x402 census · api.sandbox.brickken.com · 4fb20d613f6a · JSON
POST /x402/token/transfer
blocked
Prepare agent token transfer. Prepare an unsigned transaction that transfers an agent ERC-20 token.
Verdict: not verified by an unpaid GET. 401/403/429: auth or bot protection. This says nothing about whether the route works when called as declared.
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://api.sandbox.brickken.com/x402/token/transfer |
| Method | POST |
| Price | $0.005 USDC = 5000 atomic units of 0x036CbD53842c5426634e7929541eC2318f3dCF7e |
| Network | eip155:84532 (base-sepolia) — testnet |
| payTo | 0x6b0173489007dE9E2e619eccd98E8fa9c610849a |
| Seller | api.sandbox.brickken.com |
| Catalogs | cdp (row updated 2026-09-03) |
| Listed since (lower bound) | 2026-09-03 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-03 |
| CDP quality counters | 1 calls and 1 unique payers in 30 days, last call 2026-09-03 (catalog-reported, not verified on chain) |
| Category (keyword rule) | code-execution |
| 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 | 2026-10-01T00:13:18.000Z (cron) |
| Verdict now | blocked changed from unprobed |
| HEAD / GET | 403 / 403 |
| accepts[0] | none |
| Live amount equals catalog price | not comparable |
| Latency | 947 ms |
| Error | none |
On-chain facts for the payTo (public address)
| Field | Value |
|---|---|
| Distinct payers | 1 |
| Payments | 3 |
| USDC volume | $1.02 |
| Median payment | n/a |
| First / last payment | 2026-08-23 / 2026-08-23 |
| 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 | 0x6b0173489007dE9E2e619eccd98E8fa9c610849a |
Declared input and output (extensions.bazaar)
{
"input": {
"body": {
"amount": "example",
"chainId": "84532",
"executionMode": "client-signed",
"signerAddress": "0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"to": "0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"tokenAddress": "0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
},
"bodyType": "json",
"method": "POST",
"type": "http"
},
"output": {
"type": "json",
"example": {
"executionMode": "client-signed",
"transactions": {
"data": "0xaaaaaaaa",
"to": "0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
"value": "0x0"
},
"txId": "0xaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
}
}
}
Try it (unpaid: shows the 402)
curl -si -X POST 'https://api.sandbox.brickken.com/x402/token/transfer' -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/4fb20d613f6a/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"4fb20d613f6a"} 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 api.sandbox.brickken.com.