One API to build, run and prove AI agents. Give an agent knowledge and tools, put it on WhatsApp or Discord or call it from your product, and read back every generation it ran with what it cost.

Where can an agent answer?

On WhatsApp and Discord through channels: you choose the agent, and the platform runs the conversation from the incoming message to the reply. Or call it from your own product over the REST API, the TypeScript SDK or the CLI.

Which models can I use?

The managed catalog, with no vendor account, paid from a prepaid balance. Or your own credential, and your vendor bills the tokens. A model route tries its targets in order and falls through on a provider error, timeout or rate limit.

Can Claude, Cursor or VS Code build it for me?

Yes. naturali is an MCP server: connect your assistant, approve it in your browser, and describe what you want built. Every operation in the API is a tool, so it reaches exactly what you would call yourself.

How do I see what an agent did?

Every run is traced: model turns, tool calls, knowledge retrieved, guardrail checks and what it cost, with the agent version that served it.

How much does it cost?

Free is $0 with 2,000 runs a month and no card. Pro is $49 and Business $249 a month; Enterprise is by contract. One run is one agent generation or one tool call.

Build, run and audit AI agents

Agents that operate for you, with autonomy you can prove

Describe the agent you need to Claude or Cursor, or write it in code. Knowledge, tools, WhatsApp or Discord, and every run traced with its cost.

Start free Connect your assistant

$02,000 runs a month, free

1 APIask your assistant, or code it

Tracedevery run, with its cost

Features

The whole system,
not just the agent.

An agent is more than a prompt: what it knows, where it answers, what it may do. Each piece is here, with a tutorial.

Ask or code

Ask for it.
Or code it.

Tell your assistant what the system should do and it builds it here. Or write the same calls yourself. Same API either way.

MCP server

Connect Claude, Cursor or VS Code and describe what you want built.

TypeScript SDK

@naturali/sdk — typed paths, bodies and responses.

CLI

@naturali/cli — one command per operation, scriptable in CI.

One contract

Every client is generated from the same OpenAPI, so none can do more than another.

your assistant, over MCPask

Create an agent that answers from our refund policy PDF. Ask me before it issues any refund over $100. Then put it on our Discord server.

@naturali/clishell

naturali create-agent-generation \
  --project-id "$PROJECT" \
  --agent-id "$AGENT" \
  --messages '[{"role":"user","content":"What is our refund window?"}]'

Connect over MCP→Quickstart→API reference→

How it works

Configure.Connect.Prove.

EXAMPLEtrace_8f2c41 · 30 Sep 2026 · 09:41 UTC

Every run,
read back.

0 steps

01message received
02knowledge search · 3 chunks
03model turn
04tool_call lookup_order
05guardrail refund_limit · passed
06approval · a person said yes
07reply sent

One trace, read back

every step, in the order it ran

the config that served the run

Agent version

v0

split by the turns that spent it

Cost of the run

$0.000

Model turnsTool callsKnowledge retrievedGuardrail checksWhat it cost

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After the fact

Questions you can answer later.

Why did the agent refund that order?

01

Traces

Every model turn and tool call in the order it ran

7–90days of traces kept, by plan

Answered by

Control

Autonomous,
not uncontrolled.

Guardrails gate what an agent may do, approvals put a human in front of the decisions that need one, and every request stays on the record.

Before it acts

4classes for every proposed tool call

A · executeB · execute if a guard passesC · ask a humanD · refuse

Pricing

Priced
on runs.

One run is one agent generation or one tool call, wherever it came from. Managed models draw on a prepaid balance; on your own credential, your vendor bills the tokens.

01

Free

Build one agent and prove it works on your data.

$0forever

no card needed

2,000 runs a month
3 projects · 1 channel
1 GB indexed storage
7-day trace retention
Evals included
Community support

Start free

02

Pro

Put an agent in production with a human in the loop.

$49/month

or $490 a year — two months free

25,000 runs a month, then $2 per 1k
Unlimited projects · 10 channels
30 GB indexed storage
30-day trace retention
Guardrails, approvals and exceptions
Email support

Start with Pro

03

Business

Volume, a longer record and an audit log of every request.

$249/month

or $2,490 a year — two months free

250,000 runs a month, then $1 per 1k
Unlimited projects · 100 channels
100 GB indexed storage
90-day trace retention
Audit log
Priority support

Start with Business

Members free on every planEvals on every planA downgrade waits for month end

Every plan, side by side Enterprise: your limits, an SLA and a DPA — talk to us

Questions

Frequently
asked.

01What is naturali?: One API to build, run and prove AI agents. Give an agent knowledge and tools, put it on WhatsApp or Discord or call it from your product, and read back every generation it ran with what it cost.
02Where can an agent answer?: On WhatsApp and Discord through channels: you choose the agent, and the platform runs the conversation from the incoming message to the reply. Or call it from your own product over the REST API, the TypeScript SDK or the CLI.
03Which models can I use?: The managed catalog, with no vendor account, paid from a prepaid balance. Or your own credential, and your vendor bills the tokens. A model route tries its targets in order and falls through on a provider error, timeout or rate limit.
04Can Claude, Cursor or VS Code build it for me?: Yes. naturali is an MCP server: connect your assistant, approve it in your browser, and describe what you want built. Every operation in the API is a tool, so it reaches exactly what you would call yourself.
05How do I see what an agent did?: Every run is traced: model turns, tool calls, knowledge retrieved, guardrail checks and what it cost, with the agent version that served it.
06How much does it cost?: Free is $0 with 2,000 runs a month and no card. Pro is $49 and Business $249 a month; Enterprise is by contract. One run is one agent generation or one tool call.

Every billing question

Build the agent.
Keep the receipts.

Sign in, connect your assistant or open the quickstart, and run your first agent.

Start free Read the quickstart

Free plan · 2,000 runs a month · no card

Agents that operate for you, with autonomy you can proveprove

The whole system,not just the agent.

Ask for it.Or code it.

MCP server

TypeScript SDK

CLI

One contract

Configure.Connect.Prove.

Configure

Connect

Prove

Every run,read back.