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AI · alternatives · 2026

24 alternatives to Buyer-eval

Stop trusting vendor demos. Interrogate them with AI first.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1
    Agent 37▲401

    Hey HN, I noticed there are 1,000+ MCP skills on GitHub with zero way for creators to charge for them. So I built Agent37. Selling Claude skills today means asking customers to download your skill, set up Claude Code on their laptops, configure MCP servers, and pray it works. No trial, no updates, often you're just handing over the source. Agent37 lets creators upload a skill, share a link, and anyone can try it instantly (no Claude account needed). Built-in Stripe, creators keep 80%. Looking for feedback on the approach. Would you use something like this?

    Mar 2026 · agent37.com · its alternatives →

  2. 2
    Atla▲492

    Automatically detect errors in your AI agents

    2025 · atla-ai.com · its alternatives →

  3. 3

    A test runner for agentskills.io-style AI agent skills - darkrishabh/agent-skills-eval

    May 2026 · github.com · its alternatives →

  4. 4

    A team of AI agents that runs your stores across channels

    Jun 2026 · sellerai.com · its alternatives →

  5. 5
    Tessl▲260

    I'm Guy, the founder behind Snyk — now building Tessl, a package manager for agent skills. We’ve recently witnessed that most teams still treat skills as static artifacts: markdown files, created or copied from repo to repo. This approach offers a strong initial boost, but quickly creates debt: - Skills are duplicated, and updates never roll out. - Poor quality skills go unseen, misguiding agents instead of helping. - Skill knowledge grows stale, and don’t keep up with the systems and practices they describe. Without a way to evaluate skills, teams have no clear way to understand how good a…

    Feb 2026 · tessl.io · its alternatives →

  6. 6
    Clearitty▲285

    Human-verified signals for smarter sales outreach

    2025 · clearitty.com · its alternatives →

  7. 7

    Measure the full AI SDLC. From token to production.

    Apr 2026 · waydev.co · its alternatives →

  8. 8

    An open benchmark for AI agents that test APIs

    May 2026 · resources.kusho.ai · its alternatives →

  9. 9
    AgentR▲139

    Hiring evaluation built for the AI cheating era

    2025 · agentr.global · its alternatives →

  10. 10
    ZeroClick▲131

    Sell your product to AI agents

    Sep 2026 · zeroclick.ai · its alternatives →

  11. 11
    Propello▲103

    Create the pipeline you never had

    May 2026 · propello.io · its alternatives →

  12. 12

    Hey HN, We’re two developers (co-founders) with a team of 20 who got tired of spending hours reviewing PRs, so we built Infinitcode.ai, an AI-powered code reviewer that: - *Summarizes PRs in plain English*: No more deciphering 1,000-line diff jungles - *Catches more than bugs*: Security holes, performance pitfalls, code smells, even typos (yes, we’ll flag “vurnerabilities” and vulnerabilities) - *Zero onboarding*: Works instantly—no “let me learn your codebase for weeks” nonsense. Why we’re posting: We’re in alpha and need brutal honesty. Roast our tool, mock our UI, or tell us why AI will…

    2025 · infinitcode.ai · its alternatives →

  13. 13

    I’ve spent the past 10 years working on AI in finance, with much of that time focused on building evaluation systems for production environments. As agents become more widely adopted, more software engineering and product people have start building them. But I’ve noticed that many teams are not yet fluent in systematic evaluation, or in the processes needed to keep agent quality high over time. For large organizations, that gap is rarely the bottleneck due to dedicated teams. But after speaking with a number of startups, it became clear that building strong, up-to-date evals is much harder…

    May 2026 · github.com · its alternatives →

  14. 14

    Hey HN! We’ve been building an MCP server to help AI-assisted web app developers by using browser agents to test whether changes made by an AI inside an editor actually work. We've been testing it on scenarios like verifying new flows in a UI, or checking that sending a chat request triggers a response. The idea is to let your coding agent both code and evaluate if what it did was correct. Here’s a short demo with Cursor: https://www.youtube.com/watch?v=_AoQK-bwR0w When building apps, we found the hardest part of AI-assisted coding isn’t the coding—it’s tedious point-and-click…

    2025 · github.com · its alternatives →

  15. 15

    This project (Agents Observe) started as an exploration into building automation harnesses around claude code. I needed a way to see exactly what teams of agents were doing in realtime and to filter and search their output. A few interesting learnings from building and using this: - Claude code hooks are blocking - performance degrades rapidly if you have a lot of plugins that use hooks - Hooks provide a lot more useful info than OTEL data - Claude's jsonl files provide the full picture - Lifecycle management of MCP processes started by plugins is a bit kludgy at best The biggest takeaway is…

    Apr 2026 · github.com · its alternatives →

  16. 16

    Deterministic offline release evidence for AI agents

    Jul 2026 · iisacc-justmoong.github.io · its alternatives →

  17. 17

    Free eval for your AI agent. No keys, no SaaS

    May 2026 · github.com · its alternatives →

  18. 18

    Hi HN! We're Giacomo and Roberto, authors of Ratel (https://github.com/ratel-ai/ratel) We used to help SaaS companies build agents on top of their products. Whenever we wanted to expand the agents’ complexity/scope, by adding more and more tools and instructions, we always run in the same issue: context bloat, with frequent hallucinations and sky high token bills. So we started constantly engineering the agents, dynamically loading tools, splitting them into subagents, inventing our own way to support skills And that's exactly when we started building Ratel: a…

    Jul 2026 · github.com · its alternatives →

  19. 19

    GO / FIX / KILL — before you spend on ads.

    Jan 2026 · evalyai.com · its alternatives →

  20. 20

    Hi HN! Run it: OPENROUTER_API_KEY="sk" npx bff-eval --demo We built a tool to help people take LLM outputs and easily grade them / eval them to know how good an assistant response is. We've built a number of LLM apps, and while we could ship decent tech demos, we were disappointed with how they'd perform over time. We worked with a few companies who had the same problem, and found out scientifically building prompts and evals is far from a solved problem... writing these things feels more like directing a play than coding. Inspired by Anthropic's constitutional ai concepts, and amazing…

    2025 · github.com · its alternatives →

  21. 21
    Spec27▲34

    Hi HN! We’re a team of ML validation specialists and we’ve been building /Spec27, a tool for testing whether AI agents still do their job safely and reliably as models, prompts, tools, and surrounding systems change. We started working on this because a lot of current LLM evaluation work seems aimed at scoring general model behavior, while many teams are deploying systems that have a specific mission to fulfill. Many of the tools also assume you have full access to the agent stack and traces so you can place SDKs and Gateways, but a lot of agents are being created on vendor platforms…

    Apr 2026 · spec27.ai · its alternatives →

  22. 22

    Contribute to alpbahadur/interns-review-plugin development by creating an account on GitHub.

    Sep 2026 · github.com · its alternatives →

  23. 23
    Eval-X▲5

    See how engineers think with AI, not just what they build

    Jun 2026 · eval-x.com · its alternatives →

  24. 24
    Eval▲4

    Your AI Codepilot

    2023 · evalplatform.com · its alternatives →

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Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →