Sswapr.maltor

BGPT MCP vs onUI

A side-by-side comparison of BGPT MCP and onUI — pricing, license, deployment, and where each tool wins.

BGPT MCP
github.com

Hosted MCP server for searching scientific papers with full-text experimental data. 50 free searches, no API key needed.

onUI
github.com

Open-source browser extension and MCP server for annotation-first UI pair programming with AI agents. Works with Claude Code, Cursor, Windsurf, Copilot. Chrome, Edge, Firefox. Free, GPL-3.0.

FeatureBGPT MCPonUI
PricingFreemiumFreemium
ModelFreemiumFreemium
LicenseProprietaryProprietary
DeploymentCloudCloud
CategoryCode & DevelopmentCode & Development
Self-hosted✕No✕No
Free tier✓Yes✓Yes

Pick BGPT MCP if…

  • ✓You prefer BGPT MCP's feature set or ecosystem fit.

Pick onUI if…

  • ✓You prefer onUI's feature set or ecosystem fit.

Switch from BGPT MCP → onUI

1–4hlow risk

Light lift — 1-4 engineering hours for a small team.

Export from BGPT MCP: Git history, JSON config
2 things to watch
  • ⚠Re-grant SSH keys / OAuth
  • ⚠Re-wire CI secrets

Switch from onUI → BGPT MCP

1–4hlow risk

Light lift — 1-4 engineering hours for a small team.

Export from onUI: Git history, JSON config
2 things to watch
  • ⚠Re-grant SSH keys / OAuth
  • ⚠Re-wire CI secrets