PrompTessor
Verified Oct 15, 2026 ActivePrompt workspace: write, score, refine, reverse-engineer from an image or URL, and keep the results in a versioned library.
Listed on EffectHub ·
Pricing
- Pricing model
- Freemium
- Paid options from
- $10/mo
- Billing
- Monthly
Free is 5 prompt usages a month with limited features; Pro $10 (1,500 usages), Pro+ $15 (3,000) and Max $20 (5,000) a month all unlock every workflow plus API and MCP access. Paid access can be bought as a fixed term that does not auto-renew or as an auto-renewing subscription; add-on usage packs exist.
Use tool ↗About PrompTessor
PrompTessor is a workspace for people who write prompts often. It generates prompts from a stated goal, analyses and scores an existing prompt, optimises and refines it against your feedback, and reverse-engineers a prompt from an image, video, URL or block of text. Saved prompts go into a searchable library with version history across every generation and rewrite. It runs on the web, on iOS and as a Chrome extension, and paid plans add a versioned REST API, webhooks and an MCP server for ChatGPT, Claude, Cursor and similar clients. Free allows 5 runs a month; Pro is $10 a month for 1,500 runs, Pro+ $15 for 3,000 and Max $20 for 5,000.
- Platforms
- Web · iOS · Chrome extension · API
- API
- Yes
- Last verified
- Oct 15, 2026
Verified sources
- Pricing on the home page: Free $0 with 5 prompt usages a month and limited features; Pro $10/month 1,500 usages, Pro+ $15 3,000, Max $20 5,000, each with public API & MCP access; auto-renew and manual-renewal options (15 October 2026)promptessor.com ↗
- Terms (last updated 9 September 2026): paid plans unlock Prompt Refinement and Reverse Prompt; paid access is a fixed term with manual renewal or an auto-renewing subscription; no operating company named (15 October 2026)promptessor.com ↗
- Developer documentation for the REST API, MCP integrations and webhooks is published (15 October 2026)promptessor.com ↗
Is PrompTessor legit?
We don’t label tools safe or unsafe. Below are the records we checked ourselves, each with the date we read it.
- Domain registered
- May 21, 2025 (1 year ago)Registry record (RDAP), registrar GoDaddy.com, LLC, looked up Sep 6, 2026
- TLS certificate
- Issued by Google Trust Services, valid until Nov 29, 2026Seen in our own connection to the site on Oct 15, 2026
- Last checked
- Oct 15, 2026The site answered
Pros & cons of PrompTessor
Most prompt tools are either a generator or a shared library; this one does both plus reverse-prompting from images, video and URLs, which is the feature people hunt for when they want to reproduce someone else's style. The free plan has shrunk to 5 runs a month and leaves out Reverse Prompt and Refinement, so a fair test takes a $10 Pro month, which now also brings a REST API and MCP access. Buying a fixed term with no auto-renewal is still an option.
Pros
- Reverse-prompting works from images, video, URLs and text, not just text
- Versioned, searchable prompt library with history
- REST API, webhooks and an MCP server on every paid plan
- Fixed-term purchase without auto-renewal is offered next to a normal subscription
Cons
- Free plan is 5 usages a month and excludes Reverse Prompt and Refinement
- All paid tiers are the same product at different quotas, so there is little reason to go above Pro unless you burn through runs
- No company name or country disclosed
Best for
- People maintaining a reusable prompt library across projects
- Recreating the prompt behind an image or video you liked
- Teams standardising prompts rather than pasting them in chat
Not for
- Casual users who need only a few prompts a month and expect a usable free tier
- Anyone needing evaluation against real model outputs, not heuristics
Watch out: Plans are metered in 'usages', and one workflow can consume several; the 5-a-month free tier runs out within a single test session.
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