Comma vs display.dev
TL;DR
Both products answer the same question — where does agent-generated HTML land? display.dev's framing is "a URL for everything your agents make": publish behind your company's auth, comment inline, close the loop over MCP. Comma covers that same publish-comment-MCP core and extends it upstream: routines run the agent itself on a cron, skills define the report the routine produces, and the result is the full schedule → publish → review → revise loop inside one product — with a $9 entry point for individuals.
If you only need a gated URL plus comments for artifacts your agents already produce on their own schedule, both tools do that job. If you want the schedule and the run hosted too, that's the slice Comma has and display.dev doesn't.
At a glance
| Comma | display.dev | |
|---|---|---|
| Category | HTML report workspace + hosted agent runs | URL + review layer for agent output |
| Input | Any HTML, from any tool or agent | HTML your agents make |
| Inline / anchored comments | Yes — anchored to text and table cells | Yes — inline |
| Agent loop (MCP) | Yes — scoped comma_sk_… tokens |
Yes |
| Scheduled runs | Routines: daily (Pro), hourly (Team), hosted by Comma | Not hosted — bring your own scheduler |
| Report definitions (skills) | Yes — reusable skills routines execute | No |
| Default sharing posture | Public view-only link (configurable per report) | Behind company auth |
| Share roles | Private / registered / domain / public, per-link permission | Company auth |
| Free tier | Unlimited reports and commenters, API + MCP | $0 tier |
| Paid entry | $9 / month (Pro) | $15 / month |
| Team pricing | $75 / seat | $49 / month |
| Top tier | Enterprise (custom; BYO Bedrock, SSO, audit log) | $499+ / month |
What display.dev is good at
Giving agent output a home behind your login. The pitch is clean: your agents make things — dashboards, summaries, artifacts — and each one gets a URL that anyone in your company can open and nobody outside it can. Inline comments put the discussion on the artifact, and the MCP loop means the agent that made the thing can read what people said about it. The company-auth default removes a whole class of "is this link safe to send" questions: everything is internal unless you decide otherwise.
If your agents already run themselves — in CI, on your own cron, inside Claude Code Routines — and the missing piece is purely the destination, display.dev covers that destination well.
What Comma is good at
The whole loop, including the part before publishing. Comma covers the same destination surface — faithful sandboxed rendering, comments anchored to the exact paragraph or table cell, share links, an MCP server gated by the same scoped token as the REST API. On top of that:
- Routines. A hosted cron that runs the agent and republishes the report as a revision on the same link — daily on Pro, hourly on Team, with prepaid cost caps so a scheduled run can't produce a surprise bill. You don't keep a machine awake or own the scheduler.
- Skills. The reusable definition of what a routine produces — the prompt, the tools, the shape of the report. Define the weekly digest once; the routine executes it on cadence.
- Revisions with diffs. Each run lands as a revision under a stable
URL; reviewers' threads carry across runs and the agent reads them
(
list_comments) before shipping the next one. - Share roles per report. Private, registered-users-only, domain-restricted, or public, with view/comment/edit link permissions — including the genuinely public link when a report is meant to leave the building.
Where each one wins, in detail
Publishing and review
Even. Both render agent HTML at a URL and put comments on it. Comma's comments anchor to selections — a sentence, a table cell — which matters once feedback gets specific; the agent reads back which text each comment refers to.
Access control posture
Different defaults, pick your shape. display.dev gates everything behind company auth by default — the safest posture for purely internal output. Comma's API default is a public view-only link (built for "drop it in Slack and it just opens"), with private, registered, and domain-restricted roles when you tighten it. If your requirement is "never linkable externally, ever," display.dev's default matches it; if you need both internal review and the occasional public artifact, Comma's per-report roles cover the range.
The schedule and the run
Comma wins — this is the structural difference. With display.dev, the agent runs somewhere you operate, and display.dev receives the output. With Comma, the schedule, the execution (against a skill), the cost cap, and the publishing can all live in Comma. One product owns schedule → publish → review → revise, and one revocable token pulls the whole loop.
Pricing
Depends on team shape. For an individual: Comma Pro at $9 undercuts display.dev's $15 entry tier — and Comma's $9 includes the hosted daily schedule. For a mid-size team: display.dev's $49 flat tier can come in under Comma's $75/seat if several people need creator seats. Comma never charges for reviewers or commenters on any plan; check what display.dev's tiers meter before comparing totals. At the top end, Comma Enterprise is custom (BYO AWS Bedrock, SSO, audit log) against display.dev's $499+.
Who display.dev is best for
- Teams whose agents already have a scheduler and just need a gated destination.
- Organizations where "everything behind company auth, no exceptions" is the policy.
- Flat-rate team pricing at the $49 tier fitting several creators.
Who Comma is best for
- Anyone who wants the schedule hosted too — define a skill, set a cadence, and the report refreshes itself with cost caps.
- Individuals and small teams: $9 Pro is the lowest paid entry of the two, and reviewers are free on every plan.
- Teams that need the full range of share roles, from private to a real public link.
- Agent operators who want one revocable token across REST, MCP, and every routine it created.
Try Comma
Free covers the core honestly: unlimited reports and commenters, anchored comments, full API and MCP access. Put a report on a schedule when you're ready — that's the paid line.