# x402 Tip Jar — USDC Micropayment Acknowledgment on Base

> x402 Tip Jar — USDC Micropayment Acknowledgment on Base is a paid API for AI agents from code.mamenesia.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-10-11).

Accepts a small USDC micropayment tip via the x402 protocol on Base and returns a payment confirmation with optional note support.

## Facts

- Endpoint: POST https://code.mamenesia.com/service/tip-jar?utm_source=zero.xyz
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-tip-jar-usdc-micropayment-acknowledgment-on-base-5a223e7c
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pUtkyQexd_BQa0qiJSuOC

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 x402-tip-jar-usdc-micropayment-acknowledgment-on-base-5a223e7c -d '<json body>'
```

Example prompt: Send a 0.01 USDC tip to the code.mamenesia.com tip jar on Base via x402 and include the note 'great service, keep it up'.

## When to prefer this

Choose this endpoint when you need to send a small, verified USDC gratuity or acknowledgment payment via the x402 protocol on the Base network, particularly when testing x402 micropayment flows or tipping a developer tool service. Not appropriate for actual code generation, smart contract auditing, or diff review — those are separate sibling endpoints on the same domain.

## Known failure modes

- Payment not included or invalid x402 header — 402 Payment Required error
- Insufficient USDC balance on Base — transaction fails before confirmation
- Wrong network (not Base) — payment rejected
- Malformed note field (non-string) — 400 Bad Request
- Service temporarily unavailable — 5xx error

## How this service works

Pay-per-request AI developer tools in USDC on Base. Generate code, audit smart contracts, review diffs, summarize text, and convert data formats via the x402 payment standard. Powered by glm-5.2.

## Output

Returns a JSON object confirming payment receipt, including: ok (boolean), a thank-you message, the network ('base'), the service name ('tip-jar'), and the verified USDC amount ('0.01').

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "properties": {
      "note": {
       "type": "string"
      }
     },
     "additionalProperties": false
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "required": [
      "ok",
      "service",
      "message"
     ],
     "properties": {
      "ok": {
       "type": "boolean"
      },
      "message": {
       "type": "string"
      },
      "service": {
       "type": "string"
      }
     },
     "additionalProperties": true
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "message": "Thank you for the tip. x402 payment verified.",
  "service": "tip-jar"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-tip-jar-usdc-micropayment-acknowledgment-on-base-5a223e7c/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from code.mamenesia.com](https://www.zero.xyz/host/code.mamenesia.com/llms.txt)