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Synapse Layer — Continuous Consciousness Infrastructure

synapselayer/synapse-layer
913 toolsauthSTDIO, HTTPregistry active
Summary

Persistent memory for Claude and other MCP clients, backed by encrypted storage and semantic search. Exposes 13 tools including recall, save_to_synapse, and neural_handover for cross-session context. Memories are encrypted at rest with AES-256-GCM and indexed via pgvector for semantic retrieval. Works standalone via Python SDK or connects to their Forge cloud API for cross-agent memory sharing. Integrates with Claude Desktop, Cursor, LangChain, and CrewAI. Reach for this when you need your agent to remember user preferences, prior decisions, or conversation context across sessions without rebuilding RAG infrastructure from scratch.

Install to Claude Code

verified
claude mcp add --transport http synapse-layer https://forge.synapselayer.org/api/mcp

Run in your terminal. Add --scope user to make it available in every project.

Review the command, arguments, and environment values before installing — MCP servers run with your local permissions.

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Tools

Verified live against the running server on Jun 10, 2026.

verified live13 tools
recallRetrieve relevant persisted memory using semantic, temporal, priority, or hybrid routing. Governance: requires reason (10–200 chars). Rate limit: 20/min.6 params

Retrieve relevant persisted memory using semantic, temporal, priority, or hybrid routing. Governance: requires reason (10–200 chars). Rate limit: 20/min.

Parameters* required
modestring
Recall routing mode. "temporal" = pure chronological, "semantic" = FTS + TQ ranking, "priority" = critical/high-TQ first, "hybrid" = weighted blend, "auto" = detect from query (default).one of auto · temporal · semantic · priority · hybrid
limitnumber
Maximum memories to return (1–50, default: 10).
query*string
What to recall — natural language query for memory retrieval.
scopestring
Explicit memory scope. "agent" (default, fail-closed) = limits recall to the given agent_id (or the token agent). "tenant" = cross-agent recall within the authenticated tenant. If omitted with agent_id present, "agent" is inferred; if both omitted, the token agent is used (verified-token scope).one of agent · tenant
reason*string
REQUIRED (10–200 chars). Audit policy: MEMORY_EXPORT_GOVERNANCE_V1. Human-readable justification for retrieving PLAINTEXT memory. Without this parameter the call WILL fail with code -32602. Example: "User asked me to summarize last week decisions."
agent_idstring
Agent identifier (canonical or alias). Used only when scope="agent" or scope is inferred.
save_to_synapsePersist memory with encryption at rest, sanitization, and deduplication controls.6 params

Persist memory with encryption at rest, sanitization, and deduplication controls.

Parameters* required
tagsarray
Tags for categorization.
typestring
Event type: [MILESTONE], [DECISION], [ALERT], [AUTO-STRAT], [AUTO-OP], [AUTO-INSIGHT], [AUTO-DECISION], [AUTO-CONTEXT], [MANUAL].
content*string
The memory content to store securely.
projectstring
Project identifier (e.g., SYNAPSE_LAYER).
agent_idstring
Agent identifier for memory isolation. Defaults to "default".
importancenumber
Importance level 1–5 (default: 3).
process_textExtract candidate memories from free-form text with governance filters and sanitization.4 params

Extract candidate memories from free-form text with governance filters and sanitization.

Parameters* required
text*string
Free-form text to scan for auto-save triggers.
sourcestring
Source identifier (default: mcp).
projectstring
Force a specific project (e.g., SYNAPSE_LAYER, OFFLY). Auto-detected if omitted.
agent_idstring
Agent identifier. Defaults to "default".
searchSearch persisted memory across agent scopes using full-text matching.4 params

Search persisted memory across agent scopes using full-text matching.

Parameters* required
limitnumber
Maximum results to return (1–50, default: 20).
query*string
Search query — natural language or keywords.
scopestring
Explicit search scope. "agent" (default, fail-closed) = limits search to the given agent_id (or the token agent). "tenant" = cross-agent search within the authenticated tenant. If omitted with agent_id present, "agent" is inferred; if both omitted, the token agent is used (verified-token scope).one of agent · tenant
agent_idstring
Agent identifier (canonical or alias). Used only when scope="agent" or scope is inferred.
health_checkCheck service availability, engine version, and storage health. Public method.

Check service availability, engine version, and storage health. Public method.

No parameters — call it with no arguments.

initialize_contextInitialize a persistent memory context for a conversation or agent session.

Initialize a persistent memory context for a conversation or agent session.

No parameters — call it with no arguments.

save_memorySave a memory entry to the persistent store. Alias of save_to_synapse.3 params

Save a memory entry to the persistent store. Alias of save_to_synapse.

Parameters* required
tagsarray
Tags for categorization.
content*string
The memory content to store securely.
agent_idstring
Agent identifier for memory isolation.
store_memoryStore structured memory with metadata and trust scoring.3 params

Store structured memory with metadata and trust scoring.

Parameters* required
tagsarray
Tags for categorization.
content*string
The memory content to store securely.
agent_idstring
Agent identifier for memory isolation. Defaults to "default".
recall_memoryRecall persisted memory by query. Alias of recall.6 params

Recall persisted memory by query. Alias of recall.

Parameters* required
modestring
Recall routing mode.one of auto · temporal · semantic · priority · hybrid
limitnumber
Maximum memories to return (1–50, default: 10).
query*string
What to recall — natural language query for memory retrieval.
scopestring
Explicit memory scope. "agent" (default, fail-closed) = limits recall to the given agent_id (or the token agent). "tenant" = cross-agent recall within the authenticated tenant. If omitted with agent_id present, "agent" is inferred; if both omitted, the token agent is used (verified-token scope).one of agent · tenant
reason*string
REQUIRED (10–200 chars). Audit policy: MEMORY_EXPORT_GOVERNANCE_V1. Without this the call WILL fail with code -32602. Example: "Checking user project status."
agent_idstring
Agent identifier (canonical or alias). Used only when scope="agent" or scope is inferred.
list_memoriesList memory metadata with pagination and governance limits.3 params

List memory metadata with pagination and governance limits.

Parameters* required
limitnumber
Maximum memory metadata rows to return. Hard-capped: default 5, max 10. Values above 10 are silently reduced to 10.
scopestring
Explicit memory scope. "agent" (default, fail-closed) = lists memories for the given agent_id (or the token agent). "tenant" = lists memories across all agents of the authenticated tenant.one of agent · tenant
agent_idstring
Agent identifier (canonical or alias). Used only when scope="agent" or scope is inferred.
memory_feedbackSubmit feedback to adjust trust scoring for stored memories.3 params

Submit feedback to adjust trust scoring for stored memories.

Parameters* required
signal*string
Feedback signal: used (auto), helpful (positive), irrelevant (negative), ignored.one of used · ignored · helpful · irrelevant
memoryId*string
ID of the memory to provide feedback on.
sessionIdstring
Optional session identifier for tracking.
neural_handoverTransfer contextual state between agents with continuity controls.3 params

Transfer contextual state between agents with continuity controls.

Parameters* required
token*string
The handover token (64 hex chars). Generated by the source agent/user in Forge UI.
reason*string
REQUIRED (10–200 chars). Human-readable justification for consuming this handover. Example: "Receiving project context from Claude session."
consuming_agentstring
Agent identifier consuming the handover (defaults to token agent).
slo_reportReturn uptime and SLO metrics for the MCP service.2 params

Return uptime and SLO metrics for the MCP service.

Parameters* required
admin_token*string
Admin authentication token. Must match ADMIN_TOKEN environment variable.
window_hoursarray
Time windows in hours for the report. Default: [24, 168] (24h + 7d).

npm version npm version npm downloads License: Apache-2.0

npm downloads License: Apache-2.0

🧠 Synapse Layer

RAG retrieves. Synapse remembers.

Persistent memory infrastructure for AI agents — AES-256-GCM encrypted at rest, semantic search, MCP-native.

Synapse Layer is open-source persistent memory infrastructure for AI agents and assistants. Memories are encrypted at rest with AES-256-GCM, indexed via pgvector HNSW for semantic recall, and exposed through MCP JSON-RPC for native integration with Claude, GPT, Gemini, and any MCP-compatible client. Apache 2.0 licensed.

PyPI Python Downloads MCP Compatible License: Apache-2.0 Smithery

Website · Docs · PyPI · Forge


⚡ 30-Second Quickstart

pip install synapse-layer
from synapse_layer import Synapse

s = Synapse(token="sk_connect_YOUR_TOKEN")

s.save("user likes coffee")
print(s.recall("what does user like?"))

Get your token at forge.synapselayer.org → Dashboard → Connect


What is Synapse Layer?

The persistent memory layer for AI agents — the missing piece between stateless LLMs and real continuity of context.

Your AI agents forget everything between sessions. Synapse Layer fixes that.

FeatureDescription
🔐 Encrypted at restAES-256-GCM with per-operation random IV and HMAC-SHA-256 integrity
🧩 One-click connectClaude Desktop, Cursor, LangChain, CrewAI, n8n
🌐 Cross-agent memorySave in ChatGPT, recall in Claude
⚡ MCP-nativeAny MCP-compatible agent
🔒 Header-first authTokens never in URLs or logs
🎯 Trust QuotientDeterministic recall — memories ranked by confidence, not recency alone

Why Synapse Layer?

Your AI agents forget everything between sessions. Synapse Layer fixes that — in one line.

Without Synapse LayerWith Synapse Layer
Agent forgets context every sessionPersistent memory across all sessions
Memory locked to one modelCross-agent: save in ChatGPT, recall in Claude
No audit trailTrust Quotient scoring on every memory
Complex integrationpip install synapse-layer + 3 lines of code
Plaintext stored on serversAES-256-GCM encrypted at rest

Use Cases

  • Long-term assistant memory — persist user preferences, facts, and prior decisions across sessions.
  • Cross-agent continuity — save context in one agent and recall it in another.
  • Secure memory for MCP clients — connect Claude Desktop, Cursor, and other MCP-compatible tools to a governed memory layer.
  • Operational memory for teams — maintain structured context, trust scoring, and searchable recall for production agents.

Install

pip install synapse-layer

Quick Start

Local SDK — in-process memory

import asyncio
from synapse_layer import SynapseClient

async def main():
    memory = SynapseClient(agent_id="my-agent")

    # Save
    await memory.store("User prefers dark mode and concise answers")

    # Recall
    results = await memory.recall("user preferences")
    for r in results:
        print(f"[TQ={r.trust_quotient:.2f}] {r.content}")

asyncio.run(main())

Cloud — Forge API (persistent, cross-agent)

from synapse_memory.client import Synapse

client = Synapse(token="sk_connect_YOUR_TOKEN")
client.remember("User prefers dark mode and concise answers")
results = client.recall("user preferences")
for r in results:
    print(r["content"])

Get your token at forge.synapselayer.org → Dashboard → Connect


13 MCP Tools at a Glance

Synapse Layer currently exposes 13 MCP tools for persistent memory workflows:

  • recall
  • save_to_synapse
  • process_text
  • search
  • health_check
  • initialize_context
  • save_memory
  • store_memory
  • recall_memory
  • list_memories
  • memory_feedback
  • neural_handover
  • slo_report

These tools cover memory capture, semantic recall, structured storage, feedback loops, agent handoff, and operational observability.


Deployment Modes

Local SDK

Use the local SDK when you want in-process memory access inside your Python application.

Best for:

  • local prototypes
  • Python-native workflows
  • fast integration into existing apps

Cloud / Forge API

Use Forge when you need persistent, cross-session, and cross-agent memory with managed access tokens.

Best for:

  • production assistants
  • multi-agent systems
  • MCP-based integrations
  • shared memory across tools and sessions

MCP Integration (Claude Desktop / Cursor)

Add to claude_desktop_config.json:

{
  "mcpServers": {
    "synapse-layer": {
      "command": "npx",
      "args": [
        "mcp-remote",
        "https://forge.synapselayer.org/mcp",
        "--header",
        "x-connect-token: sk_connect_YOUR_TOKEN"
      ]
    }
  }
}

Config file location:

  • macOS: ~/Library/Application Support/Claude/claude_desktop_config.json
  • Windows: %APPDATA%\Claude\claude_desktop_config.json
  • Linux: ~/.config/Claude/claude_desktop_config.json

API — Header-First Auth

# Health check
curl -H "x-connect-token: sk_connect_YOUR_TOKEN" \
  https://forge.synapselayer.org/api/connect/health

# Save memory
curl -X POST \
  -H "x-connect-token: sk_connect_YOUR_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"content": "User is a Python developer"}' \
  https://forge.synapselayer.org/api/v1/capture

Security

FeatureImplementation
EncryptionAES-256-GCM at rest with per-operation random IV
IntegrityHMAC-SHA-256 on content
AuthHeader-first (x-connect-token) — tokens never in URLs or logs
PrivacyContent sanitization + tenant-scoped encrypted storage
Isolation1 user = 1 tenant = 1 private mind

See SECURITY.md for vulnerability reporting.


Related Projects

ProjectDescription
synapse-sdk-pythonPython SDK — LangChain, CrewAI, and A2A protocol adapters
synapse-layer-skillMCP skill configuration for Claude Desktop, Cursor, Windsurf
synapse-layer-langgraphLangGraph checkpoint saver with encrypted state persistence

Governance

  • All public claims follow the Public Claims Matrix.
  • Architecture details that reveal benefits are public; mechanisms that enable them are private.
  • Claim = Reality. If it's not implemented, it's not in the README.

License

Apache-2.0 © Synapse Layer

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Configuration

SYNAPSE_AGENT_IDdefault: default-agent

Identifier for the agent using the memory layer.

SYNAPSE_PRIVACY_EPSILONdefault: 0.5

Differential privacy epsilon parameter. Lower = stronger privacy. Range: 0.1–2.0.

SYNAPSE_ENCRYPTION_KEYsecret

AES-256-GCM encryption key for at-rest memory encryption. Auto-generated if not provided.

LOG_LEVELdefault: INFO

Logging verbosity: DEBUG, INFO, WARNING, ERROR.

Categories
Documents & KnowledgeSecurity & Pentesting
Registryactive
Packagesynapse-layer
TransportSTDIO, HTTP
AuthRequired
Tools verifiedJun 10, 2026
UpdatedApr 12, 2026
View on GitHub

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