x402 census · crypto-market-data.zafermemon87.workers.dev · 31e16b56e317 · JSON
GET /mcp
open
Funding rate per 8 hours, futures premium, open interest with 1-hour and 24-hour change, and long/short account ratio per coin. Costs USD 0.003 per call, paid with x402 (USDC on Base); calls that fail are not charged.
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://crypto-market-data.zafermemon87.workers.dev/mcp#derivatives#derivatives |
| Method | GET |
| Price | $0.003 USDC = 3000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base) |
| payTo | 0xa41015022322640f03a895bc439da80ddfd73954 |
| Seller | crypto-market-data.zafermemon87.workers.dev |
| Catalogs | cdp (row updated 2026-10-24) |
| Listed since (lower bound) | 2026-10-24 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-10-24 |
| CDP quality counters | 1 calls and 1 unique payers in 30 days, last call 2026-10-24 (catalog-reported, not verified on chain) |
| Category (keyword rule) | crypto-data |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | none |
Unpaid probe (census of 2026-10-25)
| Field | Value |
|---|---|
| Probed at | 2026-10-25T21:14:22.629Z |
| HEAD | 405 |
| GET | 200 |
| Verdict | open 200: serves without a payment challenge |
| 402 carried in | n/a |
| x402Version in the 402 | n/a |
| accepts[0] | none |
| Live amount equals catalog price | not comparable |
| Live payTo equals catalog payTo | not comparable |
| extensions.bazaar in the 402 | no |
| PAYMENT-REQUIRED header | no |
| WWW-Authenticate offer | none |
| Content type / server / CORS | application/json / cloudflare / * |
| Latency | 121 ms |
| Error | none |
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": {
"description": "Funding rate per 8 hours, futures premium, open interest with 1-hour and 24-hour change, and long/short account ratio per coin. Costs USD 0.003 per call, paid with x402 (USDC on Base); calls that fail are not charged.",
"example": {
"tokens": "BTC,ETH"
},
"inputSchema": {
"properties": {
"tokens": {
"description": "Comma-separated tickers, e.g. BTC,ETH,SOL (up to 50). Empty means all top 50.",
"type": "string"
}
},
"type": "object"
},
"toolName": "derivatives",
"transport": "streamable-http",
"type": "mcp"
},
"output": {
"type": "json",
"example_truncated": true,
"chars": 814
}
}
Try it (unpaid: shows the 402)
curl -si -X GET 'https://crypto-market-data.zafermemon87.workers.dev/mcp#derivatives#derivatives' -H 'accept: application/json'
The catalog declares GET. 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/31e16b56e317/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"31e16b56e317"} 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 crypto-market-data.zafermemon87.workers.dev.