x402 census · mcp.barker.money · c8701a5b488d · JSON
GET /barker_defi_vaults
unprobed
Query real-time stablecoin supply yield pools from Barker's index of 500+ DeFi protocols. Returns ranked rows with protocol_name, chain_name, asset_symbol, supply_apy_total (decimal — multiply by 100 for %), and supply_tvl (USD). Use for questions like 'best stablecoin yield', 'where to earn on USDC', 'compare lending rates', '稳定币利率'.
Verdict: not verified by an unpaid GET. not probed yet. This says nothing about whether the route works when called as declared.
Facts from the catalogs
| Field | Value |
|---|---|
| URL | https://mcp.barker.money/barker_defi_vaults |
| Method | GET |
| Price | $0.001 USDC = 1000 atomic units of 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913 |
| Network | eip155:8453 (base); also accepts eip155:196, eip155:1, eip155:137, eip155:42161 |
| payTo | 0x83f15f5bea445109e255ab82622fbdfecd1e4c9f |
| Seller | mcp.barker.money |
| Catalogs | cdp (row updated 2026-09-30) |
| Listed since (lower bound) | 2026-09-30 (earliest catalog timestamp; catalogs report last-update times only) |
| Last catalog update | 2026-09-30 |
| CDP quality counters | 71 calls and 4 unique payers in 30 days, last call 2026-09-30 (catalog-reported, not verified on chain) |
| Category (keyword rule) | crypto-data |
| Templated path | no |
| x402Version in catalog | 2 |
| Service name / tags | Barker |
Unpaid probe (census of )
| Field | Value |
|---|---|
| Probe | not probed in this build |
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 |
|---|---|
| Distinct payers | 4 |
| Payments | 6 |
| USDC volume | $0.02 |
| Median payment | $0.001 |
| First / last payment | 2026-07-27 / 2026-09-27 |
| Sampler-shaped share of payments | 100.0% |
| Payers that are not samplers | 0 |
| Source | forensics-2026-09-30 |
| Address | 0x83f15f5bea445109e255ab82622fbdfecd1e4c9f |
Declared input and output (extensions.bazaar)
{
"input": {
"method": "GET",
"queryParams": {
"asset": "usdc",
"chain": "base",
"limit": 10,
"sort": "apy"
},
"type": "http"
},
"output": {
"type": "json",
"example": {
"data": [
{
"asset_symbol": "USDC",
"chain_name": "ethereum",
"pool_uid": "aave-v3_ethereum_usdc_supply",
"protocol_name": "Aave V3",
"supply_apy_total": 0.0523,
"supply_tvl": 1234567890
}
],
"success": true
}
}
}
Try it (unpaid: shows the 402)
curl -si -X GET 'https://mcp.barker.money/barker_defi_vaults' -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/c8701a5b488d/probe.json re-runs this probe right now for $0.01 and writes the result here. POST https://bazaar.agentexchange.work/featured with {"id":"c8701a5b488d"} 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 mcp.barker.money.