Query real-time stablecoin supply yield pools from Barker's index of 500+ DeFi p
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'.
Answeringour last check, 2026-09-24
1 of 1checks answered this week
938 msmedian answer time
$0.001listed price per call
$0.001price it asked us
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
GET https://mcp.barker.money/barker_defi_vaults
| Category | Market data |
|---|---|
| Provider host | mcp.barker.money |
| Networks | eip155:1, eip155:137, eip155:196, eip155:42161, eip155:8453 |
| Payment schemes | aggr_deferred, exact |
| Self-reported calls, 30 days | 57 from 4 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-09-24 | valid payment request | 402 | $0.001 | 938 ms |
Example input (from the provider)
{
"method": "GET",
"queryParams": {
"asset": "usdc",
"chain": "base",
"limit": 10,
"sort": "apy"
},
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"method": {
"enum": [
"GET"
],
"type": "string"
},
"queryParams": {
"properties": {
"asset": {
"description": "Stablecoin symbol (lowercase): usdt, usdc, dai, usde, usds, fdusd, gho, crvusd, pyusd, sdai, frxusd, tusd, lusd, dola, etc.",
"type": "string"
},
"chain": {
"description": "Chain name (lowercase): ethereum, bsc, arbitrum, base, polygon, optimism, avalanche, solana, etc.",
"type": "string"
},
"limit": {
"description": "Row count (default 50, max 100)",
"maximum": 100,
"minimum": 1,
"type": "integer"
},
"sort": {
"description": "Sort key",
"enum": [
"apy",
"tvl"
],
"type": "string"
}
},
"type": "object"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}