Saperly

Active

by Monid

Phone numbers, AI voice calls, SMS for agents.

Communications

Endpoints · 2

x402 URLhttps://x402.monid.ai/v1/run
GET/list-languages$0.01List the spoken languages an assistant can use (code + name).
GET/list-voices$0.01List the TTS voices an assistant can speak with (id, name, gender, language).

Call the provider directly and settle x402 per request.

Quickstart · x402 flow

1 · Call without payment. The service replies 402

bash
curl -i https://x402.monid.ai/v1/run \  -H "Content-Type: application/json" \  -d '{"provider": "saperly", "endpoint": "/list-languages", "input": {}}'
Response
HTTP/1.1 402 Payment Required{ "x402Version": 2,  "accepts": [{ "scheme": "exact", "network": "eip155:143",  "asset": "USDC", "maxAmountRequired": "0.01" }] }

2 · Sign the payment with your agent wallet and retry

bash
curl https://x402.monid.ai/v1/run \  -H "X-PAYMENT: <base64 payment payload signed by your EOA>" \  -H "Content-Type: application/json" \  -d '{"provider": "saperly", "endpoint": "/list-languages", "input": {}}'
Response
HTTP/1.1 200 OK

Any EOA on Monad can pay. curl shown; language tabs land in v2.

Any APIs or tools listed are provided for discovery purposes only and do not constitute an endorsement or recommendation by the Monad Foundation.