--- title: "Claude with Rainbrand for Extropic | Rainbrand" description: "Claude used Rainbrand to make an interactive circuit sampler, a 20-second film and a Z1 datasheet for Extropic." url: "https://www.rainbrand.com/examples/extropic/" --- # Claude with Rainbrand for [Extropic](https://extropic.ai/). [![Extropic’s homepage, extropic.ai: the glowing orange word Thermodynamic above Computing in white serif capitals, over a dark close-up of gold hardware.](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Foutputs%2Fextropic-home-hero.webp&w=3840&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4)](https://extropic.ai/) Extropic today [extropic.ai](https://extropic.ai/) ## Step 0: Start with one prompt Claude chose what to make and wrote this prompt, with the Rainbrand MCP connected. > Use Rainbrand and Extropic’s brand to explain its thermodynamic computing hardware to developers and researchers, using only facts from extropic.ai. Make an interactive page where readers tune and sample the four probabilistic circuits on its X0 chip, a 20-second film that climbs from one pbit to the billion-pbit cluster Extropic plans for 2027, and a two-page Z1 datasheet. Don’t extend Extropic’s efficiency claims, and label the pieces as concepts. ## Step 1: Add a brand Added to Rainbrand from [extropic.ai](https://extropic.ai/). It listed Times New Roman for headings, which the site never loads, so Claude corrected that with a Brand Edit. A sample of what Claude could use: Logo ![Extropic’s mark: a solid diamond with four stippled wings](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2Fbd0e5812-c39d-4e46-8429-171a3d19bf8e.webp&w=640&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) The standalone stippled mark, the default logo Colours - Accent #F5D54C - Background #1C0101 - Text #FFFFFF - Card border #374151 Typefaces Aa Bb 123 Kessler Aa Bb 123 Suisse Aa Bb 123 Suisse Mono Files 65 ![Extropic brand image: The Z1 thermo compute stick](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2F84705c75-dbd4-4a9b-9b4d-f0fc9e231f99.webp&w=3840&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4)![Extropic brand image: The XTR-0 platform](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2F2e2bead5-c42a-44c2-81bc-959adaa829c5.webp&w=3840&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4)![Extropic brand image: A gold state trace with its probability density](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2F014350fa-0f4e-4f06-8661-c54d7a79771b.webp&w=3840&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4)![Extropic brand image: The Extropic wordmark over amber light](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2Fa541318e-a82c-4241-8a2e-f2469e7eb249.webp&w=3840&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Guidance 7 > “Favor precise, explanatory language over unsupported hype.” Voice, colour, type, logo, product and editorial imagery ## Step 2: Ask for Briefs Claude asked for 2 Briefs first: one for the sampler, one for the film and datasheet. ### For the circuit sampler #### Claude asked for rainbrand · create\_brief task: “Design an interactive web page that explains the four probabilistic circuits Extropic demonstrated on its X0 chip, for developers and researchers who are new to thermodynamic computing. Readers tune each circuit and watch it sample: a pbit (0 or 1 with a set probability, like a weighted coin), a pdit (one of k outcomes with configurable probabilities, like a weighted die), a pmode (a programmable Gaussian with a set mean and variance) and a pmog (a mixture of Gaussians, using a pdit to select between pmodes). Each circuit shows a live trace of its output over time and a histogram that fills in against the target distribution, with short plain-language captions on what it does and where it fits: X0 proved these circuits in silicon, and the Z1 chip carries 269,568 pbits. The page runs as a simulation in the browser and must say so. It should look like Extropic's own technical figures and pages, work on desktop and phone, and make no performance claims beyond what Extropic states.” #### Rainbrand sent back in 37 s Guidance Extropic brand context for the probabilistic-circuits explainer Figures: “dark plotting fields, fine white axes and labels, and warm yellow/gold traces and curves” Simulation: “state clearly that samples are generated by an in-browser simulation, not a live X0/Z1 device” Facts: “The supplied Brand materials do not verify that X0 demonstrated these four circuits in silicon” so Claude checked them on Extropic’s hardware page. Also: Palette, buttons, logo, typography Files 10 ![Extropic’s stippled mark](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2Fbd0e5812-c39d-4e46-8429-171a3d19bf8e.webp&w=256&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Kessler Suisse Suisse Mono Font files, each with a specimen - ![Brief image: A gold state trace with its probability density](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2F014350fa-0f4e-4f06-8661-c54d7a79771b.webp&w=3840&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) - ![Brief image: Binary switching data on a sigmoid curve](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2Fb3f5e638-d80a-4714-9979-a7660c3d2ea0.webp&w=3840&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) - ![Brief image: Two-mode distributions in gold and orange](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2Fbd5d2422-b5fe-4ba8-9a00-68481d4b0357.webp&w=3840&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) ### For the film and the datasheet #### Claude asked for rainbrand · create\_brief task: “Make two pieces about Extropic's Z1 chip and the systems built on it, for engineers and technical buyers following the hardware, using only the figures in Extropic's Summer 2026 update. (1) A 20-second 16:9 film that climbs the systems hierarchy: one pbit, a pbit connected to sixteen neighbours, the Z1 chip (eight cores, 269,568 pbits, over 50 MHz sampling, under 1 W), the Z1 thermo compute stick (two chips, over 500,000 pbits, M.2), the Z1 accelerator card (16 chips, over 4,000,000 pbits, PCIe) and the billion-pbit cluster Extropic plans to build in 2027, ending on the logo and early access in 2027. (2) A two-page US Letter datasheet: page one covers the Z1 chip's specifications (also 215,904 coupling parameters, a sparse graph where each pbit connects to 16 neighbours, chromatic Gibbs sampling of an Ising model, under 12 mm per side) and how it works; page two covers the stick, card and cluster, the software stack (THRML, Torx, Thermalizers and an early-access GPU simulator API) and early access. Use Extropic's real product photography where it shows these products. Both are unofficial concepts and must not invent specifications, benchmarks or efficiency comparisons.” #### Rainbrand sent back in 55 s Guidance Extropic brand context — pinned version de011d7a-258d-5212-8957-f62bb7681393 Imagery: “Use the supplied product and technical visuals rather than generic computing imagery” Products: “use it as a form-factor/product view, not as evidence for the task’s two-chip count” said of the Z1 stick photo. Claims: “Do not introduce efficiency comparisons or benchmarks” Also: Voice, palette, typography, logo, schematics for the cluster Files 10 ![Extropic’s stippled mark](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2Fbd0e5812-c39d-4e46-8429-171a3d19bf8e.webp&w=256&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Kessler Suisse Suisse Mono Font files, each with a specimen - ![Brief image: The Z1 chip](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2F8b35d0a6-b778-4d52-9ca9-a211dadfdb3c.webp&w=3840&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) - ![Brief image: The Z1 thermo compute stick](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2F84705c75-dbd4-4a9b-9b4d-f0fc9e231f99.webp&w=3840&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) - ![Brief image: The Z1 accelerator card](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2Fe4732249-6e90-4081-817a-e7967516bdd3.webp&w=3840&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) ## Step 3: Make the pieces Extropic builds chips that compute with randomness. Concepts by Claude; every figure comes from [extropic.ai](https://extropic.ai/). [![The circuit sampler: the heading Programmable randomness above a note that the samples are simulated, then four panels, each with controls, a gold trace of recent outputs and a histogram against the set distribution, and a closing row from one circuit to the Z1 chip.](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Foutputs%2Fsampler-desktop.webp&w=3840&q=100&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4)](https://www.rainbrand.com/examples/extropic/sampler/index.html) ### Circuit sampler An interactive page: set the odds of Extropic’s four random circuits and watch them sample. [Open page](https://www.rainbrand.com/examples/extropic/sampler/index.html) What it used from the Brief Logo: ![Extropic’s stippled mark](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2Fbd0e5812-c39d-4e46-8429-171a3d19bf8e.webp&w=96&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Type: Kessler Suisse Suisse Mono Colours: #1C0101 #FFFFFF #F5D54C #374151 Styled after: ![A gold state trace with its probability density](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2F014350fa-0f4e-4f06-8661-c54d7a79771b.webp&w=3840&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4)![Binary switching data on a sigmoid curve](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2Fb3f5e638-d80a-4714-9979-a7660c3d2ea0.webp&w=3840&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4)![Two-mode distributions in gold and orange](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2Fbd5d2422-b5fe-4ba8-9a00-68481d4b0357.webp&w=3840&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Voice: Plain definitions, no performance claims ### One pbit to one billion A 20-second film, from one circuit to the cluster Extropic plans for 2027. Music added after Review: “Half Mystery” by Kevin MacLeod, from [incompetech.com](https://incompetech.com/) under [CC BY 4.0](https://creativecommons.org/licenses/by/4.0/) [Open video](https://www.rainbrand.com/examples/extropic/outputs/z1-film.mp4) What it used from the Brief Logo: ![Extropic’s stippled mark](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2Fbd0e5812-c39d-4e46-8429-171a3d19bf8e.webp&w=96&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Type: Kessler Suisse Suisse Mono Colours: #1C0101 #FFFFFF #F5D54C #374151 Images: ![The Z1 chip](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2F8b35d0a6-b778-4d52-9ca9-a211dadfdb3c.webp&w=3840&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4)![The Z1 thermo compute stick](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2F84705c75-dbd4-4a9b-9b4d-f0fc9e231f99.webp&w=3840&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4)![The Z1 accelerator card](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2Fe4732249-6e90-4081-817a-e7967516bdd3.webp&w=3840&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Voice: Labels and figures, no comparisons [![Datasheet page 1: Z1 in large type beside a photo of the chip, four headline figures (269,568 pbits, 8 cores, over 50 MHz, under 1 W), a specification table and an explanation of how it works.](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Foutputs%2Fz1-datasheet-page-1.webp&w=3840&q=100&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4)](https://www.rainbrand.com/examples/extropic/outputs/z1-datasheet-page-1.webp)[![Datasheet page 2: Z1 systems, with cards for the compute stick, the accelerator card and the planned billion-pbit cluster, a table of the software stack and an early access 2027 note.](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Foutputs%2Fz1-datasheet-page-2.webp&w=3840&q=100&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4)](https://www.rainbrand.com/examples/extropic/outputs/z1-datasheet-page-2.webp) ### Z1 datasheet A two-page spec sheet for engineers: the Z1 chip, then the stick, card and cluster. [Open PDF](https://www.rainbrand.com/examples/extropic/outputs/z1-datasheet.pdf) What it used from the Brief Type: Kessler Suisse Suisse Mono Colours: #1C0101 #FFFFFF #F5D54C #374151 Images: ![The Z1 chip](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2F8b35d0a6-b778-4d52-9ca9-a211dadfdb3c.webp&w=3840&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4)![The Z1 thermo compute stick](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2F84705c75-dbd4-4a9b-9b4d-f0fc9e231f99.webp&w=3840&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4)![The Z1 accelerator card](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2Fe4732249-6e90-4081-817a-e7967516bdd3.webp&w=3840&q=75&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Voice: Specifications as published ## Step 4: Get it Reviewed Every asset was Reviewed. Review caught some problems, and Claude fixed them. [How Review works](https://docs.rainbrand.com/guides/request-review) Circuit sampler footer, logo check ### The footer mark was too small. Drawn at full size, it passed. ![The footer mark in round 1: a small white X whose stipple has blurred into soft beams.](https://www.rainbrand.com/examples/extropic/review/r1/sampler-desktop-2-footer.png?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) before: 54 px wide, the dots blur together Fail Review comment > “The footer emblem alters Extropic’s stippled diamond mark, using straight beam wings rather than the official flared stipple geometry.” Claude drew the mark at the supplied file’s native 256 pixels, after a first enlargement still failed, and asked for another Review. ![The footer mark in the final round: the white stippled diamond and its four dotted wings.](https://www.rainbrand.com/examples/extropic/review/r3/sampler-desktop-2-footer.png?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) after: 256 px, the file’s own size Pass Review comment > “Extropic's standalone stippled mark is clearly displayed in the footer in white against the dark ground, unaltered and legible.” Final Reviews: circuit sampler, film frame, Z1 datasheet ### All three passed all 4 checks. Circuit sampler Pass The top half of the page on a desktop. Logo, copy, typography and colour passed Pass What Review saw [Open full size](https://www.rainbrand.com/examples/extropic/review/r2/sampler-desktop-1-hires.webp) Logo Pass [Brand logo](https://www.rainbrand.com/examples/extropic/brand/wordmark.svg) ![Extropic’s wordmark, from the brand.](https://www.rainbrand.com/_next/image?url=%2Fexamples%2Fextropic%2Fbrand%2Fwordmark.svg&w=3840&q=100&dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) [Observed](https://www.rainbrand.com/examples/extropic/review/r2/sampler-desktop-1-hires.webp) ![The white wordmark at the sampler’s top left.](https://www.rainbrand.com/examples/extropic/review/r2/sampler-desktop-1-hires.webp?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Remove the backgrounds and colour ![The brand logo reduced to its black shape.](https://www.rainbrand.com/examples/extropic/logo-process/extropic-sampler/brand-shape.png?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4)![The mark extracted from the artwork, reduced to its black shape and lined up with the brand logo.](https://www.rainbrand.com/examples/extropic/logo-process/extropic-sampler/artwork-shape.png?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Line up and overlap [![The aligned logos overlaid: matching parts are black, brand-only parts are blue, and artwork-only parts are pink.](https://www.rainbrand.com/examples/extropic/logo-process/extropic-sampler/overlay.png?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4)](https://www.rainbrand.com/examples/extropic/logo-process/extropic-sampler/overlay.png) - Matching parts - Brand only - Observed only Review comment > “The official Extropic wordmark appears at the top left in clean white, unaltered and clearly legible against the dark background.” Copy Pass - ![Programmable randomness, the sampler’s heading.](https://www.rainbrand.com/examples/extropic/review/r2/sampler-desktop-1-hires.webp?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) - ![The note that the samples come from a simulation in the browser, not an Extropic chip.](https://www.rainbrand.com/examples/extropic/review/r2/sampler-desktop-1-hires.webp?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) - Wording As requested Matches - Voice Precise, explanatory Matches Review comment > “The text includes all requested sections with correct spelling. The explanatory, precise technical tone fits Extropic’s guidance to pair big-picture goals with concrete explanations.” Typography Pass - ![A weighted coin, a panel heading.](https://www.rainbrand.com/examples/extropic/review/r2/sampler-desktop-1-hires.webp?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Font Kessler Matches - ![The sampler’s opening paragraph.](https://www.rainbrand.com/examples/extropic/review/r2/sampler-desktop-1-hires.webp?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Font Suisse Matches - ![The four jump buttons: 01 pbit, 02 pdit, 03 pmode, 04 pmog.](https://www.rainbrand.com/examples/extropic/review/r2/sampler-desktop-1-hires.webp?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Font Suisse Mono Matches Review comment > “Display headings are set in Kessler with tight tracking, body copy uses Suisse, and buttons use Suisse Mono, matching the brand font roles.” Colour Pass - Background Observed ``` #1B0100 ``` Approved ``` #1C0101 ``` Matches - Gold controls Observed ``` #F5D54C ``` Approved ``` #F5D54C ``` Matches Review comment > “The dark background and gold accent fills match the brand palette; thin text strokes and border lines blend into the ground and were not measured.” Film frame Pass The Z1 chip, 9.2 seconds in. Logo, copy, typography and colour passed Pass What Review saw [Open full size](https://www.rainbrand.com/examples/extropic/review/r2/film-chip-hires.webp) Logo Pass ![The white wordmark at the frame’s top left.](https://www.rainbrand.com/examples/extropic/review/r2/film-chip-hires.webp?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Review comment > “The Extropic wordmark at the top left is clearly displayed, unaltered, and legible against the dark background.” Copy Pass - ![Over 50 MHz sampling, under 1 W, a gold label.](https://www.rainbrand.com/examples/extropic/review/r2/film-chip-hires.webp?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) - ![269,568 pbits on one chip, in eight cores.](https://www.rainbrand.com/examples/extropic/review/r2/film-chip-hires.webp?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) - Wording As requested Matches - Voice Precise, explanatory Matches Review comment > “Technical specifications and system hierarchy labels match the requested copy accurately and align with Extropic’s precise, explanatory brand voice.” Typography Pass - ![Z1, the scene’s heading.](https://www.rainbrand.com/examples/extropic/review/r2/film-chip-hires.webp?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Font Kessler Matches - ![The line under the heading.](https://www.rainbrand.com/examples/extropic/review/r2/film-chip-hires.webp?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Font Suisse Matches - ![Z1 chip, the current step in the progress row, in gold.](https://www.rainbrand.com/examples/extropic/review/r2/film-chip-hires.webp?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Font Suisse Mono Matches Review comment > “The display heading uses Kessler, the body text uses Suisse, and the labels and indicators use Suisse Mono, matching brand typography rules.” Colour Pass - Background Observed ``` #1B0100 ``` Approved ``` #1C0101 ``` Matches - Gold progress bar Observed ``` #F5D54E ``` Approved ``` #F5D54C ``` Matches - White text Observed ``` #FFFFFF ``` Approved ``` #FFFFFF ``` Matches Review comment > “The dark background, white text, and gold indicator match Extropic’s brand palette. The embedded chip photo colors were not measured.” Z1 datasheet Pass Page 1, the chip. Logo, copy, typography and colour passed Pass What Review saw [Open full size](https://www.rainbrand.com/examples/extropic/review/r2/datasheet-1-hires.webp) Logo Pass ![The white wordmark at the datasheet’s top left.](https://www.rainbrand.com/examples/extropic/review/r2/datasheet-1-hires.webp?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Review comment > “The Extropic wordmark at top left matches brand reference R2, rendered cleanly with strong contrast on dark background.” Copy Pass - ![The datasheet’s opening lines on what Z1 is and what a pbit does.](https://www.rainbrand.com/examples/extropic/review/r2/datasheet-1-hires.webp?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) - ![Four figures: 269,568 pbits, 8 cores, over 50 MHz sampling rate, under 1 W.](https://www.rainbrand.com/examples/extropic/review/r2/datasheet-1-hires.webp?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) - Wording As requested Matches - Voice Technical, explanatory Matches Review comment > “Accurately reflects requested text and Extropic's technical, explanatory voice defining pbits and hardware sampling, with correct spelling and grammar.” Typography Pass - ![What’s on the die, a section heading.](https://www.rainbrand.com/examples/extropic/review/r2/datasheet-1-hires.webp?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Font Kessler Matches - ![A paragraph from How it works.](https://www.rainbrand.com/examples/extropic/review/r2/datasheet-1-hires.webp?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Font Suisse Matches - ![Thermodynamic sampling unit, a label.](https://www.rainbrand.com/examples/extropic/review/r2/datasheet-1-hires.webp?dpl=dpl_FsvLT6dzTECRJXye9UdtMH2L3SY4) Font Suisse Mono Matches Review comment > “Kessler display headings set in capitals, Suisse body copy, and Suisse Mono labels all match Extropic brand typography.” Colour Pass - Background Observed ``` #1C0101 ``` Approved ``` #1C0101 ``` Matches - Gold labels Observed ``` #F5D54C ``` Approved ``` #F5D54C ``` Matches - White text Observed ``` #FFFFFF ``` Approved ``` #FFFFFF ``` Matches - Rules Observed ``` #374151 ``` Approved ``` #374151 ``` Matches Review saw 4 frames of the film; Claude checked playback itself. ## Try it yourself. Add Rainbrand to the agent you already use. [Read the docs](https://docs.rainbrand.com/mcp/getting-started) ### ChatGPT + Codex 1. Open the Rainbrand plugin and add it. [Open Rainbrand plugin](https://chatgpt.com/plugins/plugin_asdk_app_6ac6e5030ec88191a88001f6dc0628ca) 2. Connect your Rainbrand account when asked. It works in ChatGPT and in Codex. ### Claude 1. Open the Rainbrand connector in Claude and add it. [Open Rainbrand connector](https://claude.ai/customize/connectors?modal=add-custom-connector&connectorName=Rainbrand&connectorUrl=https%3A%2F%2Fmcp.rainbrand.com%2Fmcp) 2. Select Connect, then sign in to Rainbrand. You can also install the [Rainbrand Skill](https://docs.rainbrand.com/mcp/getting-started#standalone-rainbrand-skill) or the [plugin](https://github.com/rainbrandai/rainbrand-skills/releases/latest/download/rainbrand.claude-plugin.zip). ### Claude Code 1. Add Rainbrand's plugin marketplace in your terminal. ``` claude plugin marketplace add rainbrandai/rainbrand-skills ``` 2. Install the Rainbrand plugin, including its Skill and MCP connection. ``` claude plugin install rainbrand@rainbrand ``` 3. Start a new Claude Code session, then use /mcp to sign in to Rainbrand. You can also [connect with MCP](https://docs.rainbrand.com/mcp/getting-started#claude-code-installation-options) or install the [Rainbrand Skill](https://docs.rainbrand.com/mcp/getting-started#standalone-rainbrand-skill). ### Cursor 1. Add Rainbrand to ~/.cursor/mcp.json. ``` { "mcpServers": { "rainbrand": { "url": "https://mcp.rainbrand.com/mcp" } } } ``` 2. Sign in from the Cursor CLI. ``` agent mcp login rainbrand ``` You can also install the [Rainbrand Skill](https://docs.rainbrand.com/mcp/getting-started#standalone-rainbrand-skill) or the [plugin](https://github.com/rainbrandai/rainbrand-skills/releases/latest/download/rainbrand.cursor-plugin.zip). ### API 1. Create an API key in your account settings, then list your brands. ``` curl https://www.rainbrand.com/api/v1/brands -H "x-api-key: $RAINBRAND_API_KEY" ``` Integrating Rainbrand into your app? [Read the API docs](https://docs.rainbrand.com/api). The brand layer for agents. Rainbrand builds and maintains shared brand context for your agents and products. [Get started](https://www.rainbrand.com/auth/sign-in) [Read the docs](https://docs.rainbrand.com/)