Stop hardcodingyour prompts.

Echostash is prompt infrastructure for teams that ship AI products. Version control, evaluation, and deployment — built for developers.

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14+
Assertion types
<50ms
Render latency (p99)
75%
Average token reduction
100%
Quality gates in CI/CD

Prompt spaghetti is real

Managing prompts in code leads to scattered, unmaintainable strings that waste tokens and require deployments for every change.

Scattered across the codebase

Centralized prompt library

No way to test prompt changes

Built-in evals and quality gates

Tokens wasted on irrelevant context

75% average token reduction

Logic in strings is a nightmare

Rich operator set + conditionals

Prompts that think before they speak

Echo DSL brings programming concepts to your prompts. Same template, different outputs based on context.

Variables render at runtime

Dynamic value injection with transforms and defaults.

Conditionals filter irrelevant sections

Runtime branching based on context variables.

Modular prompt blocks

Share sections across templates with partials.

LLM-evaluated conditions

Advanced

AI Gate for intelligent content selection.

Everything you need, nothing you don't

Only include relevant content. Filter out noise. Reduce token costs.

import { Echostash } from "@goreal-ai/echostash"

// Initialize the client
const es = new Echostash({
  apiKey: process.env.ECHOSTASH_API_KEY
})

// Fetch, render, and convert to OpenAI format
const messages = await es.prompt("welcome-message")
  .vars({ userName: "Alice", language: "English" })
  .openai()

Works with your stack

Echostash integrates seamlessly with all leading AI platforms. Use our SDK to convert prompts to any provider format.

OpenAI
Anthropic
Google
Meta
Mistral
example.ts
import { toOpenAI, toAnthropic } from "@echostash/sdk"

// Convert to OpenAI format
const openaiPrompt = toOpenAI(prompt)

// Convert to Anthropic format
const anthropicPrompt = toAnthropic(prompt)

Built on open source, built to last

Echo PDK and the Prompt Library Protocol (PLP) are open source. Build on a foundation you can trust and extend.

Ship prompts like you ship code.

Version control, evals, quality gates, and deployment targets. Start free, scale as you grow.