Building Custom Agents with Nia API

Create powerful domain-specific agents using Nia’s indexing and search API

Build custom AI agents powered by comprehensive knowledge bases using Nia’s API. Index any repository, documentation, or content—then use Nia’s search API to retrieve ground truth information for accurate, grounded responses.

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Chromium Expert Agent

Try It Live

Chromium Expert Agent

Experience the Chromium agent in action - ask any question about Chromium internals, architecture, or implementation details.

How It Works

This agent was built by:

1. Indexing the Chromium Repository - All major folders and components of the Chromium codebase were indexed using Nia’s repository indexing API
2. Indexing Chromium Documentation - Official Chromium docs and design documents were indexed for comprehensive coverage

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Paul Graham Essay Agent

Another example: a Paul Graham expert agent built by indexing all of his essays. Ask it anything about startups, writing, programming philosophy, or life advice—and get responses grounded in PG’s actual writing.

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Paul Graham Agent

Ask questions about startups, writing, technology, and life — grounded in 120+ essays.

What was indexed:

• All Paul Graham essays from paulgraham.com
• Years of startup wisdom and insights
• Programming and technology perspectives

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Naval Ravikant Agent

A Naval Ravikant expert agent built by indexing his entire archive—tweets, podcast transcripts, essays, and interviews. Get grounded answers on wealth creation, happiness, philosophy, and decision-making.

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Naval Agent

Ask questions about wealth, happiness, and life — grounded in Naval’s wisdom.

What was indexed:

• Complete Naval archive and writings
• Podcast transcripts and interviews
• Tweetstorms and threads on wealth & happiness

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Community Showcase

People are building incredible things with Nia’s API:

Code Review Agent

Ground truth for PR reviews - An agent that fetches accurate information from package source code during code reviews, ensuring suggestions are based on actual implementation details rather than hallucinations.

Custom IDE Integration

IDE with built-in Nia search - A developer built their own IDE with Nia search tools integrated directly, enabling real-time ground truth lookups while coding.

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Building Your Own Agent

You can build similar domain-specific agents for any large codebase or documentation set:

1. Index Your Sources

   Use the Nia API to index repositories and documentation:

   # Index a repository
   curl -X POST https://api.trynia.ai/v2/repositories \
     -H "Authorization: Bearer $NIA_API_KEY" \
     -H "Content-Type: application/json" \
     -d '{"url": "https://github.com/chromium/chromium"}'
   
   # Index documentation
   curl -X POST https://api.trynia.ai/v2/data-sources \
     -H "Authorization: Bearer $NIA_API_KEY" \
     -H "Content-Type: application/json" \
     -d '{"url": "https://chromium.googlesource.com/chromium/src/+/main/docs/"}'
   
2. Search and Retrieve

   Query your indexed sources using hybrid search:

   curl -X POST https://api.trynia.ai/v2/search \
     -H "Authorization: Bearer $NIA_API_KEY" \
     -H "Content-Type: application/json" \
     -d '{
       "query": "How does the renderer process communicate with the browser process?",
       "repositories": ["chromium/chromium"]
     }'
   
3. Build Your Agent

   Integrate Nia search into your agent’s RAG pipeline to provide grounded, accurate responses.

Check out the API Reference for complete documentation on indexing and search endpoints.