Ithaca
Ithaca builds open-source crypto infrastructure — primarily the Porto account-abstraction SDK and the Odyssey Layer 2 testnet — serving application developers building wallet, payments, and DeFi experiences on Ethereum and major EVM chains.
- Company typePrivate
- Founded2024
- HeadquartersSan Francisco, United States
- Headcount11–50
- GTM typeB2B
- OfferingSoftware
What Ithaca does
Ithaca, legally Paradigm Reth Systems Inc., is a crypto infrastructure company founded in October 2024 in San Francisco by the engineers behind Foundry, Reth, Wagmi, and Viem. The company has raised $20 million from Paradigm, with Paradigm's former CTO Georgios Konstantopoulos installed as CEO. Ithaca operates two core product lines. Odyssey, launched October 2024, is an open-source Layer 2 testnet built on the Reth SDK and OP Stack, designed to validate frontier EIPs (EIP-7702, EOF, EIP-2537, RIP-7212) and target 33 megagas/second throughput. Porto, introduced December 2024 and reaching production-ready, fully open-source status in October 2025, is a TypeScript SDK for account abstraction that enables passwordless authentication via Passkeys, gas sponsorship in stablecoins, batched calls, scoped sessions, cross-chain teleportation without bridges, and KYC-less Apple Pay fiat on-ramps; it is live on Ethereum, OP Mainnet, Base, Arbitrum One, BSC, Celo, and Polygon. Supporting infrastructure includes the Ithaca Relay, a Rust-based high-performance transaction backend co-designed with Porto.
The business model is predominantly open-source and developer-led: the SDK, Relay, and smart contracts are free, with potential monetization through paymaster/bundler usage fees, fiat on-ramp revenue share, and enterprise support/integration work. Distribution runs through npm, GitHub, Conduit for chain deployment, Wagmi/Viem/Privy integrations, and direct enterprise sales via booked calls. Named integrations include Uniswap, Relay.Link, Bungee, Eco, and Privy; no revenue or ARR is disclosed. In October 2025 the Ithaca team announced it is joining Tempo to continue the crypto-frontier mission, and in June 2026 Ithaca announced it will sunset Porto with a July 24, 2026 deadline for users to migrate funds, effectively ending the standalone product while the team and roadmap continue inside Tempo.
Ithaca firmographics
Firmographics- Name
- Ithaca
- Legal name
- Paradigm Reth Systems Inc.
- Website
- https://ithaca.xyz
- Company type
- Private
- Founded year
- 2024
- Operating status
- Operating
- Headcount range
- 11–50 employees
- Short description
- Ithaca builds open-source crypto infrastructure — primarily the Porto account-abstraction SDK and the Odyssey Layer 2 testnet — serving application developers building wallet, payments, and DeFi experiences on Ethereum and major EVM chains.
- Ownership category
- akta.pro rank
Ithaca industry classification
Industry- Product category
- Crypto Infrastructure Software
- NAICS
- Software Publishers (513210), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518)
- SIC
- Services-Prepackaged Software (7372), Services-Computer Programming Services (7371)
- akta.pro primary industry
- Developer APIs & Node Access (RPC providers, node infrastructure APIs) (FSAPABAC)
- akta.pro secondary industries
- Cross-Chain Developer Tooling (messaging SDKs, relayers, interoperability APIs) (FSAPABAF), Smart Contract Execution Environments (EVM/WASM, runtimes, precompiles) (FSAPABAA)
Keywords
Where Ithaca is headquartered
LocationHeadquarters
- HQ city
- San Francisco
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
Ithaca business model
Business model- GTM type
- B2B
- Offering type
- Software
- Cost components
- Personnel, Technology or R&D, Infrastructure, Marketing or Sales, Operations
Revenue model
- SDK Licensing/Integration: Porto SDK is open source and free to use. Revenue potential from premium support, custom integrations, and enterprise features. Developer-first motion suggests land-and-expand model.
- Infrastructure Services: Relay infrastructure for high-performance transaction execution. Bento box gas sponsorship model where applications fund once with USDC/USDT and relay handles gas across chains.
- Fiat On-ramp Partnership: KYC-less Apple Pay-powered fiat on-ramp up to $500-1000 per user depending on jurisdiction, with revenue share from on-ramp providers.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Freemium | Pay-as-you-go | Open Source SDK - Free tier for developers |
| Transaction based/ take rate | Pay-as-you-go | Fiat On-ramp - User pays per transaction |
Go-to-market motion3 records
Distribution channels6 records
Marketing channels6 records
Ithaca product offering
Product offeringCore offering
Ithaca builds developer-first crypto infrastructure software, anchored by Porto (a TypeScript SDK for account abstraction enabling passkey-based authentication, fee sponsorship in stablecoins, batching, subscriptions, and cross-chain interoperability) and Odyssey (an open-source Layer 2 testnet built with Reth SDK and OP Stack for testing bleeding-edge EIPs). The Ithaca Relay, a high-performance Rust backend, powers Porto's transaction execution.
Product overview
Ithaca is a crypto infrastructure company offering two core products: Odyssey, an open-source Layer 2 blockchain testnet built with Reth SDK and OP Stack, and Porto, a developer-first TypeScript SDK for account abstraction. Porto provides passwordless authentication via passkeys, crypto payments, gas sponsorship in stablecoins, and cross-chain interoperability, while Odyssey serves as the testbed for bleeding-edge EVM features. The Ithaca Relay (Rust backend) powers Porto's high-performance transaction execution. Both products are designed to accelerate crypto adoption by improving developer experience and end-user onboarding.
Differentiator
Problem solved
Functional benefit
Products and services
- Porto A developer-first TypeScript SDK for next-generation account abstraction, enabling passwordless authentication via Passkeys, crypto payments, account recovery, gas sponsorship in stablecoins, batching, and cross-chain interoperability. Designed for application developers building crypto-powered apps that require seamless onboarding without browser extensions or seed phrases.
- Odyssey An open-source Layer 2 blockchain testnet built with Reth SDK and OP Stack, targeting 33 megagas per second throughput with 1-second block times and 200 megagas gas limit. Implements frontier EIPs (EIP-7702, EOF, EIP-2537, RIP-7212) before mainnet deployment and enables frictionless onboarding without wallet installation or gas tokens.
- Ithaca Relay A high-performance backend in Rust co-designed with the Porto SDK that handles transaction execution complexity and reliably lands high-throughput transaction loads within the next block. Enables applications to scale their userbase without managing gas sponsorship infrastructure themselves.
Quantifiable outcome
- Porto outperforms ERC4337 alternatives by up to 71% in performance benchmarks
- +4 more outcomes
Companies that use Ithaca
Customer profileNamed customers5 records
Segments4 records
Ideal customer profiles3 records
Ithaca technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- Yes
- API docs
- API detail
Core technology
AI maturity
App detail
Integration9 records
AI capability1 record
Feature7 records
Ithaca partnerships and signals
Strategic signalPartnerships
Ten partnerships are on record, tiered core and flagship.
- ConduitcoreInfrastructure platform used to deploy and manage Odyssey Layer 2. Odyssey was deployed on Conduit at app.conduit.xyz/published/view/odyssey. Conduit provides RPC, block explorer integration, and deployment infrastructure.
- OptimismcoreCollaborating on OP Stack development and accelerating OP Stack's roadmap toward Stage 2 decentralization. Ithaca contributes to making every rollup a ZK rollup.
- FlashbotscoreCollaboration on MEV market structure improvements and emerging technologies like TEEs. Flashbots works on transaction ordering and MEV extraction optimization.
- SuccinctcorePartnership on SP1 and zero-knowledge proof infrastructure for future ZK rollup capabilities. Collaborating on accelerating ZK technology adoption.
- BasecoreCollaboration with Base team on L2 infrastructure and user experience improvements. Porto live on Base Sepolia and Base Mainnet.
- UniswapcorePorto integrated with Uniswap for decentralized exchange experience with embedded wallet. Collaboration on improving DeFi UX.
- TempoflagshipIthaca team joined Tempo to continue the mission of accelerating crypto frontier. Porto code will remain open source; Ithaca contributing to Tempo's roadmap for upgrading world's financial infrastructure. Partnership announced October 2025.
- PrivycoreWallet-as-a-service provider integrated with Porto. Users can upgrade EOAs to Porto accounts using EIP-7702 while Privy handles key management, without forcing passkeys.
- Riley Holterhus, Kaden Zipfel, MiloTruckcoreIndependent security researchers who conducted 2-week security audit engagement on Porto. Identified and helped fix security findings. Part of 5 ETH bug bounty program.
- Wagmi / Viem (Wevm)coreWevm creators tmm and jxom joined Ithaca while maintaining Wagmi and Viem independence. Porto exports Wagmi VanillaJS Actions and React Hooks. No changes to existing Wevm open source projects.
Scale indicators6 records
Recent moves8 records
Expansion highlights6 records
Ithaca competitors and assessment
Company assessmentMarket position
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
Ithaca social profiles
Digital presenceIthaca financial estimates
Financial estimateRevenue estimate
Valuation estimate
Ithaca leadership team
Management profileNumber of profiles
Profiles1 record
Ithaca funding detail
Funding detailFunding overview
Funding rounds1 record
Investors1 record
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Ithaca M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Ithaca
What does Ithaca do?
Ithaca builds developer-first crypto infrastructure software, anchored by Porto (a TypeScript SDK for account abstraction enabling passkey-based authentication, fee sponsorship in stablecoins, batching, subscriptions, and cross-chain interoperability) and Odyssey (an open-source Layer 2 testnet built with Reth SDK and OP Stack for testing bleeding-edge EIPs). The Ithaca Relay, a high-performance Rust backend, powers Porto's transaction execution.
Is Ithaca a public or private company?
Ithaca is a private company. It is classified as venture growth investor backed and is currently operating.
When was Ithaca founded?
Ithaca was founded in 2024. It employs 11 to 50 people.
Where is Ithaca based?
Ithaca is headquartered in San Francisco, United States, in the North America region.
How does Ithaca make money?
Three revenue lines are on record. SDK Licensing/Integration is the primary driver. The others are infrastructure Services and fiat On-ramp Partnership.
Does Ithaca have an API?
Yes. Porto SDK provides a developer-first TypeScript library for account abstraction, enabling authentication via passkeys, crypto payments, and account recovery. The SDK includes EIP-1193 compatible provider, experimental JSON-RPC methods (experimental_connect, experimental_createAccount, experimental_disconnect, experimental_grantSession, experimental_sessions), and full compatibility with Wagmi and Viem. It is available as an npm package and supports cross-chain interoperability. Developer documentation is at porto.sh/sdk.
What industry is Ithaca in?
Ithaca's product category is Crypto Infrastructure Software. Its primary akta.pro industry code is FSAPABAC, Developer APIs & Node Access (RPC providers, node infrastructure APIs), with a secondary code of FSAPABAF, Cross-Chain Developer Tooling (messaging SDKs, relayers, interoperability APIs). Its NAICS code is 513210 and its SIC code is 7372.