CSL — declarative schemas
Describe what data you have in a terse domain-specific language. CSL compiles to Postgres DDL, an MCP tool surface, and typed SDK clients.
SealStack
The platform knows what your tools know.
What it is
SealStack is an open-source, enterprise-grade context platform. It ingests data from your tools, indexes it with hybrid BM25+vector retrieval, and exposes MCP tools plus a REST API that every AI agent in your organization can call.
Every search returns a receipt — the sources it read, the policies it enforced, and the time each stage cost. Those receipts are first-class primitives, not an afterthought.
Connectors
Pull from GitHub, Slack, local files out of the box. The connector SDK is a single trait — add a new source in an afternoon.
MCP-native
Every schema auto-registers search_*, get_*, list_*, and aggregate
tools compatible with MCP 2025-11-25 streamable HTTP.
Receipts
Every answer carries a cryptographic receipt. Debug “why did I see this?” in the console or replay the query from the receipt id.
Questions, press, partnerships — hello@sealstack.ai. Full contact list on the Contact page.