We do not issue or manage API keys for external providers such as CoinMarketCap, DefiLlama, CryptoNews API, CryptoQuant, and Tavily. API key creation, permissions, pricing, and availability are controlled by each provider and may change over time.
How to get an API key for an MCP server
Identify which external provider the MCP server uses, such as CoinMarketCap, DefiLlama, CryptoNews API, CryptoQuant, or Tavily.
Open the provider’s official website or API documentation.
Sign in or create an account with that provider, if required.
Generate an API key from your provider account or developer settings.
Copy the API key and paste it into the MCP server configuration field.
Save your changes and test the connection.
Important:
API keys for MCP servers come from the external provider, not from us.
Some providers offer free API access, while others require a paid plan, trial, or approval. DefiLlama’s site, for example, distinguishes between public API access and Pro/API plans.
Available endpoints, permissions, and rate limits depend on the provider.
Provider setup steps may change without notice, so always check the provider’s latest official documentation.
Official provider resources
CoinMarketCap
Use CoinMarketCap’s official API or account pages to review API access and generate credentials if available.DefiLlama
Use DefiLlama’s official API and subscription pages to review access options and generate credentials if needed.CryptoNews API
Use CryptoNews API’s official website or documentation to create and manage API access.CryptoQuant
Use CryptoQuant’s official API documentation or account settings to create and manage API access.Tavily
Use Tavily’s official documentation or account settings to create and manage your API key.
FAQ
Where do I find the API key page?
Go to the provider’s official API documentation, developer portal, or account settings page. If the provider recently changed its interface, use the provider’s own help resources.
Why is my API key not working?
Check that:
the key was copied fully
the correct plan or API access is enabled
the provider has granted access to the required endpoints
the key was pasted into the correct MCP server field
Why is the provider asking me to upgrade?
Some providers require a paid plan for API access or higher rate limits. This is controlled by the provider, not by us. DefiLlama’s documentation, for example, points users to Pro/API plans for additional access.
Need help?
If the MCP server setup field is unclear in our product, contact support and include:
the MCP server name
the provider name
the error message you see
a screenshot of the setup field or error, if available
If you need help generating the API key itself, contact the external provider directly.