BMLL Market Data API

Retrieve per-instrument market state and consolidated best bid and offer (CBBO) for listings on a given day, with an async poll-for-result request pattern. Documented publicly through the bmll Python SDK (MarketDataClient); the host is live but requires entitled key-pair credentials (probed 403 without auth).

Documentation

Other Resources

Work with this as data

Every API here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for apis

7 MCP tools reach this
  • find_apisBrowse and filter every API in the catalog.
  • get_api_artifactsOne API's artifacts, grouped by type.
  • get_openapiThe primary OpenAPI for this API.
  • find_similar_apisAPIs that look like this one.
  • apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
  • resolveTurn a domain, URL or GitHub org into the provider it belongs to.
  • find_cohortsEvery scored population of providers in the catalog.
All 92 tools →

Call it yourself

curl for this page
This API
curl "https://apis.io/api/v1/apis/bmll-market-data-api"
All apis
curl "https://apis.io/api/v1/apis?limit=25"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

A second provider on the same verified email joins the account you already have.

API entry from apis.yml

apis.yml Raw ↑
aid: bmll-technologies:bmll-market-data-api
name: BMLL Market Data API
tags:
- Market Data
- Market State
- CBBO
- Quotes
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
humanURL: https://pypi.org/project/bmll/
baseURL: https://market-data.data.bmlltech.com
properties:
- url: https://pypi.org/project/bmll/
  type: Documentation
- url: https://data.bmlltech.com
  type: Portal
description: Retrieve per-instrument market state and consolidated best bid and offer (CBBO) for listings
  on a given day, with an async poll-for-result request pattern. Documented publicly through the bmll
  Python SDK (MarketDataClient); the host is live but requires entitled key-pair credentials (probed 403
  without auth).