# Delx Commerce — Base58 Validate

> Delx Commerce — Base58 Validate is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-01).

Validates whether a given string conforms to the Bitcoin Base58 alphabet and returns its length and validity status.

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/base58-validate?utm_source=zero.xyz
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-01
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/delx-commerce-base58-validate-be228695
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_oHHPPcIXDaX2b4cAhVT2x

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-commerce-base58-validate-be228695 -d '<json body>'
```

Example prompt: Can you check if this string '1A1zP1eP5QGefi2DMPTfTL5SLmv7Divf' is a valid Bitcoin Base58 value and tell me its length?

## When to prefer this

Use this endpoint when you need a fast, cheap, pay-per-call Base58 format check with no signup overhead — ideal for agents validating Bitcoin-style addresses or encoded keys before passing them to downstream blockchain APIs. Prefer this over rolling your own regex when you want a verifiable, schema-stamped result.

## Known failure modes

- Missing or empty 'value' field returns a validation error
- Non-string input may cause a bad request response
- Payment failure via x402 protocol will block the call before processing
- Network or service unavailability returns a 5xx error

## How this service works

Pay-per-result APIs for agents. No signup. Exact price. Verifiable delivery. USDC on Base + Solana via x402.

## Output

Returns a JSON object with a boolean 'valid' field indicating whether the input conforms to the Bitcoin Base58 alphabet, the integer 'length' of the string, the 'alphabet' type used (bitcoin-base58), and a 'schema' identifier. Does not return decoded values.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "value": {
   "type": "string",
   "description": "Base58 string to validate against the Bitcoin alphabet (local only)."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "valid": true,
  "length": 34,
  "schema": "delx/util-base58-validate/v1",
  "alphabet": "bitcoin-base58",
  "values_returned": false
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-commerce-base58-validate-be228695/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from commerce.delx.ai](https://www.zero.xyz/host/commerce.delx.ai/llms.txt)