Bring Postal Service
to OpenAI Agents SDK
Learn how to connect Correios do Brazil to OpenAI Agents SDK and start using 3 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.
GDPR Free for SubscribersCompatible with every major AI agent and IDE
Gemini
What is the Correios do Brazil MCP Server?
Connect your Correios account to any AI agent to automate logistics and shipping calculations directly within your workflow.
What you can do
- Shipping Calculation — Calculate precise shipping costs based on origin, destination, weight, and package dimensions for services like SEDEX and PAC.
- Delivery Estimates — Get the estimated number of working days for any delivery across Brazil.
- Address Lookup (CEP) — Instantly retrieve full address details (street, neighborhood, city, state) from any Brazilian ZIP code.
- Service Comparison — Compare different postal service codes to find the best shipping option for your needs.
How it works
- Subscribe to this server
- Enter your Correios Web Services (CWS) credentials
- Start querying logistics data from Claude, Cursor, or any MCP client
Who is this for?
- E-commerce Owners — quickly estimate shipping costs for customers without leaving the chat.
- Developers — verify address data and integrate logistics logic into applications via natural language.
- Logistics Managers — track delivery windows and optimize shipping routes across Brazil.
Built-in capabilities (3)
Calculate shipping cost for postal services
Consult address information for a ZIP code
Estimate delivery time between two ZIP codes
Why OpenAI Agents SDK?
The OpenAI Agents SDK auto-discovers all 3 tools from Correios do Brazil through native MCP integration. Build agents with built-in guardrails, tracing, and handoff patterns. chain multiple agents where one queries Correios do Brazil, 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
Correios do Brazil in OpenAI Agents SDK
Correios do Brazil and 4,000+ other MCP servers. One platform. One governance layer.
Teams that connect Correios do Brazil 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.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 4,000+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for Correios do Brazil in OpenAI Agents SDK
The Correios do Brazil 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 3 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.
* 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
How Vinkius secures
Correios do Brazil for OpenAI Agents SDK
Every tool call from OpenAI Agents SDK to the Correios do Brazil MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
How can I calculate the shipping price for a specific package?
Use the calculate_prices tool. You will need to provide the origin and destination ZIP codes, weight, dimensions, and the service code (e.g., 04014 for SEDEX).
Can I check the delivery deadline between two Brazilian cities?
Yes! The estimate_delivery_time tool allows you to input the service code and both ZIP codes to receive the estimated delivery time in working days.
Is it possible to find an address using only the ZIP code (CEP)?
Absolutely. Use the consult_cep tool with the 8-digit ZIP code to retrieve the street name, neighborhood, city, and state automatically.
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.
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.
Does the SDK support streaming responses?
Yes. The SDK supports SSE and Streamable HTTP transports, both of which work natively with Vinkius.
MCPServerStreamableHttp not found
Ensure you have the latest version: pip install --upgrade openai-agents
Agent not calling tools
Make sure your prompt explicitly references the task the tools can help with.
Explore More MCP Servers
View all →
JSON Path Query Engine
1 toolsExtract specific data from massive JSON payloads using JSONPath expressions.
Mem0
4 toolsGive your AI agent persistent memory — store, search, and recall facts, preferences, and context across sessions using the leading agent memory platform.
Square
11 toolsManage payments, customers, and inventory on Square with AI agents.
Envoy
10 toolsManage workplace operations via Envoy — register visitors, book desks and rooms, track deliveries, and monitor office capacity directly from any AI agent.