# RPC Latency Anomaly Detection by Chain

> RPC Latency Anomaly Detection by Chain is a paid API for AI agents from organiccryptoyyc.com:8443, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Returns the latest measured RPC latency for a specified blockchain and flags whether it is anomalous relative to the expected range.

## Facts

- Endpoint: GET https://organiccryptoyyc.com:8443/v1/edge/rpc-anomaly/%7Bchain%7D
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/rpc-latency-anomaly-detection-by-chain-4d0b1338
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5GmBzje4mlYO9HXc0blg7

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 rpc-latency-anomaly-detection-by-chain-4d0b1338
```

Example prompt: Check whether the Ethereum RPC is behaving normally right now — specifically, is the current latency within its expected range or is something anomalous happening?

## When to prefer this

Choose this endpoint when you need a lightweight, per-call signal on whether a specific blockchain's RPC latency is anomalous, without building your own monitoring infrastructure. It is especially useful for agents that need to gate actions (e.g. contract deployment, transaction submission) on RPC health, or for alerting workflows across 38 supported chains including Ethereum, Solana, BSC, Arbitrum, Base, Optimism, and Polygon.

## Known failure modes

- Unknown or unsupported chain identifier returns an error or empty response
- Payment not settled in USDC results in 402 response blocking the call
- Chain RPC is completely unreachable, so no latency measurement is available
- Stale data if the measurement cadence lags behind real-time conditions
- Network issues to the organiccryptoyyc.com host return connection errors

## How this service works

Real-device, multi-region site verification with screenshot proof, live Pocket Network Shannon relay-demand/tokenomics/validator-security data, and on-chain RPC snapshots across 38 chains -- Ethereum, Solana, BSC, and peaq natively, plus 34 more EVM chains via Pocket Network's free public gateway (Arbitrum, Base, Optimism, Polygon, Avalanche, zkSync, Linea, Scroll, Gnosis, and more) -- 54 metered x402 routes, priced and settled per call in USDC. Migrating to Acurast decentralized cloud compute for censorship-resistant hosting -- stay tuned.

## Output

A JSON object containing the chain identifier, the most recent latency measurement in milliseconds with its timestamp, a boolean anomaly flag, the RPC provider used, and the expected low/high latency range in milliseconds.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "chain": "eth",
  "latest": {
   "measuredAt": "2026-09-07T23:00:00.000Z",
   "avgLatencyMs": 245
  },
  "anomaly": false,
  "provider": "llamarpc",
  "expectedRange": {
   "low": 210,
   "high": 290
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/rpc-latency-anomaly-detection-by-chain-4d0b1338/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from organiccryptoyyc.com:8443](https://www.zero.xyz/host/organiccryptoyyc.com%3A8443/llms.txt)