Connect Blocknative to Claude, ChatGPT, Cursor, Claude Code, Codex, Gemini, GitHub Copilot and any other MCP client, for your whole team. Metorial adds security, governance, and tracing, and gives everyone one Magic MCP URL to connect.
Ask your agent in plain language. Each of these maps to a real tool on the server.
Use the decode l2 batch tool in Blocknative
Use the estimate gas price tool in Blocknative
Use the get blob tool in Blocknative
Use the list gas oracles tool in Blocknative
Use the get gas distribution tool in Blocknative
Use the predict base fee tool in Blocknative
Supported Tools
decode_l2_batch
Decode L2 Batch
Decodes an Ethereum L2 batch transaction into human-readable format. Accepts an L1 transaction hash of a batch (pending or confirmed) and returns decoded calldata and blobdata. Supports Optimism, Base, zkSync, Arbitrum, Mode, Zora, Kroma, and Blast batches.
estimate_gas_price
Estimate Gas Price
Estimates the gas price needed for a transaction to be included within the chain-specific prediction horizon. Returns confidence-based predictions for both pre-EIP-1559 (Type 0) and EIP-1559 (Type 2) transactions. Supports custom confidence levels and chain selection via chain ID or system/network identifiers. Use list_supported_chains to discover chain metadata.
get_blob
Get Blob
Retrieves archived Ethereum blob data by versioned hash. Returns the commitment, proof, byte counts, and optionally the full blob data. Stores all blobs that entered the Ethereum mempool (confirmed or not), providing access to historical blob data beyond Ethereum's ~18-day ephemeral storage window.
list_gas_oracles
List Gas Oracles
Lists all on-chain gas estimation oracle contracts supported by Blocknative. Returns metadata including oracle contract addresses by version, RPC URLs, and block explorer links for each supported chain. Useful for interacting with on-chain gas oracles directly.
get_gas_distribution
Get Gas Distribution
Retrieves the current distribution and breakdown of gas prices in the Ethereum mempool. Shows the gas prices of the top N transactions eligible for inclusion in the next block. Useful for understanding current mempool pressure and transaction pricing dynamics.
predict_base_fee
Predict Base Fee
Predicts the Ethereum base fee and blob base fee for the next 5 blocks at the confidence levels returned by the provider. Uses a quantile regression neural network model for predictions. Useful for setting optimal gas fees on Ethereum transactions.
list_supported_chains
List Supported Chains
Lists all blockchain networks supported by Blocknative with their metadata including chain ID, architecture, available features, and system/network identifiers. Use this to discover which chains are available for gas estimation and other Blocknative services.
Enable Blocknative in Metorial. In your Metorial portal, enable the Blocknative MCP server and sign in with the account that owns the data. Access stays governed by your team policies.
Add a custom connector. Open Customize, then Connectors. Select Add, then Custom, then Web.
Paste your Metorial MCP URL. Name it Metorial, paste your Magic MCP URL (<your-magic-mcp-url>) and continue.
Sign in. Select Add and sign in to load Blocknative tools.
Enable Blocknative in Metorial. In your Metorial portal, enable the Blocknative MCP server and sign in with the account that owns the data. Access stays governed by your team policies.
Add a custom MCP server. On ChatGPT web, open Plugins, select +, then Add custom MCP server.
Paste your Metorial MCP URL. Name it Metorial, paste your Magic MCP URL (<your-magic-mcp-url>), choose OAuth and accept the risk notice.
Create and install the plugin. Select Create as a plugin, install it and sign in to load Blocknative tools.
Enable Blocknative in Metorial. In your Metorial portal, enable the Blocknative MCP server and sign in with the account that owns the data. Access stays governed by your team policies.
Add Metorial to your MCP config. Use ~/.cursor/mcp.json for every project, or .cursor/mcp.json for one.
Sign in. Open Customize in the sidebar, find Metorial and sign in to load Blocknative tools.
{
"mcpServers":{
"metorial":{
"url":"<your-magic-mcp-url>"
}
}
}
Enable Blocknative in Metorial. In your Metorial portal, enable the Blocknative MCP server and sign in with the account that owns the data. Access stays governed by your team policies.
Add the server over HTTP. Add --scope user to use it in every project.
Sign in. Run /mcp, select Metorial and sign in to load Blocknative tools.
claude mcp add --transport http metorial <your-magic-mcp-url>
Enable Blocknative in Metorial. In your Metorial portal, enable the Blocknative MCP server and sign in with the account that owns the data. Access stays governed by your team policies.
Add the server and sign in. The Codex CLI, IDE extension and ChatGPT desktop app share this config.
Check the connection. Type /mcp in Codex to see Metorial and its Blocknative tools.
codex mcp add metorial --url <your-magic-mcp-url>
codex mcp login metorial
Run Blocknative through the Metorial gateway
One governed layer for every app your agents reach, not a separate connector per tool.
Give Blocknative and every other app to your whole team through one MCP gateway, behind your SSO.
Scope which teams and agents can use Blocknative tools with role-based access control, and trace every call.
Prefer to run it yourself? Metorial is open source and self-hostable.
Legacy Blocknative tools for gas fee estimates, base and blob fee predictions, mempool gas distributions, supported chain and gas oracle discovery, L2 batch decoding, and archived blob retrieval. Blocknative announced that its API services would stop after June 19, 2026; Blob Archive support ended March 1, 2025.
Frequently asked questions
Common questions about connecting Blocknative to AI agents with Metorial.
How many tools does the Blocknative MCP server have?
The Blocknative MCP server exposes 7 tools, including Decode L2 Batch, Estimate Gas Price, Get Blob. Each one is governed and traced through Metorial.
Does the Blocknative MCP server support triggers?
Blocknative exposes tools your agents call on demand; it does not publish event triggers yet. Everything still runs through one governed MCP URL.
Which AI clients can use the Blocknative MCP server?
Any MCP client, including VS Code, Windsurf, Zed, OpenCode and Grok. Each one reaches the Blocknative MCP server through the same Metorial URL.
How do I give only some teams access to Blocknative?
Use role-based access control to decide which teams, users, and agents can use Blocknative and which of its tools they can call.
Can I self-host the Blocknative MCP server?
Yes. Metorial is open source, so you can run the Blocknative MCP server yourself or use the hosted gateway.
Connect Blocknative to production AI agents
See how Metorial gives your team governed access to Blocknative, with tracing and security controls built in.