x402 census · gpt.558686.xyz · f350cc70e398 · JSON
POST /v1/chat/completions
live
No description in any catalog.
Verdict: live. The unpaid GET reached a valid 402 (confirmed by the re-probe of 2026-10-02).
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://gpt.558686.xyz/v1/chat/completions |
| Method | POST |
| Price | $0.05 USDC = 50000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0x1f0130669ca6fd02e025a984cc038f139df19a2f |
| Seller | gpt.558686.xyz |
| Catalogs | cdp (row updated 2026-09-29) |
| Listed since (lower bound) | 2026-09-29 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-29 |
| CDP quality counters | 2 calls and 1 unique payers in 30 days, last call 2026-09-29 (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 | 2026-10-02T11:13:42.000Z (cron) |
| Verdict now | live changed from unprobed |
| HEAD / GET | 402 / 402 |
| accepts[0] | {"scheme":"exact","network":"eip155:8453","amount":"50000","payTo":"0x1f0130669ca6fd02e025a984cc038f139df19a2f","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}} |
| Live amount equals catalog price | yes |
| Latency | 1,700 ms |
| Error | none |
On-chain facts for the payTo (public address)
| Field | Value |
|---|---|
| Distinct payers | 74 |
| Payments | 175 |
| USDC volume | $0.40 |
| Median payment | $0.0029 |
| First / last payment | 2026-06-23 / 2026-09-30 |
| Sampler-shaped share of payments | 100.0% |
| Payers that are not samplers | 0 |
| Source | forensics-2026-09-30 |
| Address | 0x1f0130669ca6fd02e025a984cc038f139df19a2f |
Declared input and output (extensions.bazaar)
{
"input": {
"body": {
"max_tokens": 256,
"messages": [
{
"content": "You are a helpful assistant.",
"role": "system"
},
{
"content": "Write a haiku about micropayments.",
"role": "user"
}
],
"model": "gpt-6-sol",
"temperature": 0.7
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"type": "json",
"example": {
"choices": [
{
"finish_reason": "stop",
"index": 0,
"message": {
"content": "...",
"role": "assistant"
}
}
],
"created": 1759100000,
"id": "chatcmpl-1759100000000",
"model": "gpt-6-sol",
"object": "chat.completion",
"usage": {
"completion_tokens": 40,
"prompt_tokens": 30,
"total_tokens": 70
}
}
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://gpt.558686.xyz/v1/chat/completions' -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/f350cc70e398/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"f350cc70e398"} 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 gpt.558686.xyz.