mTarsier Review (2026): Pricing, Features & Honest Verdict
TLDR
mTarsier (a.k.a. mTarsier solves a real and growing pain: managing dozens of MCP server subscriptions and credentials. Best for: indie hackers and automation teams running Claude, Cursor, or n8n who want one bill and one config file for dozens of MCP tools. Price: Free / Free (100 credits/mo). Rating: 7.4/10.
What is mTarsier?
mTarsier (a.k.a. MCP360) is a unified gateway that connects AI agents like Claude, Cursor, and n8n to 100+ production-ready tools through a single integration. Instead of subscribing to dozens of MCP servers, you connect once and get access to everything.
It bundles a Custom MCP Builder that turns any REST API into an MCP server with no-code or code, plus pre-built integrations for keyword research, web scraping, SERP tracking, domain analysis, and ecommerce data.
What Are mTarsier’s Key Features?
100+ pre-built MCP tools
Single subscription unlocks tools across SEO, scraping, ecommerce, domain analysis, and more. Replaces fragmented per-tool subscriptions with one bill.
Custom MCP Builder
Turn any REST API into an MCP server using either a no-code builder or JavaScript and Python code. Browser-based testing means you don’t need to spin up infrastructure.
Credit-based pricing
Pay only for successful runs. Failed tool calls don’t deduct credits, and project-based credit tracking shows exactly where usage is going.
Plug-and-play agent integration
Copy-paste configuration for Claude, Cursor, and n8n. Tools work the same way regardless of which agent calls them.
Enterprise compliance
SOC 2 Type II, ISO 27001, and GDPR certified. Suitable for production use, not just hobby projects.
mTarsier Pricing
| Plan | Price | Includes | Best For |
|---|---|---|---|
| Free | $0 | 100 credits/mo, 1 project, basic MCP access | Testing and validation |
| Starter | $19/mo or $10 annual | 2,000 credits, 2 projects, 2 members | Small teams |
| Professional | $99/mo or $50 annual | 10,000 credits, 10 projects, 10 members, priority support | Growing teams |
| Advanced | $399/mo or $200 annual | 100,000 credits, unlimited projects and members, SLA | Large teams and agencies |
Annual billing roughly halves monthly rates. Failed tool calls don’t deduct credits. SOC 2 Type II, ISO 27001, and GDPR certifications included on all plans.
Pros and Cons
Pros
- Real free forever tier with 100 credits/mo
- Annual billing nearly cuts price in half
- Custom MCP Builder turns any REST API into an MCP
- Failed calls don’t burn credits
- Strong compliance certifications across all tiers
Cons
- Credit consumption per call isn’t always intuitive
- Free tier limited to 1 project and 100 credits
- Branding is split between mTarsier and MCP360
- Newer product with smaller community than direct MCP installs
- Heavy users might prefer self-hosted MCP servers
| Plan | Price | Plan Features | Best For |
|---|---|---|---|
| Free | $0 | 100 credits/mo, 1 project, basic MCP access | Testing and validation |
| Starter | $19/mo or $10 annual | 2,000 credits, 2 projects, 2 members | Small teams |
| Professional | $99/mo or $50 annual | 10,000 credits, 10 projects, 10 members, priority support | Growing teams |
| Advanced | $399/mo or $200 annual | 100,000 credits, unlimited projects and members, SLA | Large teams and agencies |
Who is mTarsier Best For?
Use mTarsier if: indie hackers and automation teams running Claude, Cursor, or n8n who want one bill and one config file for dozens of MCP tools.
Skip mTarsier if: you need a battle-tested tool with a large community.
Best mTarsier Alternatives
| Tool | What It Does | Price |
|---|---|---|
| Smithery | MCP server registry and hosted runtime, broader ecosystem but less of a unified gateway model. | Free tier, paid usage-based |
| Composio | Tool-calling platform for AI agents with hundreds of integrations, similar concept but different pricing model. | Free tier, paid from $9/mo |
| Pipedream MCP | MCP layer over Pipedream’s 2,000+ integrations, broader catalog but tied to the Pipedream platform. | Free tier, paid from $19/mo |
Final Verdict: Is mTarsier Worth It?
mTarsier solves a real and growing pain: managing dozens of MCP server subscriptions and credentials. The unified gateway and custom builder are both useful, and the free tier is generous enough to actually evaluate.
Pricing is reasonable, especially with the annual discount. If you’re building agent workflows that touch multiple tools, this is a sensible piece of glue.
FAQ
Is mTarsier the same as MCP360?
Yes, they refer to the same product. The site uses both names. MCP360 is the platform brand and mTarsier appears to be an alternate name.
What’s a credit?
A credit is consumed when an agent successfully calls one of mTarsier’s tools. Failed calls don’t deduct credits, and the cost per call varies by tool and operation type.
Which agents can connect?
Claude, Cursor, n8n, and any other MCP-compatible client. Configuration is copy-paste, and tools behave consistently across agents.
Can I add my own MCP tools?
Yes. The Custom MCP Builder turns any REST API into an MCP server with either a no-code interface or custom JavaScript and Python code.
Is there a free tier?
Yes, the Free plan gives you 100 credits per month, 1 project, and basic MCP access with no credit card required.
mTarsier Pros & Cons
What We Like
- Real free forever tier with 100 credits/mo
- Annual billing nearly cuts price in half
- Custom MCP Builder turns any REST API into an MCP
- Failed calls don't burn credits
- Strong compliance certifications across all tiers
What Could Be Better
- Credit consumption per call isn't always intuitive
- Free tier limited to 1 project and 100 credits
- Branding is split between mTarsier and MCP360
- Newer product with smaller community than direct MCP installs
- Heavy users might prefer self-hosted MCP servers
mTarsier FAQ
Is mTarsier the same as MCP360?
Yes, they refer to the same product. The site uses both names. MCP360 is the platform brand and mTarsier appears to be an alternate name.
What's a credit?
A credit is consumed when an agent successfully calls one of mTarsier's tools. Failed calls don't deduct credits, and the cost per call varies by tool and operation type.
Which agents can connect?
Claude, Cursor, n8n, and any other MCP-compatible client. Configuration is copy-paste, and tools behave consistently across agents.
Can I add my own MCP tools?
Yes. The Custom MCP Builder turns any REST API into an MCP server with either a no-code interface or custom JavaScript and Python code.
Is there a free tier?
Yes, the Free plan gives you 100 credits per month, 1 project, and basic MCP access with no credit card required.
What is mTarsier?
Unified MCP gateway connecting Claude, Cursor, and n8n to 100+ pre-built tools with a custom builder.
