Roundhouse

nostrpulse.xyz

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.

InfraLiveeip155:8453Exactvia cdp
https://nostrpulse.xyz/nostr/digest/brief
Settlements · 30d
3↓ 100%
No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days.
$1.28
Verified settled volume
52 settlements proven x402 by their on-chain EIP-3009 marker.
$0.050
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-06-18 05:07Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x20992371f85e235d4BfbA2fcA1148d09C87A1368

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.05USDC≈ $0.05 USD
on Base · exact scheme

Pay 0.05 USDC on Base to 0x2099…A1368. The signed payment is good for 5 minutes.

Paid to
0x2099…A1368
USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
50000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x20992371f85e235d4BfbA2fcA1148d09C87A1368",
    "amount": "50000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "window": "6h"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "window": "6h",
          "top_notes": [
            {
              "kind": 1,
              "sats": 63010,
              "note_id": "0f90a8f1064927e1157734aba696f13be7df5a9fa0ca2de2418c0b1720b5232e",
              "num_zaps": 4,
              "author_npub": "npub1fjqqy4a93z5zsjwsfxqhc2764kvykfdyttvldkkkdera8dr78vhsmmleku",
              "content_preview": "speaking of mortality, …"
            }
          ],
          "dvm_totals": {
            "requests": 1770,
            "responses": 1164,
            "feedback_events": 213,
            "distinct_feedback_providers": 20
          },
          "dvm_summary": "In the last 6h, 1770 NIP-90 DVM requests spanned 2 kind(s), with 1164 responses. Hottest: kind 5300 (content-discovery) — 1769 requests from 57 customers served by 30 providers.",
          "generated_at": 1778820000,
          "top_articles": [
            {
              "kind": 30023,
              "title": "depeg watch: FRAX -0.62% off peg",
              "summary": "frax $0.9938, -0.62% below peg…",
              "ranked_by": "recency",
              "author_npub": "npub1…"
            }
          ],
          "trending_hashtags": [
            {
              "tag": "bitcoin",
              "mentions": 642
            },
            {
              "tag": "news",
              "mentions": 471
            }
          ]
        }
      }
    },
    "schema": {
      "type": "object",
      "$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"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-06-18 05:07Z
Last indexed by Roundhouse
2026-07-17 12:00Z
Last enriched (probe, favicon, geo)
2026-09-21 14:15Z
x402 version
2
Max timeout
300s
Liveness probe
HTTP 402
Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

No per-endpoint history for this service yet, so this is payments indexed to its PROVIDER's wallet over 30 days. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service nostrpulse.xyz and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=nostrpulse.xyz'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://nostrpulse.xyz/nostr/digest/brief, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.