How do I get a Covalent API Key?

Log in to your Covalent dashboard at covalenthq.com and generate an API Key. You can use the free tier to get started.

Which blockchains are supported?

Covalent supports over 100 chains including Ethereum, Polygon, BSC, Avalanche, Fantom, and many Layer 2 solutions like Arbitrum and Optimism.

Can the agent send transactions?

No, this integration is for querying data only. It provides high-granularity visibility into on-chain activities but cannot execute writes or sign transactions.

Covalent MCP Server for CrewAI 10 tools — connect in under 2 minutes

Name: Covalent
Availability: InStock
Author: Vinkius

docs.crewai.com/mcp/overview

Built by Vinkius GDPR 10 Tools Framework

Connect your CrewAI agents to Covalent through Vinkius, pass the Edge URL in the `mcps` parameter and every Covalent tool is auto-discovered at runtime. No credentials to manage, no infrastructure to maintain.

Get MCP Server for AI Agents

ASK AI ABOUT THIS MCP SERVER

Open in ChatGPT Open in Claude Open in Perplexity

Vinkius supports streamable HTTP and SSE.

python

from crewai import Agent, Task, Crew

agent = Agent(
    role="Covalent Specialist",
    goal="Help users interact with Covalent effectively",
    backstory=(
        "You are an expert at leveraging Covalent tools "
        "for automation and data analysis."
    ),
    # Your Vinkius token. get it at cloud.vinkius.com
    mcps=["https://edge.vinkius.com/[YOUR_TOKEN_HERE]/mcp"],
)

task = Task(
    description=(
        "Explore all available tools in Covalent "
        "and summarize their capabilities."
    ),
    agent=agent,
    expected_output=(
        "A detailed summary of 10 available tools "
        "and what they can do."
    ),
)

crew = Crew(agents=[agent], tasks=[task])
result = crew.kickoff()
print(result)

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<40msKill switch

Stream every event to Splunk, Datadog, or your own webhook in real-time

* 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

About Covalent MCP Server

Integrate Covalent, the unified API for blockchain data, directly into your AI workflow. Access real-time and historical data across Ethereum, Polygon, Binance Smart Chain, and over 100 other supported networks using natural language.

When paired with CrewAI, Covalent becomes a first-class tool in your multi-agent workflows. Each agent in the crew can call Covalent tools autonomously, one agent queries data, another analyzes results, a third compiles reports, all orchestrated through Vinkius with zero configuration overhead.

What you can do

Wallet Insights — Retrieve token balances, historical portfolio values, and transaction history for any wallet address.
NFT Discovery — List NFT balances and metadata across supported chains.
Transaction Auditing — Get full details and log events for specific transaction hashes.
Network Monitoring — Check block details and monitor supported chain statuses.

The Covalent MCP Server exposes 10 tools through the Vinkius. Connect it to CrewAI in under two minutes — no API keys to rotate, no infrastructure to provision, no vendor lock-in. Your configuration, your data, your control.

How to Connect Covalent to CrewAI via MCP

Follow these steps to integrate the Covalent MCP Server with CrewAI.

Install CrewAI

Run pip install crewai

Replace the token

Replace [YOUR_TOKEN_HERE] with your Vinkius token from cloud.vinkius.com

Customize the agent

Adjust the role, goal, and backstory to fit your use case

Run the crew

Run python crew.py. CrewAI auto-discovers 10 tools from Covalent

Why Use CrewAI with the Covalent MCP Server

CrewAI Multi-Agent Orchestration Framework provides unique advantages when paired with Covalent through the Model Context Protocol.

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 `mcps` parameter 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

Covalent + CrewAI Use Cases

Practical scenarios where CrewAI combined with the Covalent MCP Server delivers measurable value.

Automated multi-step research: a reconnaissance agent queries Covalent for raw data, then a second analyst agent cross-references findings and flags anomalies. all without human handoff

Scheduled intelligence reports: set up a crew that periodically queries Covalent, analyzes trends over time, and generates executive briefings in markdown or PDF format

Multi-source enrichment pipelines: chain Covalent tools with other MCP servers in the same crew, letting agents correlate data across multiple providers in a single workflow

Compliance and audit automation: a compliance agent queries Covalent against predefined policy rules, generates deviation reports, and routes findings to the appropriate team

Covalent MCP Tools for CrewAI (10)

These 10 tools become available when you connect Covalent to CrewAI via MCP:

get_block_details

Resolves block hashes, parent hashes, timestamps, and transaction counts for the specified chain. Get details for a specific block height

get_chains_status

Resolves block height lag, current sync status, and API availability across all supported networks. Get the current indexing status of all supported chains

get_dex_pools

Resolves liquidity pool addresses, token pairs, reserve amounts, and volume metrics for the specified DEX. List liquidity pools for a DEX on a specific chain

get_historical_portfolio

Resolves daily balances, asset valuations in USD, and historical price points for the specified wallet. Get historical daily portfolio value for a wallet address

get_nft_balances

Resolves NFT contract names, token IDs, metadata URLs, and image links across the specified blockchain network. Get NFT balances for a wallet address

get_token_balances

Resolves contract addresses, ticker symbols, token decimals, and current balances (formatted and raw) for the specified wallet and chain. Get token balances for a wallet address on a specific chain

get_token_transfers

Resolves sender/receiver addresses, transfer values, and transaction timestamps for the specified wallet. Get historical token transfers for a wallet address

get_transaction_details

Touches raw log events, decoded event parameters, and gas consumption metrics boundary. Get full details and logs for a specific transaction hash

get_transactions

Resolves transaction hashes, block heights, timestamps, and log events for the specified wallet on the given chain. Get transaction history for a wallet address

list_supported_chains

Resolves chain IDs, human-readable names, and supported features (NFTs, Dex, etc.) for each blockchain. List all blockchains supported by Covalent

Example Prompts for Covalent in CrewAI

Ready-to-use prompts you can give your CrewAI agent to start working with Covalent immediately.

"Show me the token balances for address '0x123...' on eth-mainnet."

"List the last 10 transactions for address '0x123...' on matic-mainnet."

"What are the NFT holdings for wallet '0x123...' on eth-mainnet?"

Troubleshooting Covalent MCP Server with CrewAI

Common issues when connecting Covalent to CrewAI through the Vinkius, and how to resolve them.

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.

Covalent + CrewAI FAQ

Common questions about integrating Covalent MCP Server with CrewAI.

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.