# 402 Coffee — x402 Tip Jar (gbs)

> 402 Coffee — x402 Tip Jar (gbs) is a paid API for AI agents from 402coffee.com, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-15).

Sends a non-custodial USDC tip directly to a creator's wallet via the x402 HTTP payment protocol, with optional tier or custom amount.

## Facts

- Endpoint: GET https://402coffee.com/t/gbs
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/402-coffee-x402-tip-jar-gbs-3d89ff9b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mf-r_LRwcmJt0OgYvrAtl

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 402-coffee-x402-tip-jar-gbs-3d89ff9b
```

Example prompt: Send a coffee-sized tip to gbs on 402 Coffee — use the 'coffee' tier.

## When to prefer this

Use this endpoint when an AI agent or human wants to send a small USDC tip directly to the creator 'gbs' via the x402 protocol without intermediaries — ideal for agentic micropayment flows, creator support, or pay-per-interaction scenarios where non-custodial, on-chain settlement is required.

## Known failure modes

- Payment below creator's minimum tip amount — request rejected or clamped
- Invalid tier key provided — falls back to default amount or returns error
- Insufficient USDC balance in payer's wallet — transaction fails
- x402 protocol handshake failure — HTTP 402 returned without settlement
- Network or on-chain congestion causing delayed settlement

## How this service works

Non-custodial x402 tip jars for the agentic web. Humans tip with a signature, agents tip over HTTP or MCP, USDC settles straight to the creator's wallet.

## Output

A payment confirmation indicating the USDC tip has been submitted and settled to the creator's (gbs) wallet, with details about the amount and tier used.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "tier": {
   "type": "string",
   "description": "Tier key (e.g. tokens, coffee, beer); overrides amount."
  },
  "amount": {
   "type": "number",
   "description": "USD tip amount (clamped to the creator's min/max)."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/402-coffee-x402-tip-jar-gbs-3d89ff9b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 402coffee.com](https://www.zero.xyz/host/402coffee.com/llms.txt)