SEO and marketing decision

Replymer

A capable developer can build a constrained self-hosted replacement for Replymer's core tracking, draft generation and queue UX, but reproducing multi-engine coverage, the hosted MCP agent experience, and commercial analytics polish would be hard to match.

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Built by Alexander Belogubov 🇺🇦, who ships 3 products in this index

You pay

$49/mo

$588/yr

Read off the official pricing page.

You’d pay instead

$100one-off66 h to build

$100/mo6 h/mo upkeep

On cash alone, building overtakes the subscription at 3 seats.

No open-source build does this yet

Nothing published replaces this one, so a replacement starts from an empty file. Here is what it would have to cover.

What a replacement has to do

  • Periodically run buying-question prompts for a domain through target AI engines, collect the answers and their cited sources, surface gaps where competitors are cited but you aren't, generate ready-to-post reply drafts, queue those actions, and let the user post from their own account (or have an agent drive a browser to post).

What it still won’t have

  • Full out-of-the-box coverage and normalization across six AI engines and their answer formats
  • Hosted MCP server and turnkey agent connectivity
  • White-label reports, team seats and built-in attribution plumbing
  • The commercial SLA, usability polish and the product’s hosted analytics dashboards

What remains hard

  • Brand trustTrusted by 1580+ products growing their AI visibility
Read the build prompt

First-year cost

Keep paying

Paying is—cheaper in year one.

On cash alone, building overtakes the subscription at 3 seats.

Paid seatsseats

Money you would actually spend

Keep paying
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Subscription price × seats × 12

Build it
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AI build —APIs + hosting —

Time you would spend

—

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What you would spend

What we assumed

The verdict above measures whether you could build it. This one is only about money.

Runnable build prompt

Not run yet
Build a minimal Replymer-like service using Next.js (React) frontend, a Postgres database, a Node.js worker (BullMQ) and a small REST API. Core features in scope: (1) project and tracked-prompt CRUD, (2) scheduled worker that queries a configurable list of AI engines (start with OpenAI Chat completions and one scraping-backed engine) for answers, (3) extract and store cited source URLs and mentions, (4) generate reply drafts via OpenAI and surface them in an action queue, (5) a web UI to review, edit and mark actions done, (6) a simple MCP-compatible webhook endpoint for agents to poll list_actions/get_action/mark_done, (7) basic stats endpoint (citation share by source). Out of scope: full six-engine normalization, hosted MCP server, browser automation for posting, white-label reports, multi-seat billing. Include authentication, input validation, error handling, unit and integration tests, Docker-based deployment manifests, and a README with setup and run instructions.
How we checked3 sources · 3/3 runs agreed · evidence score 62

How the score was reached

  • Partly verdict base52
  • 3 cited sources+3
  • Price verified on pricing page+3
  • 3/3 assessment runs agreed+4
  • Evidence score62

The base comes from the verdict. Everything under it is a check that either happened or did not, and each one is a fact frozen in this record rather than a judgement made at render time - so the same evidence always produces the same number.

How scoring works →

Cited sources · 3

Every page the run actually retrieved.

Integrity checks

What held up, and what did not.

✓ Price read off the page✓ 3 independent runs, one answer✓ Citations limited to fetched pages! 1 moat quoted from the page