Freedom251 › Prompt Management Software
Endprompt
What Endprompt is
Endprompt is a paid platform for building and operating LLM endpoints through web and API access. Endpoints use typed input and output schemas, while prompt edits are versioned automatically. Teams can move prompts from drafts to live use, test changes with real inputs, and roll them back when needed. Request logs show the prompt hash, model, token count, cost, and latency, and requests can be replayed. Configurable caching handles repeated inputs with a separate time-to-live setting for each endpoint. Prompts support Liquid templates, including conditional logic and loops. The service lists integrations for Next.js, Vercel AI SDK, LangChain, and OpenAI, and documents an HTTP API with cURL, JavaScript, Python, PHP, and C# examples. Plans start at $99/user/mo, with a 14-day trial that requires no credit card. Customers provide their own model-provider keys and pay those providers for token charges.
Who it suits
Endprompt suits solo developers, indie founders, product leaders, domain experts, and teams building AI products. It is also aimed at organizations needing prompt controls, testing, logs, and access management.
What it does well
- Automatic prompt versioning and rollbacks
- Test changes with real inputs
- Replayable logs with cost and latency
- Liquid templates with logic and loops
- HTTP API and multiple integrations
What to know first
- No free plan
- Starts at $99/user/mo
- Customers pay model providers separately
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Team | $199/month · Multiple users · 14-day log retention · BYO API keys · collaboration workflows · team analytics and advanced testing tools marked coming soon | $199 a month |
| Enterprise | $499/month · Unlimited users · 30-day log retention · BYO API keys · advanced RBAC · custom retention · priority support · SLA guarantees | $499 a month |
| Solo | $99/month · 1 user · 7-day log retention · BYO API keys · prompt testing · version control and rollbacks | $99 a month |
As endprompt.ai lists them, read 7 Oct 2026. The maker's own page has the final word.
Verdict
Endprompt combines prompt lifecycle controls, testing, observability, caching, and typed endpoints in one service. Its paid plans and separate model-provider charges should be considered before adoption.
Facts from Endprompt's own pages
- API
- The developer page documents a simple HTTP API and examples in cURL, JavaScript, Python, PHP, and C#. · endprompt.ai, 7 Oct 2026
- Billing and model costs
- Customers bring their own model-provider API keys and pay those providers directly for token charges; Endprompt charges for platform features. · endprompt.ai, 7 Oct 2026
- Caching
- The service offers configurable caching for repeated inputs, with cache TTL set per endpoint. · endprompt.ai, 7 Oct 2026
- Data processing
- The Terms state that Endprompt acts as a data processor when processing customer content on the customer's behalf. · endprompt.ai, 7 Oct 2026
- Integrations
- The site lists Next.js, Vercel AI SDK, LangChain, and OpenAI as integrations. · endprompt.ai, 7 Oct 2026
- Observability
- Request logs include prompt hash, model, tokens, cost, and latency, and requests can be replayed. · endprompt.ai, 7 Oct 2026
- Operator
- The Terms identify Sopro LLC as the service operator and state that operational management and decision-making occur in the United Kingdom. · endprompt.ai, 7 Oct 2026
- Product
- Endprompt provides versioned, tested, and observable LLM endpoints with typed input and output schemas. · endprompt.ai, 7 Oct 2026
- Prompt management
- Prompt changes are automatically versioned, can be promoted from draft to live, and can be rolled back. · endprompt.ai, 7 Oct 2026
- Target users
- The product is presented for solo developers, indie founders, growing teams building AI products, product leaders, and domain experts. · endprompt.ai, 7 Oct 2026
- Templating
- Prompts support Liquid templating with conditional logic and loops. · endprompt.ai, 7 Oct 2026
- Testing
- Product leaders can test prompt changes with real inputs before promoting them to production. · endprompt.ai, 7 Oct 2026
- Trial
- The 14-day free trial includes all features in the selected plan and does not require a credit card to start. · endprompt.ai, 7 Oct 2026
Where Endprompt stands on Freedom251
- Prompt Management Software#24 of 26