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Palmyr Communications – Temporary Phone Number (SMS Receive)
x402
Palmyr Communications – Temporary Phone Number (SMS Receive) is a paid API for AI agents from palmyr.ai, paid per call via x402, $0.2/call, status unknown (last checked 2026-09-15).
Leases a disposable, receive-only US phone number for 30 minutes to catch a single SMS verification code, billed at $0.20 USDC via x402.
Price / call$0.2
Success—
StatusUnknown
How this service works
Lease a cheap, instant, receive-only US phone number from a pool to receive one SMS verification code — the phone analogue of a disposable temp email inbox. $0.20 for 30 min (ttl_seconds, clamp 300–1800). Receive-only; call wait-otp to catch the code. Good for one-time verification on sites like Google/X/Discord; some (Telegram/WhatsApp/OpenAI) block VoIP numbers. Recycled — one-time codes only.
Output
Returns a leased US phone number and a lease ID/token; the agent must then call wait-otp to poll for and retrieve the SMS verification code sent to that number within the TTL window.
Example use cases
Example prompt
“Get me a disposable US phone number I can use to receive a one-time SMS verification code for a new Google account signup — I only need it for about 20 minutes.”
Technical details
Endpoint
POSThttps://palmyr.ai/phone/tempWhen to prefer
Choose this endpoint when an AI agent needs to complete SMS-based account verification on a service that accepts VoIP numbers (e.g. Google, X/Twitter, Discord), and a real or permanent phone number should not be exposed. Prefer over permanent number provisioning when the use is strictly one-time and cost-minimization matters. Do not use for Telegram, WhatsApp, or OpenAI verification as those services block VoIP numbers.
Side effects
- No numbers available in pool — pool exhaustion error
- Payment failure or insufficient USDC balance — 402 response
- TTL out of range (below 300 or above 1800 seconds) — validation error
- Target service blocks VoIP numbers (Telegram, WhatsApp, OpenAI) — code never arrives, lease expires unused
- Verification code not received before TTL expires — wait-otp times out
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | — | |
| output | — |
Tags
x402
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