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ContextStream vs SpellBox

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

ContextStream compared with SpellBox
DetailContextStream logo ContextStreamSpellBox logo SpellBox
What it doesShared project context for AI coding agents AI programming assistant that generates code from simple prompts
StageStartup Not given
Founded2024 Not given
Based inNot given Not given
Pricing modelFreemium Paid
PricingStarter: Free with 10,000 credits every month, 1 user, up to 15 projects. Pro: $19/month with 25,000 credits every month, 1 user, unlimited projects. Elite: $49/month with 100,000 credits every month, 1 user, unlimited projects. Team: $79/user/month with 200,000 credits per seat pooled, 3+ users, $2 SpellBox one-year license: $40 early bird price (regular $65). Includes unlimited code generation, unlimited computers, and code bookmarking. Additional 15% off available with promo code EARLYBIRD15. 5-day money-back guarantee.
Key features
  • Hosted code search with indexing and dependency graphs
  • Save and retrieve project decisions with reasoning
  • Record lessons from past work to guide future tasks
  • Plans, runbooks, and handoffs for agent coordination
  • MCP integration with Cursor, Claude Code, Codex, Grok
  • Change impact analysis and code health metrics
  • Team collaboration with shared workspaces
  • Privacy controls and access permissions
  • ContextCode CLI and VS Code extension
  • Knowledge Atlas to explore code and project connections
  • Code generation from natural language prompts
  • Code explanation feature for understanding existing code
  • VS Code extension integration
  • Support for major programming languages
  • Desktop applications for macOS and Windows
What makes it different
  • Switch agents without re-explaining the project
  • Decisions and lessons carry over across sessions and tools
  • Full-featured free plan with 10,000 monthly credits
  • High code recall (99.38%) and memory accuracy (91.4%)
  • Evidence-based answers with source attribution
  • Instant solutions to coding problems without searching the internet
  • Helps developers focus on high-quality software rather than routine coding tasks
  • Reduces time wasted on syntax errors and debugging
Free planNot given Not given
Open sourceNot given Not given
PlatformsNot given Not given
Public APINot given Not given
Community votes00
DR (Domain Rating by Ahrefs)29 no change since last check38 no change since last check
Trust Flow (Majestic)57
Citation Flow (Majestic)3636
Referring domains (Majestic)109438

5 details filled in for both companies.

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