Agent Express
Middleware framework for building AI agents in TypeScript with tools, memory, and guardrails.
≈ 1visits/mo
Emerging · estimate, read 2026-09-19
- For
- TypeScript developers building AI agents with middleware patterns and production requirements.
- Price
- Price not read
- Activity
- Activity not read yet
- Company
- founding year not on record
- Runs as
- SDK
- Build agentic AI applications with middleware pattern
- Track token usage and enforce budget caps per session
- Validate tool inputs and outputs with guardrails
- #4
PostHog
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Kiro
Converts prompts into executable specifications and implements code with parallel agents that validate correctness.
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Devin
Executes software engineering tasks including code migrations, bug fixes, testing, and documentation generation across multiple repositories.
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TestMu AI (Formerly LambdaTest)
Runs automated tests on web and mobile applications using AI agents across browsers, devices, and environments at scale.
370kActiveFrom $17/mo2017 - #28
Replit
Builds and deploys web apps, websites, and agents from natural language descriptions.
278knot readFrom $20/mo - #33
V0 Dev
Deploys and runs applications and AI agents on serverless infrastructure with sandboxed environments and model gateways.
141knot readFrom $20/mo2015
What is Agent Express?
Middleware framework for building AI agents in TypeScript with tools, memory, and guardrails.
Who is Agent Express for?
TypeScript developers building AI agents with middleware patterns and production requirements.
Do people use Agent Express?
Emerging: ≈ 1 visits a month · estimate, 2026-09 · 23 npm installs a month.
What are alternatives to Agent Express?
In Developer tools, by use: PostHog, Kiro, Devin, TestMu AI (Formerly LambdaTest), Replit, V0 Dev.
How we read a tool
No votes, no reviews, no vendor claims. Every week a crawler reads each tool's own site and a few public registries, and the words on the card are bands over what it read.
- Use: visits to the site (estimated), installs from npm and PyPI, presence in Chrome's usage report.
- Activity: the newest release on GitHub, npm or PyPI; the newest dated page on the site; open roles on a public jobs board.
- Price: the vendor's own pricing page, read with the date. A figure is printed only when it is on that page.
- The line and the use cases are written by us from the homepage, one row at a time, and refused when they repeat the vendor's marketing.
How AI assistants read each site — the reading vendors ask us about — is on each tool's own visibility page.