Endpoint · computePOSTx402.agentutility.ai/voice

Turn written text into spoken audio you can drop straight into a player or app.

Turn written text into spoken audio you can drop straight into a player or app. Send text (up to 4,000 characters) with an optional voice, model, speed, and output format of mp3, wav, opus, aac, or flac, and get back a hosted audio_url plus file size and content type, no base64 handling required. Runs on Venice's text-to-speech models with 30+ selectable voices and adjustable playback speed from 0.25x to 4x. Use it as a text-to-speech API, voice synthesis tool, or narration generator for voiceovers, IVR prompts, or accessibility read-aloud features.

UNRATEDListed

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.05 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x6c0752c0…9ebb5621

URL

https://x402.agentutility.ai/voice

Seen

first 29 days ago · last 2 days ago

54 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

0.511 liveness verified, no letter

To a letter · 30 paid calls

0 of 30

Held down by liveness · gap to 1.000 is 0.489: 0.097 uncertain ? + 0.392 short ? · 0.139 to C

How the composite of 0.511 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
livenesscosts the most it answered at all	0.60	0.68	0.519		0.311	−0.192	−0.097
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		0.511	gap to 1.000 = 0.489 · 0.392 short · 0.097 uncertain	0.511	−0.392	−0.097

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

The multiplication, written out

  0.600 × 0.519   liveness       
+ 0.200 × 0.000   latency p95    
+ 0.200 × 1.000   price stability
= 0.511           → UNRATED: 52 of 30 paid calls      weights 2026.09.6 · 52 samples · seed cap_01M1RD980ZBJF5615M2N5VF632|2026-09-03T10:42:21.759Z|2026.09.6

Verify it yourselfnpx teppi-check https://x402.agentutility.ai/voicecurl -s https://api.teppi.xyz/v1/trust/cap_01M1RD980ZBJF5615M2N5VF632