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OpenZeppelin Defender Alternative

BlackTide vs OpenZeppelin Defender

OpenZeppelin Defender is being deprecated in July 2026. Migrate your smart contract event monitoring and security alerts to BlackTide-same functionality with more comprehensive blockchain support (24 chains vs. EVM-only).

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OpenZeppelin Defender will be sunset on July 1, 2026. Plan your migration now to avoid service disruption.

24 chainsEVM + Cosmos + Cardano
$19/moFull Web3 stack
AI SRE AgentDetect & fix incidents

The complete smart contract monitoring platform - with uptime and AI incident response included

Migrating from OpenZeppelin Defender?

OpenZeppelin Defender is shutting down on July 1, 2026. Migrate before it’s too late.

BlackTide covers all Defender monitoring use cases and adds traditional uptime monitoring, multi-chain support (Cosmos, Cardano), and an AI SRE Agent.

  1. Export your Defender monitor configurations
  2. Create a BlackTide account (free, 60 seconds)
  3. Set up Contract Event monitors with the same ABIs
  4. Configure Whale Wallet alerts for the same addresses
  5. Set up incident escalation and on-call schedules
Start migration

BlackTide vs OpenZeppelin Defender

Feature-by-feature comparison for smart contract monitoring teams

FeatureBlackTideOpenZeppelin Defender
core
Smart Contract EventsYesYes
HTTP / API Uptime MonitoringYesNo
DNS / TLS / Heartbeat ChecksYesNo
web3
Whale Wallet TrackingYesAutotask-based
Gas Price Monitoring (8 EVM chains)YesNo
DeFi Protocol Health (TVL, APY)YesNo
Liquidation Risk AlertsYesNo
Bridge Cross-chain TrackingYesNo
Cosmos SDK Chains (10 chains)YesNo
Cardano + Midnight SupportYesNo
incident
Incident Management + On-callYesBasic
Public Status PagesYesNo
AI SRE Agent (auto-remediation)YesNo
pricing
Platform StatusLive & GrowingSunsetting July 2026
Starting Price$19/moFree (sunsetting)
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Which tool is right for you?

An honest look at where each tool shines.

Choose BlackTide if…

  • You need smart contract monitoring to continue after July 2026
  • You want to consolidate uptime + Web3 monitoring in one tool
  • You need Cosmos, Cardano, or Midnight chain support
  • You want AI-powered incident response built in
  • You need traditional HTTP/DNS/TLS monitoring alongside Web3

Choose OpenZeppelin Defender if…

  • You are using Defender today and have not migrated yet (act now)
  • You only need the OpenZeppelin open-source replacement tools

Pricing comparison

BlackTide vs OpenZeppelin Defender - what you get at each tier.

TierBlackTideOpenZeppelin Defender
Free tier5 monitors + 7-day historyWas free (sunsetting Jul 2026)
Pro$49/mo - unlimited monitors-
EnterpriseCustom-

Frequently asked questions

When is OpenZeppelin Defender shutting down?
OpenZeppelin Defender is shutting down on July 1, 2026. All users need to migrate to alternative platforms before that date.
Does BlackTide support the same smart contract event monitoring as Defender?
Yes. BlackTide's Contract Event monitor supports custom ABI definitions and event filtering, covering the main Defender monitoring use case. You can configure multiple contracts per monitor and receive alerts via Slack, Discord, PagerDuty, or email.
Can I migrate from Defender to BlackTide without losing monitoring coverage?
Yes. The migration process takes about 30 minutes: export your Defender monitor configs, recreate them as BlackTide Contract Event monitors using the same ABI and address, then set up your alert channels. BlackTide's setup wizard walks you through each step.
Does BlackTide support Ethereum mainnet and testnets?
Yes. BlackTide supports Ethereum mainnet, Sepolia testnet, and 22 other chains including all major EVM chains, 10 Cosmos SDK chains, Cardano, and Midnight.
How is BlackTide priced compared to Defender?
Defender was free but is shutting down. BlackTide's free tier includes 5 monitors with 7-day history. The Pro plan at $49/month includes unlimited monitors, Web3 monitoring, incident management, and the AI SRE Agent.

More comparisons

See how BlackTide stacks up against other tools.