x402 census · contextiq.trango-compute.com · c673ba054678 · JSON
POST /api/v1/agent-protocol-inspector/x402-v2
method-gated
Agent Protocol Inspector scan (MCP / A2A / ARD / llms.txt) — per call
Verdict: not verified by an unpaid GET. 405/400: the 402 sits behind the declared method. This says nothing about whether the route works when called as declared.
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://contextiq.trango-compute.com/api/v1/agent-protocol-inspector/x402-v2 |
| Method | POST |
| Price | $0.02 USDC = 20000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0x4eba5ea3cf0f3fc307099317e17e54390f7a4c58 |
| Seller | contextiq.trango-compute.com |
| Catalogs | cdp (row updated 2026-09-18) |
| Listed since (lower bound) | 2026-09-18 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-18 |
| CDP quality counters | 4 calls and 2 unique payers in 30 days, last call 2026-09-18 (catalog-reported, not verified on chain) |
| Category (keyword rule) | agent-services |
| 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 | 2026-10-02T00:13:42.000Z (cron) |
| Verdict now | method-gated changed from unprobed |
| HEAD / GET | 405 / 405 |
| accepts[0] | none |
| Live amount equals catalog price | not comparable |
| Latency | 1,275 ms |
| Error | none |
On-chain facts for the payTo (public address)
| Field | Value |
|---|---|
| Distinct payers | 5 |
| Payments | 43 |
| USDC volume | $0.86 |
| Median payment | n/a |
| First / last payment | 2026-09-13 / 2026-09-19 |
| Sampler-shaped share of payments | n/a |
| Payers that are not samplers | n/a |
| Source | blockscout-sample — newest page of inbound ERC-20 transfers only (<=50); counts are a floor, not a total |
| Address | 0x4eba5ea3cf0f3fc307099317e17e54390f7a4c58 |
Declared input and output (extensions.bazaar)
{
"input": {
"method": "POST",
"schema": {
"properties": {
"url": {
"description": "URL of the agent/service to scan for MCP, A2A, ARD, and llms.txt support",
"type": "string"
}
},
"required": [
"url"
],
"type": "object"
},
"type": "http"
},
"output": {
"example_truncated": true,
"chars": 1590
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://contextiq.trango-compute.com/api/v1/agent-protocol-inspector/x402-v2' -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/c673ba054678/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"c673ba054678"} 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 contextiq.trango-compute.com.