# TwelveX RSI Indicator Endpoint

> TwelveX RSI Indicator Endpoint is a paid API for AI agents from twelvix402.vercel.app, paid per call via x402, $0.1/call, status unknown (last checked 2026-09-14).

Returns the Relative Strength Index (RSI) for a given financial symbol over a specified interval and time period, powered by Twelve Data.

## Facts

- Endpoint: GET https://twelvix402.vercel.app/api/rsi/%7Bsymbol%7D
- Price: $0.1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/twelvex-rsi-indicator-endpoint-2e0b2002
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-oitjDdZS7nRgs69_MQeG

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 twelvex-rsi-indicator-endpoint-2e0b2002
```

Example prompt: What's the RSI for AAPL right now using a 1-day interval and a 14-period time window? I want to know if it's overbought or oversold.

## When to prefer this

Use this endpoint when you need RSI (Relative Strength Index) technical indicator data for stocks, forex pairs, or crypto assets and want a pay-per-call model via x402/USDC micropayments rather than a subscription. Prefer this over raw OHLCV endpoints when you specifically need a pre-computed momentum oscillator without doing the math yourself.

## Known failure modes

- Invalid or unsupported symbol returns an error object
- Unsupported interval string causes a bad request
- Symbol not found in Twelve Data's universe returns empty or error
- Payment not fulfilled (x402) results in 402 Payment Required response
- Rate limiting or upstream Twelve Data API failure returns 5xx error

## How this service works

Premium financial data API — 25 endpoints for stocks, forex, crypto, and technical analysis. Powered by Twelve Data.

## Output

Returns an RSI (Relative Strength Index) value for the requested symbol, typically a number between 0 and 100 indicating momentum strength. Values above 70 suggest overbought conditions; values below 30 suggest oversold conditions.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "interval": {
   "type": "string"
  },
  "time_period": {
   "type": "string",
   "description": "Default: 14"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/twelvex-rsi-indicator-endpoint-2e0b2002/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from twelvix402.vercel.app](https://www.zero.xyz/host/twelvix402.vercel.app/llms.txt)