# Delx Commerce — EVM Blob Count Check

> Delx Commerce — EVM Blob Count Check is a paid API for AI agents from commerce.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-01).

Validates whether a given EVM blob count is within a specified maximum limit, returning a bounded pass/fail result with verifiable evidence.

## Facts

- Endpoint: POST https://commerce.delx.ai/api/v1/x402/evm-blob-count-check?utm_source=zero.xyz
- Price: $0.001/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-evm-blob-count-check-4753c2c3
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xV0Zj-nDwhH_I4RkdoHNZ

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-evm-blob-count-check-4753c2c3 -d '<json body>'
```

Example prompt: Before I submit this EVM transaction, check whether a blob count of 2 is within the maximum of 6 — I need a pass or fail result with a verifiable hash.

## When to prefer this

Use this endpoint when you need a lightweight, trustless, and verifiable preflight check that a given EVM blob count does not exceed a specified maximum — especially in agentic pipelines where auditability (SHA-256 evidence hash, no data retention) and pay-per-call micropayment (no signup required) are priorities. Prefer this over custom logic when you need tamper-evident proof of the check result.

## Known failure modes

- Missing required parameters (blob_count or maximum) result in a validation error
- Non-integer input types cause a schema rejection
- Payment not received or incorrect USDC amount leads to 402 response before computation
- Malformed request body returns a 400 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 the original inputs (blob_count and maximum), a boolean within_limit field, an overall status (pass/fail), and an evidence block containing a SHA-256 hash of the input, a flag confirming no data retention, and a count of external calls made (always 0).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "maximum": {
   "type": "integer",
   "description": "Maximum supplied to EVM Blob Count Check; used only for this bounded calculation and processed in memory without retention."
  },
  "blob_count": {
   "type": "integer",
   "description": "Blob Count supplied to EVM Blob Count Check; used only for this bounded calculation and processed in memory without retention."
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "maximum": 6,
   "blob_count": 2,
   "within_limit": true
  },
  "schema": "delx/util-evm-blob-count-check/v1",
  "status": "pass",
  "evidence": {
   "retained": false,
   "input_sha256": "b549f9e7119c69aa37ac661b862dfefbba90fa2ca0d8fa28e49d03aec7f75485",
   "external_calls": 0
  },
  "operation": "evm_preflight:evm_blob_count_check"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/delx-commerce-evm-blob-count-check-4753c2c3/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)