x402 List

x402 Protocol Service Directory

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x402 Shop ASR Audio Services

AI

payment-ready 2026-08-25, probe currently failing

ASR audio services: transcribe a podcast feed (RSS) or any direct audio URL into a clean timestamped transcript, optionally with an AI summary (thesis, key points, verbatim quotes). Two modes: synthesis (transcript + AI summary) and transcript (transcript only). Flat block pricing in 1-hr blocks: synthesis $0.30/hr, transcript $0.18/hr; price scales linearly with audio duration. Exact USDC price quoted in the 402 challenge; pay per job on Base.

Pay from $0.01 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

measured since 2026-07-16 (start of our harvest window) · $3.32 all-time · last settled 2026-08-24

BASE URL https://x402.stan01.xyz │ WEBSITE https://x402.stan01.xyz │ ENDPOINTS 1 │ NETWORK Base │ ASSET USDC │ MEMBER SINCE 2026-08-09 │ MONITORED SINCE 2026-08-09

VERDICT

ranking generation 3

Not ranked yet: this listing was not in the ranked pool for AI the last time we built it, which happens at most once a minute. A service listed moments ago enters at the next rebuild.

ALTERNATIVES IN AI

Other AI services in this directory, ordered by the same measured score. The figures are ours: 30-day uptime from our own probes, 30-day settlement volume read on-chain (a conservative undercount, and null where we cannot measure it, never a zero).

Ranked alternative x402 services in the same category, with band, measured score, 30-day uptime and 30-day on-chain settlement volume
SERVICE BAND SCORE UPTIME 30D VOL 30D
Otto AI strong 95 100% $55.89
NetIntel strong 94 100% $16.80
x402engine strong 93 100% $28.22
GlianaAI solid 93 100% $70.06
Agent402.tools solid 92 99.7% $141.04
5 of 162 other ranked services in AI · see the whole category

ASSESSMENT

updated 5h ago

The parts the verdict above is computed from, each with its proof. Click any chip. Measured values stay read-only; unknown is honest, and an unknown is never counted as a zero.

reliability 0%
uptime · latest daily rollup
0%
uptime 7d
0%
uptime 30d
0%
uptime 90d
67.8%
response p95
-
avg response
-
total checks
122

Measured on the unpaid 402 handshake, not the paid call. A service can 402 correctly and still fail after payment.

compliance A (14/14), stale (probe failing)

14 of 14 x402 conformance checks pass. Full checklist below.

jump to compliance checklist

price $0.01 (p49 in AI)
price (min)
$0.01
category percentile (min)
p49 in AI
endpoints / prices
1 / 1
model
flat
stability
0%
risk clean

No deterministic risk flag. Risk fires only on an exact blocklist match, or a reserved-brand name with a mismatched verified payTo. Never from low uptime, a high price, or a model guess.

domain age
98d
registrar
Porkbun LLC
hosting
custom
domain created
2026-06-22

Identity facts, not a risk score.

traction $0.00 30d · 0 buyers
volume 30d
$0.00
buyers 30d
0
settlements 30d
0
measured since
2026-07-16 (start of our harvest window)
last settlement
2026-08-24
top buyer share
-
trend 7d vs 30d
-
networks
eip155:8453
volume all-time
$3.32
settlements all-time
11
median settlement 30d
-
max settlement 30d
-
settled via
-

Conservative undercount: only USDC settlements via facilitators we measure are counted. A measured floor, not an estimate.

Top buyer share is part of the ranking score: a higher share lowers the traction part of the score, by up to half when one address holds all 30d volume.

WHAT IT DOES

ai-derived

No AI synthesis has been produced for this service yet.

ENDPOINTS

Service endpoints with HTTP method, path, description, pricing, and network
METHOD PATH DESCRIPTION PRICE NETWORK ASSET 402 CHANNEL
POST /v1/terminal/asr $0.01 Base USDC header
1 endpoints

REQUEST / RESPONSE EXAMPLE

An unpaid request to POST /v1/terminal/asr returns HTTP 402 with the payment terms. Settle onchain via your facilitator, then retry with the X-Payment header.

// request
curl -i -X POST 'https://x402.stan01.xyz/v1/terminal/asr'
// 402 response (captured by monitor) · 1 payload · click to expand
[
  {
    "error": "payment_required",
    "accepts": [
      {
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "payTo": "0xD36115f7C29D3b3e01d238FEeEF7549F0B2D8c3E",
        "amount": "10000",
        "scheme": "exact",
        "network": "eip155:8453",
        "maxTimeoutSeconds": 60
      }
    ],
    "resource": {
      "url": "https://x402.stan01.xyz/v1/terminal/asr",
      "tags": [
        "asr synthesis v1",
        "x402",
        "payment"
      ],
      "mimeType": "application/json",
      "description": "ASR: podcast feed or audio URL in → transcript + AI summary (synthesis) or transcript only (audio URL). MICRO pricing: ~$0.01 for a 2-min clip; $0.30/hr synthesis / $0.18/hr transcript. Send feed or audio_url for your exact 402.",
      "serviceName": "asr-synthesis-v1"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "tags": [
            "asr",
            "audio",
            "transcription",
            "speech-to-text",
            "podcast",
            "summarization",
            "x402"
          ],
          "input": {
            "body": {
              "content": "ASR audio services: transcribe a podcast feed or any audio URL. mode=synthesis adds an AI summary (thesis, key points, verbatim quotes, takeaways), mode=transcript returns a clean timestamped transcript only. Send feed (RSS) or audio_url (direct https media) plus max_eps. MICRO per-sec pricing (~$0.01 per 2-min clip; $0.30/hr synthesis, $0.18/hr transcript); exact USDC in the 402.",
              "pack_id": "default"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "job_id": "00000000-0000-0000-0000-000000000000",
              "status": "running"
            }
          },
          "resource_name": "ASR Podcast Synthesis & Audio Transcription (Whisper large-v3-turbo)"
        },
        "schema": {
          "type": "object",
          "$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": [],
                  "properties": {
                    "feed": {
                      "type": "string",
                      "format": "uri",
                      "description": "Podcast RSS URL (e.g. https://feeds.buzzsprout.com/1552180.rss)"
                    },
                    "mode": {
                      "enum": [
                        "synthesis",
                        "transcript"
                      ],
                      "type": "string",
                      "description": "synthesis = transcript + AI summary; transcript = transcript only"
                    },
                    "max_eps": {
                      "type": "integer",
                      "default": 1,
                      "maximum": 10,
                      "minimum": 1,
                      "description": "Max episodes (feed mode only)"
                    },
                    "audio_url": {
                      "type": "string",
                      "format": "uri",
                      "description": "Direct https URL to any audio file (single-file job)"
                    },
                    "duration_secs": {
                      "type": "integer",
                      "minimum": 1,
                      "description": "Audio duration in seconds (audio_url; optional, else estimated from Content-Length)"
                    }
                  }
                },
                "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",
                  "properties": {
                    "job_id": {
                      "type": "string"
                    },
                    "status": {
                      "type": "string"
                    }
                  }
                }
              }
            }
          }
        }
      }
    },
    "x402Version": 2
  }
]

OVER TIME

All charts use the 7d selector; each series spans only the dates it has data for. Every series is also served as JSON at /api/v1/services/x402-shop-asr-audio-services/price, /scores, /volume and /buyers. On-chain volume and distinct buyers are measured over the service's settlement address and are a conservative undercount (only settlements that reach a measured facilitator are counted). The on-chain series roll up hourly, so the latest day can be up to about an hour behind; distinct buyers are counted per payout address, so a service that settles to more than one address is an upper bound.

UPTIME
09-23 · uptime 0.0%09-24 · uptime 0.0%09-25 · uptime 0.0%09-26 · uptime 0.0%09-27 · uptime 0.0%09-28 · uptime 0.0%09-29 · uptime 0.0%09-23 · uptime 0.0%09-24 · uptime 0.0%09-25 · uptime 0.0%09-26 · uptime 0.0%09-27 · uptime 0.0%09-28 · uptime 0.0%09-29 · uptime 0.0%09-2309-29
7D UPTIME 0%
RESPONSE TIME
no data
AVG RESP ---
PRICE (captured 402, USD)
09-22 · $0.0109-29 · $0.01$0.0109-2209-29
SUB-SCORES (uptime + x402 compliance)
09-22 uptime: 43.1% compliance: 100% checks09-23 uptime: 3.0% compliance: 100% checks09-24 uptime: 0.0% compliance: 100% checks09-25 uptime: 0.0% compliance: 100% checks09-26 uptime: 0.0% compliance: 100% checks09-27 uptime: 0.0% compliance: 100% checks09-28 uptime: 0.0% compliance: 100% checks09-29 uptime: 0.0% compliance: 100% checksuptimecompliance09-2209-29

checklist grew 11->14 on 2026-07-28; a step here is a metric change, not a regression

PILLARS OVER TIME (measured)

Measured site and economics pillars from the assessment history, so the latest value shown elsewhere on this page reads as a point on a trend rather than a permanent state.

VOLUME (on-chain settlement, USD)
no on-chain volume yet
DISTINCT BUYERS
no distinct buyers yet

COMPLIANCE

14/14 checks pass · grade A · stale (probe failing)

last 402 captured 2026-08-11 · last up 2026-08-25

  • 402 payload captured
  • accepts[] array present
  • payTo address recoverable
  • payTo at accepts[0].payTo (conformant shape)
  • payTo is a valid on-chain address
  • atomic price declared
  • atomic price in a sane range
  • asset (token) address declared
  • network resolves to CAIP-2
  • payment scheme declared
  • served over HTTPS
  • declares the current x402 version (2)
  • EIP-712 domain parameters present on every EVM entry
  • x402 v2 envelope delivered in the payment-required header

SITE PILLARS

  • homepage reachable
  • openapi doc
  • pricing page
  • llms.txt
  • robots.txt
  • terms page
recent checks (18) live · click to expand
TIME STATUS RESP CAUSE
○ DOWN 499ms bad_status: unexpected HTTP 530
○ DOWN 1061ms bad_status: unexpected HTTP 530
○ DOWN 679ms bad_status: unexpected HTTP 530
○ DOWN 945ms bad_status: unexpected HTTP 530
○ DOWN 3859ms bad_status: unexpected HTTP 530
○ DOWN 168ms bad_status: unexpected HTTP 530
○ DOWN 1601ms bad_status: unexpected HTTP 530
○ DOWN 139ms bad_status: unexpected HTTP 530
○ DOWN 1293ms bad_status: unexpected HTTP 530
○ DOWN 897ms bad_status: unexpected HTTP 530
○ DOWN 458ms bad_status: unexpected HTTP 530
○ DOWN 210ms bad_status: unexpected HTTP 530
○ DOWN 1205ms bad_status: unexpected HTTP 530
○ DOWN 2195ms bad_status: unexpected HTTP 530
○ DOWN 1825ms bad_status: unexpected HTTP 530
○ DOWN 847ms bad_status: unexpected HTTP 530
○ DOWN 143ms bad_status: unexpected HTTP 530
○ DOWN 623ms bad_status: unexpected HTTP 530

EMBED THIS BADGE

Show that x402 Shop ASR Audio Services is monitored on x402-list. Paste this on your site or README, it links back to this live listing.

x402 Shop ASR Audio Services listed on x402-list
status
x402 Shop ASR Audio Services uptime on x402-list
live uptime
// HTML
<a href="https://x402-list.com/services/x402-shop-asr-audio-services?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/x402-shop-asr-audio-services.svg" alt="x402 Shop ASR Audio Services listed on x402-list" height="28">
</a>
// Markdown
[![x402 Shop ASR Audio Services on x402-list](https://x402-list.com/badge/x402-shop-asr-audio-services.svg)](https://x402-list.com/services/x402-shop-asr-audio-services?utm_source=badge&utm_medium=referral&utm_campaign=embed)
// HTML · live uptime variant
<a href="https://x402-list.com/services/x402-shop-asr-audio-services?utm_source=badge&utm_medium=referral&utm_campaign=embed">
  <img src="https://x402-list.com/badge/x402-shop-asr-audio-services.svg?data=uptime" alt="x402 Shop ASR Audio Services uptime on x402-list" height="28">
</a>

RUN THIS SERVICE?

Keep this listing accurate: propose changes to the name, description, website, category or add new endpoints to monitor. Ownership is verified with a domain proof and every change is reviewed manually; measured data stays read-only.

[ update this listing ]

Earn the verified tier: x402list pays a real call to this endpoint and, if it delivers, the service is delivery-verified. The fee covers the cost of the probe, not the badge; there is no refund if the call does not deliver. Agent and API only, no in-browser signing. See /api.

[ verify this service ($0.25) ]

To request delisting, email info@x402-list.com or update your listing at /services/x402-shop-asr-audio-services/update.