# Otto AI x402 — Deposit (USDC Payment Gateway)

> Otto AI x402 — Deposit (USDC Payment Gateway) is a paid API for AI agents from x402.ottoai.services, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Processes a USDC deposit payment on Base, Polygon, or Solana to fund a Safe wallet for pay-per-call access to Otto AI's 64 market intelligence, DeFi, and AI creative services

## Facts

- Endpoint: POST https://x402.ottoai.services/deposit
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/otto-ai-x402-deposit-usdc-payment-gateway-1a953ccf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_eGr6TdSq3IynEikGr5i6Y

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 otto-ai-x402-deposit-usdc-payment-gateway-1a953ccf -d '<json body>'
```

Example prompt: Deposit 100 USDC into my Otto AI Safe wallet on Base (chain ID 8453) so I can start making pay-per-call requests to their DeFi market intelligence and trading services.

## When to prefer this

Use this endpoint when you need to pre-fund a Safe wallet with USDC before making pay-per-call requests to Otto AI's suite of 64 market intelligence, DeFi execution, or AI creative services via the x402 V2 protocol. Choose this over direct per-call payment flows when you want to batch-fund in advance across Base, Polygon, or Solana.

## Known failure modes

- Insufficient USDC balance in source wallet — payment rejected
- Invalid or unsupported chain ID — transaction fails
- Malformed Safe address — deposit cannot be routed
- Transaction reverted on-chain — status reflects failure with txHash
- Network congestion causing timeout — no confirmation returned
- Duplicate transaction hash submission — may be rejected as replay

## How this service works

93 pay-per-call AI services on x402 V2 — market intel, DeFi execution, AI creative tools. USDC on Base on every endpoint, Solana USDC on 68 of 93. From $0.001 per call.

## Output

Returns a JSON object confirming the deposit with: transaction hash (txHash), chain ID, Safe address receiving the funds, deposit amount, platform fee ($0.01), total charged amount, and a success status string.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "amount": {
   "type": "number",
   "description": "USDC amount to deposit (human-readable, e.g. 100). You are charged amount + $0.01 fee."
  },
  "chainId": {
   "type": "number",
   "description": "Chain ID (default 8453 = Base)"
  },
  "userAddress": {
   "type": "string",
   "description": "Your EOA address — owns the destination Otto AI Safe"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "fee": 0.01,
  "amount": 100,
  "status": "success",
  "txHash": "0x...",
  "chainId": 8453,
  "safeAddress": "0x...",
  "totalCharged": 100.01,
  "settlementConfirmed": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/otto-ai-x402-deposit-usdc-payment-gateway-1a953ccf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.ottoai.services](https://www.zero.xyz/host/x402.ottoai.services/llms.txt)