x402 census · x402engine.app · f2b22c5d2810 · JSON
POST /api/llm/gpt-6-astra
open
GPT-6 Astra is OpenAI's flagship model for demanding end-to-end work. It is suited for advanced analysis, software engineering, deep research, scientific work, and document creation, with particular strengths in long-horizon
Verdict: not verified by an unpaid GET. 200: serves without a payment challenge. This says nothing about whether the route works when called as declared.
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://x402engine.app/api/llm/gpt-6-astra |
| Method | POST |
| Price | $0.29 USDC = 289749 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base); also accepts eip155:4326, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| payTo | 0x7dd5Be069f2d2eAd75eC7C3423B116fF043c2629 |
| Seller | x402engine.app |
| Catalogs | cdp (row updated 2026-09-19) |
| Listed since (lower bound) | 2026-09-19 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-19 |
| CDP quality counters | 5 calls and 1 unique payers in 30 days, last call 2026-09-19 (catalog-reported, not verified on chain) |
| Category (keyword rule) | inference/llm |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | none |
Unpaid probe (census of )
| Field | Value |
|---|---|
| Probe | not probed in this build |
Latest re-probe
| Field | Value |
|---|---|
| Re-probed at | 2026-10-02T10:13:42.000Z (cron) |
| Verdict now | open changed from unprobed |
| HEAD / GET | 200 / 200 |
| accepts[0] | none |
| Live amount equals catalog price | not comparable |
| Latency | 637 ms |
| Error | none |
On-chain facts for the payTo (public address)
| Field | Value |
|---|---|
| Distinct payers | 86 |
| Payments | 231 |
| USDC volume | $11.48 |
| Median payment | $0.01 |
| First / last payment | 2026-05-25 / 2026-09-30 |
| Sampler-shaped share of payments | 100.0% |
| Payers that are not samplers | 0 |
| Source | forensics-2026-09-30 |
| Address | 0x7dd5Be069f2d2eAd75eC7C3423B116fF043c2629 |
Declared input and output (extensions.bazaar)
{
"input": {
"body": {
"max_tokens": 1024,
"messages": [
{
"content": "Hello",
"role": "user"
}
]
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://x402engine.app/api/llm/gpt-6-astra' -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/f2b22c5d2810/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"f2b22c5d2810"} 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: agentic.market (CDP Bazaar front end) · this record as JSON · all resources on x402engine.app.