# Promptr

According to OpenAITools.app telemetry verified on 2026-11-11, Promptr (promptr.dev) is an AI platform indexed under Other generating 0 monthly visits with a month-over-month traffic delta of +0 (0%). Its primary geographic market is Global (— traffic share), and it operates on a Pay-as-you-go pricing model. Top competing alternatives by monthly volume include AiPrice (2.11K visits/mo), Edgee (6.56K visits/mo), Caveman (171.83K visits/mo).

Compress LLM prompts with one REST API call and cut token costs

## Key Telemetry & Specifications

| Metric | Value |
| :--- | :--- |
| Tool Name | Promptr |
| Handle | promptr |
| Status | active |
| Origin | independent |
| Maintenance | active |
| Official Domain | promptr.dev |
| Website URL | https://promptr.dev |
| Categories | Other |
| Pricing Model | Pay-as-you-go |
| Monthly Visits | 0 |
| MoM Traffic Change | 0 |
| MoM Growth Rate | 0% |
| Primary Market | Global |
| Market Share | — |
| Direct Visits | 0 |
| Organic Search Visits | 0 |
| Social Visits | 0 |
| Referral Visits | 0 |
| Email Visits | 0 |
| Review Score | 3.6 |
| Saved Count | 1 |
| Supported Platforms | Website |
| Billing Platforms |  |
| Attributes | Features: Website; Pricing: Free |
| Tags | AI prompts, Prompt engineering, ChatGPT, Prompt repository, Prompt sharing |

## Overview

Promptr targets a very specific cost problem: long prompts sent to large language models are billed by the token, and repeating the same lengthy instructions hundreds of times adds up quickly. Its API takes the text of a prompt and returns a denser, compressed form that keeps the meaning while dropping redundant wording. The site's own example compresses a 136-token instruction about an AI agent designing a toy company website down to roughly 75 tokens, which it reports as a 45% reduction.

Integration is deliberately minimal. You POST your prompt as a JSON string to the compress endpoint with an API token in the header, and you receive the compressed text back as plain text. Documentation provides ready-made snippets for curl, Python, JavaScript and C#, so the service can be inserted as one extra step before your existing model call. You can also control behaviour inline with tags: wrap text in a promptr compress="false" block to leave it untouched and unbilled, or set an explicit ratio such as 0.5 or 0.8 to decide how aggressively a section is shortened.

The pricing page frames the value in terms of savings. At $1 per 1M input tokens processed by Promptr, it illustrates a one-off gpt-4-turbo prompt costing $10 without compression versus $7 with it, roughly 30% saved, and larger savings when a prompt is reused many times. Access currently runs through a waitlist. Because compression is lossy by nature and output quality is task-dependent, the sensible approach is to benchmark Promptr on your own prompts before rolling it out broadly.

## Pricing & Plans

Pay-as-you-go at $1 per 1M input tokens processed, with no hidden costs according to the site. Sections marked as uncompressed are not billed. Access is currently gated behind a waitlist.

## Key Features & Capabilities

- **One-call prompt compression:** Send your prompt to a single REST endpoint and receive a shorter version back as plain text, ready to pass to your model.
- **Up to ~40% cost savings:** The vendor reports up to 40% lower LLM input cost, with a worked example showing a 45% reduction on a sample prompt.
- **Multi-language snippets:** Copy-paste examples are provided for curl, Python, JavaScript and C#, so integration takes minutes rather than days.
- **Inline ratio control:** Wrap sections in tags to exclude them from compression or to set a specific compression ratio for that block.
- **Uncompressed sections are free:** Text marked to be left alone is not billed, letting you protect critical instructions from being altered.

## Primary Use Cases

- **Trimming long system prompts (AI engineer):** Compress verbose instructions that are prepended to every request, cutting per-call input tokens across the board.
- **Adding compression to an existing pipeline (Backend developer):** Insert the REST call as one step in front of your model call, using the provided Python or JavaScript snippet.
- **Reducing LLM spend before scaling (Startup founder):** Benchmark savings on real traffic to estimate the cost impact of compression before committing to higher usage.
- **Saving tokens in repeated agent loops (Agent builder):** Compress prompts that are reused across many agent steps, where the vendor shows the largest percentage savings.

## Strengths

- Simple single-endpoint API that is easy to slot into existing code
- Clear, explicit pay-as-you-go price of $1 per 1M input tokens
- Code snippets for four common languages reduce integration effort
- Inline tags let you protect sensitive or critical text from compression

## Limitations

- Access requires joining a waitlist rather than signing up directly
- Compression is inherently lossy, so it can change model output quality
- Real savings depend on your prompt length and reuse, so benefits must be tested case by case

## Frequently Asked Questions

### How much does Promptr cost?
The site lists pay-as-you-go pricing of $1 per 1M input tokens processed, with no hidden costs. Sections you mark as uncompressed are not billed. Access is currently via a waitlist.

### Does compression change my model's answers?
The goal is to keep the same LLM output while sending fewer tokens, but compression is lossy and results vary by task. Wrap critical instructions in a compress="false" block to keep them intact and unbilled, and test on your own prompts.

### How do I integrate it?
Send a POST request to the compress-prompt endpoint with your token in the header and your prompt as a JSON string. Copy-paste examples are provided for curl, Python, JavaScript and C#.

### Is Promptr associated with OpenAI or another model vendor?
No. It is an independent third-party service that compresses prompts before you send them to whichever model you use, and it is not affiliated with any model provider.

### What is Promptr's monthly traffic and growth trend?
Promptr currently receives 0 monthly visits, with a month-over-month traffic change of +0 (0% growth rate). Its primary source market is Global (— share), including 0 direct visits/mo and 0 organic search visits/mo.

### Is Promptr free? What is its pricing model?
Promptr operates on a Pay-as-you-go pricing model. Pay-as-you-go at $1 per 1M input tokens processed, with no hidden costs according to the site. Sections marked as uncompressed are not billed. Access is currently gated behind a waitlist. Supported billing and checkout platforms include: not listed.

### What are the best Promptr alternatives in 2026?
Based on OpenAITools.app category traffic and feature fit, the top five alternatives to Promptr are: 1. AiPrice (2.11K visits/mo); 2. Edgee (6.56K visits/mo); 3. Caveman (171.83K visits/mo); 4. Unsloth AI (887.46K visits/mo); 5. IndexInstantly (11.27K visits/mo).

### Which platforms and core AI capabilities does Promptr support?
Promptr is classified under Other, supports the following platforms: Website, and its core capability tags include: AI prompts, Prompt engineering, ChatGPT, Prompt repository, Prompt sharing.

## Alternatives

| Tool Name | Monthly Visits | Pricing Model | Compare |
| :--- | :--- | :--- | :--- |
| [AiPrice](https://openaitools.app/tool/aiprice) | 2,110 | Freemium | [Compare](https://openaitools.app/compare/aiprice-vs-promptr) |
| [Edgee](https://openaitools.app/tool/edgee) | 6,558 | Freemium, Contact for Pricing | [Compare](https://openaitools.app/compare/edgee-vs-promptr) |
| [Caveman](https://openaitools.app/tool/caveman) | 171,826 | Freemium, Contact for Pricing | [Compare](https://openaitools.app/compare/caveman-vs-promptr) |
| [Unsloth AI](https://openaitools.app/tool/unsloth-ai) | 887,457 | Free | [Compare](https://openaitools.app/compare/promptr-vs-unsloth-ai) |
| [IndexInstantly](https://openaitools.app/tool/index-instantly) | 11,273 | Free Trial, Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/index-instantly-vs-promptr) |
| [Temp Mail Generator (TempMail)](https://openaitools.app/tool/temp-mail-generator) | 3,375 | Freemium | [Compare](https://openaitools.app/compare/promptr-vs-temp-mail-generator) |
| [TrustAuthX](https://openaitools.app/tool/trustauthx) | 0 | Freemium, Paid, Free | [Compare](https://openaitools.app/compare/promptr-vs-trustauthx) |
| [IndexPlease](https://openaitools.app/tool/indexplease) | 12,997 | Freemium | [Compare](https://openaitools.app/compare/indexplease-vs-promptr) |
| [Hypi](https://openaitools.app/tool/hypi-app) | 932 | Freemium | [Compare](https://openaitools.app/compare/hypi-app-vs-promptr) |
| [Wisent](https://openaitools.app/tool/wisent) | 744 | Freemium, Free | [Compare](https://openaitools.app/compare/promptr-vs-wisent) |
| [Wokey](https://openaitools.app/tool/wokey) | 55,092 | Paid | [Compare](https://openaitools.app/compare/promptr-vs-wokey) |
| [Honcho](https://openaitools.app/tool/honcho) | 137,752 | Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/honcho-vs-promptr) |

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Source: https://openaitools.app/tool/promptr