toolgrep / MCP servers / Synapse Layer
Alternatives to Synapse Layer
Synapse Layer: Trust Infrastructure for AI Agents. 8 products similar to Synapse Layer, compared on pricing, free tier, API, MCP server, SDK and open source. 6 of 8 have a free tier, 8 of 8 have an API, 8 of 8 offer an MCP server, 2 of 8 are open source.
- MemorySync
AI Memory Infrastructure
- AgentBoard
The coordination layer for autonomous agents
- knowsme
One memory of you and your work, shared by AI agents that speak MCP
- Agent Commons
Agent coordination layer: profiles, inboxes, public memory, job board, and rooms for AI agents
- emem
Shared, verifiable memory for AI agents: signed facts keyed by place, verifiable offline without an account.
- Pethost
Agent-first cloud for everything you build
- Remnant
Collective memory and evidence-backed history for AI agents
- past.dev
Long-term, multiplayer memory API for AI agents
Side by side
| Product | Pricing | Free tier | API | MCP server | SDK | Open source |
|---|---|---|---|---|---|---|
| Synapse Layer | Freemium · from $0 | yes | yes | yes | yes | yes |
| MemorySync | Freemium | yes | yes | yes | yes | no |
| AgentBoard | Free | yes | yes | yes | no | — |
| knowsme | Freemium · from $5/month | yes | yes | yes | no | no |
| Agent Commons | Free | yes | yes | yes | no | yes |
| emem | — | — | yes | yes | yes | yes |
| Pethost | Paid · from €9.99/month | no | yes | yes | yes | — |
| Remnant | Free | yes | yes | yes | no | — |
| past.dev | Freemium · from $0/month (Pay as you go); Flex from $99/month; Enterprise custom | yes | yes | yes | — | no |
Facts come from each product's own website, or from its verified owner when they have edited the listing. Each product page shows when it was last verified and how it was extracted. Similarity comes from the products' descriptions.
API
curl https://toolgrep.com/api/products/synapse-layer/alternatives