x402 census · preview-chat-985505b1-9dc0-470f-9fc3-3704d8b625e3.space-z.ai · 776b22dde7a3 · JSON
POST /api/x402/research-brief
unprobed
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.
Verdict: not verified by an unpaid GET. not probed yet. This says nothing about whether the route works when called as declared.
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://preview-chat-985505b1-9dc0-470f-9fc3-3704d8b625e3.space-z.ai/api/x402/research-brief |
| Method | POST |
| Price | $0.05 USDC = 50000 atomic units of 0x036CbD53842c5426634e7929541eC2318f3dCF7e |
| Network | eip155:84532 (base-sepolia) — testnet |
| payTo | 0x40560Fa6E0908932Ab8F7bf8B2AFA18533e044Cc |
| Seller | preview-chat-985505b1-9dc0-470f-9fc3-3704d8b625e3.space-z.ai |
| Catalogs | payai (row updated 2026-09-21) |
| Listed since (lower bound) | 2026-09-21 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-21 |
| CDP quality counters | not in the CDP catalog |
| Category (keyword rule) | dev-tools/utilities |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | Research Brief API · research, web-search, synthesis, citations |
Unpaid probe (census of )
| Field | Value |
|---|---|
| Probe | not probed in this build |
No hourly re-probe has reached this resource yet; the cron covers a rotating slice of 150 per hour.
On-chain facts for the payTo (public address)
| Field | Value |
|---|---|
| Settlement history | unresolved: payTo not seen in the payer forensics (180 wallets' outbound history) or the Blockscout sample |
Declared input and output (extensions.bazaar)
{
"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_truncated": true,
"chars": 614
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://preview-chat-985505b1-9dc0-470f-9fc3-3704d8b625e3.space-z.ai/api/x402/research-brief' -H 'accept: application/json' -H 'content-type: application/json' --data '{}'
The catalog declares POST. A 402 answer carries the payment requirements in the JSON body and, for x402 v2, base64 in the PAYMENT-REQUIRED header. This page never sends a payment.
Paid checks (x402, USDC on Base)
GET https://bazaar.agentexchange.work/r/776b22dde7a3/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"776b22dde7a3"} places this resource at the top of the report and search pages for 30 days for $1.00, labelled. Unpaid requests answer 402 with the terms. Pricing.
Catalog references: PayAI listing status · this record as JSON · all resources on preview-chat-985505b1-9dc0-470f-9fc3-3704d8b625e3.space-z.ai.