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Vinkius
OpenAI Agents SDKSDK
OpenAI Agents SDK
Correios API (REST) MCP Server

Bring Correios
to OpenAI Agents SDK

Learn how to connect Correios API (REST) to OpenAI Agents SDK and start using 2 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.

MCP Inspector GDPR Free for Subscribers
Calculate Price DeadlineTrack Object

Compatible with every major AI agent and IDE

ClaudeClaude
ChatGPTChatGPT
CursorCursor
GeminiGemini
WindsurfWindsurf
VS CodeVS Code
JetBrainsJetBrains
VercelVercel
+ other MCP clients
Correios API (REST)

What is the Correios API (REST) MCP Server?

Connect your AI agent to the Correios infrastructure to automate logistics queries in Brazil. This server provides direct access to the official REST API for real-time tracking and shipping simulations.

What you can do

  • Object Tracking — Get the full history of events and current status for any valid tracking code (e.g., AA123456789BR) using the track_object tool.
  • Shipping Calculation — Simulate prices and delivery deadlines for various services like SEDEX and PAC based on weight, dimensions, and zip codes with calculate_price_deadline.
  • Logistics Automation — Integrate shipping data into your e-commerce or support workflows without manual lookups.

How it works

  1. Subscribe to this server
  2. Enter your Correios API credentials (User and Password)
  3. Start querying logistics data from Claude, Cursor, or any MCP client

Who is this for?

  • E-commerce Owners — quickly check delivery statuses for customers and provide proactive updates.
  • Logistics Managers — automate shipping cost estimations for different regions in Brazil directly from the terminal or chat.
  • Support Teams — provide instant tracking updates within AI-powered chat interfaces without leaving the conversation.

Built-in capabilities (2)

calculate_price_deadline

Uses POST but acts as a query. Calculate shipping price and deadline

track_object

Track a postal object

Why OpenAI Agents SDK?

The OpenAI Agents SDK auto-discovers all 2 tools from Correios API (REST) through native MCP integration. Build agents with built-in guardrails, tracing, and handoff patterns. chain multiple agents where one queries Correios API (REST), another analyzes results, and a third generates reports, all orchestrated through Vinkius.

  • Native MCP integration via MCPServerSse, pass the URL and the SDK auto-discovers all tools with full type safety

  • Built-in guardrails, tracing, and handoff patterns let you build production-grade agents without reinventing safety infrastructure

  • Lightweight and composable: chain multiple agents and MCP servers in a single pipeline with minimal boilerplate

  • First-party OpenAI support ensures optimal compatibility with GPT models for tool calling and structured output

O
See it in action

Correios API (REST) in OpenAI Agents SDK

AI AgentVinkius
High Security·Kill Switch·Plug and Play
Why Vinkius

Correios API (REST) and 4,000+ other MCP servers. One platform. One governance layer.

Teams that connect Correios API (REST) to OpenAI Agents SDK through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.

4,000+MCP Servers ready
<40msCold start
60%Token savings
Raw MCP
Vinkius
Server catalogFind and host yourself4,000+ managed
InfrastructureSelf-hostedSandboxed V8 isolates
Credential handlingPlaintext in configVault + runtime injection
Data loss preventionNoneConfigurable DLP policies
Kill switchNoneGlobal instant shutdown
Financial circuit breakersNonePer-server limits + alerts
Audit trailNoneEd25519 signed logs
SIEM log streamingNoneSplunk, Datadog, Webhook
HoneytokensNoneCanary alerts on leak
Custom domainsNot applicableDNS challenge verified
GDPR complianceManual effortAutomated purge + export
Enterprise Security

Why teams choose Vinkius for Correios API (REST) in OpenAI Agents SDK

The Correios API (REST) MCP Server runs on Vinkius-managed infrastructure inside AWS — a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts. All 2 tools execute in hardened sandboxes optimized for native MCP execution.

Your AI agents in OpenAI Agents SDK only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.

Correios API (REST)
Fully ManagedVinkius Servers
60%Token savings
High SecurityEnterprise-grade
IAMAccess control
EU AI ActCompliant
DLPData protection
V8 IsolateSandboxed
Ed25519Audit chain
<40msKill switch
Stream every event to Splunk, Datadog, or your own webhook in real-time

* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure

The Vinkius Advantage

How Vinkius secures Correios API (REST) for OpenAI Agents SDK

Every tool call from OpenAI Agents SDK to the Correios API (REST) MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.

< 40msCold start
Ed25519Signed audit chain
60%Token savings
FAQ

Frequently asked questions

01

What information do I need to calculate a shipping price?

You need to provide the origin and destination ZIP codes (CEP), the service code (e.g., 04014 for SEDEX), weight, package format, and dimensions (length, height, width) using the calculate_price_deadline tool.

02

Can I track multiple objects at once?

The track_object tool currently processes one tracking code per request to ensure detailed event history for that specific item.

03

What is the 'idLote' field in the shipping calculation?

The idLote (Batch ID) is a required identifier for the Correios API request. It can be any string or number used to identify your specific calculation request in their logs.

04

How does the OpenAI Agents SDK connect to MCP?

Use MCPServerSse(url=...) to create a server connection. The SDK auto-discovers all tools and makes them available to your agent with full type information.

05

Can I use multiple MCP servers in one agent?

Yes. Pass a list of MCPServerSse instances to the agent constructor. The agent can use tools from all connected servers within a single run.

06

Does the SDK support streaming responses?

Yes. The SDK supports SSE and Streamable HTTP transports, both of which work natively with Vinkius.

07

MCPServerStreamableHttp not found

Ensure you have the latest version: pip install --upgrade openai-agents

08

Agent not calling tools

Make sure your prompt explicitly references the task the tools can help with.

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