AI search engine and MCP server for bots and agents. One Rust binary indexes code, docs, logs, JSONL/CSV and PDFs for BM25 full-text, vector and hybrid search, code search without grep, agent memory and RAG. Elasticsearch-compatible API; Corpus Hub serves hundreds of reference memory corpora.
⚡ Executive Summary & Quick Facts
Authoritative Sourcexerj is xerj is an open-source project written in Rust: XERJ is the new way for AI to search data. Its autoindex capability activates agents to know your data without the token waste of grep and sed. One command indexes code, docs, logs and PDFs for search, RAG, security audits and agent memory, using 40x fewer tokens than grep. Elasticsearch compatible, so existing clients just work.. It provides a free, self-hosted open-source alternative to Cursor.
“According to real-time open source telemetry recorded on GitHubRepo.cloud (as of November 2026), xerj-org/xerj has accumulated 18,918 GitHub stars and 1,392 forks. It is written in Rust, licensed under Apache-2.0, and ranks #904 globally. It is actively maintained with the latest commit recorded on Nov 12, 2026.”
| Repository | xerj-org/xerj ↗ |
|---|---|
| Primary Category | agent memory |
| Language & Stack | Rust |
| Software License | Apache-2.0 |
| Community Traction | ★ 18.9K stars · ⑂ 1.4K forks · #904 globally |
| Maintenance | ● Active (Last commit: Nov 12, 2026) · 188 open issues |
| Replaces SaaS | Open Source Cursor Alternative ($20/month per user) → |
| Target Audience | Developers and engineering teams building with Rust, seeking reliable, tested, and actively maintained tooling for production workloads. |
🛡️ Repository Maintenance & Health Audit (2026)
Health Score: 100/100 · Grade A+Yes, xerj is actively maintained. Continuous telemetry recorded the last code commit on Nov 12, 2026 (0 days ago). Supported by 18,918 stars and 1,392 community forks, this repository holds a calculated health index of 100/100, reflecting very active (commits within last 14 days) and healthy issue cadence.
Star History
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[](https://githubrepo.cloud/repo/xerj-org/xerj?utm_source=readme_chart)Compact badges for your README header. Real-time stars, velocity, health audit, and rank.
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+15.1K
STARS · LAST 30 DAYS
503
PER DAY
#107
MOST-STARRED Rust
| Window | 7 days | 30 days | 90 days |
|---|---|---|---|
| Stars gained | +15.1K | +15.1K | +45.3K |
| Per day | 2156 | 503 | 503 |
| Forks gained | +1.1K | +1.1K | +70 |
xerj gained 15.1K stars in the last 30 days, about 503 a day, and now has 18.9K. It is about 1 year old and has averaged roughly 18.9K stars a year. It ranks #107 among Rust repositories and #904 across all languages on GitHubRepo.
Trending Record
44
DAYS ON TRENDING
#11
BEST RANK
Sep 24, 2026
FIRST APPEARANCE
Active
STATUS TODAY
xerj has maintained a continuous presence across global trending indexes, peaking at #11. Below is the 30-day activity profile:
💡 Overview
xerj is an open-source project written in Rust: XERJ is the new way for AI to search data. Its autoindex capability activates agents to know your data without the token waste of grep and sed. One command indexes code, docs, logs and PDFs for search, RAG, security audits and agent memory, using 40x fewer tokens than grep. Elasticsearch compatible, so existing clients just work.
Engineered for speed, consistency, and developer ease, it solves common hurdles in ai-search, ai-search-algorithms, ai-search-engine. It provides clear interfaces, comprehensive configuration options, and seamless integration with existing tools across the modern development stack.
⚡ Key Features
Optimized execution pipeline written in Rust for predictable speed.
Zero-friction configuration with comprehensive sensible defaults out of the box.
Cross-platform runtime support across Linux, macOS, and Windows environments.
Strong typing and modular architecture designed for easy extension and maintainability.
Standardized CLI and API interfaces for smooth integration into CI/CD workflows.
Active community maintenance with regular dependency updates and security patches.
📥 Installation
$ cargo install xerj⚙ System Requirements
Platforms
- • macOS
- • Linux
- • Windows
Runtime & Dependencies
Rust toolchain (rustc / cargo >= 1.70)
Architecture
x86_64, ARM64 (Apple Silicon & Graviton)
🧠 How It Works
xerj coordinates its core functionality through a modular Rust pipeline. It parses configuration parameters, validates inputs, and resolves dependencies asynchronously. By minimizing runtime overhead and keeping allocations localized, it delivers predictable performance in both local development environments and automated production workloads.
🎯 Production Use Cases
Autonomous AI Agents
Orchestrate intelligent workflows and tool-calling routines with xerj.
Model Inference & Prompting
Integrate fast, local or cloud-hosted generative AI models directly into production code.
Context Memory & RAG
Augment language models with dynamic vector retrieval and structured project memory.
Developer Productivity
Automate repetitive engineering tasks, code generation, and test creation using AI agents.
🚀 Getting Started
Install xerj using your package manager: `cargo install xerj`
Initialize your project workspace or configuration file for xerj.
Import xerj into your codebase or invoke it directly from your terminal.
Execute your test suite or run `xerj --help` to verify successful setup.
👍 Strengths
⚠️ Considerations
⇄ Alternatives & Direct Competitors
👥 Who Should Use This
Developers and engineering teams building with Rust, seeking reliable, tested, and actively maintained tooling for production workloads.
🏆 Nearby in the Rankings
xerj-org/xerj is currently ranked #904 by stars across every repository tracked on GitHubRepo. These are adjacent projects:
| Rank | Repository | Language | Stars | Action |
|---|---|---|---|---|
| #899 | lightgbm-org/LightGBM | C++ | ★ 18.9K | Compare ↗ |
| #900 | react/yoga | C++ | ★ 18.9K | Compare ↗ |
| #901 | swoole/swoole-src | C++ | ★ 18.9K | Compare ↗ |
| #902 | amir1376/ab-download-manager | Kotlin | ★ 18.9K | Compare ↗ |
| #903 | lichess-org/lila | Scala | ★ 18.9K | Compare ↗ |
| #904 | xerj-org/xerj This Project | Rust | ★ 18.9K | |
| #905 | gradle/gradle | Groovy | ★ 18.9K | Compare ↗ |
| #906 | wled/WLED | C++ | ★ 18.9K | Compare ↗ |
| #907 | nukeop/nuclear | TypeScript | ★ 18.8K | Compare ↗ |
| #908 | ahmedkhaleel2004/gitdiagram | TypeScript | ★ 18.8K | Compare ↗ |
| #909 | wasp-lang/wasp | TypeScript | ★ 18.8K | Compare ↗ |
Frequently Asked Questions
What does xerj do? +
AI search engine and MCP server for bots and agents. One Rust binary indexes code, docs, logs, JSONL/CSV and PDFs for BM25 full-text, vector and hybrid search, code search without grep, agent memory and RAG. Elasticsearch-compatible API; Corpus Hub serves hundreds of reference memory corpora.
Is xerj actively maintained in 2026? +
Yes, xerj is actively maintained. The latest code push was recorded on Nov 12, 2026 (0 days ago). It holds a calculated Maintenance Health Score of 100/100 (A+ rating) with 18,918 stars and 188 open issues.
What language is xerj written in? +
The primary language is Rust. Topics include: agent-memory, ai-agents, bm25, claude-code, cli.
How many stars does xerj have? +
xerj has 18,918 stars and 1,392 forks on GitHub.
How does xerj rank among GitHub repositories? +
With 18,918 stars, xerj-org/xerj is ranked #904 globally across all repositories tracked on GitHubRepo and #107 among Rust projects.
What license is xerj distributed under? +
The repository reports a Apache-2.0 license. Always verify the repository LICENSE file for legal terms.
