---
id: post/gerardorenteria-blog/11003
type: post
title: LLM’s training cut-off dates 👀MCP Server Context7 to the rescue. 🤖
summary: Explains why LLM training cutoff dates cause outdated answers about APIs and tools, and how to mitigate it in VS Code. A question about the Business Central Admin Center API for listing dependent apps to uninstall gets a wrong answer by default, a correct one with the Fetch tool, and a correct one when the Context7 MCP server is added and the prompt ends with use context7.
tier: community
language: es
tags:
  - llm cutoff dates
  - mcp context protocol
  - outdated information
  - real-time documentation
  - visual studio code
  - ai agents
system: development
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    title: LLM’s training cut-off dates 👀MCP Server Context7 to the rescue. 🤖
    date: "2025-05-25"
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post_id: "11003"
source_id: gerardorenteria-blog
source_name: Gerardo Renteria
url: https://gerardorenteria.blog/2025/05/25/llms-training-cut-off-dates-%f0%9f%91%80mcp-server-context7-to-the-rescue-%f0%9f%a4%96/
published_at: "2025-05-25T17:20:11.000Z"
author: Gerardo Renteria
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# LLM’s training cut-off dates 👀MCP Server Context7 to the rescue. 🤖

[Read the post](https://gerardorenteria.blog/2025/05/25/llms-training-cut-off-dates-%f0%9f%91%80mcp-server-context7-to-the-rescue-%f0%9f%a4%96/) · Gerardo Renteria (Gerardo Renteria) · 2025-05-25 · 2247 words · tier community · reviewed (checked by Opus)

> Explains why LLM training cutoff dates cause outdated answers about APIs and tools, and how to mitigate it in VS Code. A question about the Business Central Admin Center API for listing dependent apps to uninstall gets a wrong answer by default, a correct one with the Fetch tool, and a correct one when the Context7 MCP server is added and the prompt ends with use context7.

## Key points

- LLM training cutoffs create knowledge limitations where models can only reference information up to their last training date, potentially providing obsolete advice about APIs and frameworks
- Models may suggest outdated libraries, deprecated products, or incorrect security practices without awareness they are no longer valid
- MCP (Model Context Protocol) is a standardized protocol that connects AI agents to external tools and data sources, functioning like USB-C for AI integrations
- Context7 MCP server provides real-time access to up-to-date documentation through two tools: resolve-library-id and get-library-docs, enabling LLMs to answer accurately about current information

## AL objects mentioned

As named in the post. A name that matches one object page by exact type and name links to it; the others stay as named.

- other "Business Central Admin Center API"

## Context

- Features: MCP Context7 server, resolve-library-id tool, get-library-docs tool, Model Context Protocol integration, VS Code agent mode, real-time documentation fetching

Source: Gerardo Renteria, community blog. Summary, key points and quotes are derived (CONTENT-NOTICE.md); read the original for the full text.