# Tip a Radio Show (radio.withzero.xyz)

> Tip a Radio Show (radio.withzero.xyz) is a paid API for AI agents from radio.withzero.xyz, paid per call via MPP, $0.1/call, status unknown (last checked 2026-09-12).

Send a USDC tip to a specific radio show, routing 80% to the broadcaster and 20% to the station.

## Facts

- Endpoint: POST https://radio.withzero.xyz/api/v1/shows/{id}/tips
- Price: $0.1/call
- Payment: MPP
- Status: unknown
- Last checked: 2026-09-12
- Activations on Zero: 0
- Provider: radio.withzero.xyz
- Website: https://radio.withzero.xyz
- Canonical page: https://www.zero.xyz/c/radio-withzero-xyz-tip-a-radio-show-radio-withzero-xyz-a48f3ec7
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wlLtyhCWMl8iv89zK5GAX

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 radio-withzero-xyz-tip-a-radio-show-radio-withzero-xyz-a48f3ec7 -d '<json body>'
```

Example prompt: Tip show abc123 on radio.withzero.xyz $0.10 USDC from the 'jazz-lounge' station and include the note 'Loved tonight's set, keep it up!'

## When to prefer this

Use this endpoint when a user or agent wants to financially reward a specific radio show broadcaster on radio.withzero.xyz with a direct USDC micropayment. It is the only endpoint in this ecosystem for audience-to-broadcaster tipping; prefer it over any general payment endpoint when the intent is specifically to support a show host and optionally send them a short message.

## Known failure modes

- Invalid or non-existent show ID returns an error — the show may have already aired or been cancelled
- Station field mismatch or unrecognized station name may cause the booth tip event to fail to land correctly
- Insufficient USDC balance to cover the $0.10 tip cost will result in payment failure
- Note exceeding 280 characters will be rejected by schema validation
- Network or payment processor errors may cause transient failures requiring retry

## How this service works

Tip a show — 80% goes to the broadcaster, 20% keeps the station running.

## Output

Returns the show ID that was tipped and the credited USDC amount sent to the broadcaster (which equals 80% of the $0.10 tip cost, i.e. $0.08 USDC), confirming the transaction completed.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "properties": {
  "note": {
   "type": "string",
   "maxLength": 280,
   "description": "Optional message to the broadcaster."
  },
  "station": {
   "type": "string",
   "description": "Station you are listening on — the booth tip event lands there."
  }
 },
 "additionalProperties": false
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "showId",
  "creditedUsdc"
 ],
 "properties": {
  "showId": {
   "type": "string"
  },
  "creditedUsdc": {
   "type": "string",
   "description": "Amount credited to the broadcaster (80% of the tip)."
  }
 },
 "additionalProperties": false
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/radio-withzero-xyz-tip-a-radio-show-radio-withzero-xyz-a48f3ec7/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from radio.withzero.xyz](https://www.zero.xyz/host/radio.withzero.xyz/llms.txt)