A neutral protocol layer for vehicle identity, battery passports, charging payments and voice intents — built on Ethereum and ENS. No OEM owns it. No platform can de-list it. Integrate once. Settle on-chain.
Each namespace pre-registered against squatting. Claimed on-chain via 10 ETH governance fee — gated to verifiable corporate signers during pilot.
e-car.eth sits below the OEM application layer as shared infrastructure — like Stripe is to payments and ENS is to names. OEMs integrate once via REST or SDK, keep full UX control, and the protocol handles identity, payments, data provenance and cross-brand interoperability.
No single manufacturer owns it. No platform can de-list a competitor's vehicles. No intermediary takes more than the transparent on-chain fee.
Production-grade primitives covering the full EV lifecycle — identity, battery, payments, voice, fleet, V2G, carbon, OTA, insurance and more. All on-chain. All composable.
ERC-721 NFT per vehicle — soulbound or transferable, OEM's choice. Pre-authorize 100K vehicles in one Merkle batch. ENS name resolves to current holder automatically.
Immutable state-of-health records anchored via Merkle roots. EU Battery Regulation 2023/1542 compliant. Cycle count, degradation, oracle attestation — verifiable forever.
Non-custodial escrow per session. Funds locked at start, released on completion. ETH · USDC · any ERC-20. 0.3% protocol fee. No chargebacks, no card rails, no settlement lag.
Drop-in plugin for in-car middleware. Natural language → payment intent → on-chain settlement. Adapters for Tesla Grok, Alexa Auto, Google Assistant, Siri CarPlay.
Every vehicle gets a smart account that autonomously pays for charging, tolls, parking. Owner-set spending limits enforced at the contract level, not the backend.
Credits minted per kWh charged, weighted by grid carbon intensity. Tradeable on any marketplace. Retired with immutable proof for EU Taxonomy and SEC climate disclosure.
Commercial fleets register under fleet.e-car.eth. Geofences, aggregated billing across charging · tolls · parking · V2G — one API call.
OEMs claim their subdomain via a 10 ETH one-time fee. Deploys a dedicated BrandRegistry + 2-of-2 MultiSig granting full namespace control for vehicles, stations, subnames.
Bidirectional energy settlement between EVs and grid operators. Vehicles earn USDC for exporting stored energy. Automatic, per-kWh, with signed oracle proof of delivery.
ECDSA + Merkle verification of firmware before the ECU accepts the update. Required for ISO 21434 / UN R155 automotive cybersecurity compliance. No malicious injection vector.
On-chain risk pooling for EV-specific coverage. Premiums calculated from verified battery health and mileage. Claims triggered by oracle-attested events — no opaque actuarial.
Owners monetize anonymized telematics — battery cycles, driving patterns, routes. Sold as privacy-preserving Merkle proofs, never raw telemetry. USDC micropayments.
From global OEMs to charging networks to fleet operators — neutral infrastructure anyone can build on. Six representative integrations below.
Tesla claims their namespace, submits 1M VINs in a single API call — Merkle root committed on-chain in one transaction. Choose soulbound (permanent owner identity) or transferable (resale, leasing). Mint batch to OEM wallet, distribute at point of sale. ENS resolves to the current holder automatically. Voice SDK in FSD — "charge my car" executes on-chain.
A charging operator registers stations on-chain. EVs from any OEM with the protocol initiate sessions via API. Payment escrow locks funds, auto-releases on session close. Operator earns their rate minus 0.3% — no credit card rails, no chargebacks, no invoice cycles.
A logistics company's 500-EV fleet automatically mints carbon credits per kWh charged. Each credit is a verifiable ERC-1155 token with on-chain provenance. ESG team retires credits quarterly with immutable proof — ready for EU Taxonomy and SEC climate disclosure.
Fleet registers under fleet.e-car.eth. Each vehicle has geofence rules stored on-chain. Aggregated payment reports across all vehicles and all stations in a single API call. Real-time WebSocket alerts on vehicle status changes.
Grid operator signs V2G agreements with vehicle owners on-chain. During peak demand, participating EVs export energy and earn USDC automatically via V2GSettlement. Oracle attests kWh delivered. No invoicing — continuous micropayments per event.
An EV insurance startup queries battery health history via API, reads on-chain mileage, and prices premiums algorithmically. The InsuranceVault handles the risk pool. No need to build identity or data infrastructure — ship in weeks, not years.
The flagship OEM workflow. Submit a full production batch — the server builds a Merkle tree and returns the root plus per-VIN proofs. Commit the root on-chain in one transaction. Each vehicle claims its NFT individually with its proof — at point-of-sale, lease handoff, or fleet deployment.
Verified end-to-end against the live API: SQLite-backed batch store survives restarts, per-proof lookup stays under 200ms even at full 100K capacity. Ready for OEM pilot today.
Deployed on Ethereum Sepolia (Chain ID 11155111). Source code verified on Etherscan. Auditable by anyone, today. Mainnet follows the first OEM pilot.
| Contract | Address | Standard | Status |
|---|---|---|---|
| VehicleIdentity Soulbound or transferable NFT per vehicle | 0x54e01a…eB41d1 | ERC-721 · ERC-5192 | VERIFIED |
| BatteryPassport EU 2023/1542 compliant battery health | 0x093116…4E15 | AccessControl · Merkle | VERIFIED |
| UniversalPaymentEscrow Escrow for charging · tolls · parking | 0x7c9aDE…6c9f | ReentrancyGuard · ERC-20 | VERIFIED |
| AgentWallet ERC-4337 smart account per vehicle | 0x0a235B…6f7f | ERC-4337 | VERIFIED |
| MerkleBatchOracle Anchors off-chain telemetry on-chain | 0x8d0324…1982 | AccessControl | VERIFIED |
| NamespaceGovernorFactory Brand namespace claims via 10 ETH | 0x9544eA…a89C | Factory | VERIFIED |
| MultiSigFactory 2-of-2 governance multisig per OEM | 0x5d10C0…00a9 | 2-of-2 MultiSig | VERIFIED |
| ChargingStationRegistry Stations register pricing on-chain | 0xfB91A8…46E5 | Ownable | VERIFIED |
| ChargingPaymentRouter Routes session escrow + 70/30 split | 0x3aeC1c…2462 | Payment Router | VERIFIED |
| VoiceRampRouter Fiat on-ramp from in-car voice intent | 0x3a1e3C…3080 | Fiat On-Ramp | VERIFIED |
Drop @e-car-eth/voice-sdk into your in-car middleware. Natural language is classified into payment intents and executed by the vehicle's agent wallet — zero friction, no card swipe, no app open.
Currently live on Sepolia testnet. Mainnet launches after OEM pilot — OEM and Enterprise tiers reserve a priority seat at the front of the line.
Separate from API subscription. Governed by ECarDAO once active — token holders vote on upgrades, fee changes, grant allocations.
Developers can mint a Sepolia key in 30 seconds with a wallet signature. OEMs and enterprises ready for a pilot apply for design-partner status — paid tier, dedicated support, priority mainnet seat.
For engineers, fleet builders, integrators, and ESG/insurance startups exploring the protocol. Available now — no waitlist.
Reviewed within 1 business day. For auto manufacturers, charging networks, fleet operators, and grid utilities ready to deploy at scale.