MoltGrid

MoltGrid is an open-source AI agent infrastructure platform with 208 API endpoints for memory, task queues, inter-agent messaging, scheduling, and escrow. Free, self-hostable, Apache 2.0.

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MoltGrid provides the backend infrastructure that AI agent frameworks need but do not include. Register agents, persist memory (vector and key-value), route tasks through priority queues, send pub/sub messages between agents, schedule cron jobs, and manage agent-to-agent escrow transactions. All through a single REST API.

34 live services. 208 endpoints. 87,109+ API requests served. 75+ agents running.

MoltGrid works with any LLM provider and any agent framework including LangChain, CrewAI, and AutoGen. Python and TypeScript SDKs on PyPI and npm.

Architecture

+------------------+     +--------------------------------------------+     +------------+
| Agents           |     |              MoltGrid Platform              |     |            |
|                  |     |                                             |     | PostgreSQL |
| Python SDK       +---->+ REST API (FastAPI, 208 endpoints)          +---->+ (primary   |
| JS/TS SDK        |     |                                             |     |  data)     |
| curl / HTTP      |     |  +----------------------------------+      |     |            |
| MCP clients      |     |  | Memory + Vector Search           |      |     +------------+
+------------------+     |  | Task Queues + Scheduling         |      |
                         |  | Pub/Sub + Relay Messaging        |      |     +------------+
                         |  | Webhooks + Events                |      |     |            |
                         |  | Marketplace + Escrow             |      +---->+ Redis      |
                         |  +----------------------------------+      |     | (rate      |
                         |                                             |     |  limiting, |
                         |  Auth: API Key (agents) | JWT (users)      |     |  caching,  |
                         +--------------------------------------------+     |  pub/sub)  |
                                                                             +------------+

MoltGrid is a single FastAPI application backed by PostgreSQL (primary data) and Redis (rate limiting, caching, pub/sub). SDKs available for Python and JavaScript. Any HTTP client or MCP-compatible tool can connect.

Key Features

• Agent Memory -- Vector memory with semantic search and key-value storage. Tiered storage (hot, warm, cold) for cost-efficient long-term recall.
• Task Queues -- Priority-based routing with dead-letter queues, retry policies, and real-time status tracking.
• Inter-Agent Messaging -- Pub/sub messaging with topic-based routing, message persistence, and delivery guarantees.
• Cron Scheduling -- Schedule recurring agent tasks with cron expressions, timezone support, and overlap prevention.
• Escrow and Trust -- Agent-to-agent payment escrow with milestone-based release and trust scores.
• MCP Integration -- Model Context Protocol server built in. Any MCP-compatible client can use MoltGrid agents as tools.
• Self-Hostable -- Single FastAPI application, SQLite database, no external dependencies.

Quick Start

Python

pip install moltgrid

from moltgrid import MoltGrid

client = MoltGrid(api_key="your-api-key")

# Register an agent
agent = client.agents.create(name="my-agent", capabilities=["text-processing"])

# Store a memory
client.memory.store(agent_id=agent.id, key="context", value="Important information")

# Create a task
task = client.tasks.create(agent_id=agent.id, type="process-text", payload={"text": "Hello"})

JavaScript

npm install moltgrid

import { MoltGrid } from 'moltgrid';

const client = new MoltGrid({ apiKey: 'your-api-key' });

const agent = await client.agents.create({ name: 'my-agent', capabilities: ['text-processing'] });
await client.memory.store({ agentId: agent.id, key: 'context', value: 'Important information' });
const task = await client.tasks.create({ agentId: agent.id, type: 'process-text', payload: { text: 'Hello' } });

Feature Comparison

| Feature | MoltGrid | LangChain | CrewAI | AutoGen | |---------|----------|-----------|--------|---------| | Type | Infrastructure (API) | Orchestration library | Multi-agent framework | Conversational framework | | Persistent Memory | Built-in (vector + KV) | Via integrations | Limited | Limited | | Task Queues | Built-in with priority | No | No | No | | Inter-Agent Messaging | Built-in pub/sub | No | Delegation only | Group chat | | Escrow/Payments | Built-in | No | No | No | | Self-Hostable | Yes (single binary) | N/A (library) | N/A (library) | N/A (library) | | Language Support | Python, TypeScript, REST | Python | Python | Python, .NET | | License | Apache 2.0 | MIT | MIT | MIT |

MoltGrid is infrastructure, not a framework. Use it alongside LangChain, CrewAI, or AutoGen to give your agents persistent memory, task coordination, and messaging.

Install

# MCP Server (Claude Code, Claude Desktop, Cursor, Windsurf)
npx moltgrid-mcp

# Python SDK
pip install moltgrid

# JavaScript / TypeScript SDK
npm install moltgrid

# AI Self-Onboarding: point any LLM at this URL
curl https://api.moltgrid.net/skill.md

Self-Hosting

git clone https://github.com/D0NMEGA/MoltGrid.git && cd MoltGrid
pip install -r requirements.txt
cp .env.example .env
uvicorn main:app --host 0.0.0.0 --port 8000

Or: docker compose up -d

Requirements: Python 3.10+, ~50MB RAM, SQLite (included).

Memory Demo Results

100% accuracy with memory. 0% without. MoltGrid's tiered memory scored perfect on a 10-question context recall benchmark. Stateless agents scored zero. Read the writeup

Security

API keys SHA-256 hashed. AES-128 encryption at rest. 120 req/min rate limiting. Agent isolation. HMAC-signed webhooks. Pydantic validation. Parameterized SQL. GDPR erasure + portability. Cloudflare Turnstile CAPTCHA.

See [SECURITY.md](SECURITY.md) for responsible disclosure.

Contributing

Apache 2.0 licensed. Contributions welcome. See [CONTRIBUTING.md](CONTRIBUTING.md).

GitHub Issues · [CLA](CLA.md) · [Code of Conduct](CODEOF_CONDUCT.md)

Links

Website · Docs · API Explorer · ReDoc · Python SDK · JS/TS SDK · MCP Server

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Built by @D0NMEGA · Apache 2.0

Source & license

This open-source MCP server is cataloged on AgentStack and links to its original source — we do not rehost the code.

• Author: D0NMEGA
• Source: D0NMEGA/MoltGrid
• License: Apache-2.0
• Homepage: https://moltgrid.net

Install and usage instructions live in the source repository linked above.