Does Lyro hold the Blocknative WebSocket connection open?

No. Subscribe Transaction Hash and Subscribe Multichain return the connection details and the subscription message to send; the socket itself is opened by a WebSocket client on your side. Lyro's part is composing the correct payload for the chain and target, and calling the matching unsubscribe when the watch is finished.

Are next-block fee predictions available on every chain?

Get Base Fee Estimates is documented for Ethereum mainnet's next five blocks specifically. For anything else, Lyro checks Get Supported Chains and Get Gas Oracles first, which return the networks Blocknative's gas services cover and the on-chain estimation oracles available on each of them.

How certain are the gas numbers Lyro reports?

Get Base Fee Estimates returns base, blob and priority fees at both 99% and 50% confidence, alongside the current block number and time since the last block. Get Gas Prices is framed around inclusion probability instead. Lyro says which of the two a figure came from so an estimate is not read as firmer than it is.

Can Lyro tell what a pending transaction is actually doing?

Configure Mempool Filters sets both the event filters and the ABI decoding on an established Blocknative connection, so pending Ethereum transactions arrive decoded rather than as raw calldata. Lyro composes that configuration; the ABIs it decodes against are the ones you supply.

Blocknative MCP integration

Quotes next-block gas and base fee predictions, prepares mempool and transaction subscriptions, and cleans them up when monitoring ends.

Connect Blocknative See all integrations

10actions available

Three actions you can hand over today

Every action runs live through MCP. Nothing to build, nothing to maintain.

Get gas prices
Lyro fetches real-time gas price estimates from Blocknative for specific transaction priorities. Your team decides when to execute blockchain operations based on current costs.
Subscribe transaction hash
Lyro sets up event subscriptions for an Ethereum transaction hash via Blocknative. Your team monitors critical transactions and reacts instantly when status changes.
Unsubscribe transaction hash
Lyro cancels event subscriptions for a transaction hash to clean up monitoring overhead. You stop tracking stale transactions and reduce unnecessary notifications.

See all 10 actions

How businesses use Blocknative + Lyro

Each card is one request a support team gets, and the Blocknative actions Lyro runs to close it.

Price a transaction before it is sent
Lyro returns gas prices for the next block or roughly the next ten seconds, base, blob and priority fee predictions for Ethereum's next five blocks, and the mempool distribution those numbers came from.
Get Gas PricesGet Base Fee EstimatesGet Gas Price Distribution
Watch a transaction until it settles
Lyro composes the subscription payload for a transaction hash or an account address on any supported chain and sets the mempool filters and ABI decoding, so state changes arrive decoded as they happen.
Subscribe Transaction HashSubscribe MultichainConfigure Mempool Filters
Retire a watch once monitoring is done
Lyro cancels a transaction-hash subscription or removes a multichain watch by its id and chainId, so a long-running session does not leave dead subscriptions consuming the connection.
Unsubscribe Transaction HashUnsubscribe Multichain
Check coverage before building on a network
Lyro lists the chains Blocknative's gas services support and the on-chain gas estimation oracles available on each, so a question about a less common network is settled up front.
Get Supported ChainsGet Gas Oracles

How it works

Get started in 3 steps

Connect once, then just ask. There is no workflow builder to learn and nothing to maintain — Lyro reads the Blocknative actions it has and picks the ones a request needs.

01
Connect Blocknative
Authorize the Blocknative account your team already uses — one consent screen, no API keys, no mapping tables. Lyro can only do what you granted that account, and you can disconnect it at any time.
02
Tell your agent what you need
Describe the job the way you would hand it to a teammate. Lyro maps it to the Blocknative actions that close it and chains as many as the request needs.
03
Watch it work
The agent runs the actions inside the conversation the customer is already in, so nobody copies data between tabs and your team can take over at any point.
Get started free

Blocknative · Lyro

Everything else about Blocknative

Setup, permissions, and the limits of what Lyro can do inside Blocknative.

No. Subscribe Transaction Hash and Subscribe Multichain return the connection details and the subscription message to send; the socket itself is opened by a WebSocket client on your side. Lyro's part is composing the correct payload for the chain and target, and calling the matching unsubscribe when the watch is finished.

Every action available in Blocknative

All 10 actions your agent can call on Blocknative, straight from the live MCP connection.

Configure mempool filters
Configure filters and ABI decoding for Ethereum mempool transactions.
Get gas price distribution
Retrieve the current mempool gas price distribution breakdown.
Get gas oracles
Retrieve metadata on supported gas oracles per chain.
Get gas prices
Fetch gas price estimates for specific inclusion probabilities.
Get supported chains
Retrieve supported chains metadata.
Get base fee estimates
Get real-time gas fee predictions for Ethereum mainnet's next 5 blocks.
Subscribe multichain
Generate WebSocket connection details to subscribe to real-time blockchain events (transactions or account activity) across multiple chains via Blocknative's Multichain API.
Subscribe transaction hash
Subscribe to transaction state change events of an Ethereum transaction hash.
Unsubscribe multichain
Unsubscribe from events across multiple chains using the Multichain SDK.
Unsubscribe transaction hash
Unsubscribe from transaction state change events for an Ethereum transaction hash.