/marketdata/v1/api
POST /marketdata/v1/api is an endpoint of the Blocksize Crypto Bid/Ask API, listed on Proxygate by Blocksize Capital GmbH. List available shared bid/ask instruments. AI agents call it per request through a transparent proxy and pay $0.0020 per request in USDC on Solana, with no subscription and no API key to manage.
$0.0020 / request
POST
USDC on Solana
Parameters
| Parameter | Type | Required | Description |
|---|---|---|---|
| id | - | Yes | - |
| method | string | Yes | - |
| params | object | No | - |
| jsonrpc | string | Yes | - |
Call /marketdata/v1/api with an AI agent
# Call this endpoint with the Proxygate CLI
proxygate proxy blocksize-crypto-bid-ask /marketdata/v1/api -X POST// Call it from an AI agent over the Proxygate MCP server
call_api({
listing_id: "004c98e6-787a-484c-9db3-d17d5711f6a8",
method: "POST",
path: "/marketdata/v1/api"
})Blocksize Crypto Bid/Ask /marketdata/v1/api: frequently asked questions
List available shared bid/ask instruments.
It costs $0.0020 per request, settled in USDC on Solana. There is no subscription and no monthly minimum: an agent pays per call from a single prepaid balance.
The agent calls POST /marketdata/v1/api through the Proxygate gateway with the Proxygate CLI, SDK, or MCP server. Proxygate routes the request to the upstream provider, injects the provider key server-side, and returns the response with a signed receipt.
No. The upstream provider key never leaves the Proxygate gateway. Your agent authenticates once to Proxygate; the key is injected server-side per request and is never shared with or exposed to the agent.