Eloquent JavaScript VS VATES.jp

What it is

Embeddable B2B AI infrastructure. Developers integrate conversational AI into their own product through an API, in the same role as Stripe or Twilio. It also runs as a self-serve SaaS — an embedded widget added with one line of JavaScript, or a standalone URL. Both share one foundation.

How it differs from RAG

Knowledge is stored as structured plain text and interpreted at query time. No vector database, no embedding step, no re-ranking.

Updates take effect the moment a line is written — no re-embedding, no re-indexing.
The knowledge base stays inspectable plain text, so its contents can be read and audited directly.
Editing or deleting a line removes it, verifiable by inspection.
No dedicated vector database, no GPU, no per-use embedding API.

Three roles

bard — turns natural language, images and PDFs into structured entries.
druid — management UI: full-scan search, log analysis, reference tracing.
vates — the conversational interface; replies in the reader's language.

MCP

A remote MCP server is included, so external AI agents can query a knowledge base directly — by OAuth as a custom connector, or with a bearer API key. One tool is exposed, vates_ask, and it is read-only: it cannot change settings, read conversation logs, or reach other instances. Access is revocable from the console.

Operations

Setup, instance settings, the knowledge base, billing and security are all operable from a phone. Hash-chained tamper-evident audit logs, passkeys, 2FA, per-customer IP allow/denylists, per-instance rate and consumption limits, encrypted daily backups, and an automated data-retention lifecycle.

Pricing

Deposit-based. No subscription, no monthly fee, no minimum spend. Usage is deducted from a prepaid balance; minimum top-up is USD 5.00.

Questions & Answers

As answered by people managing Eloquent JavaScript and VATES.jp.

What makes your product unique?

VATES.jp's answer:

Knowledge is held as structured plain text and interpreted at the moment it is queried. There is no vector database, no embedding step, and no re-ranking. A line written into the knowledge base takes effect immediately, with no re-indexing, and the contents stay readable — you can see exactly what the system holds, and delete a line and verify it is gone.

Why should a person choose your product over its competitors?

VATES.jp's answer:

Fewer moving parts. No vector database to run, no GPU, no per-use embedding API — which lowers both cost and the number of things that can break. Nothing is hidden behind numeric vectors, so answers can be traced to the material behind them. Billing is a prepaid deposit with no subscription and no monthly fee, so it can be tried at small scale and grown without renegotiating a contract.

How would you describe the primary audience of your product?

VATES.jp's answer:

Two groups. Developers who want to embed conversational AI into their own product through an API, in the same role as Stripe or Twilio. And small to mid-sized businesses that want to run it out of the box — as a widget on their site or a standalone chat — without engineering work. Both are served by the same foundation.

Which are the primary technologies used for building your product?

VATES.jp's answer:

Python and FastAPI on the backend, React with Vite on the front end, SQLite for storage, on Ubuntu with Nginx. Payments through Stripe. Deployed on AWS EC2 behind Cloudflare. Notably absent: there is no vector database and no embedding pipeline in the stack.

What's the story behind your product?

VATES.jp's answer:

VATES is built by STANDOUT Inc. in Okayama, Japan, on a theory its developer worked out independently rather than assembling from existing frameworks. The premise is that meaning is not fixed in a symbol but arises when something is observed — so knowledge is kept as structure and interpreted at read time rather than compressed into coordinates in advance.

A concise formulation has been published as a preprint, IIIS: An Inter-Intelligence Intermediary Syntax for Shared Observation Across Perceptions (https://doi.org/10.5281/zenodo.21374493). The full theory is being prepared as a book.

The three working roles are named after the Celtic oral tradition: bard receives, druid keeps, vates speaks across.

Social recommendations and mentions

Based on our record, Eloquent JavaScript seems to be more popular. It has been mentiond 218 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Eloquent JavaScript mentions (218)

My Azure Cloud Resume Challenge Journey
If you haven’t read Eloquent JavaScript , go check it out. It’s one of my all-time favourite programming books — hands down. - Source: dev.to / 10 months ago
How do we learn to get good at programming
Videos, blogs, text-based teachings, YouTube project-based learning, books, and the like are all examples of various methods and mediums of acquiring skills, especially in the software engineering industry. As I continue to navigate this challenge, I've made major changes, one being that I will now document the journey, and the other, I switched to reading books on JavaScript. I currently use the book ELOQUENT... - Source: dev.to / almost 2 years ago
Ask HN: Changing my mind about JavaScript
Seconded. I won't recommend it and no one I know has recommended it for a decade. It's hard for someone who doesn't know JS to know which parts has changed and is no longer the way to do things. https://github.com/getify/You-Dont-Know-JS are the 2 best source for learning JS. If you don't have time to read both, just go with https://eloquentjavascript.net/ If one needs to go further, go through... - Source: Hacker News / almost 2 years ago
Ask HN: Changing my mind about JavaScript
> Do you have any tip for learning js at it's fundamentals? I would recommend: - https://eloquentjavascript.net/ - https://javascript.info/. - Source: Hacker News / almost 2 years ago
Top 12 JavaScript Resources for Learning and Mastery
Eloquent JavaScript is a free online book by Marijn Haverbeke. It's a great resource for learning JavaScript from scratch, with a focus on writing clean and effective code. - Source: dev.to / almost 2 years ago

VATES.jp mentions (0)

We have not tracked any mentions of VATES.jp yet. Tracking of VATES.jp recommendations started around Jul 2026.

What are some alternatives?

When comparing Eloquent JavaScript and VATES.jp, you can also consider the following products

VS Code - Build and debug modern web and cloud applications, by Microsoft

CustomGPT.ai - Turn Data into Dialogue with AI-Driven Precision.

CodePen - A front end web development playground.

Dialogflow - Conversational UX Platform. (ex API.ai)

GitHub - Originally founded as a project to simplify sharing code, GitHub has grown into an application used by over a million people to store over two million code repositories, making GitHub the largest code host in the world.

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