NEWTenderly is now the simulation company for onchain operations. Model every onchain move.Read Announcement

Model every onchain
move

The simulation company for onchain operations, enabling engineering, finance, and risk teams to model every onchain action against a real, live system before any capital or customer is exposed.

TENDERLY · NETWORK MIRROR
FORKING STATE
MAINNET HEAD25,243,104
VNET HEAD25,229,226
BLOCKS BEHIND13,878 BEHIND
NETWORK SYNC STATUSSYNCING TO TIP
CAUGHT UP
Sync operationsState drift
STATE · BALANCE·+ TRACK VARIABLE
ChainlinkOracle
price()(uint256)
DIFF
0
25,229,02725,229,226
MetaMorpho
previewDeposit(uint256)
DIFF
−63.27k
25,229,02725,229,226
UniswapV3Pool
liquidity()(uint128)
DIFF
−3.96e+17
25,229,02725,229,226
AaveOracle
getAssetPrice(address)
DIFF
+1.28B
25,229,02725,229,226
Morpho
expectedTotalSupplyAssets()
DIFF
+53.73T
25,229,02725,229,226
aEthUSDT
eth_getStorageAt
DIFF
−4.20T
25,229,02725,229,226
STATE DRIFTmeasuring…
MIRRORSyncing
LIVE @ BLOCK25,229,226
MIRRORING LIVE STATEMAINNET · TRACKING 6 VARIABLES
Powering the protocols and organizations behind $50B+ in onchain value

Simulate. Validate. Execute.

The blockchain operations platform where teams work together to model every strategy, integration, and capital allocation across protocols and chains.

Core

Tenderly Console

Decode onchain activity, simulate what comes next, and operate across protocols and chains without blind spots.

01 · SIMULATE
Simulator

Validate before it touches mainnet

Preview every decision against the production state. Predict impact, model changes, prove invariants, all against the real state.

Virtual EnvironmentsSim ModeSim Bundle
02 · VALIDATE
Console

See every onchain action decoded

Decode live state across chains, protocols, and addresses. Replace block-explorer hex with operational truth.

Multichain ExplorerDecoded TransactionDebugger
03 · EXECUTE
Monitor

Detect, decide, and execute

Monitor and respond with validated actions with millisecond detection-to-response time and context for every event and trace by default.

Alerts & invariantsWeb3 ActionsIncident replay
Inputs
Protocols · Oracles · Bridges · Custody · RPCs · Wallets
Continuous
Verified outputs
Gated deployments · Simulated txs · Audit trails · Automated responses
Simulate

The simulation engine behind every onchain decision

The most advanced simulation capabilities to preview the outcome of every onchain action against your entire production environment, with full control over every parameter.

Single environment for cross-chain simulations

Configure one simulation environment for every chain you run on to validate cross-chain transfers, parameter changes, and integrations, and identify failures that only surface in production.

Mirror mode for production fidelity

Simulate how your transactions would behave with live oracle prices, synced liquidity, and updating blockchain state. Rewind to any past block or fast-forward to see how a decision plays out under different conditions.

Instant setup, zero maintenance

Spin up production-fidelity environments in seconds so engineering teams can validate any code change against real conditions, without local node setups, mock contracts, or stale testnet data.

Full control over network state

Impersonate any account, override contract and network states, and manipulate time to test custom scenarios — full access unlocked.

Private environments for limited exposure

Limit public exposure of your financial strategies, pre-release code, or new features with private verification.

Simulation bundles for multi-step flows

Recreate and debug entire flows by sequencing approvals, transfers, and protocol calls in a single bundle of interdependent steps.

Instant forks of your simulations

Fork a simulation to replicate its state at a specific point in time to continue testing what-if scenarios and enable faster iterations.

The entire stack available out-of-the-box

Bypass external dependencies with an instant faucet for test tokens, built-in debugging tools, and integrated explorers.

Explore Simulator
Analyze

The most complete visibility and execution context onchain

Get the full context behind every transaction, production issue, and unexpected financial outcome, decoded into operational insight for every team.

Granular debugging with decoded errors

Pinpoint the exact reason behind every failure, step through execution with human-readable messages, and debug at the exact line of code where the error occurred.

DeFi protocols in context

See the health of the lending protocols your product depends on, with protocol activity, liquidity movement, and position risk across chains, all in one view.

Flow of funds between addresses

Follow capital movement through any transaction across addresses, protocols, and chains, with decoded insights at every step.

Gas usage breakdowns

Inspect gas usage per function call to surface consumption patterns and optimize code to reduce unnecessary costs.

Instant validation

Dry-run fixes to onchain issues, simulating any possible outcome and impact on your product before implementing in production.

Explore Console
Operate

The full detection-to-response pipeline

Monitor every critical condition across your systems and move fast from the first signal to a verified response to contain damage at scale.

Every trigger that matters

Detect any system anomaly as it happens, including failed transactions, unusual state and balance changes, shifts in threshold values, and unexpected transfers.

Real-time notifications

Notify the right team the moment your system behaves unexpectedly with direct updates to team channels in real time.

Custom, verified responses

Validate responses and initiate custom flows to top up accounts, pause execution, and act fast when it matters most.

Explore Monitor
Collaborate

A single source of truth for every team

Give engineering, finance, and risk teams one shared collaborative environment and a consistent view of every system to operate production systems in the same context.

The same context for every team

Ensure alignment and faster issue resolution via a unified operational layer where every team has the same insight into onchain activity and system behavior.

Shared, yet private environments

Recreate issues, validate deployments, and model strategies in private environments with the same state, instead of isolated local forks.

Organization-level address labeling

Import relevant addresses to shared team projects and label them with custom names so every team can easily explore shared information.

Adjustable access control

Set role-specific permissions across your organization and enable SSO integration for secure sign-in.

Explore Console

Battle-tested platform for production systems

The simulation company powering the DeFi teams that built onchain finance.

MULTICHAIN SUPPORT BY DEFAULT
100+
SUPPORTED NETWORKS

Critical tooling for all major chains, with native support for custom precompiles for full-fidelity execution.

TRUSTED ECOSYSTEM PARTNER
50%
of top-100 DeFi protocols by onchain value

Aave, Uniswap, Morpho, Chainlink, Safe, MakerDAO, and other protocols build and use Tenderly across chains.

DEEP TRANSACTION TRACES
10M+
debugged transactions

Unmatched granularity into transaction traces with human-readable error reasoning.

FLAGSHIP SIMULATIONS
4B+
simulated transactions against live state

First to build a simulation infrastructure that replicates real onchain conditions. Every balance, oracle price, and protocol position mirrored continuously.

The systems moving trillions onchain run on Tenderly

Web3 leaders and DeFi pioneers, from protocols, custodians, oracles, wallets, and L2 foundations, operate using Tenderly's simulations.

Latest from Tenderly

What we're building, shipping, and learning. Straight from the team.

ANNOUNCEMENT

Tenderly is now the simulation company for onchain operations.

Model every onchain move.

Read the announcement
“Crypto spent fifteen years building the infrastructure to bring institutional systems onchain. They’re now here. What comes next is operating these systems at the level institutional capital demands. Tenderly gives you the operational layer for testing every outcome, validating every decision, and evaluating every risk before capital is exposed.”
Andrej Bencic
Andrej BencicCEO & Co-Founder