Visual AI agent builder · orchestrator, sub-agents, guardrails, one Deploy button

Build AI agents visually. Deploy them as an API in ten minutes.

Drag an orchestrator onto the canvas, give it specialist sub-agents, wrap it in guardrails and a prompt-injection shield, test it with a full trace, then hit Deploy. Every change ships as a new version behind the same endpoint.

Start freeSee use cases7-day free trial · One agent · No card required · Founded by Nishanthan Janarthanarajah (Nishy)
Product teams shipping an AI featureAgencies building agents for clientsSupport and ops leadsDevelopers who skip the orchestration layer
agents.nishyai.com
Agent Studio landing page: “Design the agent. We run it as an API.”
Agent Studio playground: an incoming message and the trace of the shield and guardrail stages
Agent Studio canvas: an orchestrator with a sub-agent, a guardrail and an injection shield, plus a test run

Use cases

Agents people build in Agent Studio

Every agent is the same shape: an orchestrator that talks to the caller, sub-agents it delegates to, and the guardrails that keep it on the job. Here is what that looks like in practice.

Support

Support copilot with an order tracker

The orchestrator answers customers; an Order Tracker sub-agent looks up shipping status. A guardrail keeps it on topic and the shield blocks jailbreak attempts.

  1. Message in
  2. Shield: pass
  3. Guardrail: on topic
  4. Delegate → Order Tracker
  5. Answer with trace
Knowledge

Internal knowledge assistant

Answers policy and process questions for staff. An output guardrail rewrites anything that leaks confidential detail, and every answer carries its trace.

  1. Staff question
  2. Input guardrail
  3. Orchestrator answers
  4. Output guardrail: rewrite
  5. Logged with tokens
Sales

Lead qualification agent behind a form

Call the agent from your website form. It asks two follow-up questions, scores the lead and returns structured output your CRM can store.

  1. POST /invoke
  2. Qualify sub-agent
  3. Score + reason
  4. JSON back to the form
Content

Brand-safe marketing assistant

Drafts posts and replies inside a natural-language brand policy. Off-brand output is rewritten to comply rather than blocked.

  1. Brief in
  2. Writer sub-agent
  3. Brand guardrail: rewrite
  4. Draft out
Operations

Triage agent that routes to specialists

One orchestrator reads the request and hands it to the right specialist: billing, technical, or account. Each specialist has its own model and prompt.

  1. Request
  2. Orchestrator plans
  3. Delegate → specialist
  4. Combined answer
Agencies

Twenty client agents on one account

The Agency plan runs up to 20 agents with 20 sub-agents each. Every client gets its own endpoint, API key and version history.

  1. Client brief
  2. Design on canvas
  3. Deploy vN
  4. Rotate key per client

How it works

Ten minutes from blank canvas to a live endpoint

No orchestration code, no prompt plumbing, no separate moderation service. The builder compiles your design into a runtime and hosts it.

01

Design on the canvas

Add an Orchestrator and connect Sub-agents for the work it should delegate. Write each prompt in plain words, then press Polish to turn it into a production-grade prompt.

02

Add protection

Drop in Guardrails with the policies your product needs and an Injection Shield that stops jailbreak attempts before the model sees them. Test it in the playground with a full trace.

03

Deploy as an API

One click compiles the design into a versioned deployment. Call it with a bearer key from any language. Change the design, deploy again, same URL.

Features

Everything a production agent needs, as nodes

Each building block is a node on the canvas. Connect them, test them, deploy them.

Orchestrator

Talks to the caller, decides what to do and delegates. Pick the model, set the step budget, write the prompt.

Sub-agents

Specialists with their own model and prompt. Connect one to the orchestrator and it becomes a tool the orchestrator can call.

Guardrails

Natural-language policies checked on input or output. Block with your own message, or rewrite the text to comply.

Injection shield

Pattern rules, Meta's Llama Prompt Guard 2 and an LLM classifier. Optional hardening treats user input as data, never instructions.

Polish

Turn a one-line idea into a structured system prompt or policy. Preview, then accept or discard.

Deploy and trace

Versioned, immutable deployments, per-agent API keys with rotation, and a stage-by-stage trace on every run with latency and token usage.

Open models on Groq

GPT-OSS 120B and 20B, Llama 3.3 70B, Llama 4 Maverick and Kimi K2, all served by Groq for low latency. Choose a model per node.

Add to Flows automatically

Flip one switch in the Deploy dialog and the agent appears in Flows as an “Ask <agent>” step, re-synced on every deploy. No keys to copy.

One stable endpoint

Send a message or a whole conversation. Get back the answer, whether a guardrail or the shield blocked it, and the trace that explains why.

Comparison

Agent Studio vs OpenAI Agent Builder, Copilot Studio, Dify and Flowise

Most agent builders assume you will bring hosting, a moderation layer or a specific vendor's models. Agent Studio ships the whole pipeline, shield to trace, behind one URL.

Swipe the table to compare →

Agent Studio vs OpenAI Agent Builder, Copilot Studio, Dify and Flowise
CriteriaAgent StudioOpenAI Agent BuilderMicrosoft Copilot StudioDifyFlowise / Langflow
How you buildCanvas of orchestrator, sub-agents, guardrails and shield; prompts in plain words with PolishVisual canvas in the OpenAI platformLow-code builder inside the Microsoft 365 ecosystemOpen-source visual LLM app builder with workflow canvasOpen-source node graphs of LangChain-style components
ModelsGPT-OSS, Llama 3.3, Llama 4 Maverick and Kimi K2 on Groq, chosen per nodeOpenAI modelsMicrosoft-hosted modelsMany providers, bring your own keysMany providers, bring your own keys
GuardrailsNatural-language input and output policies that block or rewrite, built inGuardrail options availableEnterprise governance and policy controlsModeration features availableAssemble your own from components
Prompt-injection defenceThree layers built in: pattern rules, Llama Prompt Guard 2 and an LLM classifier, with optional hardening; every decision in the traceSafety checks available as guardrailsPlatform-level protectionsAdd a moderation step yourselfAdd it yourself
Hosting and deploymentFully hosted; one click deploys a versioned API with a bearer keyHosted by OpenAI; consumed through their APIs and SDKsHosted by Microsoft; published to Teams, web and other channelsSelf-host, or their cloudSelf-host, or their cloud
ObservabilityStage-by-stage trace, latency and token usage on every call, returned with the responseTracing in the OpenAI platformAnalytics in the Microsoft admin experienceLogs and annotations in the appDepends on your setup
Pricing modelFlat monthly plans from $10 after a 7-day free trialUsage-based on OpenAI API pricingPer-message or capacity packsFree open source plus cloud plansFree open source plus cloud plans
Best forShipping a guarded agent as an API in minutes with no orchestration layer to maintainTeams standardised on OpenAIOrganisations living in Microsoft 365Teams that want open-source control and self-hostingDevelopers experimenting with component graphs

Choose OpenAI Agent Builder or Copilot Studio when you are committed to that vendor's ecosystem. Choose Dify or Flowise when you want to self-host and assemble every piece. Choose Agent Studio when you want the shield, guardrails, orchestration, versioning and trace already wired, and a live endpoint before lunch.

Competitor details are summarised from their public websites in September 2026 and simplified. Check each vendor for current features and pricing.

Pricing

Flat monthly plans, in USD

Start with a 7-day free trial of one agent. Pick a plan when you are ready to keep it running. Change or cancel any time.

Free trial

$0/month

7 days, no card.

  • 1 agent
  • 1 sub-agent per agent
  • 1 guardrail per agent
  • Playground and traces
Start free

Starter

$10/month

One production agent.

  • 1 agent
  • 1 sub-agent per agent
  • 1 guardrail per agent
  • Email support
Choose Starter
Most popular

Pro

$25/month

Two agents with richer teams.

  • 2 agents
  • 2 sub-agents per agent
  • 2 guardrails per agent
  • AI chat support
Choose Pro

Growth

$49/month

Three agents for a growing team.

  • 3 agents
  • 3 sub-agents per agent
  • 3 guardrails per agent
  • AI chat support
Choose Growth

Agency

$200/month

Build for many clients.

  • 20 agents
  • 20 sub-agents per agent
  • Unlimited guardrails per agent
  • AI chat support
Choose Agency

When a trial ends, the builder and deployed agents pause and nothing is deleted. Pick a plan and everything resumes as you left it.

Frequently Asked Questions

What is Agent Studio?

Agent Studio is a visual AI agent builder. You design an orchestrator and its sub-agents on a canvas, add guardrails and a prompt-injection shield, test in a playground with a full trace, and deploy the agent as a versioned API with one click.

Do I need to write code to build an AI agent?

No. You design on a canvas and write prompts in plain language. The only code is the one curl command you use to call your agent, and Agent Studio generates that for you.

What is a sub-agent?

A specialist with its own prompt and model. When you connect it to the orchestrator, the orchestrator can hand it tasks and use the result, the way a lead hands work to a teammate.

How does the injection shield work?

Three layers: fast pattern rules, Meta's Llama Prompt Guard 2 classifier, and a general LLM check. It can also harden your orchestrator so user text is treated as data. Every decision shows up in the trace.

Which models can I use?

GPT-OSS 120B and 20B, Llama 3.3 70B, Llama 4 Maverick and Kimi K2, all served by Groq for low latency. You can choose a model per node.

How do I call a deployed agent?

Every agent gets one endpoint that stays stable across versions. Send a message or a whole conversation with the agent's bearer API key and you get back the answer, whether a guardrail or the shield blocked it, and the trace that explains why. Keys can be rotated any time.

How is Agent Studio different from OpenAI Agent Builder or Copilot Studio?

Those builders live inside one vendor's ecosystem and models. Agent Studio runs open models on Groq, ships guardrails and a three-layer prompt-injection shield as first-class nodes, and deploys every design as a versioned API with a trace on every call, on flat monthly pricing.

How is it different from Dify, Flowise or Langflow?

Those are open-source builders you host and assemble yourself, including moderation. Agent Studio is fully hosted: the shield, guardrails, orchestration, versioning and tracing are already wired, so you go from blank canvas to a live endpoint in about ten minutes.

What happens when my trial ends?

The builder and your deployed agents pause, and you get an email with a link to choose a plan. Nothing is deleted; pick a plan and everything resumes as you left it.

Who founded Agent Studio?

Agent Studio was founded by Nishanthan Janarthanarajah, known as Nishy (nishyai.com), an AI engineer based in Colombo, Sri Lanka. Nishy is also the founder of Flows, and agents deployed in Agent Studio can be added to Flows automatically as workflow steps.

Who builds and runs Agent Studio?

Agent Studio is designed, built and operated by Nishanthan Janarthanarajah, a full stack and AI engineer based in Colombo, Sri Lanka. It runs on Next.js and Vercel with Neon serverless Postgres, Groq for models, Google sign-in and Polar billing.

Your first agent is ten minutes away

Free for 7 days. No card. Bring one job you keep answering by hand and let an agent take it.

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