Limited beta — the Skylit API is in limited beta. Create and manage keys in the Developer tab of the Skylit app.
The Skylit MCP server lets an AI agent — Claude, Cursor, or any
Model Context Protocol client — query Skylit’s
market data directly, in natural language. Ask “were there unusual bullish
sweeps on TSLA on Friday?” and the agent calls the right tool, reads the result,
and answers.
It is a single unified gateway over both Skylit products:
- Flowseeker (
flow_*, plus screeners and stats) — scored options trades, sweeps, tide, momentum, moneyness, ratios, sector and market-wide flow. - Heatseeker (
heat_*) — live and historical per-strike gamma/vanna heatmaps.
Endpoint
POST, responses as
Server-Sent Events). Most MCP clients only need the URL plus your key — see the
quickstart.
Every tool call costs the same credits as the equivalent REST endpoint. The
per-tool cost is listed in the tool catalog, and each
result’s
meta carries your remaining credit balance.Authentication
Supply your Skylit API key on the MCP connection — either header works, and the same key spans both products:Guardrails
To keep agent sessions predictable, the gateway enforces a per-session call budget and an in-flight concurrency limit. If a session exceeds them, the tool returns an error explaining the limit rather than running unbounded — credits are only ever debited for calls that actually reach the data API.Quickstart
Connect Claude Desktop or Cursor in a couple of minutes.
Tool catalog
All 38 tools, grouped, with credit costs.
Example prompts
What to ask, and which tools answer it.
REST API Reference
Prefer plain HTTP? Use the same data over REST.