# KiteEndpoints.ai Speech-to-Text

> KiteEndpoints.ai Speech-to-Text is a paid API for AI agents from kite-solana.vercel.app, paid per call via x402, $0.09/call, status unknown (last checked 2026-09-13).

Converts spoken audio input into transcribed text via a pay-per-request API using USDC on Base chain

## Facts

- Endpoint: POST https://kite-solana.vercel.app/api/speech-to-text
- Price: $0.09/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kiteendpoints-ai-speech-to-text-4648fa96
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VSe1e09Vze6bOAvj-C0i4

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability kiteendpoints-ai-speech-to-text-4648fa96 -d '<json body>'
```

Example prompt: Can you transcribe this audio recording for me — take the speech in this file and turn it into written text?

## When to prefer this

Choose this endpoint when you need a quick, pay-per-request speech-to-text conversion without committing to a subscription, especially in an agentic workflow that already uses USDC on Base for micropayments. It is suitable for one-off or low-volume transcription tasks where cost predictability per call ($0.09 USDC) matters more than bulk pricing.

## Known failure modes

- Audio format not supported — endpoint may only accept specific audio file types or encodings
- Audio too long or file too large — may exceed processing limits
- Poor audio quality — background noise or unclear speech may produce inaccurate transcription
- Payment failure — insufficient USDC balance or invalid x402 payment header
- Network timeout for large audio files
- Unsupported language in audio may yield empty or garbled transcript

## How this service works

400+ paid API endpoints. Social media, AI, crypto, finance, weather, ecommerce, tools. Pay per request with USDC on Base chain.

## Output

Returns a JSON object with a result field containing the transcribed text extracted from the submitted audio, representing the spoken content converted to written form.

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "example": {
  "result": {
   "data": "example response"
  }
 },
 "properties": {
  "result": {
   "type": "object",
   "description": "API response data"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/kiteendpoints-ai-speech-to-text-4648fa96/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kite-solana.vercel.app](https://www.zero.xyz/host/kite-solana.vercel.app/llms.txt)