# RadhikaChain Chain Candidates UTXO Feed

> RadhikaChain Chain Candidates UTXO Feed is a paid API for AI agents from x402.radhikachain.xyz, paid per call via x402, $1.3728/call, status unknown (last checked 2026-09-15).

Returns a list of current UTXO candidates (unspent transaction outputs) on the RadhikaChain network, including txid, vout, amount, height, address, and scriptPubKey.

## Facts

- Endpoint: GET https://x402.radhikachain.xyz/chain/candidates
- Price: $1.3728/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/radhikachain-chain-candidates-utxo-feed-e8ec6b2b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_4U3ym16OJQYjly3Maa4-w

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 radhikachain-chain-candidates-utxo-feed-e8ec6b2b
```

Example prompt: Pull the current list of UTXO candidates from RadhikaChain right now — I need the transaction IDs, output indices, amounts, and addresses for all unspent outputs.

## When to prefer this

Choose this endpoint when you specifically need the current UTXO candidate set from the RadhikaChain network, especially for treasury monitoring, chain telemetry ingestion, or on-chain analytics. It is pay-per-call via x402 with no account required, making it suitable for ad-hoc agent queries without subscription overhead. Prefer this over generic blockchain explorers when you need RadhikaChain-native UTXO data with ZK-backed infrastructure context.

## Known failure modes

- Payment not included or invalid x402 USDC payment header — returns 402 Payment Required
- Chain node temporarily unavailable — returns 503 Service Unavailable
- No UTXOs currently available — returns empty utxos array with count 0
- Malformed request or unsupported query parameters — returns 400 Bad Request

## How this service works

Telemetria de cadena, inteligencia de defensa y computo verificable (Halo2, Nova, Plonky3). Pago por peticion en USDC nativo en Base (eip155:8453) mediante x402 v2 scheme exact; sin cuenta ni suscripcion. Catalogo canonico: GET /.well-known/x402.

## Output

Returns a JSON object with a count of UTXO candidates and an array of UTXO entries, each containing txid, vout (output index), amount (in base units), block height (null if unconfirmed), address (bech32 RadhikaChain format), and scriptPubKey (hex-encoded).

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "properties": {
  "input": {
   "type": "object",
   "properties": {
    "body": {
     "type": "object",
     "additionalProperties": true
    },
    "queryParams": {
     "type": "object",
     "additionalProperties": true
    }
   }
  },
  "output": {
   "type": "object",
   "properties": {
    "example": {
     "type": "object",
     "additionalProperties": true
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "count": 145,
  "utxos": [
   {
    "txid": "fcaaef1b6df1e625f065bb4042380c306100123392fb7e8e1d24779f0e3f1831",
    "vout": 1,
    "amount": 7311225114952,
    "height": null,
    "address": "radh1q3sgy50nfah8tqqa0az547tyhvwxauqyfgu44ep",
    "scriptPubKey": "00148c104a3e69edceb003afe8a95f2c97638dde0089"
   },
   {
    "txid": "4094f37063ea3b1fd638417b29d58e918956a13d59cdf13ba7fa19e125d044ea",
    "vout": 0,
    "amount": 7302282752243,
    "height": null,
    "address": "radh1q3sgy50nfah8tqqa0az547tyhvwxauqyfgu44ep",
    "scriptPubKey": "00148c104a3e69edceb003afe8a95f2c97638dde0089"
   }
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/radhikachain-chain-candidates-utxo-feed-e8ec6b2b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402.radhikachain.xyz](https://www.zero.xyz/host/x402.radhikachain.xyz/llms.txt)