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Connect Ankr Web3 Node API to ChatGPT, Claude and Gemini

Set it up once and it works in ChatGPT, Claude, Cursor, and any other client you love. It all runs safely in the background, so you can relax and focus on what really matters. Your AI agent reads and analyzes any EVM chain data.

Ask AI about this Connector

Developed, maintained, and hosted by Vinkius.

MCP VERIFIED · PRODUCTION READY · VINKIUS GUARANTEED

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Works with modern AI clients that support MCP, including ChatGPT, Claude, Cursor, and more.

ChatGPTClaudeCursorPerplexityGeminiMicrosoft CopilotRaycastMeta AI

Your AI does the work. We keep it safe and sound.

No other AI tool gives you this. Your workflow runs in the client you already love, your account stays protected, and you decide what the agent can and cannot do. It is the whole reason to make the switch.

Each Connector lives inside our infrastructure, the same place where your workflow runs. The three things below are already part of it, working quietly in the background so you never have to think about them. Nothing to add, nothing to set up, nothing to worry about.

A futuristic MCP client docking bay
V8 Isolate01

Each Connector runs inside its own sealed environment.

Each Connector runs inside its own sealed V8 runtime — no access to your files, your system, or other servers. A Connector never sees past its own request.

Kill Switch02

One switch stops every agent. Instantly.

One action deactivates every Connector, revokes every token, and ends every session at once. AI Governance keeps the record.

FinOps per User03

Spending limits that pause instead of surprise.

Every user keeps their own connections and credentials, isolated from everyone else. Anything that would cross your spending limit is held for your approval, not billed.

Three controls, built into the layer your AI connects through.

Curated set · 32 capabilities

We ship only the actions that matter.

Capability set01 / 08

01-04

4 capabilities in this set.

Part of 32 available through Ankr.

  1. 01

    Eth getTransactionByHash

    Returns all details associated with a transaction hash.

  2. 02

    Ankr getInteractions

    Lists all blockchains a specific wallet has interacted with.

  3. 03

    Ankr getNFTMetadata

    Retrieves the metadata for a specific NFT.

  4. 04

    Ankr getTokenPrice

    Returns the current USD price of a given token.

Capability set02 / 08

05-08

4 capabilities in this set.

Part of 32 available through Ankr.

  1. 05

    Eth estimateGas

    Calculates the estimated gas required for a transaction.

  2. 06

    Eth getCode

    Returns the compiled code stored at a given contract address.

  3. 07

    Eth getTransactionReceipt

    Returns the final receipt confirming a transaction's outcome.

  4. 08

    Eth sendRawTransaction

    Submits a signed transaction directly to the network.

Capability set03 / 08

09-12

4 capabilities in this set.

Part of 32 available through Ankr.

  1. 09

    GetAccountInfo

    Returns all available information tied to a specific public key.

  2. 10

    GetBlock

    Returns the identity and transaction details for a confirmed block.

  3. 11

    GetTransaction

    Gets detailed information for a confirmed transaction.

  4. 12

    Eth blockNumber

    Returns the most recent block number on the network.

Capability set04 / 08

13-16

4 capabilities in this set.

Part of 32 available through Ankr.

  1. 13

    Ankr getTokenTransfers

    Returns historical data detailing token transfers.

  2. 14

    Eth getBlockByHash

    Returns full block information using a specific block hash.

  3. 15

    Eth getBalance

    Returns the current balance of a specified address.

  4. 16

    Eth getBlockByNumber

    Returns full block information using a block number.

Capability set05 / 08

17-20

4 capabilities in this set.

Part of 32 available through Ankr.

  1. 17

    Eth getTransactionCount

    Returns the transaction count (nonce) for an address.

  2. 18

    GetBlockHeight

    Returns the current block height

  3. 19

    SimulateTransaction

    Simulates a transaction to check for errors

  4. 20

    Ankr getAccountBalance

    Retrieves all token balances held by a wallet.

Capability set06 / 08

21-24

4 capabilities in this set.

Part of 32 available through Ankr.

  1. 21

    GetLatestBlockhash

    Returns the latest blockhash for transaction building

  2. 22

    Ankr getBlocks

    Retrieves full information for a specified range of blocks.

  3. 23

    Ankr getNFTHolders

    Lists all addresses that hold a specific NFT collection.

  4. 24

    Ankr getNFTsByOwner

    Retrieves all NFTs owned by an address across multiple chains.

Capability set07 / 08

25-28

4 capabilities in this set.

Part of 32 available through Ankr.

  1. 25

    Eth call

    Executes a read-only call to a contract without creating a transaction.

  2. 26

    Eth getLogs

    Returns event logs that match specific filter criteria.

  3. 27

    Eth getStorageAt

    Retrieves the value stored at a specific storage position.

  4. 28

    Eth simulateV1

    Simulates multiple blocks or transactions to check outcomes.

Capability set08 / 08

29-32

4 capabilities in this set.

Part of 32 available through Ankr.

  1. 29

    GetBalance

    Returns the lamport balance of an account

  2. 30

    GetEpochInfo

    Returns information about the current epoch

  3. 31

    GetProgramAccounts

    Returns all accounts owned by a program

  4. 32

    SendTransaction

    Submits a signed transaction

Real work

What teams actually run

01

Debugging a Smart Contract

Instead of guessing, ask your AI client to run eth_call to read the contract state or use eth_getStorageAt to pinpoint where the data is stored.

02

Analyzing Token Transfers

Use ankr_getTokenTransfers to track the entire history of a token, seeing every owner and every transaction.

03

Checking Wallet Health

Quickly check an address's balance, transaction count (eth_getTransactionCount), and list all associated NFTs using ankr_getNFTsByOwner.

04

Forecasting Transaction Costs

Before sending funds, ask the MCP to estimate gas costs using eth_estimateGas to prevent unexpected failures.

Automate a task

Put Ankr to work on one thing.

Step-by-step automations your AI runs through this Connector: the workflow, the prompts to start with, and the exact capabilities behind each move.

One connector, every AI

Ankr works with the most popular AI clients.

These are the most popular clients, each with a step-by-step guide: one link, set up once, with governance and visibility built in. And because everything runs on the MCP standard, the same connection also works in any other compatible client — nothing to rebuild.

ClaudeClaudeChatGPTChatGPTGeminiGeminiPerplexityPerplexityGrokGrokMicrosoft CopilotMicrosoft CopilotCursorCursorVS CodeVS CodeWindsurfWindsurfJetBrainsJetBrainsClineClineLangChainLangChainVercel AI SDKVercel AI SDKLovableLovableZ.aiZ.aiRaycastRaycastQwen CodeQwen CodeKimi CodeKimi CodeLe ChatLe Chat

Building your own app? The connector is yours to use.

You don't need a client to put Ankr to work: the same hosted connection plugs into your own applications and agent code, with the same governance on every request. Build with it, chat with it — one connection for both.

Observed, not estimated

1054ms average. Fast in production.

Ankr is checked daily against the live service.

Daily averagePeak 1360ms
Oct 3Today
Fastest day
871ms
Slowest day
1360ms
14-day trend
Slowing+13%

Connect your client

One URL. Every client.

Activate the Connector, copy your link, and paste it into the client you already use. 32 capabilities arrive ready to run.

Preview access · not provider authentication

The vk_preview_* token belongs to Vinkius preview infrastructure. It lets Claude discover and display the capabilities of Ankr, so you can see the experience inside your AI.

It does not authenticate your account with Ankr. Actions requiring credentials or live account data may not run until you activate the Connector and authorize the service.

Ankr Connector

You're all set. Choose your MCP client and follow the setup instructions.

Connector linkhttps://edge.vinkius.com/vk_preview_ovDNKkD1boVWkgwgjN7iwXmwbTY2XG9BpJ0FYRBc/mcp

Claude Desktop

Follow the steps below to connect in seconds.

  1. 1In Claude Desktop, open Settings → Connectors.
  2. 2Click “Add custom connector” and paste the connector link above as the remote MCP server URL.
  3. 3Click Add and start a new chat — Ankr capabilities are ready to use.
Configuration · claude_desktop_config.jsonCopy
{
  "mcpServers": {
    "ankr-web3-node-api-mcp": {
      "url": "https://edge.vinkius.com/vk_preview_ovDNKkD1boVWkgwgjN7iwXmwbTY2XG9BpJ0FYRBc/mcp"
    }
  }
}
  • Claude
  • ChatGPT
  • Cursor
  • VS Code
  • Windsurf
  • Claude Code
  • JetBrains
  • Cline

Step-by-step instructions for each client are in the guide. How to connect

Guided setup for Claude? Set up Ankr in Claude and other AIs

See all the AI clients this connector works with ↑

Who it's for

Built for the work Ankr owners hand off.

This MCP is essential for anyone who needs deep, real-time data from the blockchain but doesn't want to write boilerplate API calls. It lets you interact with complex Web3 data using simple, natural language prompts, treating your AI client like a specialized blockchain data layer.

  • 01

    Web3 Developers

    Debug smart contracts, check nonces, and verify deployment status directly from your IDE.

  • 02

    DeFi Researchers

    Analyze on-chain state, simulate complex transactions, and fetch historical logs without writing custom scripts.

  • 03

    Data Analysts

    Retrieve real-time blockchain metrics and block data for reporting and market monitoring.

FAQ

Questions Ankr owners ask.

  • 01

    Does this work for all blockchain types?

    This MCP is built for EVM-compatible chains, including Ethereum. It provides a direct bridge to these networks, allowing you to query data across multiple supported chains.

  • 02

    Do I need to know the specific RPC endpoint?

    No. You simply connect your AI client to the Vinkius catalog, and the MCP handles the connection to Ankr's global node infrastructure for you.

  • 03

    Can I perform write operations?

    Yes. You can submit signed transactions using eth_sendRawTransaction or simulate them with eth_simulateV1 to check for errors before committing.

  • 04

    What is the difference between eth_call and eth_simulateV1?

    The eth_call executes a read-only query to read a contract's state. eth_simulateV1 is more powerful; it simulates multiple blocks or transactions, giving you a full outcome prediction.

  • 05

    Is this only for Ethereum?

    No. While it supports Ethereum, it connects to Ankr's global infrastructure, allowing you to interact with other EVM-compatible chains as well.

  • 06

    How can I check the current block height on a specific network?

    Use the eth_blockNumber capability and provide the chain_alias (e.g., 'eth' for Ethereum). The agent will return the most recent block number recorded on that chain.

  • 07

    Is it possible to simulate a transaction before sending it to the mainnet?

    Yes! You can use the eth_simulateV1 capability. By providing a simulation payload, you can see the potential outcome and state changes of transactions without actually broadcasting them.

  • 08

    How do I retrieve the balance of a specific wallet address?

    Simply use the eth_getBalance capability with the target address and chain_alias. The agent will fetch the current balance in Wei for that account.

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