Index onlineMerchant portal
Api Endpoint

Barker

Barker's stablecoin market snapshot: total market cap, yield-bearing cap, asset distribution, chain distribution. Use for 'stablecoin market cap', 'USDT market share', '稳定币市场份额'. share_pct fields are decimals (0.425 = 42.5%).

Open interactive test console

Offering

Provider
mcp.barker.money
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Blockchain And Crypto
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://mcp.barker.money/barker_market_overview
MIME type
application/json
First seen
2026-10-16T01:50:10.647Z
Last seen
Tags
None supplied

Website

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
1000 atomic units
Atomic price: 1000 · Network: eip155:196 · Asset: 0x779ded0c9e1022225f8e0630b35a9b54be713736 · Scheme: exact
Payment option 2
1000 atomic units
Atomic price: 1000 · Network: eip155:196 · Asset: 0x779ded0c9e1022225f8e0630b35a9b54be713736 · Scheme: aggr_deferred
Payment option 3
0.001 USDC
Atomic price: 1000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Payment option 4
1000 atomic units
Atomic price: 1000 · Network: eip155:1 · Asset: 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48 · Scheme: exact
Payment option 5
0.001 USDC
Atomic price: 1000 · Network: eip155:137 · Asset: USDC · Scheme: exact
Payment option 6
0.001 USDC
Atomic price: 1000 · Network: eip155:42161 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:196",
    "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
    "amount": "1000",
    "payTo": "0x1a53ab9f9182d4054fadf385ebfcc53b2902dcc4"
  },
  {
    "scheme": "aggr_deferred",
    "network": "eip155:196",
    "asset": "0x779ded0c9e1022225f8e0630b35a9b54be713736",
    "amount": "1000",
    "payTo": "0x1a53ab9f9182d4054fadf385ebfcc53b2902dcc4"
  },
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "1000",
    "payTo": "0x1a53ab9f9182d4054fadf385ebfcc53b2902dcc4"
  },
  {
    "scheme": "exact",
    "network": "eip155:1",
    "asset": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48",
    "amount": "1000",
    "payTo": "0x1a53ab9f9182d4054fadf385ebfcc53b2902dcc4"
  },
  {
    "scheme": "exact",
    "network": "eip155:137",
    "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
    "amount": "1000",
    "payTo": "0x1a53ab9f9182d4054fadf385ebfcc53b2902dcc4"
  },
  {
    "scheme": "exact",
    "network": "eip155:42161",
    "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
    "amount": "1000",
    "payTo": "0x1a53ab9f9182d4054fadf385ebfcc53b2902dcc4"
  }
]

Observed health

Status
Healthy
Latest latency
1033 ms
Average latency
1186 ms
HTTP status
402
Last checked
Reachability
100% over 15 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {}
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "queryParams": {
          "properties": {},
          "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"
}