​ Before you begin

This guide walks you through building agentic search using @meilisearch/ai-sdk and the Vercel AI SDK. Using this approach, you can provide the LLM with search tools, allowing the model full control over when to search and how to use the results.

To get something working fast, you can connect your agent to the Meilisearch MCP server instead.

​ Before you begin

You need:

• A Meilisearch project with at least one index containing documents. If you don’t have one yet, follow the quick start.
• A search API key for that project. See manage API keys if you need to create one.
• An API key from an LLM provider. This guide uses OpenAI, but you can use any supported by the AI SDK.

​ Install packages

Install the AI SDK, a model provider package, and the Meilisearch AI SDK:

npm install ai @ai-sdk/openai @meilisearch/ai-sdk

​ Configure environment variables

Add your Meilisearch and LLM provider credentials to your environment:

.env

MEILISEARCH_URL=https://your-project.meilisearch.io
MEILISEARCH_KEY=your-search-api-key
OPENAI_API_KEY=your-openai-api-key

​ Run a first agentic request

Use meilisearchSearch to give an agent a search tool scoped to one index. The description field tells the model what the index contains and when to use it:

import { generateText, stepCountIs } from "ai";
import { openai } from "@ai-sdk/openai";
import { meilisearchSearch } from "@meilisearch/ai-sdk";

const { text } = await generateText({
  model: openai("gpt-5.4-mini"),
  prompt: "Find two movies about time travel, then summarize the difference.",
  tools: {
    search: meilisearchSearch({
      host: "MEILISEARCH_URL", // or process.env.MEILISEARCH_URL,
      apiKey: "MEILISEARCH_KEY", // or process.env.MEILISEARCH_KEY,
      indexUid: "movies",
      description: "Search the movies database",
    }),
  },
  stopWhen: stepCountIs(5),
});

console.log(text);

The model decides whether and how many times to call search before answering. You can steer behavior by prompt engineering, adding guardrails, and using the AI SDK to configure your agent’s capabilities.

​ Building a chatbot

Chatbots are a common UX on top of agentic search. If you want a multi-turn interface, keep the message history yourself and use streamText to stream the response:

import { streamText, stepCountIs } from "ai";
import { openai } from "@ai-sdk/openai";
import { meilisearchSearch } from "@meilisearch/ai-sdk";

const search = meilisearchSearch({
  host: "MEILISEARCH_URL", // or process.env.MEILISEARCH_URL,
  apiKey: "MEILISEARCH_KEY", // or process.env.MEILISEARCH_KEY,
  indexUid: "movies",
  description: "Search the movies database",
});

const messages = [
  { role: "user", content: "Find two movies about time travel." },
];

const { textStream } = streamText({
  model: openai("gpt-5.4-mini"),
  messages,
  tools: { search },
  stopWhen: stepCountIs(5),
});

for await (const text of textStream) {
  process.stdout.write(text);
}

For a complete implementation, check out the example application on GitHub.

AI SDK demo

Next.js chatbox example application

​ Improving retrieval performance

The @meilisearch/ai-sdk provides tools that build upon Meilisearch capabilities. To improve the relevancy of your search results, apply the best practices for tuning your full-text search and hybrid search. Since agentic search puts the model in control of the search process, you may find that semantic search is a better starting point than full-text search. Still, your choice of model, how you configure document embeddings, and your tool configuration will all impact the relevancy of results. We recommend using evals when iterating on your retrieval pipeline. For a full list of available tools, see the SDK API reference. For advanced retrieval logic, you can build your own agent tools on top of the meilisearch-js SDK.

​ Next steps

Choose an embedder

Configure hybrid search for better natural-language retrieval.

Manage API keys

Scope search API keys to the indexes your agent should access.

Display source documents

Show users which documents an agent used to answer.