Api Endpoint

mcp.blocksize.info

Real-time shared bid/ask snapshot data, including crypto pairs and supported equity tickers, from Blocksize Capital.

Open interactive test console

Offering

Provider: mcp.blocksize.info
Method: GET
Offering type: Api Endpoint
Transport type: http
Category: Financial Analysis
Delivery: Not provided
Pricing model: Not provided
x402 version: 2

Endpoint context

URL: https://mcp.blocksize.info/v1/bidask/BTC-USD
MIME type: application/json
First seen: 2026-10-16T01:50:03.832Z
Last seen: 2026-11-04T17:19:50.301Z
Tags: X402, Crypto, FX, metals, market-data, Prices, Finance

Website OpenAPI

Payment pricing

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

Payment option 1: 0.002 USDC
Atomic price: 2000 · Network: solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · Asset: USDC · Scheme: exact
Payment option 2: 0.002 USDC
Atomic price: 2000 · Network: eip155:8453 · Asset: USDC · Scheme: exact

Raw x402 terms

[
  {
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "amount": "2000",
    "payTo": "9qCyPu7sLjnwgcbHYY76eqvtjsrdDxis9nn1sjD8CyJo"
  },
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "2000",
    "payTo": "0x52C76F43aA871B407e242DCc396Ccc54a8C70aDe"
  }
]

Observed health

Status: Healthy
Latest latency: 150 ms
Average latency: 277 ms
HTTP status: 402
Last checked: 2026-11-02T07:45:17.431Z
Reachability: 100% over 14 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",
      "const": "GET"
    },
    "queryParams": {
      "type": "object",
      "properties": {},
      "additionalProperties": false
    }
  },
  "required": [
    "type",
    "method"
  ],
  "additionalProperties": false
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "method": {
          "const": "GET",
          "type": "string"
        },
        "queryParams": {
          "additionalProperties": false,
          "properties": {},
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "description": "Illustrative response; never live market data.",
          "properties": {
            "data": {
              "description": "Best bid/ask snapshot for a trading pair.",
              "properties": {
                "ask": {
                  "description": "Best ask price",
                  "title": "Ask",
                  "type": "number"
                },
                "bid": {
                  "description": "Best bid price",
                  "title": "Bid",
                  "type": "number"
                },
                "pair": {
                  "description": "Trading pair",
                  "title": "Pair",
                  "type": "string"
                },
                "source": {
                  "default": "blocksize",
                  "description": "Data provider identifier",
                  "title": "Source",
                  "type": "string"
                },
                "spread": {
                  "description": "Absolute spread (ask - bid)",
                  "title": "Spread",
                  "type": "number"
                },
                "spread_pct": {
                  "description": "Spread as percentage",
                  "title": "Spread Pct",
                  "type": "number"
                },
                "timestamp": {
                  "description": "Data timestamp (UTC)",
                  "format": "date-time",
                  "title": "Timestamp",
                  "type": "string"
                }
              },
              "required": [
                "pair",
                "bid",
                "ask",
                "spread",
                "spread_pct",
                "timestamp"
              ],
              "title": "BidAskData",
              "type": "object"
            },
            "meta": {
              "type": "object"
            },
            "status": {
              "type": "string"
            }
          },
          "required": [
            "status",
            "data",
            "meta"
          ],
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}