Monitoring · x402 · early usage

Online discourse sample, NOT a poll

Online discourse sample, NOT a poll. Use to see how public Hacker News and Bluesky posts split on a question. GET with required q; optional sides (2-4, default yes,no), window (1-30d). Returns JSON: per-side share with 95% interval and n, counts per source, l…

by horizonpulse.dev · discovered, not yet claimed by its owner · updated 2026-10-13

30d calls1
30d payers1
MethodGET
Outputjson

Mirrored from Coinbase's public x402 Bazaar. The description is the provider's own text and has not been reviewed here; the payment requirements are copied as published.

What it does

Online discourse sample, NOT a poll. Use to see how public Hacker News and Bluesky posts split on a question. GET with required q; optional sides (2-4, default yes,no), window (1-30d). Returns JSON: per-side share with 95% interval and n, counts per source, links only (no text or usernames; Bluesky links include the account's public ID, DID), caveats. Refuses elections, health and a named person's conduct. Under 30 decided posts, refusals and errors: not charged.

Tags: research · discourse · opinion-split · hacker-news-bluesky · not-a-poll · bazaar

Call contract

Method
GET
Input
query parameters
Output
json
Last paid call
2026-10-13
Input example from Bazaar metadata
{
  "q": "tabs or spaces for indentation",
  "sides": "tabs,spaces"
}
Output example
{
  "asOf": "2026-10-13T05:00:00.000Z",
  "cached": false,
  "caveats": [
    "Not a poll: self-selected posters on two tech-leaning, US-heavy networks; not representative of any population.",
    "Keyword search misses posts that use other words and can include off-topic posts.",
    "Bots, coordinated posting and brigading can move the numbers; one-vote-per-account and per-thread caps only reduce this.",
    "Stance labels come from an automated classifier and are sometimes wrong (sarcasm, quotes, negation)."
  ],
  "classifier": "none (illustrative)",
  "illustrative": true,
  "label": "online discourse sample, NOT a poll",
  "method": "Keyword search of public Hacker News comments (Algolia) and Bluesky posts within the window; one post per account, at most 10 per thread; each post (truncated to 280 chars, never returned) is labeled with one side or neutral by a stance classifier; shares are over decided posts with Wilson 95% intervals. Deleted links are removed from the sample, also when a cached answer is served (shares and n are not recomputed).",
  "n_classified": 84,
  "n_fetched": 145,
  "n_neutral": 61,
  "note": "Format sample only: counts are illustrative, NOT measured. No stance classifier is configured on this server yet, so no real answer has been recorded; this sample will be replaced by a real recording. No post text or usernames are ever returned.",
  "ok": true,
  "question": "tabs or spaces for indentation",
  "sample": [],
  "sides": [
    {
      "ci95": [
        0.3171,
        0.5235
      ],
      "label": "tabs",
      "n": 35,
      "share": 0.4167
    },
    {
      "ci95": [
        0.4765,
        0.6829
      ],
      "label": "spaces",
      "n": 49,
      "share": 0.5833
    }
  ],
  "source": "discourse-split",
  "sources": {
    "bsky": 32,
    "hn": 52
  },
  "window": {
    "days": 30,
    "from": "2026-09-13T05:00:00.000Z",
    "to": "2026-10-13T05:00:00.000Z"
  }
}

Use with an agent

  1. Discover. Agents find this listing with GET https://bazaar.saylorinnovations.com/discovery/search?query=…, the MCP tool search_resources, or /discovery/resources.
  2. Inspect. Fetch /resources/57528.json for the price and payment options.
  3. Pay. Call GET https://horizonpulse.dev/api/discourse/split. The provider answers 402 with its payment requirements. An x402 client signs one of the options below and retries with PAYMENT-SIGNATURE.
  4. Execute. The provider returns 200 with the data. Agent Bazaar is not in the request path and never sees your payment.

For humans

You don't need an account or an API key; you need a wallet holding a small amount of USDC on Base, Solana, xrpl:0, Polygon, and an x402-capable client (see the examples below). Call the endpoint unpaid first to see exactly what it asks for.

Pricing & payment

Price
$0.03 / request
Protocol
x402 v2
Auth
No account or API key. Pay per request.
Networks
Base, Solana, xrpl:0, Polygon
Demand
1 calls · 1 unique payers in 30d (public x402 Bazaar data)

x402 payment requirements

SchemeNetworkAssetAmountPay toTimeout
exactBase
eip155:8453
USDC$0.030x5b32c973596078a967562ca652761404f19be0e9300s
exactSolana
solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp
USDC$0.03BjY98A6dS3GGLZdz2zHy8wK7XAwnQgNhCc66mfmBTRPz300s
exactxrpl:0
xrpl:0
524C5553440000000000000000000000000000000.03r3FbirL83RAB2CwnUdxE5pCohMkuo6LQcf300s
exactPolygon
eip155:137
USDC$0.030x5b32c973596078a967562ca652761404f19be0e9300s
accepts[] (raw JSON)
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "payTo": "0x5b32c973596078a967562ca652761404f19be0e9",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "30000",
    "amountUsd": 0.03,
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "payTo": "BjY98A6dS3GGLZdz2zHy8wK7XAwnQgNhCc66mfmBTRPz",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "30000",
    "amountUsd": 0.03,
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "xrpl:0",
    "payTo": "r3FbirL83RAB2CwnUdxE5pCohMkuo6LQcf",
    "asset": "524C555344000000000000000000000000000000",
    "amount": "0.03",
    "maxTimeoutSeconds": 300
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "payTo": "0x5b32c973596078a967562ca652761404f19be0e9",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "30000",
    "amountUsd": 0.03,
    "maxTimeoutSeconds": 300
  }
]

Schemas

Output schema (JSON Schema)
{
  "properties": {
    "example": {
      "description": "Horizon Pulse online discourse split (NOT a poll): shares with 95% intervals, counts and source links. The example is a trimmed real response recorded from GET /api/demo/discourse-split at 2026-10-13T05:00Z UTC; live values differ on every call.",
      "type": "object"
    },
    "type": {
      "type": "string"
    }
  },
  "required": [
    "type"
  ],
  "type": "object"
}
Example shape — generated from the schema, not a captured live response
{
  "example": {},
  "type": "string"
}

Examples

curl
curl "https://horizonpulse.dev/api/discourse/split"
# -> 402 Payment Required, accepts[] lists how to pay
# retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://horizonpulse.dev/api/discourse/split");
if (res.status === 402) {
  const { accepts } = await res.json();
  // pay one of accepts[] via an x402 client, then retry with the payment header
}
Python
import httpx
res = httpx.get("https://horizonpulse.dev/api/discourse/split")
if res.status_code == 402:
    accepts = res.json()["accepts"]
    # pay one of accepts[] via an x402 client, then retry with the payment header

Details

Provider
horizonpulse.dev
Endpoint
https://horizonpulse.dev/api/discourse/split
Machine-readable
/resources/57528.json