Summary: Onboard is a non-custodial peer-to-peer exchange protocol and integration platform for moving between fiat and crypto. Its official docs frame the system as an escrow-based protocol plus Onboard Exchange and Onboard Connect, with low-code and native APIs for wallets and dapps that want local payment channels, best-offer routing, and dispute-managed on/off-ramp flows.
What it does:
Runs a non-custodial P2P protocol on EVM chains using a Smart Contract Escrow Account (SCEA) that locks assets until counterparties or a mediator approve release
Offers Onboard Exchange as a ready-made marketplace for crypto-fiat swaps and Onboard Connect as the integration layer for third-party wallets and apps
Supports low-code redirect integrations and native API integrations for embedded onramp/offramp user flows
Publishes payment-channel and currency support for local rails such as NGN, KES, GHS, MUR, UGX, bank transfer, and M-PESA-style methods
Documents a dispute-mediation model, no-KYC and KYC trade modes, and contract architecture pages rather than relying on homepage marketing alone
Key claims:
The docs describe Onboard Protocol as a “non-custodial peer-to-peer (P2P) protocol” for secure exchange of assets without centralized custody
The protocol overview says deployment targets EVM-compatible chains such as Ethereum, Base, BNB Smart Chain, and Polygon
Onboard Connect claims over 100 local payment methods, low-code or native integration options, and seamless escrow powered by the protocol
The exchange docs claim users can get onchain in less than 3 minutes and can support micro-transactions as small as $0.5 at near-zero fees
The trade-flow docs make the real operating model concrete: counterparties are matched, crypto is locked in escrow, fiat is sent over local rails, then release is mediated by confirmations or disputes
The docs expose llms.txt, OpenAPI specs, technical-model pages, and contract lists, which makes this a strong docs-first primary-source target even without a canonical whitepaper
Whitepaper: No classic standalone whitepaper was found in the official materials reviewed during this pass. The primary-source surface is the docs portal, llms.txt index, contract/architecture pages, exchange/integration docs, and public GitHub links surfaced from the docs; see ../whitepapers/onboard-primary-sources-2026-04-26.md.