# NostrPulse Digest Brief

> NostrPulse Digest Brief is a paid API for AI agents from nostrpulse.xyz, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-15).

Returns a pre-aggregated snapshot of Nostr activity including top zap-weighted notes, trending long-form articles, hashtag clusters, and a DVM activity summary for a given rolling time window.

## Facts

- Endpoint: GET https://nostrpulse.xyz/nostr/digest/brief
- 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/nostrpulse-xyz-49684188
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_Ez_6DAT3V2pEfYRgWyrlF

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 nostrpulse-xyz-49684188
```

Example prompt: Give me a Nostr digest for the last 6 hours — I want to see the top zap-weighted notes, trending articles, and what hashtags are clustering right now.

## When to prefer this

Use this endpoint when you need a single consolidated Nostr activity brief rather than making multiple separate calls to individual signal endpoints. It's ideal for agents that want a human-readable or agent-ready summary of Nostr trends without assembling raw data themselves. Prefer it over the individual zap-velocity or DVM-activity endpoints when you want the full picture in one call at a slightly higher price point.

## Known failure modes

- Invalid window parameter (not one of 1h, 6h, 24h) returns a 400 error
- Payment not included or insufficient USDC (x402 flow) results in a 402 Payment Required
- Nostr relay data is stale or unavailable, returning partial or empty results
- Rate limiting if too many calls are made in quick succession

## How this service works

Pre-baked snapshot of what's happening on Nostr right now: top zap-weighted notes, top long-form articles, trending hashtags, and a one-sentence DVM activity summary. Combines the signal of the $0.02 endpoints into a single human/agent-ready brief, with hashtag clustering and article-title extraction included. Query ?window=1h|6h|24h.

## Output

A structured brief containing: top notes ranked by sat-zap velocity, top long-form article titles, trending hashtags with clustering, and a one-sentence summary of NIP-90 Data Vending Machine activity — all scoped to the requested rolling time window (1h, 6h, or 24h).

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "window": "6h"
  }
 }
}
```

## 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": {
      "window": {
       "enum": [
        "1h",
        "6h",
        "24h"
       ],
       "type": "string",
       "description": "Rolling time window. Default 6h."
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/nostrpulse-xyz-49684188/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from nostrpulse.xyz](https://www.zero.xyz/host/nostrpulse.xyz/llms.txt)