# GM Farcaster On-Air Shoutout

> GM Farcaster On-Air Shoutout is a paid API for AI agents from gateway.gmfarcaster.com, paid per call via x402, $5/call, status unknown (last checked 2026-10-20).

Submits a paid sponsor shoutout script to be read live on the GM Farcaster livestream show

## Facts

- Endpoint: POST https://gateway.gmfarcaster.com/v1/shoutout?utm_source=zero.xyz
- Price: $5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/gm-farcaster-on-air-shoutout-efd00955
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_yuWDnnQHli4eOBTcZJRNW

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 gm-farcaster-on-air-shoutout-efd00955 -d '<json body>'
```

Example prompt: Submit a $5 USDC shoutout on the GM Farcaster livestream for my project — sponsor name is 'Zora Network', the read text should be: 'Zora Network is the easiest way to mint and collect NFTs on Base — check it out at zora.co', and include the link https://zora.co.

## When to prefer this

Choose this endpoint when you want to reach the GM Farcaster livestream audience with a spoken on-air sponsor mention — ideal for Web3 projects, Farcaster-native apps, NFT drops, or DeFi protocols targeting crypto-native viewers. It is purpose-built for scripted live reads on this specific show, not general social media posting or ad placement.

## Known failure modes

- Request declined by GM Farcaster team — refund issued to the payer wallet or the specified refund_to_wallet address
- read_text exceeds 280 characters — validation error returned
- Payment of $5 USDC fails or is not confirmed on-chain — request not submitted
- Invalid URL format in the url field — schema validation error
- sponsor_name exceeds 120 characters — validation error

## How this service works

Request an On-Air Shoutout read on the GM Farcaster livestream

## Output

A confirmation that the shoutout request has been received and queued for the GM Farcaster team to review. If the request is declined, a refund is issued to the payer wallet. Internal notes and contact details are passed to the GM Farcaster team privately and never read on air.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "url": {
   "type": "string",
   "format": "uri",
   "description": "Optional link to include or reference for the sponsor."
  },
  "notes": {
   "type": "string",
   "description": "Optional internal notes for the GM Farcaster team. Never read on air."
  },
  "contact": {
   "type": "object",
   "properties": {
    "x": {
     "type": "string"
    },
    "email": {
     "type": "string"
    },
    "farcaster": {
     "type": "string"
    }
   },
   "description": "Optional contact details for follow-up about the read."
  },
  "read_text": {
   "type": "string",
   "maxLength": 280,
   "description": "The script read live on air. Keep it tight — read aloud on the show."
  },
  "sponsor_name": {
   "type": "string",
   "maxLength": 120,
   "description": "The name of the sponsor or project to credit on air."
  },
  "refund_to_wallet": {
   "type": "string",
   "description": "Optional wallet override to receive a refund if the request is declined. Defaults to the verified on-chain payer."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/gm-farcaster-on-air-shoutout-efd00955/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from gateway.gmfarcaster.com](https://www.zero.xyz/host/gateway.gmfarcaster.com/llms.txt)