One command vs 100 hours. The math is what it is.
MCP servers are open-source and well-documented — you can write your own in an afternoon. But what makes a good model-intelligence MCP isn't the protocol code (~200 LOC), it's the data layer: curated catalog of 80+ models with up-to-date pricing, community-tested syntax rules per model, model-deprecation detection, etc. That data layer takes hundreds of hours to build and is a permanent maintenance burden. Promptibus is the same MCP protocol — just with the data layer already done, maintained by us, and shared across all users.
If you have one specific niche model and lots of free engineering time, build your own. Otherwise install ours and save 100+ hours.
| Feature | Promptibus | Building your own MCP server |
|---|---|---|
| Initial setup time | 1 minute (npx command) | 5-20 hours (read MCP spec, scaffold server, basic tools) |
| Model catalog | 80+ models curated + maintained | DIY — research each model's syntax + pricing |
| Syntax rules per model | Community-tested + auto-updated | DIY — discover deprecations the hard way |
| Pricing data | Updated when vendors change prices | DIY — track 20+ vendor pricing pages forever |
| Deprecation handling | Auto — we update when models retire | DIY — your prompts silently break |
| Cost | Free (100/day) or $9/mo Pro | Engineering time + opportunity cost |
| Distribution channels | Smithery / MCP Registry / Lobehub | DIY — handle your own publishing |
If you've already built your own MCP, you can run BOTH. Use yours for your private internal models, install Promptibus for the public model catalog. MCP clients support multiple servers natively.
Free tier: 100 calls/day. No credit card.