vioscale
Comparison

Mastra vs Zep

On the evidence we track, Zep leads this comparison with a composite score of 64/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Mastra full profile →Zep full profile →
Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Mastra55
★Zep64
Score
Vioscale score
Mastra55 / 100low · 42%updating
Zep64 / 100medium · 55%updating
Pricing
Free tier
Mastra✓
Zep✓
Model
Price level
Mastrahigh
Zephigh
Starting price
Mastra$250
Zep$104
Transparent
Mastra✓
Zep✓
Integrations
Count
Mastra11
Zep9
Security
Gdpr
Mastra✓
Zep–
Hipaa
Mastra–
Zep✓
Soc2
Mastra✓
Zep✓
Vulnerabilities
Adoption
Dependent repos
Mastra0
Zep–
Github stars
Mastra27,493
Zep–
Activity
Commits last 30d
Mastra100
Zep–
Release
Cadence days
Mastra4
Zep–
History
Mastra20 items
Zep–
Language
Primary
MastraTypeScript
Zep–
Market
Availability

Capabilities

Feature-by-feature on the axes that matter for agent memory. “-” means undocumented, not absent.

Capabilities
Architecture model
MastraManaged cloud API
ZepManaged cloud API
Graph based entity relationship extraction
Mastra-
Zep✓
Automatic context window rolling summarization
Mastra-
Zep-
Semantic vs episodic event chronological memory
Mastra✓
Zep✓
Cross session and multi thread user persistence
Mastra✓
Zep✓
Memory conflict resolution and fact updating
Mastra-
Zep✓
Multi tenant user and agent isolation
Mastra✓
Zep✓
Native langchain and llamaindex memory classes
Mastra-
Zep-
Time decay and recency weighted retrieval
Mastra-
Zep✓
Zero data retention and pii redaction layer
Mastra-
Zep-
SOC2 type ii
Mastra-
Zep✓
Mit or apache permissive oss license
Mastra-
Zep✓
Pricing model
Mastra-
ZepUsage based per req

What each one is

The product in its own terms, so the numbers below have context.

Mastra

A TypeScript framework that enables developers to build AI agents and applications using language models and tools, featuring built-in memory management, workflow orchestration, and production observability. Supports both cloud deployment and self-hosted deployment anywhere.

Independently observed

Zep

Leader

A production-grade memory system for AI agents that uses temporal context graphs to store and retrieve conversations and business data, with automatic updates when facts change. Supports multi-tenant governance with flexible deployment options from managed cloud to customer-controlled infrastructure.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Mastra

from $250/moHybridFree tier

Free tier + pay-as-you-go. Team plan from $250/month. Enterprise custom.

  • StarterFree
    • 100K observability events/month
    • 24 CPU hours/month
    • 10GB data egress/month
    • 15 days data retention
    • Unlimited users, projects, and deployments
  • Teams$250/month + overage charges
    • 1M observability events/month
    • 250 CPU hours/month
    • 100GB data egress/month
    • 6 months data retention
    • Multiple teams
    • +2 more
  • EnterpriseContact sales
    • Custom volume and retention
    • RBAC
    • Audit logs
    • Uptime SLAs
    • Dedicated support engineer
as of verify ↗

Zep

Leader
from $104/moUsage-basedFree tier

Free tier (10k credits/month). Flex from $104/month annually (50k credits). Flex Plus from $312/month annually (200k credits). Enterprise: custom pricing. Usage-based: $0.0025 per additional credit (Flex) or $0.001875 per credit (Flex Plus).

  • FreeFree
    • 10,000 credits per month
    • 2 projects
    • 1 Memory MCP Server seat
    • 5 custom entity & edge types
    • Context Graph + temporal memory
    • +2 more
  • Flex$104/month billed annually; $25 per 10k additional credits
    • 50,000 credits per month included
    • Auto top-up at 20%
    • 30-day credit rollover
    • 600 projects
    • 5 Memory MCP Server seats
    • +5 more
  • Flex Plus$312/month billed annually; $75 per 40k additional credits
    • 200,000 credits per month included
    • Auto top-up at 20%
    • 60-day credit rollover
    • 1,000 projects
    • 15 Memory MCP Server seats
    • +10 more
  • EnterpriseContact sales
    • Custom credits with negotiated rates
    • Guaranteed rate limits with SLA
    • Unlimited projects
    • Custom Memory MCP Server seats
    • Custom entity & edge types
    • +5 more
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Mastra✓
Zep✓
CLI
Mastra✓
Zep✓
Deployment
Cloud / SaaS
Mastra✓
Zep✓
Self-hosted
Mastra✓
Zep✓
Hybrid
Mastra✗
Zep✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (2)
  • OpenAI
  • Anthropic

Mastra

11 total - 9 not shared
  • Gemini
  • Slack
  • Discord
  • Telegram
  • Nango
  • Ampersand
  • Paragon
  • Zapier
  • Apideck
Independently observed

Zep

Leader
9 total - 7 not shared
  • Claude
  • Cursor
  • Azure OpenAI
  • Google Gemini
  • Neo4j
  • FalkorDB
  • Amazon Neptune
Independently observed

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.