# SignalHarness Market Drawdown Analysis

> SignalHarness Market Drawdown Analysis is a paid API for AI agents from signalharness.ai, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-13).

Analyzes market drawdown data provided by the caller, returning a structured drawdown assessment with warnings and evidence scope

## Facts

- Endpoint: POST https://signalharness.ai/api/agent/services/market_drawdown/invoke
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signalharness-market-drawdown-analysis-91af5783
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_TzvgidYz8byJr60p_uT7L

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 signalharness-market-drawdown-analysis-91af5783 -d '<json body>'
```

Example prompt: Can you run a market drawdown analysis on this dataset — the asset peaked at $150 in January, dropped to $90 by March, partially recovered to $120 in May, then fell again to $80 in August — and tell me the maximum drawdown percentage and any risk warnings?

## When to prefer this

Choose this endpoint when you need a lightweight, per-call ($0.01 USDC) market drawdown computation grounded in caller-supplied data rather than a live market data feed. It is ideal for agents that already have the price series or narrative description and need a structured drawdown assessment with an auditable receipt. Prefer it over heavier financial analytics platforms when you need fast, cheap, verifiable single-call analysis with micropayment settlement on Base (EIP-155:8453).

## Known failure modes

- Empty or too-short input string (below 2 characters) causes validation failure
- Malformed or ambiguous market data description may yield low-confidence results with warnings
- Payment failure on the x402 micropayment layer results in request rejection before execution
- Service downtime or upstream model errors return a failed status in the receipt

## How this service works

Explore 330 pay-per-call x402 API services and 27 agent-native digital products, with Base USDC pricing, secure Polar checkout, and free discovery.

## Output

Returns a JSON object containing a `market_drawdown` result string with the drawdown analysis, a list of `warnings` about data quality or risk factors, an `evidence_scope` field indicating the data came from caller-supplied inputs, a `status` of succeeded or failed, and a full payment receipt with execution metadata including latency, payment ID, and a SHA-256 hash of the result for verification.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "market_drawdown_request": {
   "type": "string",
   "maxLength": 65536,
   "minLength": 2
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "replay": false,
  "result": {
   "warnings": [
    "Results cover only the supplied observation period."
   ],
   "service_id": "market_drawdown",
   "evidence_scope": "caller_supplied_data",
   "market_drawdown": "{\"maximum_drawdown\":\"-0.25\",\"maximum_drawdown_percent\":\"-25\",\"series\":[{\"drawdown\":\"0\",\"index\":0},{\"drawdown\":\"0\",\"index\":1},{\"drawdown\":\"-0.25\",\"index\":2},{\"drawdown\":\"-0.083333333333333333\",\"index\":3}]}"
  },
  "status": "succeeded",
  "receipt": {
   "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
   "usage": [],
   "status": "succeeded",
   "network": "eip155:8453",
   "artifacts": [],
   "endedAtMs": 0,
   "latencyMs": 0,
   "paymentId": "example-payment",
   "receiptId": "example-receipt",
   "requestId": "example-request",
   "serviceId": "market_drawdown",
   "executionId": "example-execution",
   "startedAtMs": 0,
   "amountAtomic": "10000",
   "resultSha256": "789fd3a637f53c03f6f71e6105ca17248e8432e0d51a8063f5687e0ff8b7275d",
   "serviceVersion": "1.0.0",
   "settlementReference": "0x0000000000000000000000000000000000000000000000000000000000000000"
  },
  "artifacts": [],
  "requestId": "example-request",
  "executionId": "example-execution"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signalharness-market-drawdown-analysis-91af5783/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from signalharness.ai](https://www.zero.xyz/host/signalharness.ai/llms.txt)