Blocknative

developer tools 10 tools available

Blocknative provides real-time mempool monitoring and transaction management tools for public blockchains.

About this integration

Connect Blocknative to Definable to triage issues, review pull requests, monitor builds. Personas call Blocknative's 10 tools directly from chat or scheduled flows. Wire it into a triage, review, or release-management persona — every action runs scoped, reviewable, and logged.

Connect Blocknative to Definable and it becomes a set of typed tools your agents plan with — triggered by events, run on schedules, or invoked mid-conversation. Every write is checked by the verifier before it lands.

Auth OAuth2 · 2 clicks

Tools 10 exposed

Plans All, incl. Free

Data Never trained on

Blocknative · in workflows

What teams actually run.

Three patterns teams run with Blocknative on day one. Each one is a plain-English prompt — no canvas, no glue code — and you can remix them into anything.

Triage incoming issues

│ Webhook fires on every new issue

│ Persona summarises and labels it

└ Assigns the right engineer

Auto-review PRs

│ Pull the diff

│ Run a code-review persona

└ Post structured feedback as PR comment

Failing-build alerts

│ CI sends a failure event

│ Agent inspects logs and stack trace

└ Drops a debug summary in Slack

10 tools available

The Blocknative toolbox.

Every Blocknative capability your agents can call, each with a typed schema the planner reads. The router picks the right tool per step; the verifier checks the result.

Configure Mempool Filters

Tool to configure filters and ABI decoding for Ethereum mempool transactions. Use after establishing a Blocknative WebSocket connection to set up event filters and decoding.

Get Gas Price Distribution

Tool to retrieve the current mempool gas price distribution breakdown. Use when analyzing gas price trends or preparing fee strategies.

Get Gas Oracles

Tool to retrieve metadata on supported gas oracles per chain. Use when you need to dynamically discover all available on-chain gas estimation oracles across networks.

Get Gas Prices

Tool to fetch gas price estimates for specific inclusion probabilities. Use when you need gas price ranges for the next block or next ~10 seconds.

Get Supported Chains

Tool to retrieve supported chains metadata. Use when discovering available networks for Blocknative gas services.

Get Base Fee Estimates

Get real-time gas fee predictions for Ethereum mainnet's next 5 blocks. Returns base fee, blob base fee, and priority fee estimates at multiple confidence levels (99% and 50%). Essential for optimizing transaction costs and timing. Predictions include current block context (block number, time since last block) and estimated fees in gwei.

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. Returns the WebSocket URL and subscription message payload needed to establish the connection and start receiving event notifications for a specific transaction hash or account address on any supported blockchain.

Subscribe Transaction Hash

Tool to subscribe to transaction state change events of an Ethereum transaction hash. Use after establishing a Blocknative WebSocket connection to prepare the subscription message.

Unsubscribe Multichain

Tool to unsubscribe from events across multiple chains using the Multichain SDK. Use after stopping monitoring of an address or transaction to clean up resources, e.g., call: blocknative.unsubscribe({ id: '0x..', chainId: '0x1' }).

Unsubscribe Transaction Hash

Tool to unsubscribe from transaction state change events for an Ethereum transaction hash. Use after establishing a Blocknative WebSocket connection to prepare the unsubscription message.

See it run

One prompt, start to finish.

A real prompt, the Blocknative tools it calls, and what comes back. This is the whole interface — describe the outcome, agents handle the rest.

❯

Run a real Blocknative task end-to-end — plan it, execute across the API, and hand back a verified result.

blocknative.configure_mempool_filters Tool to configure filters and ABI decoding for Ethereum mempool transactions. Use after es

blocknative.get_gas_price_distribution Tool to retrieve the current mempool gas price distribution breakdown. Use when analyzing

blocknative.get_gas_oracles Tool to retrieve metadata on supported gas oracles per chain. Use when you need to dynamic · verified

done

Done. Blocknative responded across 3 calls, the verifier signed off, and the result is logged with every payload.

FAQ · Blocknative

Questions, answered.

What teams ask before connecting Blocknative.

01 What can I automate with Blocknative on Definable?

Anything Blocknative exposes through its API. Common developer tools workflows on Definable include triage issues, review pull requests, monitor builds. Personas can call any of the 10 Blocknative tools directly, then chain the result into another integration without you writing code.

02 How does Blocknative authentication work?

Blocknative uses API_KEY on Definable. You connect once from the integrations page, scoped to the permissions you choose, and from then on any persona that has the integration enabled can act on your behalf. Tokens are encrypted at rest and rotated automatically.

03 Is the Blocknative integration included in my Definable plan?

Yes — every Definable plan, including Starter, includes access to all 10 Blocknative tools. You only need a separate Blocknative subscription if Blocknative itself charges per seat or per API call.

04 Is using Blocknative through Definable secure?

Every call from a persona to Blocknative is logged with the user, persona, prompt, and response. Tokens never leave Definable's secrets vault, scopes are configurable per persona, and you can revoke access at any time from the integration page.

05 How do I get started with Blocknative on Definable?

Sign up for Definable, open the integrations page, find Blocknative, and connect via OAuth or API key. You can immediately attach Blocknative to any persona and start running workflows. The free Starter plan includes 5,000 credits/month.

06 What Blocknative actions does Definable expose?

Definable exposes all 10 Blocknative actions as callable tools — including `Configure Mempool Filters`, `Get Gas Price Distribution`, `Get Gas Oracles`, plus 7 more. Each tool gets a typed parameter schema so personas know exactly how to call it.