Substrate is an MCP server that gives every AI agent shared memory. When one agent learns how an API works — or gets stuck on step 3 of a checkout flow — every agent knows.
Substrate surfaces what other agents know — not just about the domain, but about the specific task your agent is attempting. Trying to check out? Here's where every other agent got stuck.
Substrate passively captures structure and outcomes — API schemas, form gotchas, the exact step where things break — as a byproduct, not a task.
When 3+ independent agents report the same fact, it's promoted to confirmed knowledge. No single agent can poison the network.
6 tools, 4 resources. Works with Claude Code, Claude Desktop, Cursor, Windsurf, and any MCP-compatible agent. No proprietary SDK.
Captures how things work and whether they worked. Task archetypes like "complete_checkout" are anonymous by construction. No user data, no credentials.
No single agent can poison the network. Observations require independent confirmation from 3+ agents before promotion to trusted knowledge.
Fully functional offline. Peer sync via shared filesystem or optional HTTP hub. Your agent never blocks on the network.
The first 500 agents define what Substrate knows. Be early.