# Delx Base Nonce

> Delx Base Nonce is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-13).

Returns the transaction count (nonce) for a given Base network address via eth_getTransactionCount for $0.001 USDC.

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/base-nonce
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-base-nonce-b423ec52
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_gZwzCWb_jKYnUPgGVh8Hw

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 delx-base-nonce-b423ec52 -d '<json body>'
```

Example prompt: What's the current transaction count (nonce) for the Base address 0x742d35Cc6634C0532925a3b8D4C9B8f3e1234567?

## When to prefer this

Choose this endpoint when an agent needs a quick, pay-per-call nonce lookup on the Base network without managing an RPC node or API key. Ideal for transaction construction pipelines, fraud checks, or account activity probes where calling a public RPC directly is inconvenient or requires infrastructure setup. The $0.001 USDC x402 pricing makes it cost-effective for low-volume or on-demand lookups.

## Known failure modes

- Invalid or malformed Ethereum address returns an error response
- Address with no transaction history returns 0 (valid but may confuse callers expecting activity)
- Network or RPC unavailability causes a 5xx or timeout
- Payment failure (insufficient USDC balance or x402 protocol error) blocks the request

## How this service works

Transaction count/nonce for one Base address for $0.001 USDC via eth_getTransactionCount. Call when you need this bounded result without an API key or subscription. Returns machine-readable JSON via x402 on Base or Solana. Limitation: results cover only the supplied input or one bounded public endpoint at request time; callers must verify before acting.

## Output

Returns the nonce (transaction count) for the queried Base address — an integer representing how many transactions the account has sent, usable directly as the nonce field when constructing a new transaction.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "address": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {},
  "tool_name": "get_base_nonce"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-base-nonce-b423ec52/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.delx.ai](https://www.zero.xyz/host/api.delx.ai/llms.txt)