Ausca Transcription
Ausca is infrastructure agents can buy: metered APIs and MCP services without accounts or provider API keys, with explicit pricing and verifiable receipts.
MediaLiveeip155:8453Exactvia cdp
Audio-to-textMediaSpeech-to-textTranscriptionVideo-transcription
Calls · 30d
33↑ 471%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 18 snapshots so far.
$1,315.92
Verified settled volume
311 settlements proven x402 by their on-chain EIP-3009 marker.
$0.400
Listed price
As published in the catalog. Always read the live 402 before paying.
38
Calls · 30d
Upstream's own call count for this endpoint, not ours.
16
Unique payers · 30d
Last called 2026-09-24 17:11Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x26572ff23c6c52bfb1a69cb0c9114a8be443b422The 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.
{
"code": "payment_required",
"status": "error",
"message": "Payment authority is required."
}Accepts
The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.
0.4USDC≈ $0.4 USD
on Base · exact scheme
Pay 0.4 USDC on Base to 0x2657…3b422. The signed payment is good for 1 minute.
- Paid to
- 0x2657…3b422
- USD Coin contract
- 0x8335…02913
- Payment window
- 1 minute
- As published
- 400000 smallest units
The catalog’s raw entry
[
{
"asset": "0x833589fcd6edb6e08f4c7c32d4f71b54bda02913",
"extra": {
"name": "USD Coin",
"version": "2",
"decimals": 6,
"assetTransferMethod": "eip3009"
},
"payTo": "0x26572ff23c6c52bfb1a69cb0c9114a8be443b422",
"amount": "400000",
"scheme": "exact",
"network": "eip155:8453",
"maxTimeoutSeconds": 60
}
]Extensions
{
"bazaar": {
"info": {
"input": {
"body": {
"input": {
"artifact": {
"media_type": "audio/mpeg",
"artifact_ref": "runx:artifact:sha256:8888888888888888888888888888888888888888888888888888888888888888",
"content_digest": "sha256:9999999999999999999999999999999999999999999999999999999999999999"
},
"media_format": "mp3",
"language_code": "en-AU"
},
"offer_id": "media.transcription",
"offer_revision": "transcription-bytes-r7",
"idempotency_key": "ausca-x402-discovery-example",
"input_schema_digest": "sha256:7104c2ab18922a8af6556e1db88de929bc93338520758702c1aa7c59e311681e",
"output_schema_digest": "sha256:e49c0818147668b6e69e4f16d500cb40dc9f3831d8fad9ddf1809be631a9d436",
"offer_revision_digest": "sha256:0cafa81ab1948b57713a28613490fa52f551a1db4c96e3140b85dd265e7ba7ab"
},
"type": "http",
"method": "POST",
"bodyType": "json"
},
"output": {
"type": "json",
"example": {
"status": "accepted",
"invocation": {
"state": "succeeded",
"output": {
"text": "Hello from Ausca.",
"schema": "ausca.transcription.output.v1",
"segments": [
{
"text": "Hello from Ausca.",
"end_seconds": 2,
"start_seconds": 0.5
}
],
"language_code": "en-AU",
"source_digest": "sha256:9999999999999999999999999999999999999999999999999999999999999999"
},
"updated_at": "2026-01-01T00:00:00Z",
"receipt_ref": {
"uri": "runx:receipt:discovery-example",
"type": "receipt",
"public_url": "https://runx.ai/r/0000000000000000000000000000000000000000000000000000000000000000"
},
"invocation_id": "ausca-discovery-example",
"output_digest": "sha256:316f092e09cd48df9c983e9457cae065819033c57baab6ed16bf2a12837b7cfa",
"offer_revision_digest": "sha256:0cafa81ab1948b57713a28613490fa52f551a1db4c96e3140b85dd265e7ba7ab"
},
"inspect_url": "/v1/invocations/ausca-discovery-example"
}
}
},
"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": [
"offer_id",
"offer_revision",
"offer_revision_digest",
"input_schema_digest",
"output_schema_digest",
"input",
"idempotency_key"
],
"properties": {
"input": {
"type": "object",
"oneOf": [
{
"properties": {
"artifact": {
"properties": {
"media_type": {
"const": "audio/amr"
}
}
},
"media_format": {
"const": "amr"
}
}
},
{
"properties": {
"artifact": {
"properties": {
"media_type": {
"const": "audio/flac"
}
}
},
"media_format": {
"const": "flac"
}
}
},
{
"properties": {
"artifact": {
"properties": {
"media_type": {
"const": "audio/mp4"
}
}
},
"media_format": {
"const": "m4a"
}
}
},
{
"properties": {
"artifact": {
"properties": {
"media_type": {
"const": "audio/mpeg"
}
}
},
"media_format": {
"const": "mp3"
}
}
},
{
"properties": {
"artifact": {
"properties": {
"media_type": {
"enum": [
"audio/mp4",
"video/mp4"
]
}
}
},
"media_format": {
"const": "mp4"
}
}
},
{
"properties": {
"artifact": {
"properties": {
"media_type": {
"const": "audio/ogg"
}
}
},
"media_format": {
"const": "ogg"
}
}
},
{
"properties": {
"artifact": {
"properties": {
"media_type": {
"const": "audio/wav"
}
}
},
"media_format": {
"const": "wav"
}
}
},
{
"properties": {
"artifact": {
"properties": {
"media_type": {
"enum": [
"audio/webm",
"video/webm"
]
}
}
},
"media_format": {
"const": "webm"
}
}
}
],
"required": [
"artifact",
"media_format",
"language_code"
],
"properties": {
"artifact": {
"allOf": [
{
"type": "object",
"required": [
"artifact_ref",
"content_digest",
"media_type"
],
"properties": {
"media_type": {
"type": "string",
"maxLength": 200,
"minLength": 1
},
"artifact_ref": {
"type": "string",
"maxLength": 512,
"minLength": 1
},
"content_digest": {
"type": "string",
"pattern": "^sha256:[a-f0-9]{64}$"
}
},
"additionalProperties": false
},
{
"properties": {
"media_type": {
"enum": [
"audio/amr",
"audio/flac",
"audio/mp4",
"audio/mpeg",
"audio/ogg",
"audio/wav",
"audio/webm",
"video/mp4",
"video/webm"
]
}
}
}
]
},
"media_format": {
"enum": [
"amr",
"flac",
"m4a",
"mp3",
"mp4",
"ogg",
"wav",
"webm"
],
"type": "string"
},
"language_code": {
"enum": [
"ab-GE",
"af-ZA",
"am-ET",
"ar-AE",
"ar-SA",
"ast-ES",
"az-AZ",
"ba-RU",
"be-BY",
"bg-BG",
"bn-IN",
"bs-BA",
"ca-ES",
"ckb-IQ",
"ckb-IR",
"cs-CZ",
"cy-GB",
"cy-WL",
"da-DK",
"de-CH",
"de-DE",
"el-GR",
"en-AB",
"en-AU",
"en-GB",
"en-IE",
"en-IN",
"en-NZ",
"en-US",
"en-WL",
"en-ZA",
"es-ES",
"es-MX",
"es-US",
"et-EE",
"et-ET",
"eu-ES",
"fa-AF",
"fa-IR",
"fi-FI",
"fr-CA",
"fr-FR",
"ga-IE",
"gd-GB",
"gl-ES",
"gu-IN",
"ha-NG",
"he-IL",
"hi-IN",
"hr-HR",
"ht-HT",
"hu-HU",
"hy-AM",
"id-ID",
"is-IS",
"it-IT",
"ja-JP",
"jv-ID",
"ka-GE",
"kab-DZ",
"kk-KZ",
"km-KH",
"kn-IN",
"ko-KR",
"ky-KG",
"lg-IN",
"lt-LT",
"lv-LV",
"mhr-RU",
"mi-NZ",
"mk-MK",
"ml-IN",
"mn-MN",
"mr-IN",
"ms-MY",
"mt-MT",
"my-MM",
"ne-NP",
"nl-NL",
"no-NO",
"or-IN",
"pa-IN",
"pl-PL",
"ps-AF",
"pt-BR",
"pt-PT",
"ro-RO",
"ru-RU",
"rw-RW",
"si-LK",
"sk-SK",
"sl-SI",
"so-SO",
"sq-AL",
"sr-RS",
"su-ID",
"sv-SE",
"sw-BI",
"sw-KE",
"sw-RW",
"sw-TZ",
"sw-UG",
"ta-IN",
"te-IN",
"th-TH",
"tl-PH",
"tr-TR",
"tt-RU",
"ug-CN",
"uk-UA",
"uz-UZ",
"vi-VN",
"wo-SN",
"zh-CN",
"zh-HK",
"zh-TW",
"zu-ZA"
],
"type": "string"
}
},
"additionalProperties": false
},
"offer_id": {
"const": "media.transcription"
},
"offer_revision": {
"const": "transcription-bytes-r7"
},
"idempotency_key": {
"type": "string",
"maxLength": 128,
"minLength": 16
},
"input_schema_digest": {
"const": "sha256:7104c2ab18922a8af6556e1db88de929bc93338520758702c1aa7c59e311681e"
},
"output_schema_digest": {
"const": "sha256:e49c0818147668b6e69e4f16d500cb40dc9f3831d8fad9ddf1809be631a9d436"
},
"offer_revision_digest": {
"const": "sha256:0cafa81ab1948b57713a28613490fa52f551a1db4c96e3140b85dd265e7ba7ab"
}
},
"additionalProperties": false
},
"type": {
"type": "string",
"const": "http"
},
"method": {
"enum": [
"POST"
],
"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": [
"status",
"invocation",
"inspect_url"
],
"properties": {
"status": {
"const": "accepted"
},
"invocation": {
"type": "object",
"required": [
"invocation_id",
"offer_revision_digest",
"state",
"updated_at"
],
"properties": {
"state": {
"enum": [
"admitted",
"running",
"succeeded",
"failed",
"cancellation_requested",
"cancelled"
],
"type": "string"
},
"output": {
"type": "object",
"required": [
"schema",
"source_digest",
"language_code",
"text",
"segments"
],
"properties": {
"text": {
"type": "string",
"maxLength": 8000000,
"minLength": 1
},
"schema": {
"const": "ausca.transcription.output.v1"
},
"segments": {
"type": "array",
"items": {
"type": "object",
"required": [
"start_seconds",
"end_seconds",
"text"
],
"properties": {
"text": {
"type": "string",
"maxLength": 8000000,
"minLength": 1
},
"end_seconds": {
"type": "number",
"minimum": 0,
"exclusiveMaximum": 1000000
},
"start_seconds": {
"type": "number",
"minimum": 0,
"exclusiveMaximum": 1000000
}
},
"additionalProperties": false
},
"maxItems": 100000
},
"language_code": {
"type": "string"
},
"source_digest": {
"type": "string",
"pattern": "^sha256:[a-f0-9]{64}$"
}
},
"additionalProperties": false
},
"updated_at": {
"type": "string",
"format": "date-time"
},
"receipt_ref": {
"type": "object",
"required": [
"type",
"uri"
],
"properties": {
"uri": {
"type": "string",
"maxLength": 512,
"minLength": 1
},
"type": {
"const": "receipt"
},
"public_url": {
"type": "string",
"format": "uri",
"pattern": "^https://[^?#]+/r/[a-f0-9]{64}$",
"maxLength": 2048
}
}
},
"invocation_id": {
"type": "string",
"pattern": "^[A-Za-z0-9][A-Za-z0-9._:-]*$",
"maxLength": 128,
"minLength": 1
},
"output_digest": {
"type": "string",
"pattern": "^sha256:[a-f0-9]{64}$"
},
"offer_revision_digest": {
"const": "sha256:0cafa81ab1948b57713a28613490fa52f551a1db4c96e3140b85dd265e7ba7ab"
}
}
},
"inspect_url": {
"type": "string",
"pattern": "^/v1/invocations/[A-Za-z0-9][A-Za-z0-9._:-]*$"
}
}
}
}
}
}
}
}
}Provenance
- Seen in the source catalog
- 2026-09-24 17:11Z
- Last indexed by Roundhouse
- 2026-09-25 04:10Z
- Last enriched (probe, favicon, geo)
- 2026-09-14 16:46Z
- x402 version
- 2
- Max timeout
- 60s
- Liveness probe
- HTTP 402
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. 18 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.
Show the promptHide the prompt
Using Roundhouse, look up the x402 service Ausca Transcription 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=Ausca%20Transcription' 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://ausca.com/v1/transcribe-media, 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.