Compatible with every major AI agent and IDE
What is the BR Business Days Calculator MCP Server?
LLMs cannot reliably calculate SLAs or business delivery times. If you ask an AI to 'add 5 business days to Feb 10th', it will frequently ignore Carnival or count a Saturday. This MCP solves this by providing a static, local-first calculation engine that perfectly handles Brazilian national holidays and weekends.
The Superpowers
- Flawless SLA Math: Guarantee that your agents' promised delivery dates are exactly right, automatically skipping weekends and static/dynamic BR holidays.
- Zero Latency & 100% Local: Unlike our global
business-timezone-schedulerthat uses the Nager.Date API, this engine uses a hardcoded Brazilian holiday list in the V8 isolate. Zero external network calls. Instant execution. - Absolute Determinism: Eliminates the hallucination of non-existent business days, bringing enterprise reliability to AI agents.
Built-in capabilities (2)
Pass a starting date and the number of days to add (use negative values to subtract). The engine skips weekends and Brazilian holidays automatically. Adds or subtracts X Brazilian business days from a given date
Pass the date as an ISO string (YYYY-MM-DD). The engine accounts for all Brazilian national holidays and weekends. Checks if a given date is a Brazilian business day (excludes weekends and BR national holidays)
Why LlamaIndex?
LlamaIndex agents combine BR Business Days Calculator tool responses with indexed documents for comprehensive, grounded answers. Connect 2 tools through Vinkius and query live data alongside vector stores and SQL databases in a single turn. ideal for hybrid search, data enrichment, and analytical workflows.
- —
Data-first architecture: LlamaIndex agents combine BR Business Days Calculator tool responses with indexed documents for comprehensive, grounded answers
- —
Query pipeline framework lets you chain BR Business Days Calculator tool calls with transformations, filters, and re-rankers in a typed pipeline
- —
Multi-source reasoning: agents can query BR Business Days Calculator, a vector store, and a SQL database in a single turn and synthesize results
- —
Observability integrations show exactly what BR Business Days Calculator tools were called, what data was returned, and how it influenced the final answer
BR Business Days Calculator in LlamaIndex
BR Business Days Calculator and 4,000+ other MCP servers. One platform. One governance layer.
Teams that connect BR Business Days Calculator to LlamaIndex 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 BR Business Days Calculator in LlamaIndex
The BR Business Days Calculator 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 LlamaIndex 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
BR Business Days Calculator for LlamaIndex
Every tool call from LlamaIndex to the BR Business Days Calculator MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
Does it require an external API?
No! It uses a statically compiled list of Brazilian national holidays.
Does it skip weekends automatically?
Yes, Saturdays and Sundays are ignored.
Are Carnival and Easter supported?
Yes, the dynamic dates for these holidays are embedded.
How does LlamaIndex connect to MCP servers?
Use the MCP client adapter to create a connection. LlamaIndex discovers all tools and wraps them as query engine tools compatible with any LlamaIndex agent.
Can I combine MCP tools with vector stores?
Yes. LlamaIndex agents can query BR Business Days Calculator tools and vector store indexes in the same turn, combining real-time and embedded data for grounded responses.
Does LlamaIndex support async MCP calls?
Yes. LlamaIndex's async agent framework supports concurrent MCP tool calls for high-throughput data processing pipelines.
BasicMCPClient not found
Install: pip install llama-index-tools-mcp
Explore More MCP Servers
View all →
Katalon TestOps (AI Test Management)
10 toolsManage test orchestration via Katalon TestOps — rerun test runs, monitor execution results, and audit software releases.

Aliyun API Market / 阿里云云市场
9 toolsChina's largest API marketplace — access thousands of 3rd-party OCR, SMS, and data services via AI.

42Crunch
10 toolsAutomate API security testing via 42Crunch — manage collections, trigger audits, run conformance scans, and retrieve security reports directly from any AI agent.

SemVer Version Manager
2 toolsStop LLMs from guessing software versions. Deterministically evaluate semantic version bounds, compatibilities, and sort releases perfectly.
