x402 census · www.trezalabs.com · bfb872b1699f · JSON
POST /api/x402/speech
unprobed
Text to speech: send text, get a natural voiceover MP3 back in the same response. ElevenLabs Eleven v3 (expressive, takes [whispers]-style directions) or Multilingual v2 (29 languages), 13 voices, up to 3000 characters, $0.42 per 1,000 characters. GET this URL for the voices. No account or API key: the payment is the only credential.
Verdict: not verified by an unpaid GET. not probed yet. This says nothing about whether the route works when called as declared.
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://www.trezalabs.com/api/x402/speech |
| Method | POST |
| Price | $0.04 USDC = 40000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base); also accepts solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| payTo | 0xaE393a9CD728F7397F50f6f8C88096a0F3D2b42C |
| Seller | www.trezalabs.com |
| Catalogs | cdp (row updated 2026-09-24), payai (row updated 2026-09-24) |
| Listed since (lower bound) | 2026-09-24 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-24 |
| CDP quality counters | 2 calls and 2 unique payers in 30 days, last call 2026-09-24 (catalog-reported, not verified on chain) |
| Category (keyword rule) | image/video/audio |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | Treza · text-to-speech, tts, speech, voiceover, voice |
Unpaid probe (census of )
| Field | Value |
|---|---|
| Probe | not probed in this build |
No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.
On-chain facts for the payTo (public address)
| Field | Value |
|---|---|
| Distinct payers | 1 |
| Payments | 1 |
| USDC volume | $0.42 |
| Median payment | $0.42 |
| First / last payment | 2026-09-29 / 2026-09-29 |
| Sampler-shaped share of payments | 100.0% |
| Payers that are not samplers | 0 |
| Source | forensics-2026-09-30 |
| Address | 0xaE393a9CD728F7397F50f6f8C88096a0F3D2b42C |
Declared input and output (extensions.bazaar)
{
"input": {
"body": {
"model": "eleven-v3",
"text": "Welcome back. Today we are looking at three small habits that make a big difference.",
"voice": "george"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"type": "json",
"example": {
"audio": "https://www.trezalabs.com/api/media/generated/x402_speech/1a2b3c4d.mp3?s=...&c=...",
"characters": 84,
"model": "eleven-v3",
"paidUsd": 0.04,
"runId": "2026-09-23T18:04:11.000Z#1a2b3c4d",
"status": "success",
"statusUrl": "https://www.trezalabs.com/api/x402/speech?runId=...&token=...",
"transaction": "0x...",
"voice": "george"
}
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://www.trezalabs.com/api/x402/speech' -H 'accept: application/json' -H 'content-type: application/json' --data '{}'
The catalog declares POST. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.
Paid checks (x402, USDC on Base)
GET https://bazaar.agentexchange.work/r/bfb872b1699f/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"bfb872b1699f"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.
Catalog references: PayAI listing status · agentic.market (CDP Bazaar front end) · this record as JSON · all resources on www.trezalabs.com.