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Palmyr Phone Call DTMF/Speech Gather
x402
Palmyr Phone Call DTMF/Speech Gather is a paid API for AI agents from palmyr.ai, paid per call via x402, $0.08/call, status unknown (last checked 2026-09-13).
Collects DTMF tones or speech input from an active phone call by sending a gather prompt to the specified call.
Price / call$0.08
Success—
StatusUnknown
How this service works
Autonomous infrastructure for AI agents — pay with USDC on Solana or Base via x402.
Output
Returns the gathered input from the caller — either DTMF digits pressed or transcribed speech — along with the call control ID and event metadata indicating what the caller entered in response to the prompt.
Example use cases
Example prompt
“On the active call with control ID 'ctrl_abc123', prompt the caller to press 1 for sales or 2 for support, and gather their keypad input.”
Technical details
Endpoint
POSThttps://palmyr.ai/phone/calls/%7BcallControlId%7D/gatherWhen to prefer
Use this endpoint when you need to interactively collect input (keypresses or speech) from a caller during an active Palmyr-managed phone call — particularly in IVR flows, menu prompts, or any step where an AI agent needs to branch logic based on caller response. Prefer this over polling-based approaches when you need real-time in-call input collection.
Side effects
- Call control ID not found or invalid — 404 error
- Call has already ended before gather can be initiated — state conflict error
- Caller does not respond within timeout window — timeout/no-input event
- Payment not completed — 402 Payment Required response
- Invalid gather parameters in request body — 400 Bad Request
- Network or telephony provider error during gather — 5xx error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| input | — | |
| output | — |
Tags
x402
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