# Phantom API — Kaia Transaction History

> Phantom API — Kaia Transaction History is a paid API for AI agents from phantom-api-omega.vercel.app, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Retrieves paginated transaction history for addresses on the Kaia blockchain network

## Facts

- Endpoint: POST https://phantom-api-omega.vercel.app/api/kaia/tx/history
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/phantom-api-kaia-transaction-history-b050a9ee
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_59I3wiZfneBorxuc__i73

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 phantom-api-kaia-transaction-history-b050a9ee -d '<json body>'
```

Example prompt: Pull the last 50 transactions for Kaia address 0xABC123... in descending order, including metadata, and exclude any zero-value transfers.

## When to prefer this

Use this endpoint when you specifically need transaction history on the Kaia blockchain network and want pay-per-call pricing at $0.01 USDC with no subscription required. Prefer this over general-purpose blockchain explorers when you need programmatic, filterable access to Kaia tx history with pagination, block range filtering, and category-based filtering in a single API call.

## Known failure modes

- Invalid address format returns an error response
- Block range too large may time out or return partial results
- Unknown category values may be ignored or cause validation errors
- Missing both fromAddress and toAddress may return an error or empty result
- pageKey expiry may require restarting pagination from the beginning

## How this service works

Lightning-fast access to blockchain data, smart contract insights, and Web3 infrastructure across 57+ networks. Pay-per-call via x402.

## Output

Returns a paginated list of Kaia blockchain transactions matching the specified filters, including sender/receiver addresses, block numbers, transaction categories, and optional metadata. A pageKey is provided for fetching subsequent pages when more results exist.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "order": {
   "enum": [
    "asc",
    "desc"
   ],
   "type": "string"
  },
  "pageKey": {
   "type": "string"
  },
  "toBlock": {
   "type": "string"
  },
  "category": {
   "type": "array",
   "items": {
    "type": "string"
   }
  },
  "maxCount": {
   "type": "number"
  },
  "fromBlock": {
   "type": "string"
  },
  "toAddress": {
   "type": "string"
  },
  "fromAddress": {
   "type": "string"
  },
  "withMetadata": {
   "type": "boolean"
  },
  "excludeZeroValue": {
   "type": "boolean"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/phantom-api-kaia-transaction-history-b050a9ee/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from phantom-api-omega.vercel.app](https://www.zero.xyz/host/phantom-api-omega.vercel.app/llms.txt)