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| API3 
| #API3
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| API3 Price: | $0.80 | | Volume: | $18.7 M | | All Time High: | $10.17 | | Market Cap: | $59.9 M |
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| Circulating Supply: | 74,599,133 |
| Exchanges: | 45
| | Total Supply: | 148,345,157 |
| Markets: | 51
| | Max Supply: | — |
| Pairs: | 29
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The price of #API3 today is $0.80 USD.
The lowest API3 price for this period was $0, the highest was $0.803, and the exact current price of one API3 crypto coin is $0.80292.
The all-time high API3 coin price was $10.17.
Use our custom price calculator to see the hypothetical price of API3 with market cap of BTC or other crypto coins. |
The code for API3 crypto currency is also #API3.
API3 is 4.5 years old. |
The current market capitalization for API3 is $59,896,980.
API3 is ranking upwards to #309 out of all coins, by market cap (and other factors). |
The trading volume is large today for #API3.
Today's 24-hour trading volume across all exchanges for API3 is $18,715,926. |
| The circulating supply of API3 is 74,599,133 coins, which is 50% of the total coin supply. |
AccessControlRegistry Contract Vulnerability Related to OpenZeppelin Dependencies
See the API3 security announcement published on December 10th, 2023 for context. The vulnerability disclosed in this article has been eliminated without ever being exploited, and no user was harmed. On December 6th, Quantstamp informed us that a contract that they have previously audited for API3 was potentially affected by a vulnerability. They refrained from providing more details as the vulnerability applies to contract implementations by other parties as well, but they offered to guide us through a response to it. We informed them that the said contract is not in use yet and no response is required. However, we requested from them to check our AccessControlRegistry implementation for the same vulnerability, as it shared similarities. Our suspicion was confirmed and we addressed the issue across many chains within a few hours, followed by a migration, which ultimately resulted in the elimination of the vulnerability without any loss of funds. We thank Quantstamp for the warning and our users for their swift response. This report is a full disclosure of the specific vulnerability. As disclosed by OpenZeppelin on December 8th, inheriting two components from the OpenZeppelin contracts, ERC2771Context and Multicall, resulted in anyone being able to spoof sender addresses in the inheriting contract. This was patched in v4.9.4, v4.9.5 and v5.0.1, soon after their disclosure. Our AccessControlRegistry implementation was one of t... 
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API3 Security Announcement
API3 is committed to maintaining the highest standards of security and transparency. We have identified a potential risk that requires action from our users’ end. Once ample time has been given to all potentially endangered parties to respond, we will publish a detailed report. This is not related to the API3 token contract, the API3 DAO and staking pool contracts, or the Airnode request-response protocol contracts included in @api3/airnode-protocol (used by Airnode, ChainAPI, and QRNG). It is important to note that no funds were lost and no harm occurred. The relevant components have been redeployed with a guided fix for the issue. In the past days, all known affected users have been contacted and they have taken steps to switch over to the new deployments, successfully eliminating any known potential risk. API3 dAPIs are permissionless to read, which is why we have no reasonable way to determine everyone who might be using our data feeds. If you have not been contacted by API3 in recent days or did not have a preexisting communications line with us, please make sure to follow the steps outlined below to utilise the newly deployed data feeds immediately. — Instructions for dAPI Users - Go market.api3.org to deploy a new proxy contract for each dAPI you use., Update your old dAPI proxy addresses with the new ones., If you are using @api3/contracts or @api3/airnode-protocol-v1 as dependencies in your projects, upg...
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API3 Delivers Verifiable, Decentralized Data Feeds to Base
We are excited to announce that API3’s managed dAPIs are available on Base. Developers on Base can now access over 120 verifiable, decentralized data feeds powered by first-party oracle nodes, which are operated directly by the data providers. Base is an Ethereum L2 solution incubated by Coinbase that is built on Optimism’s open-source OP stack. Base is designed to be a secure, cost-effective, and developer friendly way for dApps to leverage Coinbase’s products and distribution to help build a global financial system around a frictionless user experience.“The introduction of API3’s dAPIs expands the oracle landscape on Base for developers looking for verifiable, decentralized data feeds to power their apps,” said Jesse Pollak, Creator of Base. Developers looking to utilize managed dAPIs on Base can visit the API3 Market. The API3 Market provides an easy way to browse, access, and manage a wide variety of data feeds, including crypto, forex, equities, and commodities. Managed dAPIs are changing the way dApps use real-time market data. Delivered as a managed service, they abstract away operational factors like gas management, maintenance, and monitoring. Developers looking to utilize managed dAPIs simply need to read the associated data feed.“API3’s managed dAPIs align perfectly with Base’s vision of building a frictionless, secure, and developer-centric global financial system. We’re simplifying the way dA...
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API3 Delivers Verifiable, Decentralized Data Feeds to Mantle
We are excited to announce that API3’s managed dAPIs are available on Mantle Network. Developers on Mantle Network can now access over 120 verifiable, decentralized data feeds powered by first-party oracle nodes, which are operated directly by the data providers. Mantle Network is a modular blockchain that combines an optimistic rollup with an innovative data availability solution. This allows Mantle Network to inherit the security of Ethereum while also being more cost effective and providing accessible data availability.“We’re thrilled to collaborate with API3 to bring Mantle Network developers API3’s managed dAPIs to supercharge their dynamic and complex builds. Projects will now have access to a variety of reliable and real-time data feeds on Mantle Network, enhancing the overall building experience for developers,” said Arjun Kalsy, Head of Ecosystem at Mantle. Developers looking to utilize managed dAPIs on Mantle can visit the API3 Market. The API3 Market provides an easy way to browse, access, and manage a wide variety of data feeds, including crypto, forex, equities, and commodities. Managed dAPIs are changing the way dApps use real-time market data. Delivered as a managed service, they abstract away operational factors like gas management, maintenance, and monitoring. Developers looking to utilize managed dAPIs simply need to read the associated data feed.“With our collaboration with Mantle, we’re lead...
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API3 Launches Verifiable, Decentralized Data Feeds on Rootstock
We are excited to announce that API3’s managed dAPIs are available on Rootstock. Developers on Rootstock can now access over 120 verifiable, decentralized data feeds powered by first-party oracle nodes, which are operated directly by the data providers. Rootstock is a Bitcoin sidechain secured by over 50% of the total hashing power of the Bitcoin mainchain. This makes it the most secure smart contract platform in the world. Rootstock has rapidly become known as the home of DeFi on Bitcoin. Rootstock transforms Bitcoin from a store of value into a fully decentralized financial system. As the first open-source and EVM compatible platform powered by the bitcoin network, Rootstock aims to enrich its ecosystem by facilitating smart contracts, rapid payments, and enhanced scalability. Rootstock is a full tech stack built on top of bitcoin — from smart contracts to the Rootstock Infrastructure Framework. By seamlessly integrating merged mining, its built-in two-way peg protocol, and smart contract functionality, Rootstock brings together the benefits of dApps with the unmatched security of the bitcoin network.“We’re thrilled to reveal API3 addition into the Rootstock ecosystem. This rapid deployment reinforces Rootstock as the cornerstone for DeFi on Bitcoin and augments the set of infra key providers for developers to smoothly build DeFi platforms on Rootstock’s EVM while leveraging the unparalleled security of the Bi...
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API3 Delivers Verifiable, Decentralized Data Feeds to Kava
We are excited to announce that API3’s managed dAPIs are available on Kava Chain. Developers on Kava can now access over 120 verifiable, decentralized data feeds powered by first-party oracle nodes, which are operated directly by the data providers. Kava is the first Layer 1 blockchain to combine the speed and scalability of the Cosmos SDK with the developer power of Ethereum. The hallmark feature of the Kava Chain is its co-chain architecture, enabling developers to build and deploy their projects using either the EVM or Cosmos SDK execution environments with seamless interoperability between the two. The Kava Chain’s unique architecture enables the free flow of users, assets, and projects between Kava and the industry’s most relevant ecosystems at scale, all powered by the lightning-fast Tendermint Core consensus engine. Developers looking to utilize managed dAPIs on Kava can visit the API3 Market. The API3 Market provides an easy way to browse, access, and manage a wide variety of data feeds, including crypto, forex, equities, and commodities. Managed dAPIs are changing the way dApps use real-time market data. Delivered as a managed service, they abstract away operational factors like gas management, maintenance, and monitoring. Developers looking to utilize managed dAPIs simply need to read the associated data feed.“Our collaboration with Kava to integrate managed dAPIs reflects our commitment to scaling DeFi acro...
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API3 Launches Verifiable, Decentralized Data Feeds on Linea
We are excited to announce that API3’s managed dAPIs are available on Linea. Developers on Linea can now access over 120 verifiable, decentralized data feeds powered by first-party oracle nodes, which are operated directly by the data providers. Linea is a developer-centric zkEVM rollup, designed as an innovative Layer 2 solution for scaling Ethereum dApps. Developed by Consensys and natively integrated with MetaMask, it combines zero-knowledge proofs with full Ethereum Virtual Machine (EVM) compatibility. This allows developers to seamlessly create or migrate scalable dApps without code alterations. DeFi applications are choosing Linea for its fast finality, capital efficient bridge, and inherited Ethereum security. NFTs, gaming, and social apps benefit from the zkEVMs EVM Equivalence, low gas fees, high throughput, and low latency.“We’re thrilled to team up with API3. This collaboration brings high-quality, verifiable data feeds to Linea, making us an even more compelling choice for DeFi developers. With API3’s trusted oracles, we’re not just streamlining data costs — we’re actively enhancing the robustness of DeFi applications built on our platform, “ said Declan Fox, Global Product Lead for Linea. Developers looking to utilize managed dAPIs on Linea can visit the API3 Market. The API3 Market provides an easy way to browse, access, and manage a wide variety of data feeds, including crypto, forex, equit...
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DAO Snippets: Signaling Blockchain — an interview with Mark Fitzgibbon
DAO Snippets: Signaling Blockchain — an interview with Mark Fitzgibbon - In the previous installment of this series, we met Ugur Mersinlioglu, leader of the dAPI team. With a background in IT, Ugur began his Web3 career as a business developer at API3 and gradually shouldered more responsibilities, leading to the establishment of his own team integral to the project’s development. Today, we are interviewing another core contributor within the API3 DAO. Meet Mark Fitzgibbon, member of the Operations Team and Director of the API3 Foundation, who engaged in various business environments across the globe before eventually finding his way into Web3. Marcus: Hello Mark. Thank you for joining me for the interview today. Before we get started, please tell us a little bit about your background. Mark: Thanks, Marcus. I have a background of nine years in the military, where I served as a signal intelligence and electronic warfare officer. Throughout this period, I was deployed in North Ireland and Germany. My responsibilities encompassed training people in basic signals protocol and encoding, as well as monitoring comms and running the comms aspect of command and control in an operational battlespace. After my service, I made a deliberate shift into academia, where I pursued my Master’s degree in Propaganda Theory. I also started a PhD thesis, but the funding was lost early on, so I was unable to continue. I eventually got occ...
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API3 Weekly dAPI Update
Recent Developments on the API3 Market. — As of last week, managed dAPIs are officially live on the API3 Market marking a significant milestone for API3. We are currently in the process of expanding the service to new chains to expand the reach of dAPIs. Every week, the dAPI team is activating more and more feeds, bringing real-time, accurate data to your smart contracts straight from the source. Built on the principle of “don’t trust, verify”, we believe in complete transparency. That’s why we’ve decided to share weekly updates, granting you an insider’s look and unparalleled visibility on our progress. — dAPI Dashboard - 🔒 Total Value Secured (TVS): $7.9M ⚙️ Total chains: 11 ⟁ Total active dAPIs (self-funded + managed): 357 View the full dAPI dashboard. — Chains Update - The dAPI team has added the following data feeds this past week, allowing any dApps to read the proxy contract: — Arbitrum One. — Verify tx hash: 0xfb23025b1e301c4b46bd4f8317b19d33cbdbe046452b022b556362ece70631ee Managed dAPIs 0.25% deviation | 24hr heartbeat | 3 months ETH/USD, BTC/USD, EUR/USD, GBP/USD, — Polygon zkEVM. — Verify tx hash: 0x97893bfa26cfd544076f2e9110b6649764130b132da095afa61a0f935ae73823 Managed dAPIs 0.25% deviation | 24hr heartbeat | 3 months BTC/USD, ETH/USD, 0.5% deviation | 24hr heartbeat | 3 months MATIC/USD, USDC/USD, USDT/USD, DAI/USD, — Data Feeds Updat...
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How to Use First-Party Data Feeds in Your Smart Contracts
Using API3’s Managed and Self-funded dAPIs in your Solidity Smart Contracts. — It is crucial for dApps interacting with off-chain data to have access to secure oracles. With the coming new ZK chains like Polygon zkEVM and zkSync Era, it is extremely hard to find secure oracles serving off-chain data with complete transparency, especially for major DeFi protocols securing millions in TVL and serving a large user base 24/7. Apart from availability and security, developers have long sought a straightforward, plug-and-play data feed solution for their smart contracts that is easy to integrate and natively supports multiple chains. With these goals in mind, API3 has built a first-party oracle solution that offers secure, transparent, and accurate data feeds on most major EVM chains, while being simple to integrate and use. — Start Using Managed dAPIs in Your Smart Contracts - Connecting smart contracts to price reference data is easy with API3’s decentralized first-party data feeds. Managed dAPIs are data feeds that are sourced directly from multiple first-party oracles and are then aggregated on-chain. They utilize API3’s Airnode, which is a first-party oracle node run by the API provider to serve price data on-chain to DeFi protocols. As a managed service, API3 manages the gas costs and monitoring, which is currently available on 11 EVM-compatible chains. — Getting Started - Head over to the API3 Market ...
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