#onchain

Live data for SX Bet, the on-chain sports prediction & betting exchange on SX Network, with no key. List the active sports-betting markets (moneyline, spread, total) with their two named outcomes, teams, league, sport and game time; get the supported sports; the active leagues with event counts; and the active fixtures (upcoming games) for any league. The peer-to-peer sports-prediction layer for odds dashboards, fixture monitors and sports-data apps — distinct from Polymarket, Kalshi and Limitless. Covers 29 sports across 100+ live markets.

api.oanor.com/sxbet-api

Live data for Limitless Exchange, the on-chain prediction market on Base, with no key. List the active markets with each market's title, live YES/NO implied-probability prices (0–1), traded volume, deadline and category tags; pull a single-market detail by slug; and get the full tag list. Prices are the live market-implied odds for each binary outcome, settled in USDC — distinct from Polymarket and Kalshi. Ideal for odds dashboards, event monitors and crypto-native sentiment analytics across 900+ live markets.

api.oanor.com/limitless-api

Cardano native tokens, live from the public Koios API — no key, nothing cached. On Cardano every token is a "native asset" identified by a policy id plus an asset name, minted under a Plutus or native minting policy. The Cardano on-chain reader lists the tokens held by an account, but there is no token registry in the marketplace; this opens it. Browse the verified token registry — the curated tokens that have submitted off-chain metadata, with their ticker, decimals, description and logo. Look up a single token in full with its on-chain facts: the asset fingerprint, total supply, how many times it has been minted and burned, and when it was first created. And list every native asset minted under a given policy id — one policy can mint a single fungible token or a whole NFT collection. The token layer for Cardano wallets, DEXs, token explorers and analytics. Live from api.koios.rest.

api.oanor.com/cardanotokens-api

Algorand Standard Assets (ASAs) — Algorand's native token standard — live from the public Algonode indexer, no key, nothing cached. Every fungible and non-fungible token on Algorand, including Circle's USDC and Tether's USDt, is an ASA. The Algorand on-chain reader looks up a single asset, but there is no ASA registry in the marketplace; this opens it. Browse the ASA space paginated, each asset with its id, name, unit, total supply and decimals. Look up a single ASA in full — its name, unit, total supply (raw and decimal-adjusted), project URL and the on-chain role addresses that govern it: the manager (can reconfigure or destroy), the reserve, the freeze address and the clawback address. And search ASAs by name to find a token (with a reminder to verify the creator, since anyone can mint an ASA with any name). The token layer for Algorand wallets, DEXs, token explorers and analytics. Live from mainnet-idx.algonode.cloud.

api.oanor.com/algorandasa-api

The Liquid Network — Bitcoin's confidential sidechain — live from the public Blockstream esplora API, no key, nothing cached. Liquid is a federated Bitcoin sidechain with one-minute blocks, confidential transactions and issued assets (Tether's USDt and many others live here as Liquid assets), with L-BTC pegged one-to-one to Bitcoin. This is the first Liquid reader in the marketplace. Read the live network status — the chain tip block height and the current mempool, with the count of unconfirmed transactions, their total virtual size and total fees. Read any block by height, or the current tip, with its hash, previous block, timestamp, transaction count, size and weight. And read the live fee estimates in sat/vB keyed by the number of blocks you are willing to wait. The on-chain layer for Liquid wallets, asset issuers, explorers and analytics. Live from blockstream.info.

api.oanor.com/liquid-api

The Mina Protocol blockchain — the "succinct blockchain" — live from a public Mina GraphQL node, no key, nothing cached. Mina uses recursive zk-SNARKs to keep the entire chain a constant ~22 KB regardless of history, and secures itself with delegated proof-of-stake (Ouroboros Samasika). This is the first Mina reader in the marketplace. Read the live network status — the blockchain length (tip height), sync status, chain id, the current consensus epoch and slot and the total number of accounts. Read the best (tip) block with its state hash, height, epoch, the block producer who created it and the total MINA supply at that block. And look up any account by public key for its MINA balance (total and liquid), its transaction nonce and the staking delegate it has assigned its stake to. The on-chain layer for Mina wallets, explorers, stakers and analytics. Live from api.minascan.io.

api.oanor.com/mina-api

The Flow blockchain's native Cadence layer, live from the official public Flow access REST API — no key, nothing cached. Flow runs two environments: an EVM layer and its own resource-oriented Cadence environment. The existing Flow reader covers the EVM side; this opens the Cadence layer it cannot see. Read a Cadence block by height — or the latest sealed block — with its id, parent block, timestamp and the number of collection guarantees and seals it carries. Look up any Cadence account for its FLOW balance, the number of account keys it holds and the Cadence smart contracts deployed under it. And read the live network status: the chain id, the access-node software version, the current spork id, the protocol state version and the compatible block-height range. The Cadence-on-chain layer for Flow wallets, explorers, dapp builders and analytics. Live from rest-mainnet.onflow.org.

api.oanor.com/flowcadence-api

The Radix Network validator set and ledger status — Radix's proof-of-stake — live from the official public Radix Gateway API, no key, nothing cached. Radix is a layer-1 built for DeFi with its own asset-oriented ledger; its network is secured by validators who stake XRD and accept delegations. This is the first Radix reader in the marketplace. Rank the validators by staked XRD, each with its name, total stake, share of network stake, fee factor and whether it is in the current active set. Look up a single validator by its component address for its stake, rank, share and fee. And read the live ledger status — the current epoch and round, the ledger state version, the validator count and the total XRD staked across the network. The validator-and-staking layer for Radix wallets, staking dashboards, delegators and analytics. Live from mainnet.radixdlt.com.

api.oanor.com/radixvalidators-api

The Arweave permaweb — the pay-once-store-forever blockchain — live from the public Arweave gateway, no key, nothing cached. On Arweave you pay a single up-front fee and your data is stored permanently; this is the first Arweave reader in the marketplace. Quote the permanent storage cost for any data size — in winston, AR and US dollars — so apps can show "store this forever for $X" for anything from a 1 KB record to a 1 TB archive (AR/USD priced live). Read the live network info: the weave height, total block count, the number of connected peers and the running node version. And look up any block by height for its independent hash, previous block, timestamp, transaction count and the miner reward pool (in AR). The storage-and-network layer for Arweave wallets, permaweb apps, archivers and analytics. Live from arweave.net.

api.oanor.com/arweave-api

The Aptos proof-of-stake validator set and staking economics, live from the official public Aptos fullnode — no key, nothing cached. Where the Aptos account and resource readers cover balances and the view reader runs Move calls, this curates the consensus layer they miss. Rank the active validators by voting power — each with its share of total network stake, its operator and its pool address. Read the network-wide staking config: minimum and maximum stake (in APT), the recurring lockup period, the per-epoch reward rate, the voting-power increase limit and the current epoch. And inspect any single stake pool for its active, inactive and pending stake (in APT), the operator that runs the validator, the account delegated to vote, and the unlock timestamp. The staking-and-validator layer for Aptos wallets, staking dashboards, delegators and on-chain analytics. Live from fullnode.mainnet.aptoslabs.com.

api.oanor.com/aptosvalidators-api

Read the Hedera Consensus Service (HCS) live from the public Hedera mirror node — no key. HCS is Hedera's signature feature: a decentralized, ordered, timestamped message log that powers audit trails, supply-chain tracking, oracles and tokenization registries — the layer that account- and token-readers miss entirely. Look up any topic for its memo, admin/submit-key control, auto-renew and deleted state; read a topic's most recent messages, decoded from base64 to text, each with its consensus sequence number, timestamp and the account that paid to submit it; or discover the topics that are actively receiving messages right now. The consensus-messaging layer for Hedera wallets, explorers, dApps and auditors. Live from the mirror node; short cache only.

api.oanor.com/hederatopic-api

Inspect Algorand stateful smart contracts (applications) live from the public Algonode indexer — no key. Where account- and asset-readers cover ALGO and ASAs, this covers the layer-1 application logic: look up any application by id for its creator, its decoded global state (the on-chain key/value store the contract actually keeps), the size of its approval and clear programs, its global and local state schemas and extra program pages; list every application an account has created; or browse the application space. The smart-contract layer for Algorand wallets, explorers, dApp builders and auditors who need to read exactly what a contract stores and who controls it. Reads straight from the indexer; short cache only.

api.oanor.com/algorandapp-api

Read live Cardano chain economics and epoch data from the public Koios indexer — no key — focused on the network-wide view that stake-account and asset readers miss. The tip endpoint returns the chain head: the current epoch, block height and slot. The epoch endpoint returns any epoch's activity — blocks produced, total transactions, total output and fees (in ADA) and the active stake securing it, with its start and end. And the supply endpoint returns Cardano's ADA monetary breakdown: total supply, circulating, reserves (still to be issued), treasury (the on-chain governance fund) and the reward pot, against the fixed 45-billion-ADA cap. The chain-economics layer every Cardano wallet, explorer, staker and analytics tool needs. Live from the indexer; short cache only.

api.oanor.com/cardanochain-api

Read the live Sui validator set and staking economics from a public Sui fullnode JSON-RPC — no key. Sui is delegated proof-of-stake; this surfaces what account- and coin-readers miss: the active validators ranked by stake, each with its commission rate, live APY, voting power and staking-pool balance; any single validator's full profile (rewards pool, gas price, metadata); and the current epoch's system state — total stake, validator count, reference gas price, storage fund and epoch timing. The staking-and-validator layer every Sui wallet, staking dashboard, delegator and analytics tool needs to decide where to stake and how the network is secured. Live from the chain; short cache only.

api.oanor.com/suivalidators-api

Read live Tezos staking and delegation data from the public TzKT indexer — no key. Tezos secures itself through "bakers" (its validators) that stake XTZ and accept delegations; this surfaces the layer that account- and operation-level APIs miss. Rank the active bakers by stake with their delegated balance, number of stakers and commission fee; look up any single baker for its full profile (balances in XTZ, stakers, delegation, activity); and read the current protocol cycle — its index, rights-snapshot level, total baking power and the number of bakers and delegators — so stakers can judge yield and decentralization before they delegate. The staking-and-baker layer every Tezos wallet, delegation dashboard, staker and analytics tool needs. Live from the indexer; short cache only.

api.oanor.com/tezosbakers-api

Read the live economic state of any Cosmos SDK chain from public LCD/REST endpoints — no key — across the Cosmos Hub, Osmosis, Celestia, Injective, Juno and dozens more via one chain parameter. The staking endpoint returns the network's bonded and unbonded tokens, the bonded ratio (how much of the supply is securing the chain) and its current inflation; the governance endpoint returns the latest on-chain proposals with their status and voting timeline; and the supply endpoint returns the total supply of the chain's staking token plus its community pool. Distinct from validator- and account-level APIs: this is the chain-economics and governance layer for Cosmos wallets, stakers, dashboards, validators and analytics. Live; short cache only.

api.oanor.com/cosmoschain-api

Execute read-only contract view methods on NEAR, live, via public NEAR RPC — no key. This is NEAR's equivalent of an eth_call: run any contract's view method against the current chain state and get its return value, with no transaction, gas or signer. Call a method by name with JSON arguments on any contract, or use the convenience endpoints for a NEP-141 fungible token's metadata and total supply and for any account's token balance. Read whatever a NEAR contract exposes — token data, AMM pool reserves, registry lookups, DAO and staking state — straight from the source, with the byte result decoded from JSON for you. The on-chain read layer every NEAR wallet, dashboard, trading bot and indexer needs. Live from the chain; short cache only.

api.oanor.com/nearview-api

Inspect deployed Solana programs live from public Solana RPC — no key — and answer the question that matters most for safety: can this program still be changed, and by whom? For any program address it resolves the loader it runs under, whether it is executable, its on-chain ProgramData account, the upgrade authority (or that it has been made immutable / frozen), and the slot it was last deployed at. A batch endpoint audits up to twelve programs at once — perfect for checking the upgrade authority of every program a protocol depends on before you trust it — and a loaders endpoint documents Solana's program loaders. Distinct from balance, token and transaction APIs: this is the program and upgrade-authority layer that auditors, wallets and security tooling rely on to judge whether a Solana program is safe. Live from the chain; short cache only.

api.oanor.com/solanaprogram-api

Read live data on TRON's TRC-20 tokens — the standard that settles the largest share of the world's USDT (Tether) — straight from the public TronScan API, no key. Resolve any TRC-20 contract to its name, symbol, decimals, total supply, holder count, on-chain verification status and live market data (USD price, market cap, 24-hour volume); stream a token's most recent transfers decoded into from / to / amount; and rank the whole TRC-20 universe by market cap, holders or volume. Where TRON wallet APIs show an account's activity, this is the token-level view — what a token is and how it moves. The TRC-20 data layer every wallet, explorer, trading tool and analytics dashboard needs. Live; short cache only.

api.oanor.com/trc20-api

Execute read-only Move view functions on Aptos, live, via the official public Aptos fullnode REST API — no key. This is Aptos's equivalent of an eth_call: run any #[view] function against the current chain state and get its return value, without a transaction, gas or a signer. Call a function by its fully-qualified name (like 0x1::coin::balance) with type and value arguments, or use the convenience endpoints for any account's coin balance and a coin's total supply. Read any on-chain state a contract exposes — balances, configuration, prices, registry lookups, DeFi pool reserves — straight from the source. The on-chain read layer every Aptos wallet, dashboard, trading bot and indexer needs. Live from the chain; short cache only.

api.oanor.com/aptosview-api

Inspect the Move smart-contract code published in any Sui package, live from a public Sui fullnode JSON-RPC — no key. Sui contracts are published as packages of Move modules; this reads their normalized ABI: list every module in a package, read a module's exposed functions (visibility, entry flag, type parameters with their abilities, parameter and return type tags) and struct definitions, or drill straight into a single function's signature. Unlike object- and coin-readers, this exposes the callable interface itself — exactly what a Sui package lets you do — the layer Sui wallets, explorers, programmable-transaction-block builders and SDK and binding generators need before they can construct a transaction. Reads straight from the chain; live, short cache only.

api.oanor.com/suimodules-api

Inspect the Move smart-contract code published at any Aptos account, live from the official public Aptos fullnode REST API — no key. Where a resources endpoint shows an account's data, this shows its code: list the Move modules an account publishes, read any module's full ABI — its exposed functions with their visibility, entry and view flags, generic type parameters, parameter and return types, plus its struct definitions — and filter straight to the callable entry functions (state-changing transactions) and view functions (read-only queries) a dApp can invoke. The on-chain interface layer for Aptos wallets, explorers, SDK and binding generators, and security tooling that need to know exactly what a contract exposes before calling it. Reads straight from the chain; live, short cache only.

api.oanor.com/aptosmodules-api

Decode any Solana transaction by its signature, live from public Solana RPC — no key. Where a signatures list just tells you a transaction happened, this tells you what it did: the fee and fee payer, success or failure with the on-chain error, the slot and block time, compute units consumed, the parsed instructions and full program log, and — most usefully — the actual value that moved, decoded into SOL balance changes and SPL-token balance changes per account. A dedicated transfers endpoint extracts just the money movements, and a status endpoint gives a fast confirmation check (processed / confirmed / finalized) for payment flows. Call any endpoint without a signature and it returns a fresh live example transaction. The transaction-decoding layer every Solana wallet, explorer, payment processor and trading bot needs. Live from the chain; short cache only.

api.oanor.com/solanatx-api

Read Solana SPL token data live, straight from public Solana RPC nodes — no key. Resolve any token mint to its on-chain truth: total supply (raw and human-readable), decimals, mint authority and freeze authority (so you can tell at a glance whether more tokens can still be minted or holder accounts frozen — a core rug-risk signal), the program it belongs to (Token vs Token-2022) and its initialization state. Inspect any account by address — a mint, a token account (with its mint, owner and balance) or anything else — and resolve up to twenty mints in a single call. Where EVM chains use 0x contracts, Solana tokens are mint accounts under the SPL Token program, and this reads them directly. The token layer every Solana wallet, explorer, trading bot and analytics tool needs — distinct from SOL-balance and network APIs. Live from the chain; short cache only.

api.oanor.com/spltoken-api

Fetch verifiable Merkle-Patricia proofs of EVM account and storage state, live, via the chain's public JSON-RPC (eth_getProof, no key). For any address it returns the account's nonce, balance, code hash and storage hash together with the Merkle account proof; for any storage slot it returns the value and its storage proof; and it exposes the block's state, transactions and receipts roots — the roots those proofs verify against. This is the light-client and cross-chain-verification primitive: prove that an account existed or that a storage value was exactly what you claim at a given block, without trusting an indexer. Used by bridges, rollup verifiers, light clients and audit tooling, across Ethereum, Base, Arbitrum, Optimism, BNB, Polygon and more. Reads straight from the chain; live, short cache only.

api.oanor.com/stateproof-api

Query any EVM contract's emitted event logs live via the chain's public JSON-RPC, filtered by address, topics and block range, with every log decoded — block, transaction hash, indexed topics and data. A convenience endpoint decodes ERC-20 Transfer events straight into from / to / value. Unlike a single-transaction receipt lookup, this answers "what happened on this contract over this window" — the indexing primitive behind every block explorer, analytics dashboard and on-chain webhook. Pass raw topic hashes or a known event name like Transfer or Approval. Works on any contract, verified or not, across Ethereum, Base, Arbitrum, Optimism, BNB, Polygon and more. Reads straight from the chain; live, short cache only.

api.oanor.com/eventlogs-api

Convert a timestamp or date into the block number that was live at that moment on any of 100+ blockchains, keyless. On-chain analysts, indexers and dashboards constantly need "what block was chain X at time T" to query historical state, and "which blocks cover this time window" to scan a period. This API answers both — for a single moment and for a date range (returning the start and end block plus the block count and average block time). Live, nothing stored. The timestamp-to-block layer for EVM and non-EVM chains alike. Backed by the open DeFiLlama coins API.

api.oanor.com/blocktime-api

The Bitcoin blockchain as an API, powered by mempool.space. Get live transaction-fee estimates in sat/vB (fastest, 30-minute, 1-hour, economy and minimum) plus a projection of the next mempool blocks, inspect the current mempool size and fee histogram, list recent blocks with their mining pool, size and fees, look up any block by height or hash, check any Bitcoin address for its confirmed balance, total received/sent and recent transactions, fetch any transaction with its inputs, outputs, fee and confirmation status, read the current difficulty adjustment and network hashrate, and get the live BTC price in major currencies. Every amount is in satoshis. Perfect for wallets and fee estimators, block explorers, address and payment monitoring, on-chain dashboards and analytics, and Bitcoin bots. No accounts, no upstream key. For coin market prices use the Crypto API and for DeFi TVL the DeFi API.

api.oanor.com/bitcoin-api