Seth Hobson
Seth Hobson is an individual software engineer, applied-AI developer, founder, and open-source creator rather than a standalone company named Seth Hobson. He builds data and AI systems and, through Major 7 Apps, ships AI products, developer tools, data tooling, and native Apple-platform apps; he also publishes AI Primitives about infrastructure for production agents.
At a Glance
- Software developers and engineering teams using AI coding tools
- AI-agent developers and platform engineers
- Data engineers and SQL learners
- Quantitative, trading, and investing developers
- +2 more
AI Tools by Seth Hobson
(1)
Agents
Plugin Marketplace for AI Coding
Discussions
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Latest News
Tiingo MCP 2.2.0 released with Homebrew formula generation, Windows MSI installer, artifact-install checks, and refreshed documentation.
The agents marketplace documentation was refreshed to describe its multi-harness catalog: 94 plugins, 202 agents, 184 skills, and 105 commands.
AI Primitives published 'Containment primitives: what failed in the 2026 lab incidents and what agent platforms ship by default.'
Tiingo MCP cut over to a native Rust/RMCP binary in a breaking 2.0 release, replacing the uvx/PyPI installation contract.
Products & Services
MIT-licensed marketplace of 94 plugins containing 202 agents, 184 skills, 105 commands, and 16 orchestrators. It uses shared Markdown source and generated adapters for Claude Code, OpenAI Codex CLI, Cursor, OpenCode, Antigravity CLI, GitHub Copilot, and Pi.
Browser-based SQL learning product. It offers four free SQL-foundations lessons, a free first performance module, and 54 performance exercises overall; learners run real SQLite queries, read execution plans, preserve result correctness, and optimize plan efficiency.
Offline-first memory runtime for AI agents, published by Major 7 Apps. It supports episodic, semantic, and procedural memory, eight-signal retrieval, FSRS-based forgetting, local SQLite/ONNX by default, optional PostgreSQL, and Python, TypeScript, Go, MCP, REST, and CLI interfaces.
Local MCP server for market-data analysis, technical analysis, stock screening, portfolio tracking, and optional strategy backtesting and LLM-assisted research; core tools do not require an API key and it works with any MCP client.
Market Position
Hobson's work is positioned as an independent, open-source and self-serve alternative across several focused categories: agents is a cross-harness plugin marketplace rather than a single coding assistant; Pensyve emphasizes local, framework-independent agent memory rather than a hosted-only memory service; Maverick MCP and Tiingo MCP expose market data through the interoperable MCP standard; and QueryPlan differentiates SQL education through hands-on execution plans and graded query efficiency instead of video-only instruction.
Leadership
Founders
Seth Hobson
Software engineer with 15+ years building data applications, services, and distributed systems, mainly across finance, technology, and AI. Previous roles include Senior Software Engineer at Apple (2015–2021) and Kuali (2021–2023); he is currently a Senior AI Engineer at United Data Technologies and founder of Major 7 Apps LLC. His education includes computer-science and music degrees from Appalachian State University and a Master of Music from Indiana University Bloomington.
Executive Team
Seth Hobson
Founder, Major 7 Apps LLC; software engineer and applied-AI developer
Previously Senior Software Engineer at Apple and Kuali; currently Senior AI Engineer at United Data Technologies. He created the agents marketplace, is building QueryPlan, and maintains multiple AI/data open-source projects.
Founding Story
Hobson founded Major 7 Apps in 2024 as an independent product studio to build and ship its own AI-powered applications, data tooling and evaluations, and native Apple-platform apps. His open-source work grew from the same goal of making practical infrastructure for developers: agents is a multi-harness plugin marketplace, while Pensyve separates agent memory storage, retrieval, reinforcement, and forgetting into a reusable offline-first runtime.
Business Model
Revenue Model
The public materials indicate a mixed creator/studio model: paid lifetime access to QueryPlan's SQL-performance modules, while its foundations path, first performance module, and query-plan visualizer are free. Open-source tools are distributed under MIT or Apache 2.0 licenses; Tiingo MCP requires users to supply their own Tiingo API key, and no hosted API pricing is stated. AI Primitives is a subscription newsletter, with the public page offering subscription but no price shown.
Pricing Tiers
Four guided lessons covering tables, columns, filtering, and sorting.
The first SQL-performance module is free; the course includes 10 exercises in module 1.
Lifetime access; modules cover how queries run, indexes, joins, sorting, and grouping.
Target Markets
- Software developers and engineering teams using AI coding tools
- AI-agent developers and platform engineers
- Data engineers and SQL learners
- Quantitative, trading, and investing developers
- Developers integrating MCP servers with desktop or coding clients
- Readers interested in production AI infrastructure
- Software architecture, implementation, testing, debugging, code review, security, data engineering, and infrastructure workflows
- Developers building AI agents that need durable local memory and framework-independent retrieval
- Developers and analysts seeking stock, forex, crypto, fund, news, fundamentals, screening, portfolio, or backtesting tools through MCP
- SQL learners and working developers learning indexes, joins, sorting, grouping, and execution-plan optimization
- Readers and AI practitioners tracking production-agent infrastructure and operational controls
- Apple TV users who want an ambient market-data display