Research Brief API

Name: Research Brief API
Price: 0.05 USDC

Use this when you need a cited research brief on any topic: searches the live web, reads 3-6 sources, and returns a structured JSON brief — summary, key findings each linked to its source URL, confidence and caveats. No API key, no signup — x402 per-call payment only.

SearchUnknowneip155:84532Exactvia facilitator:payAI

https://preview-chat-985505b1-9dc0-470f-9fc3-3704d8b625e3.space-z.ai/api/x402/research-brief

ResearchWeb-searchSynthesisCitations

Activity

—

Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record.

—

Verified settled volume

0 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.

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Calls · 30d

Upstream's own call count for this endpoint, not ours.

—

Unique payers · 30d

Never called

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Upstream on-chain volume

Reported by the source catalog.

Paid to

0x40560Fa6E0908932Ab8F7bf8B2AFA18533e044Cc

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

Asset 0x036CbD53842c5426634e7929541eC2318f3dCF7e

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 Sepolia · exact scheme

Pay 0.05 USDC on Base Sepolia to 0x4056…044Cc. The signed payment is good for 5 minutes.

Paid to: 0x4056…044Cc
USD Coin (Base Sepolia) contract: 0x036C…dCF7e
Payment window: 5 minutes
As published: 50000 smallest units

The catalog’s raw entry

[
  {
    "asset": "0x036CbD53842c5426634e7929541eC2318f3dCF7e",
    "extra": {
      "name": "USDC",
      "version": "2"
    },
    "payTo": "0x40560Fa6E0908932Ab8F7bf8B2AFA18533e044Cc",
    "amount": "50000",
    "scheme": "exact",
    "network": "eip155:84532",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "focus": "adoption metrics and recent launches",
          "topic": "current state of the x402 payment protocol ecosystem",
          "max_sources": 4,
          "recency_days": 30
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "ok": true,
          "topic": "current state of the x402 payment protocol ecosystem",
          "caveats": "…gaps/staleness notes…",
          "sources": [
            {
              "url": "https://example.com/article",
              "date": "2026-09-01",
              "title": "Example article",
              "retrieved_at": "2026-09-18T00:00:00.000Z"
            }
          ],
          "summary": "…<=120-word answer synthesized from live sources…",
          "confidence": "medium",
          "disclosure": "AI-synthesized from live web sources…",
          "generated_at": "2026-09-18T00:00:00.000Z",
          "key_findings": [
            {
              "point": "…concrete fact from a source…",
              "source_url": "https://example.com/article",
              "source_date": "2026-09-01",
              "source_title": "Example article"
            }
          ]
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "topic"
              ],
              "properties": {
                "focus": {
                  "type": "string",
                  "maxLength": 300
                },
                "topic": {
                  "type": "string",
                  "maxLength": 200,
                  "minLength": 10
                },
                "max_sources": {
                  "type": "integer",
                  "maximum": 6,
                  "minimum": 3
                },
                "recency_days": {
                  "enum": [
                    0,
                    7,
                    30,
                    90,
                    365
                  ],
                  "type": "integer"
                }
              }
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog: 2026-09-21 15:16Z
Last indexed by Roundhouse: 2026-10-20 05:15Z
Last enriched (probe, favicon, geo): —
x402 version: 2
Max timeout: 300s
Liveness probe: Not probed

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

Nothing indexed for this service or its provider yet. Not a claim that it is unused — only that we hold no record. 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 Research Brief API 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=Research%20Brief%20API'
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://preview-chat-985505b1-9dc0-470f-9fc3-3704d8b625e3.space-z.ai/api/x402/research-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. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://preview.roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

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