Marvel exposes a public GraphQL API covering projects, screens, hotspots, and team data. Access is self-serve via OAuth 2.0, personal tokens, or a quick dev-token endpoint. Docs are thin and dated, with no first-party SDKs and no webhooks, so apps poll and hand-write queries.
Marvel scores A on the API Report Card. Marvel exposes a public GraphQL API covering projects, screens, hotspots, and team data. Access is self-serve via OAuth 2.0, personal tokens, or a quick dev-token endpoint. Docs are thin and dated, with no first-party SDKs and no webhooks, so apps poll and hand-write queries.
Marvel has a workable official integration path. Most engineering teams can build against it directly. Open API: self-serve, documented, with SDKs
Marvel is a cloud-based design platform for rapid wireframing, prototyping, user testing, and developer handoff.
Horizontal cross-industry design tooling. Marvel sells to individual designers, in-house product/design teams, digital agencies, consultancies, and education customers. Import static screens (PNG/JPG/PSD/Sketch) and wire hotspots into interactive prototypes. Build wireframes and low-fidelity flows directly in Marvel's web editor.
Low-to-moderate and declining. Marvel was historically a recognized name in the prototyping category alongside InVision, Axure, Justinmind, and Proto.io, with brand-name customers including BuzzFeed, BlaBlaCar, and Stripe.
Founded: 2013 (London, UK). Founders: Brendan Moore, Murat Mutlu, Jonathan Siao. HQ: London, United Kingdom. Funding: ~$11M raised across 5 rounds; £4M Series A (Dec 2016) led by BGF Ventures.
Founded in 2013 in London by Brendan Moore, Murat Mutlu, and Jonathan Siao.
API documentation is sparse and appears largely unmaintained, limited examples beyond Getting Started/Authentication pages. Rate limits are not publicly published, making capacity planning for bulk syncs unpredictable. Full sourced list under Sources below.
Common alternatives include Figma, Adobe XD, InVision, Sketch, Axure RP, Justinmind. Graded alternatives appear under "More from the report card" below.
Grades measure one thing: can a customer's engineering team get their own data out programmatically? We check six things (whether a real API exists, how access is gated, data coverage, auth quality, docs and developer experience, and stability) and roll them into a letter grade. Grades get re-verified, and they only move on evidence.