Apastra vs SpacePrompts
Apastra
github.comSpacePrompts
spaceprompts.comSide by side
| Figure | Apastra | SpacePrompts |
|---|---|---|
| Price from | Free | $5/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| API | — | Yes |
| Self-hosted | Yes | — |
| Plans published | 1 | 3 |
| Spec score · AI Prompt Management Software | 7.8 (#14) | 8.5 (#8) |
| Integrations | The docs describe optional GitHub Actions workflows for regression gating, promotion, and immutable releases. | The privacy policy lists Google, GitHub, and Microsoft as OAuth providers for account authentication. |
| What it does | Apastra is a file-based PromptOps framework and skill pack for versioning prompts and evaluating agent instructions. | SpacePrompts manages, runs, versions, shares and retrieves AI prompts for individuals and teams. |
Plans
In their own words
SpacePrompts
SpacePrompts is a prompt management platform for people and teams working with AI. It runs on the web, through an API, and with Chrome, Edge, and Firefox extensions. Users can save, organize, run, version, and reuse prompts. The Playground combines an editor, variables, model selection, and immediate runs. An Evaluator scores prompts, highlights weak areas, and gives improvement guidance. Every save creates a version that can be restored later. The prompt manager extension can turn highlighted webpage text into a prompt. Its token counter supports OpenAI, Claude, Gemini, and DeepSeek models, showing token counts and estimated costs. Pro and Team plans provide API access, limited to 60 requests per minute per key. Team workspaces add shared libraries, collaborative editing, and role permissions for up to five members. Free includes 50 prompts and daily usage limits; Pro is $5 a month billed annually, and Team is $9 a month billed annually.