Modular Prompt Library vs UncannyPrompt
Modular Prompt Library
modularprompt.comUncannyPrompt
uncannyprompt.comSide by side
| Figure | Modular Prompt Library | UncannyPrompt |
|---|---|---|
| Price from | $2.50/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 5 | 0 |
| Spec score · Prompt Management Software | 8.2 (#10) | 6.6 (#26) |
| Intended users | The site identifies AI content creation teams, prompt engineers, marketing agencies, software development teams, customer support teams, and educational institutions as audiences. | The product describes use for support playbooks, product research, engineering workflows, content templates, customer communication, and recurring AI tasks. |
| Product | Modular Prompt Library is an AI prompt management platform for building, managing, sharing, testing, and comparing prompts. | UncannyPrompt is a structured home for reusable AI prompts, variables, versions, sharing rules, and audit history. |
| Version history | The product tracks prompt changes with version history and supports reverting to previous versions. | Users can track meaningful prompt changes and restore previous versions. |
Plans
Modular Prompt Library
- Personal AccountFree
- StarterFree
- Growth$2.50 a month
- Professional$5 a month
- EnterprisePriced on request
In their own words
Modular Prompt Library
Modular Prompt Library is a web platform for building, managing, sharing, testing, and comparing AI prompts. Users can assemble prompts from reusable components and use them across projects. Version history records changes and supports returning to an earlier version, while shared libraries let teams review and collaborate on prompt work. For testing, users connect their own OpenAI, Anthropic, or Google API keys, fill prompt variables, adjust temperature, top-p, and max tokens, and save presets for a prompt version. The comparison environment displays outputs side by side with latency, token counts, and estimated cost. The site says keys are encrypted at rest, usage is billed directly by the model provider, and prompts, variables, and outputs remain in the user's workspace. Personal Account is free for personal use, with up to five workspaces and unlimited prompts and modules. Starter is free for up to five users or three workspaces; Growth costs $2.50 a month and Professional costs $5 a month. Organizational accounts have a 60-day free trial, and no credit card is required to start.
UncannyPrompt
UncannyPrompt has no write-up on Specifiction yet; its figures are above.