# ForgeMesh Anomaly Tracker — Real-Time Sequence Anomaly Detection

> ForgeMesh Anomaly Tracker — Real-Time Sequence Anomaly Detection is a paid API for AI agents from anomaly.forgemesh.io, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Detects anomalous event sequences on blockchain networks (Ethereum, Base, Arbitrum) including stablecoin depegs, mempool anomalies, and supply expansions using NASA-derived algorithms

## Facts

- Endpoint: POST https://anomaly.forgemesh.io/api/sequence-anomaly
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/forgemesh-anomaly-tracker-real-time-sequence-anomaly-detection-31ef6b4d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ILw-JlkovVBZWb-bulo06

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 forgemesh-anomaly-tracker-real-time-sequence-anomaly-detection-31ef6b4d -d '<json body>'
```

Example prompt: Can you check ForgeMesh for any high-novelty anomalies on Ethereum in the financial domain over the last 24 hours and tell me the sequence score and what failure modes to watch out for?

## When to prefer this

Use this endpoint when you need real-time, scored anomaly detection specifically for blockchain event sequences (Ethereum, Base, Arbitrum) in the financial domain, especially for stablecoin depeg signals, mempool anomalies, and supply expansion patterns. Prefer this over generic blockchain data APIs when you need a pre-computed novelty score, a human-readable story label, and historical pattern matching in a single call. Ideal for agents that need to act on anomaly signals without building their own sequence analysis pipeline.

## Known failure modes

- Invalid chain value returns error (must be 'ethereum', 'base', or 'arbitrum')
- Invalid window value returns error (must be '1h', '4h', '24h', or '168h')
- Missing required 'type' or 'method' fields in input object cause request rejection
- Insufficient on-chain data in selected window may result in low events_collected and unreliable scores
- Payment failure via x402 micropayment protocol blocks the request
- Service may be unavailable during blockchain node outages or high network congestion

## How this service works

Score the current blockchain event window for sequence anomalies

## Output

Returns a JSON object with: chain identifier, human-readable anomaly story label (e.g. 'Supply Expansion'), domain, novelty level (low/medium/high/extreme), coverage ratio, the peak event sequence array (e.g. STABLECOIN_MINT/REDEEM patterns), window in hours, a sequence score from 0 (normal) to 100 (highly anomalous), number of events collected, number of historical matches, and a list of possible failure modes.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "chain": {
   "type": "string",
   "description": "Blockchain: ethereum, base, or arbitrum"
  },
  "domain": {
   "type": "string",
   "description": "Event domain (currently: financial)"
  },
  "window": {
   "type": "string",
   "description": "Lookback window: 1h, 4h, 24h, or 168h"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "chain": "ethereum",
  "story": "Supply Expansion",
  "domain": "financial",
  "novelty": "high",
  "coverage": 0.34,
  "peak_window": [
   "STABLECOIN_MINT",
   "STABLECOIN_REDEEM",
   "STABLECOIN_MINT",
   "STABLECOIN_REDEEM"
  ],
  "window_hours": 24,
  "sequence_score": 66,
  "events_collected": 29,
  "historical_matches": 2,
  "possible_failure_modes": [
   "supply_expansion"
  ]
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/forgemesh-anomaly-tracker-real-time-sequence-anomaly-detection-31ef6b4d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from anomaly.forgemesh.io](https://www.zero.xyz/host/anomaly.forgemesh.io/llms.txt)