Does this MCP check for all AWS service limits?

It checks for hard service limits, including definition size and event history capacity. It also provides performance recommendations for state counts and nesting depth to help you avoid soft limits.

What is the difference between Standard and Express workflows?

The MCP helps you calculate the specific payload and duration limits for both modes. You need to know which mode you're using to determine the correct capacity constraints.

Can I use this if I'm not sure if my JSON is compliant?

Yes. You can use the check_definition_compliance capability. It validates your state machine definition against AWS constraints and tells you exactly where it fails.

Is this only for AWS users?

No, this MCP is designed specifically for AWS Step Functions. It uses AWS-specific rules and limits to provide accurate validation for your cloud architecture.

How do I check if my state machine definition is too large?

You can use the check_definition_compliance capability by providing your definition size in KB to identify if it exceeds the 104,857 character limit.

What is the difference between Standard and Express workflow limits?

Standard workflows allow up to 256 KB payloads and 1 year duration, while Express workflows are limited to 32 KB payloads and 5 minutes duration. Use calculate_workflow_capacities to see the exact values.

Can I check for performance bottlenecks?

Yes, the evaluate_performance_recommendations capability checks if your state count or nesting depth exceeds AWS best practices.

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Connect AWS Step Functions Limits Calculator to your AI

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Build reliable workflows that won't hit service caps.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

Waiting for input…

Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 4 capabilities

We ship only the actions that matter.

Capability set01 / 01

01-04

4 capabilities in this set.

Part of 4 available through AWS Step Functions Limits Calculator.

01
Calculate workflow capacities
Calculates the available or allowed capacities for data payloads, duration, and state naming based on the workflow mode
02
Calculate activity timeout range
Determines the valid window for activity task timeouts
03
Check definition compliance
Validates if the provided state machine definition and structure exceed hard AWS service limits
04
Evaluate performance recommendations
Compares the current configuration against AWS best practices and soft limits to prevent performance degradation

Real work

What teams actually run

Designing a large data ingestion pipeline

You're building a workflow that processes large files. Use this MCP to calculate the maximum payload size to ensure the data fits within the chosen workflow mode.

Migrating an existing workflow

You're moving an old, stable workflow to a new architecture. Use this to check the definition compliance and ensure the new structure adheres to current AWS best practices.

Optimizing state machine performance

Your workflow is running slowly. Use the performance recommendations capability to identify if the state count or nesting depth is causing bottlenecks.

Setting up a payment processing flow

You need a reliable workflow that handles sensitive data. Use this to validate the activity timeout range, ensuring payment steps have enough time to complete.

One connector, every AI

AWS Step Functions Limits Calculator works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

Building your own app? The connector is yours to use.

You don't need a client to put AWS Step Functions Limits Calculator to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

833ms average. Fast in production.

AWS Step Functions Limits Calculator is checked daily against the live service.

Daily averagePeak 997ms

Oct 3Today

Fastest day: 624ms
Slowest day: 997ms
14-day trend: Improving-16%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 4 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of AWS Step Functions Limits Calculator, so you can see the experience inside your AI.

It does not authenticate your account with AWS Step Functions Limits Calculator. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

AWS Step Functions Limits Calculator Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_qkPtjUbLkm3pLQphGXK1NiBT7OrDcKaaaU3er0wt/mcp

Claude Desktop

Follow the steps below to connect in seconds.

1In Claude Desktop, open Settings → Connectors.
2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
3Click Add and start a new chat — AWS Step Functions Limits Calculator capabilities are ready to use.

Configuration · claude_desktop_config.jsonCopy

{
  "mcpServers": {
    "aws-step-functions-limits-calculator-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_qkPtjUbLkm3pLQphGXK1NiBT7OrDcKaaaU3er0wt/mcp"
    }
  }
}

Claude
ChatGPT
Cursor
VS Code
Windsurf
Claude Code
JetBrains
Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up AWS Step Functions Limits Calculator in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work AWS Step Functions Limits Calculator owners hand off.

This MCP is built for cloud architects and backend engineers who design complex, mission-critical serverless systems. If you're building workflows that must scale and remain compliant with AWS rules, you need this. It lets you validate your design before you even deploy the code.

01
Cloud Architect
Use this to validate the overall design of a multi-step workflow and ensure it meets enterprise-level scalability requirements.
02
DevOps Engineer
Use this to automate compliance checks on state machine definitions, preventing deployment failures due to service limits.
03
Backend Developer
Use this to confirm that the data payloads and execution durations you plan for won't exceed AWS's hard service caps.

FAQ

Questions AWS Step Functions Limits Calculator owners ask.

01
Does this MCP check for all AWS service limits?
It checks for hard service limits, including definition size and event history capacity. It also provides performance recommendations for state counts and nesting depth to help you avoid soft limits.
02
What is the difference between Standard and Express workflows?
The MCP helps you calculate the specific payload and duration limits for both modes. You need to know which mode you're using to determine the correct capacity constraints.
03
Can I use this if I'm not sure if my JSON is compliant?
Yes. You can use the check_definition_compliance capability. It validates your state machine definition against AWS constraints and tells you exactly where it fails.
04
Is this only for AWS users?
No, this MCP is designed specifically for AWS Step Functions. It uses AWS-specific rules and limits to provide accurate validation for your cloud architecture.
05
How do I check if my state machine definition is too large?
You can use the check_definition_compliance capability by providing your definition size in KB to identify if it exceeds the 104,857 character limit.
06
What is the difference between Standard and Express workflow limits?
Standard workflows allow up to 256 KB payloads and 1 year duration, while Express workflows are limited to 32 KB payloads and 5 minutes duration. Use calculate_workflow_capacities to see the exact values.
07
Can I check for performance bottlenecks?
Yes, the evaluate_performance_recommendations capability checks if your state count or nesting depth exceeds AWS best practices.

Explore

More in Devops

Connect AWS Step Functions Limits Calculator to Claude, Cursor, ChatGPT & more

Your AI does the work. We keep it safe and sound.

Each Connector runs inside its own sealed environment.

One switch stops every agent. Instantly.

Spending limits that pause instead of surprise.

We ship only the actions that matter.

01-04

Calculate workflow capacities

Calculate activity timeout range

Check definition compliance

Evaluate performance recommendations

What teams actually run

Designing a large data ingestion pipeline

Migrating an existing workflow

Optimizing state machine performance

Setting up a payment processing flow

Building your own app? The connector is yours to use.

AWS Step Functions Limits Calculator Connector

Claude Desktop

Cloud Architect

DevOps Engineer

Backend Developer

Does this MCP check for all AWS service limits?

What is the difference between Standard and Express workflows?

Can I use this if I'm not sure if my JSON is compliant?

Is this only for AWS users?

How do I check if my state machine definition is too large?

What is the difference between Standard and Express workflow limits?

Can I check for performance bottlenecks?

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