# JSON Object Lowercase Keys

> JSON Object Lowercase Keys is a paid API for AI agents from api.delx.ai, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-15).

Lowercases all top-level keys of a JSON object and reports any case collision conflicts that result

## Facts

- Endpoint: POST https://api.delx.ai/api/v1/x402/json-object-lowercase-keys
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/json-object-lowercase-keys-08b7b8e2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ApC1fZ8EJjILzyd3yEXcR

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 json-object-lowercase-keys-08b7b8e2 -d '<json body>'
```

Example prompt: Lowercase all the top-level keys in this JSON object and let me know if any of them collide after normalization: {"Name": "Alice", "name": "Bob", "Age": 30}.

## When to prefer this

Choose this endpoint when an agent needs to programmatically normalize JSON object keys to lowercase before handing structured data to a downstream tool with a strict lowercase-key contract, or when you need to detect silent data-loss risks caused by case collisions (e.g. merging two datasets). It is fully deterministic, stateless, and requires no API key — ideal for lightweight in-pipeline normalization steps where reliability and auditability matter more than speed. Prefer alternatives only if you need deep or nested key normalization (this only handles top-level keys) or if you require full schema transformation beyond key casing.

## Known failure modes

- Object exceeds 128 properties limit — rejected with validation error
- Input is not a valid JSON object — returns parse or type error
- Payment of 0.001 USDC not fulfilled — request blocked by x402 payment gate
- Key collision detected but not fatal — reported in collision list rather than error
- Empty object input — returns empty transformed object with zero counts

## How this service works

JSON Object Lowercase Keys: JSON Object Lowercase Keys lowercases top-level keys and reports case collisions from bounded caller-supplied values without an external provider. Call JSON Object Lowercase Keys before an agent hands structured data or a batch plan to a downstream tool with a stricter contract. Returns the bounded transformation or validation finding with counts, normalized values, and a versioned result contract for JSON Object Lowercase Keys as versioned deterministic JSON. Price:…

## Output

Returns a versioned deterministic JSON object containing the transformed object with all top-level keys lowercased, a count of keys transformed, a list of any case collisions detected (where two or more original keys map to the same lowercase key), and normalized values conforming to a versioned result contract.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "object": {
   "type": "object",
   "description": "Object supplied to JSON Object Lowercase Keys; used only for this bounded calculation and processed in memory without retention.",
   "maxProperties": 128,
   "additionalProperties": true
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "result": {
   "object": {
    "id": 1,
    "name": "Ada"
   },
   "collisions": []
  },
  "schema": "delx/util-json-object-lowercase-keys/v1",
  "status": "pass",
  "evidence": {
   "retained": false,
   "input_sha256": "37b2247aeb51f0c1429c418153df2d4c9c884af1adb5286671b5f4e490e1c4d8",
   "external_calls": 0
  },
  "operation": "data_batch:json_object_lowercase_keys"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/json-object-lowercase-keys-08b7b8e2/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)