Bring Web3
to CrewAI
Learn how to connect Tatum (Blockchain Infra) to CrewAI and start using 11 AI agent tools in minutes. Fully managed, enterprise secure, and ready to use without writing a single line of code.
GDPR Free for SubscribersCompatible with every major AI agent and IDE
Gemini
What is the Tatum (Blockchain Infra) MCP Server?
Connect your Tatum account to any AI agent to streamline blockchain infrastructure management. Access real-time data, gas estimates, and portfolio tracking across 40+ protocols through natural language.
What you can do
- Fee Estimation — Get recommended fees or estimate gas for EVM transactions to optimize costs using
get_recommended_feeandestimate_evm_gas. - Portfolio Tracking — Retrieve balances for native assets, ERC-20 tokens, and NFTs across multiple addresses with
get_wallet_portfolio. - Real-time Monitoring — Create and manage webhook subscriptions for incoming/outgoing transactions using
create_subscriptionandlist_subscriptions. - Transaction History — Query detailed historical data for specific blockchain addresses via
get_transaction_history. - Exchange Rates — Get live exchange rates between crypto and fiat currencies using
get_exchange_rate.
How it works
- Subscribe to this server
- Enter your Tatum API Key
- Start querying blockchain data from Claude, Cursor, or any MCP-compatible client
Who is this for?
- Web3 Developers — Quickly estimate gas and debug transactions without leaving the IDE
- DeFi Analysts — Monitor portfolios and exchange rates in real-time through conversation
- Ops Teams — Automate webhook management for blockchain event monitoring
Built-in capabilities (11)
Cancel a webhook subscription
). Create a webhook subscription
Create a virtual account (off-chain ledger)
Estimate EVM gas limit and price
). Estimate transaction fee
Get exchange rate for a crypto or fiat asset
Get recommended fee for a blockchain
Get transaction history for an address
Get virtual account balance
Get wallet portfolio balances
List active webhook subscriptions
Why CrewAI?
When paired with CrewAI, Tatum (Blockchain Infra) becomes a first-class tool in your multi-agent workflows. Each agent in the crew can call Tatum (Blockchain Infra) tools autonomously, one agent queries data, another analyzes results, a third compiles reports, all orchestrated through Vinkius with zero configuration overhead.
- —
Multi-agent collaboration lets you decompose complex workflows into specialized roles, one agent researches, another analyzes, a third generates reports, each with access to MCP tools
- —
CrewAI's native MCP integration requires zero adapter code: pass Vinkius Edge URL directly in the
mcpsparameter and agents auto-discover every available tool at runtime - —
Built-in task delegation and shared memory mean agents can pass context between steps without manual state management, enabling multi-hop reasoning across tool calls
- —
Sequential and hierarchical crew patterns map naturally to real-world workflows: enumerate subdomains → analyze DNS history → check WHOIS records → compile findings into actionable reports
Tatum (Blockchain Infra) in CrewAI
Tatum (Blockchain Infra) and 4,000+ other MCP servers. One platform. One governance layer.
Teams that connect Tatum (Blockchain Infra) to CrewAI through Vinkius don't need to source, host, or maintain individual MCP servers. Every tool call runs inside a hardened runtime with credential isolation, DLP, and a signed audit chain.
Raw MCP | Vinkius | |
|---|---|---|
| Server catalog | Find and host yourself | 4,000+ managed |
| Infrastructure | Self-hosted | Sandboxed V8 isolates |
| Credential handling | Plaintext in config | Vault + runtime injection |
| Data loss prevention | None | Configurable DLP policies |
| Kill switch | None | Global instant shutdown |
| Financial circuit breakers | None | Per-server limits + alerts |
| Audit trail | None | Ed25519 signed logs |
| SIEM log streaming | None | Splunk, Datadog, Webhook |
| Honeytokens | None | Canary alerts on leak |
| Custom domains | Not applicable | DNS challenge verified |
| GDPR compliance | Manual effort | Automated purge + export |
Why teams choose Vinkius for Tatum (Blockchain Infra) in CrewAI
The Tatum (Blockchain Infra) MCP Server runs on Vinkius-managed infrastructure inside AWS — a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts. All 11 tools execute in hardened sandboxes optimized for native MCP execution.
Your AI agents in CrewAI only access the data you authorize, with DLP that blocks sensitive information from ever reaching the model, kill switch for instant shutdown, and up to 60% token savings. Enterprise-grade infrastructure, zero maintenance.
* Every MCP server runs on Vinkius-managed infrastructure inside AWS - a purpose-built runtime with per-request V8 isolates, Ed25519 signed audit chains, and sub-40ms cold starts optimized for native MCP execution. See our infrastructure
How Vinkius secures
Tatum (Blockchain Infra) for CrewAI
Every tool call from CrewAI to the Tatum (Blockchain Infra) MCP Server is protected by DLP redaction, cryptographic audit chains, V8 sandbox isolation, kill switch, and financial circuit breakers.
Frequently asked questions
Can I estimate gas for a specific EVM transaction before sending it?
Yes! Use the estimate_evm_gas tool by providing the chain, sender, recipient, and amount. It will return the estimated gas limit and price for that specific interaction.
How do I monitor a wallet for new incoming transactions automatically?
You can use the create_subscription tool to set up a webhook. This allows you to receive real-time notifications whenever a transaction occurs on the specified address and chain.
Can I check balances for multiple token types at once?
Yes, the get_wallet_portfolio tool allows you to specify token types like 'native', 'fungible' (ERC-20), and 'nft' to get a comprehensive view of an address's holdings.
How does CrewAI discover and connect to MCP tools?
CrewAI connects to MCP servers lazily. when the crew starts, each agent resolves its MCP URLs and fetches the tool catalog via the standard tools/list method. This means tools are always fresh and reflect the server's current capabilities. No tool schemas need to be hardcoded.
Can different agents in the same crew use different MCP servers?
Yes. Each agent has its own mcps list, so you can assign specific servers to specific roles. For example, a reconnaissance agent might use a domain intelligence server while an analysis agent uses a vulnerability database server.
What happens when an MCP tool call fails during a crew run?
CrewAI wraps tool failures as context for the agent. The LLM receives the error message and can decide to retry with different parameters, fall back to a different tool, or mark the task as partially complete. This resilience is critical for production workflows.
Can CrewAI agents call multiple MCP tools in parallel?
CrewAI agents execute tool calls sequentially within a single reasoning step. However, you can run multiple agents in parallel using process=Process.parallel, each calling different MCP tools concurrently. This is ideal for workflows where separate data sources need to be queried simultaneously.
Can I run CrewAI crews on a schedule (cron)?
Yes. CrewAI crews are standard Python scripts, so you can invoke them via cron, Airflow, Celery, or any task scheduler. The crew.kickoff() method runs synchronously by default, making it straightforward to integrate into existing pipelines.
MCP tools not discovered
Ensure the Edge URL is correct. CrewAI connects lazily when the crew starts. check console output.
Agent not using tools
Make the task description specific. Instead of "do something", say "Use the available tools to list contacts".
Timeout errors
CrewAI has a 10s connection timeout by default. Ensure your network can reach the Edge URL.
Rate limiting or 429 errors
Vinkius enforces per-token rate limits. Check your subscription tier and request quota in the dashboard. Upgrade if you need higher throughput.
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