IOST is the native token of the Internet of Services (IOS) blockchain platform, a high-throughput Layer 1 built by the IOST Foundation targeting decentralized application developers seeking thousands of TPS at low cost — using a “Proof of Believability” consensus combining stake-weighted delegation with on-chain reputation scoring to select block producers.
| Stat | Value |
|---|---|
| Ticker | IOST |
| Price | $0.00 |
| Market Cap | $36.79M |
| 24h Change | +0.2% |
| Circulating Supply | 32.72B IOST |
| Max Supply | 90.00B IOST |
| All-Time High | $0.13 |
| Contract (Binance Smart Chain) | 0xaf48...cb48 |
How It Works
- Proof of Believability (PoB) — IOST’s consensus mechanism combines two factors: “Servi” points (a reputation score earned by contributing to the network — staking, validating, participating) and IOST stake. Block producer candidates are selected based on a combined believability score, not stake alone.
- Servi system — Servi are non-transferable reputation points that accumulate by performing correct actions on the IOST network. Servi-based selection randomizes producer ordering even among similarly-staked nodes.
- Sharding — IOST implements an efficient distributed sharding framework to parallelize transaction processing, enabling higher throughput than single-shard chains.
- Smart contracts — IOST supports JavaScript smart contracts (via V8 engine) and Rust/WebAssembly contracts, making it accessible to web developers without learning Solidity.
- Resource model — Rather than gas fees, IOST uses a “GAS” model (distinct from Ethereum’s) where staked IOST generates GAS for transaction processing and “RAM” for storage allocation.
Tokenomics
| Parameter | Value |
|---|---|
| Ticker | IOST |
| Max Supply | 90,000,000,000 (90 billion, with additional inflation) |
| Consensus | Proof of Believability (PoB) |
| Launch | January 15, 2019 |
| Smart contract language | JavaScript / Rust (WebAssembly) |
| TPS (claimed) | 8,000+ |
Use Cases
- High-throughput DApps — Build applications requiring thousands of TPS (gaming, payment platforms, supply chain).
- JavaScript smart contracts — Allows web developers to write IOST contracts without learning blockchain-specific languages.
- Staking — Stake IOST to earn GAS (for transactions), RAM (for storage), and staking rewards.
History
- 2017 — IOST is founded by Jimmy Zhong and a team of entrepreneurs previously involved with e-commerce and blockchain projects. IEO and private sale raise approximately $35 million.
- 2019-01-15 — IOST mainnet launches. PoB consensus goes live. Smart contracts in JavaScript/V8 available.
- 2019–2020 — IOST focuses on Asian markets, particularly DApp ecosystems in China and South Korea. Several gaming and DeFi applications launch on IOST.
- 2021 — IOST expands DeFi ecosystem (DeFi on IOST). IOST peaks in price during the broader bull market.
- 2022–2025 — IOST continues operating. Competition from EVM-compatible chains limits developer adoption compared to Ethereum layer 2s. Community remains active but smaller than mid-tier EVM chains.
Common Misconceptions
“PoB is the same as DPoS.”
Proof of Believability incorporates Servi (non-transferable reputation points) alongside stake — a distinction from standard DPoS where only staked tokens determine validator selection. Servi makes it harder for large holders to monopolize block production through pure stake.
“IOST uses Ethereum’s gas model.”
IOST uses a distinct resource model where staked IOST generates GAS for transactions and RAM for storage, rather than paying per-transaction gas fees in the Ethereum style.
Social Media Sentiment
IOST has a moderate following primarily in Asia. Its JavaScript smart contract support attracted some web developers. The broader trend toward EVM-compatible chains reduced competitive differentiation. IOST maintains a live network and active community but operates at lower visibility than similarly-aged chains that adopted EVM compatibility.
Last updated: 2026-04