coming soon / contextual advertising for open social

Welkin

Coming soon: reach the Atmosphere without buying another silo.

Welkin is an early signal for contextual advertising across open social apps, feeds, creators, and communities. Its context engine learns from public content, aggregate behavior patterns, and surface context, deciding where ads best belong without accessing private user data or personal tracking dossiers.

40M+ registered accounts
One buy many surfaces
Contextual audiences
Transparent outcomes
Cross-surface reach Not trapped in silos Context engine Brand suitability No personal data tracking Creator-native media Privacy-respectful measurement Transparent supply Open social scale Cross-surface reach Not trapped in silos Context engine Brand suitability No personal data tracking Creator-native media Privacy-respectful measurement Transparent supply Open social scale
Atmosphere / 01

Open social context, built on AT Protocol.

The Atmosphere is the open social network taking shape around AT Protocol. Accounts, profiles, posts, media, follows, likes, and feeds can move through many apps, agents, and media interfaces instead of being trapped inside one platform's ad stack.

That changes what media can become. AT Protocol gives content a standard shape that can move across new interfaces, from social apps to agents. Welkin uses that shared public context to help brands reach compatible apps, feeds, and communities without private identity graphs or opaque platform lock-in.

Portable identity Open social graph Context-rich records Many clients
Buyers / 02

Welkin's Atmosphere Context Engine (ACE) turns one media plan into Atmosphere-wide reach.

Traditional social ads make brands rebuy the same audience inside every platform. ACE is the AI layer that makes the Atmosphere buyable as one open media channel. Its machine-learning models build semantic embeddings from public posts, creator signals, app surface metadata, aggregate engagement patterns, and brand-suitability constraints. Those signals feed a live context model that scores placement fit by relevance, intent, safety, format, and expected attention. One buyer brief can be translated into native placements across many interfaces without carrying personal data or a surveillance profile with it.

01 / Fragmented reach Audiences move across apps, feeds, creators, and communities.
02 / One brief Audience context, brand rules, and creative intent become portable campaign logic.
03 / ACE learning layer ACE learns from general behavior patterns and public context, then chooses placements without private tracking files.
04 / Clear outcome Buyers see reach, attention, spend path, and surface provenance.
Contrast / 03

The old ad network playbook breaks in open social.

Buyers still need reach, controls, and proof. They do not need another black box that traps audience files, hides supply paths, and follows people across private surfaces. Welkin keeps the useful parts of media buying and adds an intelligent context layer built for open, context-native media.

Old networks Walled-garden reach
Welkin Cross-surface Atmosphere reach
Old networks Personal tracking graphs
Welkin ACE context matching
Old networks Opaque supply paths
Welkin Visible surfaces and provenance
Old networks Platform lock-in
Welkin Portable campaign rules
Surfaces / 04

Open social is already a media channel.

More than 40 million registered accounts now sit on the largest Atmosphere graph, with new app views, feeds, events, video, and community surfaces forming around the same protocol. As AI lowers the cost of building new interfaces, that surface area compounds. Welkin turns the fragmentation into a buyer advantage while keeping relevance tied to public context and aggregate behavior, not personal tracking. One buyer brief can adapt into video, article, audio, events, live streams, reviews, check-ins, and story formats without rebuilding the campaign for every surface.

Open-network expansion

One global network. Infinite touch points.

The AT Protocol gives builders a shared standard for social content: accounts, posts, feeds, media, and reputation that can move across apps. AI lowers the cost of designing and shipping new media interfaces, so social apps, topic feeds, reader apps, community spaces, local guides, commerce experiences, voice rooms, agents, and interfaces we have not named yet can all point into one open network. ACE reads public context and aggregate behavior across those surfaces, then chooses relevant, format-native creative for each interface without needing private user data.

40M+ registered accounts anchoring the current open-social graph.
1 brief audience, category, suitability, and ACE placement rules that travel across surfaces without personal identity files.
0 silos portable context instead of another walled-garden audience file.
01

Untrap your reach

Run one campaign logic across compatible Atmosphere surfaces instead of rebuilding reach inside each platform.

02

Let context do the targeting

Use AI to match brand messages to public conversations, creator media, and community signals people already care about, without following individuals around the web.

03

Make suitability visible

Give buyers category controls, exclusions, and surface provenance before spend hits the network.

04

Prove where value landed

Report impressions, attention, and settlement back to the apps, feeds, and creators that delivered outcomes.

Operating layer / 05

Welkin handles the messy part.

Buyers should see a clean plan, clear controls, and useful reporting. Underneath, ACE coordinates public context, general behavior patterns, suitability checks, impression validation, and privacy-preserving payouts across independent Atmosphere surfaces.

01 Media plan

Brand objective, creative, audience context, suitability rules, and measurement goals enter ACE without a personal data file.

02 Context learning

Public posts, feeds, creator signals, app surfaces, and aggregate momentum teach ACE what is relevant, suitable, and gaining energy.

03 Media placement

Creative is matched to the surface, format, and moment, then placed natively across apps, feeds, and creator media.

04 Delivery report

Native placements run across apps, then verified attention, spend path, and settlement signals flow back.

coming soon for the open social web

Register interest in Welkin.

Welkin is not open yet. If you are curious about ACE-powered media buying, brand reach, or privacy-respectful advertising in the Atmosphere, leave a note and we will follow up as the network takes shape.

Register interest