form fields when posting to postUrl.",
                  "propertyNames": {
                    "type": "string"
                  },
                  "additionalProperties": {
                    "type": "string"
                  }
                },
                "speakerLabel": {
                  "type": "string",
                  "maxLength": 80,
                  "minLength": 1,
                  "description": "Optional name shown on the recording page (\"Recording for: …\")."
                },
                "suggestedText": {
                  "type": "string",
                  "maxLength": 500,
                  "minLength": 1,
                  "description": "Optional script the recordee will see on the recording page (max 500 chars). Improves clone quality with consistent prosody."
                },
                "requestedExpiresAt": {
                  "anyOf": [
                    {
                      "type": "integer",
                      "maximum": 9007199254740991,
                      "exclusiveMinimum": 0
                    },
                    {
                      "type": "string",
                      "pattern": "^\\d+$"
                    }
                  ],
                  "description": "Advanced optional epoch timestamp, seconds or milliseconds, for an explicit recording-link expiry. Default is 1 hour; max is 24 hours and still clamped to StableUpload uploadUrlExpiresAt."
                }
              },
              "additionalProperties": false
            },
            "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",
              "$schema": "https://json-schema.org/draft/2020-12/schema",
              "required": [
                "token",
                "recordUrl",
                "expiresAt",
                "publicUrl"
              ],
              "properties": {
                "token": {
                  "type": "string"
                },
                "expiresAt": {
                  "type": "string",
                  "format": "date-time",
                  "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d(?::[0-5]\\d(?:\\.\\d+)?)?(?:Z))$"
                },
                "publicUrl": {
                  "type": "string",
                  "format": "uri"
                },
                "recordUrl": {
                  "type": "string",
                  "format": "uri"
                }
              },
              "additionalProperties": false
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-08-04 13:26Z
Last indexed by Roundhouse
2026-09-03 13:20Z
Last enriched (probe, favicon, geo)
2026-09-22 17:15Z
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. 11 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 StableVoice 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=StableVoice'
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://stablevoice.dev/api/recording-tokens, 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.