# Signalis Intelligence History API

> Signalis Intelligence History API is a paid API for AI agents from api.signalis.dev, paid per call via x402, $0.03/call, status unknown (last checked 2026-09-13).

Retrieves historical Master Intelligence digests with executive summaries, sources, and provenance for a configurable lookback window up to 168 hours

## Facts

- Endpoint: GET https://api.signalis.dev/v1/intelligence/history
- Price: $0.03/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/signalis-intelligence-history-api-fe27678d
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_kMxoDtfXA07XmbxO-79oB

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 signalis-intelligence-history-api-fe27678d
```

Example prompt: Pull me the last 20 Signalis Master Intelligence digests from the past 48 hours, including their titles, executive summaries, and which sources were used.

## When to prefer this

Use this endpoint when you need a historical overview of Master Intelligence digests over a configurable time window — ideal for auditing recent intelligence output, reviewing past summaries, or tracking digest volume and provenance over up to 7 days. Prefer this over the active-narratives endpoint when you want completed, archived digests rather than live narrative state.

## Known failure modes

- Invalid hours parameter (outside 1–168 range) returns a validation error
- Invalid limit parameter (outside 1–50 range) returns a validation error
- No digests found in the specified window returns an empty array
- Payment not processed or x402 flow fails, resulting in no charge and no data returned
- Service unavailable returns an HTTP 5xx error without charge (compute-first / settle-after model)

## How this service works

Paid ($0.03 USDC via x402). Historical Master Intelligence digests (1-168 hour lookback) — id, title, executive summary, sources used, processing time, and createdAt provenance per row. Compute-first / settle-after — you are never charged for an error.

## Output

An array of up to 50 historical Master Intelligence digest records, each containing a unique ID, title, executive summary, list of sources used, processing time, and createdAt timestamp. Results are bounded by the specified lookback window (1–168 hours).

## 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"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "hours": {
       "type": "integer",
       "maximum": 168,
       "minimum": 1,
       "description": "Lookback window in hours (1-168)."
      },
      "limit": {
       "type": "integer",
       "maximum": 50,
       "minimum": 1,
       "description": "Max digests to return (1-50)."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "data": [
   {
    "id": "clx0master123",
    "title": "AI Infrastructure Race Accelerates as Macro Uncertainty Builds",
    "createdAt": "2026-07-09T20:00:00.000Z",
    "sourcesUsed": [
     "polymarket",
     "fred",
     "github",
     "moltbook"
    ],
    "executiveSummary": "Cross-source signals point to intensifying AI-infrastructure competition...",
    "processingTimeMs": 48213
   }
  ],
  "count": 2,
  "hours": 48,
  "limit": 10,
  "charged": true,
  "success": true
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/signalis-intelligence-history-api-fe27678d/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.signalis.dev](https://www.zero.xyz/host/api.signalis.dev/llms.txt)