x402 List

x402 Protocol Service Directory

x402 Shop ASR Audio Services

AI ✓ VERIFIED

verified until 2026-08-17

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 + summary, from $0.10/30-min block) and transcript (transcript only, from $0.06/30-min block). Exact USDC price quoted in the 402 challenge; pay per job on Base.

Pay from $0.30 per request in USDC on Base, settled onchain via the x402 protocol, no signup, no API key needed.

listed 2026-08-09 · no on-chain settlement recorded yet

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

ASSESSMENT

updated 5h ago

Evidence-backed signals, not a single score. Click any chip for the proof. Measured values stay read-only; unknown is honest.

reliability 100%
uptime 24h
-
uptime 7d
-
uptime 30d
-
uptime 90d
-
response p95
850ms
avg response
850ms
total checks
1

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

compliance A (14/14)

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

jump to compliance checklist

price $0.10 (p74 in AI)
price (min)
$0.10
category percentile (min)
p74 in AI
endpoints / prices
1 / 1
model
flat
stability
100%
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
48d
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
first settlement
---
last settlement
---
top buyer share
-
trend 7d vs 30d
-
networks
eip155:8453
volume all-time
$0
settlements all-time
0
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 a concentration signal, not part of the ranking score.

CHANGES

1 event, detecting since 2026-07-24

Payout, price, and schema changes detected on this service's x402 wire. A payout rotation at an unchanged price shows up here even when nothing else moves. Full feed at /changes.

changes price changed 36m ago (1 since 2026-07-24)

price changed · 36m ago

POST /v1/terminal/asr · eip155:8453 · USDC: 100000300000

Amounts are on-wire atomic units in the named asset.

see all changes for this service

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 $0.30 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": "300000",
        "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, from $0.30/1-hr) or transcript only (audio URL, from $0.18/1-hr). Send feed or audio_url for your exact 402.",
      "serviceName": "asr-synthesis-v1"
    },
    "extensions": {
      "bazaar": {
        "info": {
          "tags": [
            "asr",
            "audio",
            "transcription",
            "speech-to-text",
            "podcast",
            "summarization",
            "x402"
          ],
          "input": {
            "body": {
              "content": "ASR audio services: transcribe a podcast feed or any audio URL. mode=synthesis adds an AI summary (thesis, key points, verbatim quotes, takeaways), mode=transcript returns a clean timestamped transcript only. Send feed (RSS) or audio_url (direct https media) plus max_eps. Flat block-priced from duration (1-hr blocks); exact USDC in the 402.",
              "pack_id": "default"
            },
            "type": "http",
            "method": "POST",
            "bodyType": "json"
          },
          "output": {
            "type": "json",
            "example": {
              "job_id": "00000000-0000-0000-0000-000000000000",
              "status": "running"
            }
          },
          "resource_name": "ASR Podcast Synthesis & Audio Transcription"
        },
        "schema": {
          "type": "object",
          "$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
08-09 · uptime 100.0% · 920ms avg08-10 · uptime 100.0% · 858ms avg08-0908-10
7d UPTIME 100%
RESPONSE TIME
08-09 · 920ms avg08-09 · 920ms avg08-10 · 858ms avg08-10 · 858ms avg08-0908-10
AVG RESP 881ms
PRICE (captured 402, USD)
08-09 · $0.1008-10 · $0.30$0.3008-0908-10
SUB-SCORES (uptime + x402 compliance)
building assessment history (1 day so far)

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

VOLUME (on-chain settlement, USD)
building volume history (1 day so far)
DISTINCT BUYERS
building buyer history (1 day so far)

COMPLIANCE

14/14 checks pass · grade A

last 402 captured 2026-08-10 · last up 2026-08-10

  • 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
● OK 698ms
● OK 734ms
● OK 867ms
● OK 774ms
● OK 1321ms
● OK 944ms
● OK 1172ms
● OK 967ms
● OK 420ms
● OK 1141ms
● OK 602ms
● OK 652ms
● OK 967ms
● OK 526ms
● OK 985ms
● OK 390ms
● SLOW 1339ms
● SLOW 1383ms

EMBED THIS BADGE

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x402 Shop ASR Audio Services listed on x402-list
status
x402 Shop ASR Audio Services uptime on x402-list
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</a>
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</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.

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