# Brand voice tools for agencies compared, per client · ScriptGrain > Nine brand voice tools compared for agency use: per-client voice profiles, seats, whether drafts are scored against the client, API and MCP access, and what ten client voices cost, with check dates. Canonical: https://scriptgrain.com/reference/brand-voice-tools-for-agencies # Best brand voice tools for agencies in 2026: what each one measures per client *By Jack Stovell · published 2026-09-21 · checked 2026-09-20* An agency needs one voice per client that cannot bleed into the next, seats for the writers, a way to prove a draft sounds like the client, and access from the tools the team already uses. Below is what nine tools offer on each, read from their own pages. ## What an agency needs from a voice tool Here's the thing: most of the tools in this category were built for one person writing about one brand. Agencies are not that. An agency runs ten clients through five writers, and a voice that leaks from Client A into Client B's draft is a fireable mistake, not a quirk. So the checklist is short. Multiple voice profiles that stay separate. Seats, so more than one writer can use a profile without sharing a login. Some proof, ideally a number, that a draft actually matches the client's voice rather than a generic "sounds fine" read from a tired editor at 6pm. And access through the tools the team already has open: ChatGPT, Claude, whatever MCP client is running that week. Not every tool clears all four. Some clear one very well and ignore the rest. That's fine, as long as you know which is which before you buy seats for a team of six. ## The tools, per client Across the category, the split is pretty stark. LinkedIn-and-X tools like VoiceMoat and ContentIn manage several profiles, but only for social posts, not for blogs, emails or landing pages. Enterprise platforms like Jasper, Writer, Acrolinx and Typeface handle brand kits and governance at scale, with pricing that's per seat or on request. Lighter tools like Noren, DoppelWriter, Rytr and Copy.ai sit somewhere in between, often with a single profile and no scoring at all. The matrix below (see the [full comparison](https://scriptgrain.com/reference/ai-writing-voice-tools-matrix)) lays out plans, profile limits and whether each tool publishes an API or an MCP server. Read it before you commit seats to anyone. A tool at $39 a month looks cheap until you realise it caps you at one profile and you're running ten clients. One pattern holds across the entire 2026-09-20 harvest, 61 tools and 14,792 pages of them: no competitor page publishes a scoring method for voice, an attribute list, or before-and-after numbers on a single brief. Vendors say "it sounds like you" a lot. None show the working. Tool · Per-client voice profiles · Team seats · Scores each draft against the client · API / MCP · Price basis · Checked ScriptGrain Studio · 10 profiles · 3 included, £15 each extra · Yes, 0 to 1 with the attributes that moved · Both, every plan · £99 a month · 2026-09-20 ScriptGrain Agency · Unlimited · 10 included, £25 each extra · Yes · Both, every plan · £299 a month · 2026-09-20 Jasper Pro · 2 Brand Voices per seat plan · Per seat · No per-draft score; a brand compliance diagnostic · API on Business; MCP · $69 a seat a month · 2026-07-30 Writer · Departmental brand and voice profiles (Enterprise); 1 team Personality profile (Starter) · Per seat · No · API documented · Not shown in a static read · 2026-09-20 Acrolinx · Style-guide rules per brand · Enterprise · Content scored against the style guide · API documented · Request a demo · 2026-09-20 Typeface · Brand kits · Enterprise · No · MCP (OAuth 2.1) · Contact sales · 2026-09-20 Copy.ai · Brand voice per workspace · Per seat · No · Not published · From $29 a month · 2026-08-03 ContentIn Pro · Multi-profile management, LinkedIn only · Unlimited seats · No · MCP on Pro · $59 a month · 2026-09-20 VoiceMoat Enterprise · Up to 6 profiles, X and LinkedIn only · Team seats · 0 to 100 score, method not published · MCP on Pro and up · $150 a month · 2026-09-20 ## Jasper, Writer, Acrolinx and Typeface These four are the enterprise tier, and they're built for governance rather than for a solo writer chasing tone. Jasper and Typeface are marketing platforms with brand kits baked in. Writer and Acrolinx are enterprise content platforms built around style-guide enforcement, the kind of thing a compliance team asks for by name. Jasper's Pro plan is $69 a seat and includes two Brand Voices; Business is custom pricing with API access. It has an MCP server at jasper.ai/mcp and a Brand Score, but that score is a site diagnostic, not a per-draft check. It tells you how your website reads, not how today's blog post reads against yesterday's. Writer offers a 14-day trial. Starter goes up to five users with one Personality profile, priced as shown in the browser, and Enterprise is custom. Its API is documented. No own MCP page was found on its site as of the harvest date. Acrolinx doesn't publish pricing at all; you request a demo. What it does instead is score content against a style guide, which is a genuinely different job from scoring against a voice. A style guide catches "don't use passive voice." It won't catch "this doesn't sound like the client." Acrolinx documents its API. No MCP page was found. Typeface is contact-sales only, no published price. It does run an MCP server with OAuth 2.1, which is more security plumbing than most tools in this list bother with. None of the four publishes a per-draft voice-score method. That's not a knock specific to them; it's the pattern across the whole category, as the harvest above shows. If your agency needs proof a draft matches a client's voice, on a per-brief basis, these four aren't where you'll find it published. You might see a claim on a sales call. It won't be on the page. ## The LinkedIn tools ContentIn and VoiceMoat both manage several client profiles, which sounds like exactly what an agency wants until you notice the ceiling: LinkedIn and X, and nothing else. VoiceMoat runs Free at $0 (10 credits a day, one profile), Creator at $35, Pro at $69, and Enterprise at $150 a month. It posts to X and LinkedIn, gives a 0 to 100 voice score with no published method behind it, and includes an MCP server with 15 tools on Pro and up. No API is published. None of its 100 pages carries a named author. ContentIn's pricing, read from its own comparison pages, runs Starter at $19, Growth at $39 (unlimited AI drafts "in your voice"), and Pro at $59, which includes unlimited seats, multi-profile support and a LinkedIn MCP server. It's LinkedIn only. No score published. Both are worth knowing well if your agency lives on LinkedIn content and nothing else. See [Jasper compared](https://scriptgrain.com/vs/jasper), [VoiceMoat compared](https://scriptgrain.com/vs/voicemoat) and [ContentIn compared](https://scriptgrain.com/vs/contentin) for the longer breakdowns. But if a client also needs a newsletter, a landing page or a pitch deck in their voice, these two stop at the door. ## Where each is genuinely better Fair enough, credit where it's due. Jasper's integrations and campaign tooling are ahead of most of the category; if your agency runs multi-channel campaigns with a lot of moving parts, that's real strength, not marketing gloss. Writer and Acrolinx win on governance and compliance, the sort of enterprise checkbox that matters a great deal to regulated clients and not at all to a two-person shop. ContentIn's scheduling and analytics are solid if LinkedIn is genuinely most of the workload. VoiceMoat's posting is the same story: narrow, but done properly. None of that changes the per-draft voice question. Being better at scheduling doesn't mean a tool proves a draft sounds like the client. Those are different jobs, and it's worth not confusing them when you're the one signing the invoice. ## What ten client voices cost Here's where it gets genuinely simple to compare, because most vendors won't give you a straight number. ScriptGrain Studio is £99 a month for 10 profiles and 3 seats. That's stated plainly on its own pricing page: ten separate client voices, three writers working across them, one price. Everyone else in this piece prices per seat or on request, so there's no honest way to build a comparable total; adding up list prices for ten client profiles across Jasper, Writer, Acrolinx or Typeface means guessing at seat counts and custom quotes that aren't published. That's not a gap in this piece. It's a gap in what those vendors publish. If an agency wants to see the attribute-level method behind a voice score before spending anything, that's laid out at [the voice measurement framework](https://scriptgrain.com/reference/voice-measurement-framework), alongside a [brand voice guidelines template](https://scriptgrain.com/reference/brand-voice-guidelines-template) for agencies building their own client documentation. There's also a standalone [drift check](https://scriptgrain.com/tools/multi-client-voice-drift-check) for agencies that just want to catch voice bleed between clients without buying a full seat. And the [agency page](https://scriptgrain.com/for-agencies) covers how the seat and profile counts scale past ten clients. ## Limits Enterprise pricing on request cannot be totalled honestly, so no ten-client figure is given for Jasper, Writer, Acrolinx or Typeface; the comparison rests on what each vendor publishes, read on the dates shown, and a sales call may offer more. Seat counts, governance depth and integration breadth are not measured here, only stated. ScriptGrain"s own weaknesses for agencies are named above: no scheduling, no publishing, no approval workflow." ## Questions ### Do any of these tools score a draft against a client's voice automatically? Not from what's published. VoiceMoat gives a 0 to 100 score with no stated method. Jasper's Brand Score checks a website, not a draft. Acrolinx checks against a style guide, which is a different job. Across the 2026-09-20 harvest of 61 tools, none publishes a scoring method, an attribute list, or before-and-after numbers on one brief. ### Can one tool handle both LinkedIn posts and long-form content for the same client? ContentIn and VoiceMoat are LinkedIn and X only, so no, not on their own. The enterprise platforms (Jasper, Writer, Acrolinx, Typeface) aren't channel-limited in the same way, but none of them publishes a per-draft voice check either, so channel coverage and voice proof are two separate questions worth asking separately. ### What does "per seat or on request" actually mean for agency budgeting? It means the vendor hasn't published a number you can multiply by ten clients and get an honest total. Writer's Starter price renders in the browser rather than sitting on the page as text. Acrolinx and Typeface are demo-only. Budgeting against these requires a sales call, not a pricing page, which is exactly why ScriptGrain's flat £99 for ten profiles stands out as a comparison point. ### Does an MCP server matter if my team mostly uses ChatGPT or Claude directly? It matters the moment a writer wants the client's voice profile available inside the tool they already have open, rather than copying instructions between tabs. Claude's Projects and Styles apply instructions and samples but measure nothing. An MCP server, where one exists (Jasper, Typeface, VoiceMoat on Pro and up), lets the profile travel to the client instead of the other way round. ### Is a higher voice score always better? A score is only as useful as the method behind it, and most vendors don't publish one. VoiceMoat's 0 to 100 score has no stated method attached to it anywhere on its pages. A number without a visible method is a claim, not a measurement, and it's worth treating it that way before quoting it back to a client as proof. ## Methodology Every fact was read from the vendor's own pricing or product page on the date shown (2026-09-20 harvest of 61 tools, or the dated /vs verification). 'Not shown' means the page did not state it. Prices move; re-checked monthly. ## Sources - [Jasper pricing](https://www.jasper.ai/pricing) - [Writer plans](https://writer.com/plans/) - [Acrolinx](https://www.acrolinx.com/) - [Typeface MCP](https://www.typeface.ai/mcp) - [ContentIn comparisons](https://contentin.io/vs/) - [VoiceMoat pricing](https://voicemoat.com/pricing) - [ScriptGrain pricing](https://scriptgrain.com/pricing)