# CloudMaxi0x RSI (Relative Strength Index)

> CloudMaxi0x RSI (Relative Strength Index) is a paid API for AI agents from cloudmaxi0x.com, paid per call via x402, $0.003/call, status unknown (last checked 2026-09-14).

Returns converged RSI values (Wilder smoothing) for a specified symbol, interval, and time range, with warm-up period pre-fetched and discarded so all returned values are fully converged.

## Facts

- Endpoint: GET https://cloudmaxi0x.com/v1/indicators/rsi
- Price: $0.003/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cloudmaxi0x-rsi-relative-strength-index-ef319bf8
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wvUHrDaYZaiF9OScURjLZ

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 cloudmaxi0x-rsi-relative-strength-index-ef319bf8
```

Example prompt: Can you get me the 14-period RSI for BTCUSDT on the 1h interval from January 1, 2024 00:00 UTC to February 1, 2024 00:00 UTC, with Wilder smoothing and all values fully converged?

## When to prefer this

Choose this endpoint when you need fully converged RSI values for a specific date range without implementing your own warm-up logic. It is particularly valuable for backtesting, where naïve RSI computed only over the requested window produces different (incorrect) values than RSI computed from a longer history — this endpoint handles that automatically. Prefer it over rolling your own RSI when you need reproducible, consistent indicator values across different range queries on the same dates.

## Known failure modes

- Invalid symbol returns an error (e.g. unrecognized trading pair)
- start_ms or end_ms not aligned to exact multiples of the requested interval causes a validation error
- end_ms is exclusive but treated as inclusive leads to off-by-one errors in range selection
- Requesting a very short range relative to the period may return fewer bars than expected
- Payment failure via x402 protocol results in 402 response and no data returned
- Rate limits may apply for rapid sequential calls

## How this service works

Deterministic, verifiable crypto market data and honest backtest audits. Use GET /v1/data/ohlcv for exact OHLCV over a half-open range with a SHA-256 Merkle manifest - only closed candles are returned, exchange decimal strings are preserved byte for byte, so the same query always yields the same root. Use GET /v1/data/proof to verify one candle against a root you already hold. Use POST /v1/validate/trades to find out whether a list of trade returns can be distinguished from luck, and POST /v1/validate/filter to test a trade filter against a permutation null. GET /, /v1/schema and /v1/data/sources are free.

## Output

A time series of RSI values (Wilder-smoothed, converged) for the requested symbol and interval over the specified epoch-ms date range, at the precision that accurately reproduces the indicator. Warm-up candles are fetched internally and discarded, so the first returned value is already converged and consistent with what a longer range computation would produce.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "symbol",
      "interval",
      "start_ms",
      "end_ms"
     ],
     "properties": {
      "end_ms": {
       "type": "integer",
       "description": "EXCLUSIVE, epoch ms, exact multiple of the interval"
      },
      "period": {
       "type": "integer",
       "description": "optional; defaults to 14"
      },
      "symbol": {
       "type": "string",
       "description": "e.g. BTCUSDT"
      },
      "interval": {
       "enum": [
        "1m",
        "3m",
        "5m",
        "15m",
        "30m",
        "1h",
        "2h",
        "4h",
        "6h",
        "8h",
        "12h",
        "1d",
        "3d",
        "1w"
       ],
       "type": "string"
      },
      "start_ms": {
       "type": "integer",
       "description": "inclusive, epoch ms, exact multiple of the interval"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cloudmaxi0x-rsi-relative-strength-index-ef319bf8/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cloudmaxi0x.com](https://www.zero.xyz/host/cloudmaxi0x.com/llms.txt)