Who should use Marker?

Marker is a B2B product built for AI agent developers and ML teams.

Does Marker have a free plan?

No — Marker is sold on an enterprise-only basis.

What platforms does Marker run on?

Marker runs on the web and API. It can also be self-hosted.

Is Marker still maintained?

Unverified. Marker has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What are alternatives to Marker?

Similar projects tracked by PulseGate include constraintloop, trajectory-judge, and COHESION.

Marker is developed by Marker, based in the United States.

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Marker

Name: Marker
Author: Marker

usemarker.aiLLM eval & observability🇺🇸

Marker provides a platform for observing real voice and chat agents, running lifelike simulations, and evaluating every interaction with shared Markers. It supports on-prem and air-gapped deployments to keep data in customer environments. The system includes loops for improving both agents and the evaluation process itself by routing machine judgments to humans for labeling, measuring agreement, and refining monitors and simulations. It is designed for teams building production voice agents who need reliable, grounded evaluation in their own cloud or on-premise infrastructure.

EnterpriseWebSelf-hostedCloud-managedAPI

Visit usemarker.ai

Overview

6 features

Marker is a LLM eval & observability project. It focuses on evaluating and improving the quality of voice and chat agents without reliable automated judges or consistent human feedback. Marker is a B2B product aimed at AI agent developers and ML teams. Marker is sold on an enterprise-only basis. It runs on the web and API, and it can be self-hosted.

It is developed by Marker (United States), and it first shipped in 2025. Among its 6 catalogued features are on-prem deployment, agent simulation, and human-in-the-loop labeling. It exposes integrations via a public API.

Summary written by a language model from the project’s public pages.

On-prem deployment
Agent simulation
Human-in-the-loop labeling
Eval calibration
Shared markers
Zero-egress mode

Built with & integrations

Framework

Astro

Hosting

Cloudflare

AI providers

openai

Connectors

API

Runs on

BrowserSelf-hostedCloud-managedAPI-only

Detected from

Astro: /_astro/ in the HTML
openai: bgpt- in the HTML
Cloudflare: cf-ray header · cf-cache-status header

Trust & compliance

Verified signals

HTTPSPrivacy Policy Terms of Service

Legal

Indexing history

What PulseGate has recorded for this listing

Indexed29 Jul · 16:13 UTC
Show HN: On-prem-deployable voice agent simulation and evals verified against its public source
Source: PulseGate · Open

Frequently asked questions about Marker

What is Marker?: Marker focuses on evaluating and improving the quality of voice and chat agents without reliable automated judges or consistent human feedback. It is catalogued under LLM eval & observability on PulseGate.
Who should use Marker?: Marker is a B2B product built for AI agent developers and ML teams.
Does Marker have a free plan?: No — Marker is sold on an enterprise-only basis.
What platforms does Marker run on?: Marker runs on the web and API. It can also be self-hosted.
Is Marker still maintained?: Unverified. Marker has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What are alternatives to Marker?: Similar projects tracked by PulseGate include constraintloop, trajectory-judge, and COHESION.constraintloop trajectory-judge COHESION
Who makes Marker?: Marker is developed by Marker, based in the United States.
How long has Marker been around?: Marker first shipped in 2025.

At a glance

Pricing: Enterprise · pricing page detected
Platforms: Api · Web
Languages: English
Built for: AI agent developers and ML teams
Model: B2B
Solves: Evaluating and improving the quality of voice and chat agents without reliable automated judges or consistent human feedback.

Live coverage

Identity confidence: Medium · 84.8
Indexed: 29 Jul 2026
Lifecycle: Alive
Last seen: 29 Jul 2026

Identity audit (13)

Slug: show-hn-on-prem-deployable-voice-agent-simulation-and-eva-usemarker-ai
Lifecycle state recorded: 29 Jul 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 29 Jul 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Summary from: Written by a language model from public pages.
Languages from: Detected by a language model, checked against the page's own declaration.
Last updated: 29 Jul 2026
Canonical URL: https://usemarker.ai/

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