Skip to content

Memory MCP Server vs Spell.so: Pricing and Ratings Compared (2026)

Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for Memory MCP Server and Spell.so side by side. This page compares data; it is not a hands-on review.

On the data: On the data below, Memory MCP Server leads on a free plan. We do not name an overall winner for this pair.

Data comparison compiled by Toolradar, not hand-reviewed Methodology
Data comparison Pricing checked Oct 18, 2026

Short on time? Here's the quick answer

Based on published vendor pricing and features and on public review data, here's who should pick what:

Memory MCP Server

Persistent memory MCP server, your AI remembers context across conversations

Best for you if:

  • • You want a fully free tool (Spell.so requires payment)

Spell.so

Delegate tasks to autonomous AI agents and transform your daily work with intuitive AI tools.

Best for you if:

  • • You want automates a wide range of tasks using AI agents
At a glance: Memory MCP Server vs Spell.so
At a Glance
Memory MCP Server Memory MCP Server
Spell.so Spell.so
Starts at
Free 100% free
From $7.50/mo, billed yearly Personal plan
Category
AI Assistants Productivity
AI Assistants Workflow Automation
Rating
n/a n/a
Free plan
Yes No
Watch out for
n/a No overage credit purchases available

Choose Memory MCP Server or Spell.so?

Memory MCP Server

Choose Memory MCP Server if

  • You want a fully free tool (Spell.so requires payment)
  • You want AI remembers project decisions and preferences between sessions
  • You want privacy-friendly, no data leaves your machine
Spell.so

Choose Spell.so if

  • You want automates a wide range of tasks using AI agents
  • You want allows parallel execution of multiple AI tasks, saving time

In-Depth Analysis

Memory MCP Server Memory MCP Server

Persistent memory MCP server, your AI remembers context across conversations

Great value

The pricing for Memory MCP Server is exceptionally generous, as the only listed tier is "Open Source" and "Free." This makes it an incredibly accessible option for anyone looking to implement a persistent memory MCP server without any direct cost.

Strengths

  • Pro: AI remembers project decisions and preferences between sessions
  • Pro: Privacy-friendly, no data leaves your machine

Weaknesses

  • Con: Memory is local, not shared across devices
  • Con: Graph can grow large over time without cleanup

Key features

Create typed entities as nodes in a persistent knowledge graph Create directed relations between entities to record how they connect Attach and delete individual observations as discrete facts on an entity Search nodes by query across names, types, and observation text Open specific nodes by name or read the full graph Local file persistence so memory survives restarts and stays on the user's machine

Spell.so Spell.so

Delegate tasks to autonomous AI agents and transform your daily work with intuitive AI tools.

Fair value

The pricing is fair for light usage but becomes expensive for heavy users, as the $7.50 Personal tier offers only 800 credits while the $41 Expert tier gives 5000 credits, a poor value per credit at the mid-tier.

Watch out

No overage credit purchases available

Strengths

  • Pro: Automates a wide range of tasks using AI agents.
  • Pro: Allows parallel execution of multiple AI tasks, saving time.
  • Pro: Offers a rich library of prompts and templates for various industries.
  • Pro: Provides plugins to extend agent functionality.
  • Pro: Includes a free trial to test features.

Weaknesses

  • Con: Pricing is credit-based, which might require monitoring usage.
  • Con: Teams feature is listed as 'Coming soon!'

Key features

Autonomous AI Agents Parallel Task Execution Prompt Variables Curated Prompt Library Plugins for enhanced agent capabilities AI Chat Interface

Plans and prices: Memory MCP Server vs Spell.so

Plans and prices of Memory MCP Server and Spell.so, as read on each vendor's pricing page. Each plan keeps its own billing unit.
Tool Plans and prices Source
Memory MCP Server
  • Open Source: Free
github.com/modelcontextprotocol/servers/tree/ma… read Oct 18, 2026
Spell.so
  • Personal: $7.50/mo, billed yearly
  • Professional: $25/mo, billed yearly
  • Expert: $41/mo, billed yearly
spell.so/pricing read Sep 30, 2026

Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on Memory MCP Server pricing and Spell.so pricing.

Key Takeaways

Memory MCP Server

  • Has a free plan

Spell.so

  • Choose if you want delegate tasks to autonomous AI agents and transform your daily work with intuitive AI tools

What the data shows

On the data below, Memory MCP Server leads on a free plan. We do not name an overall winner for this pair.

  • Spell.so starts at $7.50/mo, billed yearly; Memory MCP Server has no public paid plan price on file.
  • Only Memory MCP Server has a free plan.

Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate

Frequently Asked Questions

How do Memory MCP Server and Spell.so compare in 2026?

On the data below, Memory MCP Server leads on a free plan. We do not name an overall winner for this pair. Spell.so starts at $7.50/mo, billed yearly; Memory MCP Server has no public paid plan price on file. Only Memory MCP Server has a free plan.

What are Memory MCP Server and Spell.so used for?

Memory MCP Server: Persistent memory MCP server, your AI remembers context across conversations. Spell.so: Delegate tasks to autonomous AI agents and transform your daily work with intuitive AI tools.

What does Memory MCP Server cost vs Spell.so?

Memory MCP Server is free. Spell.so's cheapest paid plan is Personal at $7.50/mo, billed yearly. Prices read on the vendors' pricing pages, latest check Oct 18, 2026.

What's the main difference between Memory MCP Server and Spell.so?

Memory MCP Server's main strength: AI remembers project decisions and preferences between sessions. Spell.so's main strength: automates a wide range of tasks using AI agents.

Related Comparisons & Resources

Compare other tools