# Significant Earthquakes Brief (LLM Digest)

> Significant Earthquakes Brief (LLM Digest) is a paid API for AI agents from oracles-production.up.railway.app, paid per call via x402, $0.25/call, status unknown (last checked 2026-09-14).

Returns an LLM-written narrative digest summarizing the most significant recent earthquakes, optionally filtered by a start timestamp.

## Facts

- Endpoint: GET https://oracles-production.up.railway.app/v1/earthquakes-significant/brief
- Price: $0.25/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/significant-earthquakes-brief-llm-digest-96cf87d4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_wt7tlii6XY4Lsr_TyHgqi

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 significant-earthquakes-brief-llm-digest-96cf87d4
```

Example prompt: Give me an LLM-written digest of the most significant earthquakes since January 1, 2025 — I want a narrative summary of what happened seismically, not just raw data.

## When to prefer this

Use this endpoint when you need a human-readable, LLM-authored narrative summary of recent significant earthquakes rather than raw seismic data or individual event records. Prefer this over sibling detail endpoints when the user wants a high-level digest or trend report rather than data on a specific quake. Best for news briefings, situation awareness summaries, or natural disaster monitoring digests.

## Known failure modes

- No significant earthquakes in the requested time window — may return an empty or minimal brief
- Invalid date-time format for 'since' parameter returns a validation error
- Upstream USGS data unavailable — digest may be stale or generation may fail
- LLM generation failure may fall back to template-based output (generatedBy: template)
- Payment not processed (x402) — endpoint returns 402 Payment Required

## How this service works

An LLM-written digest of the most significant recent earthquakes.

## Output

Returns a JSON object with a 'brief' field containing a natural-language narrative summary of significant recent earthquakes authored by an LLM, a 'generatedBy' field indicating whether it was LLM- or template-generated, and a 'basedOnChanges' integer indicating how many earthquake events the digest is based on.

## 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",
     "properties": {
      "since": {
       "type": "string",
       "format": "date-time",
       "description": "Window start (default: last 30 days)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "brief": {
       "type": "string"
      },
      "generatedBy": {
       "enum": [
        "llm",
        "template"
       ],
       "type": "string"
      },
      "basedOnChanges": {
       "type": "integer"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/significant-earthquakes-brief-llm-digest-96cf87d4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from oracles-production.up.railway.app](https://www.zero.xyz/host/oracles-production.up.railway.app/llms.txt)