speech

Text to speech: send text, get a natural voiceover MP3 back in the same response.

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), a choice of ElevenLabs narrators, 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.

UNRATEDListed

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.04 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0xae393a9c…f3d2b42c

URL

https://www.trezalabs.com/api/x402/speech

MCP server on this host: io.github.treza-labs/treza

Seen

first 10 days ago · last 10 hr ago

19 free handshakes

Payment

Pays through

x402

Offered on?

Base USDC, Solana

Listed on?

Base, Solana

Score, from free handshakes onlyweights 2026.09.6

UN
RATED

0.570 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held back by sample size, not by the seller · gap to 1.000 is 0.430: 0.230 uncertain ? + 0.200 short ? · 0.080 to C

How the composite of 0.570 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
livenesscosts the most it answered at all	0.60	1.00	0.616		0.370	0	−0.230
latency p95 it answered as fast as its class	0.20	0.00	0.000		0.000	−0.200	0
price stability the price stayed where it was listed	0.20	1.00	1.000		0.200	0	0
Composite	1.00		0.570	gap to 1.000 = 0.430 · 0.200 short · 0.230 uncertain	0.570	−0.200	−0.230

Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check

The multiplication, written out

  0.600 × 0.616   liveness       
+ 0.200 × 0.000   latency p95    
+ 0.200 × 1.000   price stability
= 0.570           → UNRATED: 16 of 30 paid calls      weights 2026.09.6 · 16 samples · seed cap_01M38Z42VJJSQ4SCY49C7131GV|2026-09-03T08:05:28.550Z|2026.09.6

Verify it yourselfnpx teppi-check https://www.trezalabs.com/api/x402/speechcurl -s https://api.teppi.xyz/v1/trust/cap_01M38Z42VJJSQ4SCY49C7131GV