#cross-chain

Live on-chain data for Sifchain (chain id sifchain-1) — the Cosmos-SDK Layer-1 omni-chain decentralised exchange, whose native token is ROWAN — served directly from public LCD/REST nodes with multi-node failover. The status endpoint returns the latest block height and time, chain id, the staking bond denom and the current minting inflation rate. The validators endpoint lists the active bonded validator set ranked by stake, each with its moniker, operator address, self-plus-delegated ROWAN, commission rate and jailed flag. The supply endpoint returns the total ROWAN supply, the amount bonded in staking and the resulting bonded ratio. The governance endpoint returns the most recent on-chain proposals with their id, title, status and voting window. ROWAN uses an 18-decimal base denomination which is converted to whole ROWAN with exact big-integer scaling, and every figure is read live from the chain — nothing bundled or modelled — behind a short server-side cache with keep-warm so the feed stays fast and fresh. Ideal for staking dashboards, validator and delegator tooling, explorers, governance trackers and portfolio or analytics apps across the Cosmos and cross-chain DEX ecosystem. Live keyless upstream. 5 endpoints.

api.oanor.com/sifchain-api

Live data from MAYAChain, the THORChain-derived cross-chain decentralized exchange (native asset CACAO) that swaps native BTC, ETH, ARB, ADA and more without wrapping or KYC. Read every liquidity pool (asset, USD price, asset & CACAO depth, 24h volume, pool APY, savers APR, status); the full detail of a single pool by asset; the global DEX stats (CACAO price, swap count and volume, active users, liquidity added); the network and node stats (active node count, bonding & liquidity APY, total reserve); and the most recent on-chain actions (swaps, adds, withdraws). The Maya / cross-chain-DEX / liquidity layer for DeFi dashboards, swap routers and yield trackers.

api.oanor.com/maya-api

Where dollar stablecoin liquidity actually lives, read live and keyless from each blockchain. USDC and USDT are issued natively on many chains, and the split between them is one of the most-watched signals in the layer-2 wars: Ethereum mainnet still holds the bulk, but Base, Arbitrum and the other rollups have been pulling stablecoin supply across as activity migrates. This API reads the native USDC and USDT supply directly from the token contract on each chain — Ethereum, Base, Arbitrum, Optimism, Polygon and Avalanche — not a single chain and not an aggregator, so you see the real on-chain distribution. The stablecoin endpoint takes a symbol (USDC or USDT) and returns its supply on every tracked chain, ranked, each with its share of that stablecoin and the Ethereum-versus-rollup split. The chains endpoint ranks the chains by their total native stablecoin liquidity (USDC and USDT together) — which chain hosts the most dollars. The summary endpoint is the top-down view: total USDC, total USDT, the combined total, the USDT-to-USDC ratio, and Ethereum's dominance versus the share that has moved to the rollups. Because USDC and USDT are dollar-pegged and read at the token's own on-chain decimals (read live from each contract, never assumed), the supply equals the dollars of stablecoin on that chain; only natively-issued supply is counted (bridged and peg tokens are excluded). This is the stablecoin chain-distribution cut — distinct from the single-chain token feeds, the generic stablecoin-supply aggregators and the price feeds: it is specifically the cross-chain liquidity map. Amounts are in US dollars. No key, nothing stored beyond a short cache.

api.oanor.com/stablecoinchains-api

Cross-chain messaging and bridging activity across the Wormhole network — one of crypto's largest interoperability protocols, carrying messages and bridged value between 30+ blockchains (Ethereum, Solana, the major L2s, BNB Chain, Sui, Aptos and more) — live from the public Wormholescan API, no key. Over its life Wormhole has relayed well over a billion messages; cross-chain volume is a core health metric of the multi-chain economy: how much value is actually moving between ecosystems, which chains are the busiest source of that flow, and which assets are being bridged. The stats endpoint is the global scorecard: total messages ever relayed, total bridged volume and the value locked, plus message counts and volume over the last 24 hours, 7, 30, 90 days and a year. The chains endpoint ranks the blockchains by their cross-chain transfer activity over the last day — the number of transfers leaving each chain and the dollar volume — so you can see which ecosystems are the busiest exporters of value. The assets endpoint ranks the tokens being bridged the most by dollar volume. This is the cross-chain messaging / bridge-flow cut — distinct from single-bridge feeds (Across, THORChain), the DeFi-TVL and DEX feeds, and the on-chain and price feeds. Volumes and value locked are in US dollars; everything is live. Built for crypto cross-chain analytics, bridge monitoring and multi-chain dashboards.

api.oanor.com/wormhole-api

Live cross-chain bridge data from Across, one of the largest intent-based bridges, which moves USDC, ETH, WBTC and other assets between Ethereum and its rollups (Arbitrum, Base, Optimism, Polygon, zkSync, Linea, Blast, Scroll and more) using a relayer network and a single unified liquidity pool. The quote endpoint prices a bridge transfer — the relayer capital fee, gas fee, LP fee, total fee, the amount received and the estimated fill time. The routes endpoint lists every supported bridge route (origin chain, destination chain, token). The limits endpoint returns the min and max bridgeable amount for a route. The chains endpoint lists supported chains. Read live from Across, nothing stored. This is Across's own cross-chain bridge fee, route and fill-time layer — distinct from DEX, lending, staking and price feeds.

api.oanor.com/across-api

Live cross-chain liquidity data from THORChain — the decentralised cross-chain automated market maker (AMM) that swaps native assets (BTC, ETH, BCH, AVAX and more) across separate blockchains without wrapping or bridging, settling every trade through its native RUNE asset and continuous liquidity pools. Read straight from a public THORNode REST endpoint as clean JSON. List every liquidity pool with its RUNE and asset depth, RUNE price and USD price, pool units and status; pull one pool's full depth and pricing; read the protocol's economics — total bonded RUNE, effective security bond, reserve and bonding / liquidity APY; get the current inbound vault address, router and gas rate for every connected chain plus halt flags; or read the last observed and signed block height per connected chain, THORChain's cross-chain heartbeat. Live, no cache. This is THORChain's cross-chain AMM, liquidity-pool and vault layer — distinct from single-chain explorers and from price feeds: continuous liquidity pools settled in RUNE.

api.oanor.com/thorchain-api