AI Infrastructure & MLOps Freemium

MCPJam

Open-source testing, debugging, evaluation, and collaboration for MCP development

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PricingFreemium
Starting price$30/seat/mo billed annually
Free planYes
Free trialYes
APIYes
Open sourceYes
DeploymentHybrid
Last verifiedAugust 1, 2026
Overview

Tool overview

MCPJam is listed under AI Infrastructure & MLOps AI tools.

Summary

What is MCPJam?

MCPJam provides an open-source Inspector and a hosted platform for testing MCP servers, apps, and ChatGPT apps. It includes an LLM playground, OAuth debugging, JSON-RPC logs, evaluations, traces, projects, credits, and shared team workflows.

Best fit

Best for

Teams testing, debugging, and evaluating MCP servers and interactive apps

Audience

Who is it for?

MCP developersAI quality engineersPlatform teamsProduct teams shipping ChatGPT apps
Recommendation

Decision note

Rebuilt from the original export under the complete V411 factual-source gate. Each tool was researched independently and every high-risk family was checked again in a second pass. Preview only. Apply remains blocked until failures = 0, warnings = 0, unmapped = 0, missing = 0, logo QA is accepted or image import is disabled, explicit clears are reviewed, and a representative WordPress edit screen is checked.

Capabilities

Key features

MCP Inspector and LLM playground

OAuth and JSON-RPC debugging

Evaluations, traces, and conformance checks

Shared projects, credits, and team access

Workflows

Use cases

Test MCP tools before release

Debug authentication and protocol traffic

Evaluate prompts across MCP servers

Collaborate on MCP application quality

Strengths

Pros

  • Free open-source local tooling
  • Published Community and Team limits
  • Supports apps, servers, and CI workflows
Considerations

Limitations

Test results depend on representative prompts, realistic permissions, and production-like server behavior

Cloud traces and prompts may contain sensitive data and require retention, access, and DPA review

Cost

Pricing details

Pricing modelFreemium
Starting price$30/seat/mo billed annually
Free planYes
Free trialYes
Pricing context

Billing options

AnnualCustom enterprise
Pricing context

Pricing note

Community is free with 200 credits and 25 evaluation iterations per day. Team is $30 per seat per month when billed annually, with 10,000 monthly credits and 5,000 monthly evaluation iterations. Enterprise is custom.

View official pricing
Compatibility

Supported languages

  • English
Connectivity

Integrations

ChatGPT

Claude

Gemini

Cursor

MCP servers

Specs

Technical details

PlatformsWeb, Desktop
Multilingual supportUnknown
Login requiredNo
Open sourceYes
LicenseApache-2.0
DeploymentHybrid
CompanyMCPJam Inc.
Models / versionsInspector CLI SDK Evals
Editions / plansCommunity Team Enterprise
Data confidenceHigh
Last verifiedAugust 1, 2026
Documentation → Source code → Release notes → Data source →
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Answers

Frequently asked questions

MCPJam provides an open-source Inspector and a hosted platform for testing MCP servers, apps, and ChatGPT apps. It includes an LLM playground, OAuth debugging, JSON-RPC logs, evaluations, traces, projects, credits, and shared team workflows.
Teams testing, debugging, and evaluating MCP servers and interactive apps
The listed pricing model for MCPJam is Freemium. Pricing can change, so users should verify the latest plan details on the official website.
Yes. The current profile indicates that a free trial is available.
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