DePlan

DePlan was a Solana-based protocol that aimed to replace flat-rate subscription billing with a usage-proportional model — letting subscribers receive refunds for idle time and sell tokenized access hours on an open marketplace. The main website (deplan.xyz) returns a 404 error as of 2025, the project's Twitter account (@DePlan_xyz) shows no recent posts, and the native DPLN token trades at a fraction of a cent with negligible daily volume, indicating the project is no longer active.

What DePlan Was

The global subscription economy is estimated to be worth trillions of dollars annually, yet most subscription services charge a flat monthly fee regardless of whether a user consumes the product at all. DePlan targeted this inefficiency on two fronts: giving paying subscribers a way to recoup money for time they did not use, and enabling prospective users to purchase short-term access without committing to a full subscription.

The project launched in late 2023 and described itself as building a "subscription time marketplace" on Solana.

How It Worked

DePlan's core mechanism relied on two interlocking ideas: tokenized access and usage-intensity scoring.

Tokenized subscription hours. The platform tracked users' screen time across integrated applications to identify idle subscription hours. Each hour of confirmed access to a given app could be minted as a token on Solana — one token representing one hour. Token holders could list those hours on the DePlan marketplace, where buyers could purchase pay-as-you-go access. The base price per hour was derived by dividing the monthly subscription cost by average monthly usage hours, with adjustments from supply and demand on the open market.

Usage-intensity billing. For developers integrating DePlan's checkout module, the platform offered a "Pay based on usage" payment method. Users deposited the full monthly subscription amount upfront. Throughout the billing period the platform tracked an "Intensity of Usage" metric covering variables such as quantity of downloads, uploads, exports, frequency of use, and amount of content consumed. At month-end, the heaviest user paid full price, non-users paid nothing, and everyone else fell proportionally in between. Unused funds were returned automatically.

From the developer side, integration pointed to DePlan's checkout SDK, which surfaced the usage-based option alongside standard payment methods. Developers also received a product wallet from which they could withdraw earnings. The documentation described a testing workflow to validate the payment integration before going live.

Key Features

• Subscription marketplace: buy and sell tokenized access hours for third-party apps without committing to a monthly subscription
• Usage-proportional refunds: month-end settlement automatically returned the unused fraction of a subscriber's deposit
• Intensity of Usage scoring: a relative metric that calculated each user's consumption share within a billing cohort
• Developer SDK: a checkout integration point allowing SaaS products to offer usage-based pricing as a payment option
• User dashboards: visibility into usage intensity scores and projected savings or refunds

Token

DePlan's native token is DPLN, deployed on Solana (contract address: CYCi5FTiAj8sQaCLfmddjgy7J5SXkyGwfFT9Lub8Jo3J). At peak in late 2024, DPLN traded near $0.20 with a fully diluted valuation around $20 million. By mid-2026, the token was trading at approximately $0.0009 with a 24-hour trading volume of roughly $63 — consistent with an abandoned project.

Team and Background

The project was co-founded by Serj Korj (Sergey Korzhenevich), who publicly articulated DePlan's vision around tokenizing real-world subscription assets. As of 2026, Korzhenevich's LinkedIn profile lists DePlan under past experience. No other founding team members have been consistently identified in public sources.

DePlan earned recognition early in its development through hackathon performance: fifth place in the Consumer Apps Track at a Solana Foundation hackathon, and the Top Demo prize (worth $5,000 USDC plus conference tickets) at Hacker House Dubai.

DePlan 2.0 and Decline

At Solana Breakpoint in Singapore in September 2024, the team announced DePlan 2.0, which reportedly pivoted the product toward subscription aggregation. No substantive product release followed the announcement in public records. The main website went offline sometime after late 2024, social media activity ceased, and no active integrations or user communities are identifiable as of mid-2026.

The documentation subdomain (docs.deplan.xyz) remained accessible at the time of this writing and still describes the protocol in present tense, but there is no evidence of ongoing development, active integrations, or a functioning user base.

Ecosystem Fit

DePlan was positioned within the Solana ecosystem as a consumer-facing application layer rather than a DeFi or staking protocol. Its focus on real-world software subscriptions — traditional SaaS products — placed it closer to consumer Web3 and real-world asset tokenization narratives. The project drew comparisons to usage-based billing startups in the Web2 world, with the blockchain layer providing transparent settlement and the tokenized marketplace as the differentiating mechanism.

No security audits of DePlan's smart contracts have been identified in public sources.