dcostenco/prism-mcp

**Give your AI agent memory that lasts — and see the cloud tokens it never had to spend.** Persistent sessions, knowledge graphs, offline tool-routing, and an auditable savings meter. Fully local and free.
Prism Coder is an MCP server that gives Claude, Cursor, and other AI tools long-term memory that survives across sessions. It ships with the open-weight prism-coder model fleet (2B–27B) for fast, offline tool-routing — no cloud required. And it keeps score: every call served locally is metered, so prism savings shows the token volume that never reached your cloud model — measured honestly, in tokens.
**No account needed. No API keys. Runs on your machine.**
A paid subscription adds cloud sync, higher model tiers, and team features through the Synalux portal.
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What Prism gives you
- **Session memory that survives restarts** — resume projects with handoff notes,
recent work, open TODOs, and configurable quick, standard, or deep context.
- **Local-first inference** — bounded work is routed through local Ollama models
first, with automatic 2B/4B/9B/27B selection based on installed models,
available RAM, context fit, and subscription entitlements.
- **A savings meter you can audit** — prism savings (or the local_savings
tool from any host) reports the token volume local serving kept off your
cloud model: headline, local share, per-model breakdown. It reports tokens,
never an invented dollar figure, and prints its assumptions and known
undercounts inline — a number you can check, not marketing.
- **Route-output enforcement** — route mode returns only well-formed calls to
tools the host actually advertised. Standard and higher plans can add
authenticated deterministic correction; route_guard: "local" disables that
correction only. cloud_fallback: false forbids cloud inference fallback and
verify: false (with no evidence) disables the grounding verifier. With all
three off, no request carries your prompt, draft or evidence; the per-call
entitlement check and telemetry still contact the portal and carry neither.
- **One setup for every agent** — prism connect configures Claude Code,
Claude Desktop, Cursor, Gemini CLI, and Codex while preserving unrelated
settings.
- **Subscription-aware skills** — entitled skills are synchronized before the
host launches, with safe upgrades, downgrades, conflict preservation, and
offline last-good recovery.
- **Hook-free startup** — MCP metadata and native instructions request Prism's
startup context without requiring lifecycle hooks or a Prism-owned launcher.
Where a host offers hooks (Claude Code, Codex), prism connect adds two
small ones on top: mid-session prompt routing, and a post-compaction
re-injection of the protected-floor digest.
- **Prompt-triggered Factory** — enabled by default for suitable bounded
implementation requests with explicit files, an allowed write list, and a
verification command. The host starts and monitors the recommended pipeline;
BCBA requests stay with the host. A dashboard toggle or
PRISM_DARK_FACTORY_ENABLED=false disables Factory after an MCP restart.
Try the three-test filename fix.
- **Safe escalation and observability** — inference outcomes are explicit,
reserved text remains fail-closed (clinical images are processed locally,
never sent to the cloud), and local/cloud usage is recorded for
review.
Get started
Memory search automatically applies ACT-R ranking: relevance plus recency,
frequency and memory associations. No upvote or prompt instruction is required.
To opt out, use **Account & Settings → Preferences → Automatic Memory Ranking
(ACT-R)**, then restart your AI client. PRISM_ACTR_ENABLED=false also disables
it. This ranking is separate from the neural graph's stored importance filter.
Use prism connect --dry-run to preview changes, prism connect --all to
configure every detected host, or prism connect --refresh to reconcile
Prism-managed entries after an upgrade. Restart the host after connecting.
prism dashboard opens the current local Mind Palace without a Synalux login.
Prism works locally without an account, API key, or cloud subscription. Add a
Synalux subscription when you want cloud memory, paid-tier skills, or team
features.
To check your plan, open **⚙ Account & Settings → Account** in the dashboard.
Free users see **Start 14-day trial**; paid users see **Manage subscription**.
During a trial, the same panel shows the paid tier and exact end date. No card
is required to start. Add payment details before the end date to continue; if
you do not, the subscription cancels and local Prism Free remains available.
You can also compare plans directly at synalux.ai/pricing#prism-plans.
After a few sessions, ask what it's been worth: