Plan-first architecture
Before a single file is edited, Echo writes the technical blueprint: the route graph, the data model and the API contracts. You can read it, disagree with it, and change it while changing it is still free.
Features
Echo is a software-building pipeline, not a chat box. These are the capabilities it ships with, described in terms of what they produce for you — a plan you can read, a build that runs, and code you own.
01 / Capabilities
Explore the tools available for planning, building, reviewing, and sharing your project.
Before a single file is edited, Echo writes the technical blueprint: the route graph, the data model and the API contracts. You can read it, disagree with it, and change it while changing it is still free.
Specialist agents implement the interface, the state layer, the server routes and quality checks concurrently, working from the same plan and editing separate parts of the codebase.
Echo can compile and check an application in an isolated sandbox. Review the reported results alongside the preview; a draft can be available before all checks finish.
Export the complete project as a ZIP, or push it straight to GitHub, GitLab, Bitbucket or Gitea. Standard React, Next.js and TypeScript — no proprietary runtime in the middle.
Connect OpenAI, Anthropic, Google Gemini, Groq or OpenRouter credentials and pay the provider directly, with no token markup from Echo. Runs on this path consume no managed Echo credits.
Connect the services a project actually needs — payments, authentication, databases, storage, email, analytics — with credentials encrypted before storage and scoped to the workspace.
Prepare a build for publishing, set environment variables, configure custom domains, and hand the result to a hosting provider you have connected. The provider makes the final call.
Project-level security scans, plus a Production Check covering environment variables, routes and accessibility before you publish an application to real users.
Organise work into workspaces with members, roles and per-member credit limits, so a team can share one product without sharing one budget blindly.
Every file change, agent decision and revision is recorded, so a follow-up instruction edits the right thing and you can review exactly what moved.
02 / Connected services
Plugins connect a workspace to the external services a project needs. You supply the credentials; Echo encrypts them before storage, scopes them to the workspace, and verifies supported credentials before saving. Anything not in the catalogue can be added as a custom plugin or an MCP server.
03 / Honest limits
Verification reports the checks that ran and their results. It cannot guarantee that business logic, integrations, accessibility, or security are correct. Review and test your application before real users rely on it.
The free plan includes a workspace, interactive previews and full source-code export. Bring your own AI provider keys and Echo adds no token markup.