What Tellor does

Tellor is a decentralized oracle protocol that delivers censorship-resistant, off-chain data to smart contracts across more than fifteen blockchain networks. Founded in 2019 and live on Ethereum mainnet since August 1, 2019, the protocol issues the native TRB (Tribute) token, which is staked by reporters, used to tip data submissions, and allocated as time-based inflationary rewards (75% to reporters, 25% to validators under Tellor Layer). The current architecture centers on Tellor360 — an immutable, modular set of oracle contracts with dedicated components for data storage, autopay, dispute resolution (DVM), governance, and the dataSpecs registry for custom query types — and on Tellor Layer, a standalone Cosmos SDK / CometBFT-based chain with light-client bridges to Ethereum and other EVM networks, on which reporter rewards fully transitioned in May 2026.

Tellor's technology stack is purpose-built for permissionless, programmable data delivery. Integrators query Tellor contracts on supported chains and pay per-request TRB tips that compete among staked reporters, with median/average aggregation, an active dispute and slashing mechanism, and bridge-based propagation of verified data across ecosystems. Notable product components include the open-source Telliot CLI for reporters, the Autopay contract for recurring data purchases, the EVMCall cross-chain calldata feature, and an Operator Dashboard unifying validators, reporters, delegators, and security providers.

Tellor serves decentralized finance (DeFi) protocols (lending markets such as Liquity, elastic supply tokens such as Ampleforth, stablecoins such as Reflexer/RAI), prediction markets (DIVA), liquid staking and synthetic-asset protocols, cross-chain bridges, and DAO tooling. It is structured as an open-source, community-governed protocol with no disclosed incorporation, no pre-mine, and no ICO; founding capital included a 2020 Binance Labs investment. The protocol's go-to-market is community- and developer-led: integration is self-serve via documentation, GitHub repositories, and on-chain contracts, supplemented by educational bootcamps with partners such as Encode Club. Reported revenue streams are protocol-native (TRB tips and inflationary TRB rewards), and the company itself does not disclose a corporate-level revenue figure.

Name

Tellor

Legal name

Tellor

Website

https://tellor.io

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

11–50 employees

Short description

Tellor is a decentralized oracle protocol delivering censorship-resistant off-chain data to DeFi and prediction-market smart contracts across 15+ blockchains via its Tellor360 modular contract framework and the Cosmos-based Tellor Layer chain.

Ownership category

akta.pro rank

Product category

Blockchain Oracle Infrastructure

NAICS

Financial Transactions Processing, Reserve, and Clearinghouse Activities (522320), Computing Infrastructure Providers, Data Processing, Web Hosting, and Related Services (518)

SIC

Security & Commodity Brokers, Dealers, Exchanges & Services (6200)

akta.pro primary industry

Oracle Networks & Off-Chain Data (price feeds, randomness, attestation) (FSAPABAE)

akta.pro secondary industries

Cross-Chain Developer Tooling (messaging SDKs, relayers, interoperability APIs) (FSAPABAF), Oracle Node Operators & Data Provider Networks (FSADAKAH)

Keywords

• Decentralized oracle
• Blockchain data feeds
• DeFi infrastructure
• Smart contract oracle
• Cross-chain interoperability

Headquarters

HQ city

Frederick

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Software

Cost components

Technology or R&D, Personnel, Infrastructure, Operations, Marketing or Sales

Revenue model

1. TRB Token Tips (Data Fees): Integrators pay reporters in TRB tokens as tips to submit specific data points. Fees are programmatic, denominated in the protocol's native asset, and serve as the primary economic incentive for reporters.
2. Time-Based Reporter Rewards (Inflation): Block-reward style emissions of TRB are distributed to reporters who are selected to submit data within each reporting interval. New TRB tokens are minted according to the protocol's inflation schedule.
3. Team / Treasury Dev-Share: A portion of every reporter reward (originally 10%) is routed to the Tellor team's multisig / dev-share address to fund ongoing protocol development and operations. There was no pre-mine and no ICO.

Pricing tiers

Go-to-market motion3 records

Distribution channels4 records

Marketing channels9 records

Core offering

Tellor operates a decentralized, permissionless oracle protocol that delivers verified off-chain data to smart contracts across multiple blockchains. Reporters stake TRB tokens to submit data, which is aggregated and secured through crypto-economic mechanisms including dispute resolution and slashing. The protocol includes Tellor360 (modular EVM oracle contracts), Tellor Layer (a Cosmos SDK-based standalone oracle chain), Telliot (open-source reporter CLI), and EVMCall for cross-chain calldata relay.

Product overview

No source data available to confirm product offering or architecture.

Differentiator

Problem solved

Functional benefit

Brands

• Tellor Layer: Standalone oracle blockchain built on the Cosmos SDK with CometBFT consensus, designed to achieve consensus on oracle data, enhance cross-chain interoperability, and support modular / custom governance per query specification.
• Tellor360
• Tellor EVMCall
• Telliot

Products and services

• Tellor360 Immutable, modular set of oracle smart contracts with dedicated components for data storage, autopay, disputes (DVM), and governance. Designed to be censorship-resistant and permissionless while supporting custom dataSpecs. For DeFi developers and protocol teams needing verifiable on-chain price and reference data.
• Tellor Layer A Cosmos SDK / CometBFT-based blockchain designed specifically for oracle data consensus, cross-chain interoperability, and modular governance per query specification. Secured by light-client bridges back to Ethereum and other EVM chains. For integrators requiring a single source of truth across heterogeneous chains.
• Telliot Open-source command-line reporter client used by data reporters to submit verified off-chain values to the Tellor network. Reporters stake TRB, run Telliot, fulfill data requests, and earn TRB tips and time-based inflationary rewards. For individuals and teams operating oracle reporter infrastructure.
• Tellor EVMCall Cross-chain calldata relay query type within Tellor that allows reporters to read contract calldata from one EVM chain and write it to another. Enables richer on-chain interactions beyond simple price lookups. For developers needing cross-chain composability with oracle data.
• DataBridge (Light Client Bridge) Cross-chain data bridging mechanism that propagates verified oracle data from Tellor Layer to multiple EVM chains, enabling a single source of truth across ecosystems. For cross-chain applications and bridges.
• Tellor Data Feeds (Enshrined Feeds) Maintained set of popular oracle data feeds such as ETH/USD that are regularly reported without requiring specific tips. Ensures consistent flow of essential data, reduces gas costs, and provides a public good. For DeFi protocols requiring standard price feeds.
• Tellor Operator Dashboard Web-based dashboard introduced as a unified interface for participants in the Tellor Layer network, including validators, reporters, delegators, selectors, and security providers. For network participants managing their staking and reporting operations.
• TRB Token Native utility token of the Tellor protocol. Used for staking by reporters and validators as collateral, tipping to incentivize data submissions, time-based inflationary rewards (75% to reporters, 25% to validators), governance voting on protocol upgrades, and dispute resolution with potential slashing. For all network participants.

Quantifiable outcome

• Live as a decentralized oracle network since 2019 (over 6 years of continuous operation at the time of writing).
• +2 more outcomes

Named customers8 records

Segments5 records

Ideal customer profiles4 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature8 records

Partnerships

15 partnerships are on record, tiered flagship integrator, core integrator, core partner, flagship chain deployment and core chain deployment.

• Liquityflagship integratorTechnology or IntegrationDecentralized lending protocol that integrates Tellor as a price oracle for its interest rate and redemption mechanisms.
• Ampleforthflagship integratorTechnology or IntegrationElastic supply token protocol that uses Tellor as a price oracle for its daily rebasing supply adjustment.
• Raftcore integratorTechnology or IntegrationDeFi protocol listed on Tellor's integrations page that uses Tellor oracle data.
• Ethoscore integratorTechnology or IntegrationDeFi protocol listed on Tellor's integrations page that integrates Tellor oracle feeds.
• Reflexer (RAI)flagship integratorTechnology or IntegrationRAI stablecoin protocol that uses Tellor for reference price data feeding its stability mechanism.
• DIVA Protocolcore integratorTechnology or IntegrationPrediction market protocol that uses Tellor oracle data for outcome settlement.
• Encode Clubcore partnerGTM or Marketing PartnerEncode Club runs bootcamps, workshops, and educational programs in partnership with Tellor to onboard new developers and projects to the Tellor oracle stack.
• Polygonflagship chain deploymentTechnology or IntegrationTellor oracle contracts are deployed on Polygon (including upgrades such as Tellor360 on Mumbai/Polygon), making Polygon a core supported chain.
• Arbitrumflagship chain deploymentTechnology or IntegrationTellor oracle contracts are deployed on the Arbitrum L2 network.
• Optimismflagship chain deploymentTechnology or IntegrationTellor oracle contracts are deployed on the Optimism L2 network.
• Gnosis Chainflagship chain deploymentTechnology or IntegrationTellor oracle contracts are deployed on Gnosis Chain; the project also migrated its team multisig to Safe on Gnosis.
• Filecoincore chain deploymentTechnology or IntegrationTellor oracle contracts are deployed on the Filecoin network.
• Polygon zkEVMcore chain deploymentTechnology or IntegrationTellor oracle contracts are deployed on Polygon zkEVM.
• Algorandcore chain deploymentTechnology or IntegrationTellor announced a launch of oracle support on the Algorand network.
• Sepolia (Ethereum testnet)core chain deploymentTechnology or IntegrationTellor oracle contracts are deployed on the Sepolia Ethereum testnet for development and testing.

Scale indicators6 records

Recent moves21 records

Expansion highlights5 records

Direct peers

• Chainlink: Chainlink is the dominant decentralized oracle network, providing price feeds and off-chain data to smart contracts across DeFi, with the largest validator set and the deepest integration footprint. It is Tellor's most direct competitor across virtually every DeFi use case.
• Pyth Network: Pyth is a high-frequency oracle network aggregating first-party publisher data from exchanges and market makers, originally focused on Solana and now expanding cross-chain. It competes with Tellor for price-feed workloads in DeFi derivatives and perps.
• API3: API3 is a first-party oracle network that uses Airnodes to let API providers push data on-chain directly, focusing on transparency and removing intermediary middleware. It targets the same DeFi and Web3 customer base as Tellor.
• Band Protocol: Band Protocol is a cross-chain oracle network, originally built on Cosmos SDK, aggregating and connecting real-world data to smart contracts. Its Cosmos-native architecture and oracle focus make it a direct technical and product peer to Tellor's Tellor Layer.
• UMA Protocol: UMA is an optimistic oracle that uses a dispute mechanism and human voters to resolve arbitrary off-chain data points, similar in spirit to Tellor's disputable values monitor. It targets the same customizable, non-price-data use cases like insurance and prediction markets.
• DIA (Decentralized Information Asset): DIA is an open-source, cross-chain oracle providing verified price feeds and market data to DeFi applications. It overlaps with Tellor's permissionless oracle model and custom-data focus.

Emerging players

• RedStone Finance: RedStone is an emerging modular oracle focused on EVM and non-EVM chains (notably Arweave, Starknet, and various L2s) with pull-based and push-based feed models. It targets multi-chain DeFi integrations in similar ecosystems to Tellor.
• Supra (SupraOracles): Supra is a verticalized L1+oracle stack combining a high-throughput blockchain with cross-chain oracle services. While broader in scope, its oracle component competes for the same multi-chain DeFi workloads that Tellor targets.
• Witnet: Witnet is a decentralized oracle network that uses a proof-of-eligibility consensus to fetch and attest to off-chain data, with a focus on permissionless data requests. It overlaps with Tellor's permissionless, custom-query model.
• Chronicle Protocol: Chronicle is a decentralized oracle originally spun out of MakerDAO, focused on low-cost, cryptographically verified data feeds for EVM chains. It is an emerging competitor in the same DeFi price-feed market where Tellor is integrated.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks7 records

Key highlights7 records

Customer concentration

• Xx.com/WeAreTellor
• GitHubgithub.com/tellor-io
• YouTubeyoutube.com/tellor

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Subsidiaries1 record

Funding overview

Funding rounds3 records

Investors2 records

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Tellor