Delx Commerce — Object Key Existence Check (obj-has)

x402

Delx Commerce — Object Key Existence Check (obj-has) 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).

Checks whether a specified key exists in a given JSON object, returning a boolean result

Price / call$0.001

Seller volume →—

Success—

StatusUnknown

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 'has' field (true/false indicating key presence), the 'key' that was checked, and a 'schema' identifier ('delx/util-obj-has/v1') confirming the result format.

Example use cases

API response field validation

“I'm getting a JSON response from a third-party API and need to know if the key 'user_id' is present in it before I try to use it — can you check this object for me: {"status": "ok", "user_id": 42}?”

Pre-processing data pipeline guard

“Before my agent processes this record, I need to confirm that the key 'price' exists in the payload {"item": "widget", "price": 9.99, "stock": 5} — can you verify that for me?”

Schema compliance spot-check

“Does the object {"id": "abc123", "created_at": "2024-01-01"} have the key 'updated_at'? I need to know before I try to read that field.”

Technical details

Endpoint

POSThttps://commerce.delx.ai/api/v1/x402/obj-has?utm_source=zero.xyz

When to prefer

Use this endpoint when an AI agent needs a quick, cheap, pay-per-use check for key existence in a JSON object without setting up any account or subscription. Ideal for lightweight data validation steps in an automated pipeline where the agent pays per result via USDC. Prefer over in-code checks when you need verifiable, auditable delivery proof of the validation result.

Side effects

Missing 'key' field in request body — likely returns an error or undefined behavior
Missing 'object' field in request body — likely returns an error
Payment failure via x402 protocol — endpoint returns 402 Payment Required if USDC payment is not attached
Malformed JSON object input — may return an error or unexpected result
Key is nested deeply — this endpoint likely only checks top-level keys

Input

Schema · Request body

Field	Type	Description
key	string	Input field: key.
object	object	Input field: object.

Output

Schema · Response

{
  "type": "json",
  "example": {
    "has": true,
    "key": "a",
    "schema": "delx/util-obj-has/v1"
  }
}

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