# x402 Vault Service - Deposit

> x402 Vault Service - Deposit is a paid API for AI agents from x402-vault-service.vercel.app, paid per call via x402, $1.01/call, status unknown (last checked 2026-10-22).

Deposits USDC into the Ink Balanced Yield USDC vault on behalf of a specified EVM wallet address, minting vault shares proportional to the deposit amount.

## Facts

- Endpoint: GET https://x402-vault-service.vercel.app/api/deposit?utm_source=zero.xyz
- Price: $1.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-22
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/x402-vault-service-deposit-20284025
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_MnOaXoj6WmUX05V5n7Aat

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-vault-service-deposit-20284025
```

Example prompt: Deposit 50 USDC into the Ink Balanced Yield vault for my wallet 0xAbC1234567890abcdef1234567890abcdef123456.

## When to prefer this

Use this endpoint when an agent needs to programmatically deposit USDC into the Ink Balanced Yield vault and receive vault shares for a specific EVM wallet address. Prefer this over manual DeFi interactions when automating yield strategies, recurring deposits, or treasury management workflows that require on-chain vault deposits with a simple API interface.

## Known failure modes

- Missing or invalid wallet address returns an error (wallet param is required)
- Non-positive or malformed amount string causes rejection
- Insufficient USDC balance or allowance for the deposit plus $0.01 fee
- x402 payment not fulfilled — endpoint requires $1.01 USDC payment per call
- Network or RPC errors on the Ink chain causing transaction failure
- Vault contract paused or at capacity rejecting deposits

## How this service works

Deposit into the Ink Balanced Yield USDC vault ($0.01 fee on top of the deposit amount).

## Output

Returns a confirmation object indicating the deposit was executed, including details such as the transaction result type and example output showing minted vault shares credited to the specified wallet address.

## 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"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "wallet"
     ],
     "properties": {
      "amount": {
       "type": "string",
       "description": "Net USDC to deposit, before the flat $0.01 fee. Any positive amount; no minimum. Defaults to 1."
      },
      "wallet": {
       "type": "string",
       "description": "EVM address that should receive the minted vault shares"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/x402-vault-service-deposit-20284025/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-vault-service.vercel.app](https://www.zero.xyz/host/x402-vault-service.vercel.app/llms.txt)