Abstract API MCP by usefulapi
RemoteAbout Abstract API MCP by usefulapi
Abstract API MCP by usefulapi is a hosted MCP server for calling Abstract API from clients such as Claude and Cursor. It provides validation, lookup, exchange-rate, holiday, and time-zone tools using the user's own API credentials and credits.
Key features
- 01Validate emails, IBANs, and VAT numbers
- 02Look up phones, IPs, and companies
- 03Retrieve rates and convert currencies
- 04Check public holidays and time
- 05View usage and manage subscriptions
Use cases
- 01Validate customer emails or tax identifiers
- 02Look up IP locations and company details
- 03Handle exchange-rate and time-zone queries
MCP support
The remote MCP server exposes Abstract API tools to clients. OAuth login uses credentials for the Abstract APIs in use, and calls consume credits from the associated plan.
Configuration
Remote servers need no local install. Pick your client, then copy the config or install in one click.
https://abstract-api.usefulapi.io/mcpclaude mcp add --transport http io-usefulapi-abstract-api https://abstract-api.usefulapi.io/mcp{"mcpServers":{"io-usefulapi-abstract-api":{"type":"http","url":"https://abstract-api.usefulapi.io/mcp"}}}Open in Cursor{"servers":{"io-usefulapi-abstract-api":{"type":"http","url":"https://abstract-api.usefulapi.io/mcp"}}}Open in VS Code{"mcpServers":{"io-usefulapi-abstract-api":{"type":"http","url":"https://abstract-api.usefulapi.io/mcp"}}}{"mcpServers":{"io-usefulapi-abstract-api":{"serverUrl":"https://abstract-api.usefulapi.io/mcp"}}}Run commands in a terminal; paste JSON into the client’s MCP config and restart. Servers that need sign-in will prompt on first connect.
Tools
14| Parameter | Type | Required | Description |
|---|---|---|---|
| string | Yes | The email address to check, e.g. [email protected]. |
Details
From the project READMEAbstract API MCP by usefulapi
Use Abstract API from Claude, Cursor, or any MCP client — email validation, phone lookup, IP geolocation, company enrichment, IBAN and VAT validation, VAT rates and calculation, exchange rates (live, conversion, historical), public holidays and time zones. Connect with the keys of the Abstract APIs you use (at least one); every call spends credits from your own plan. Hosted, no local install: connect with your own Abstract API credentials.
Live endpoint: https://abstract-api.usefulapi.io/mcp · Homepage: https://usefulapi.io/abstract-api
Connect
- Claude (claude.ai, Desktop): open Customize → Connectors, click + Add → Add custom connector, and paste
https://abstract-api.usefulapi.io/mcp. - Claude Code:
claude mcp add --transport http abstract-api https://abstract-api.usefulapi.io/mcp, then run/mcpto log in. - VS Code: Add to VS Code.
- Cursor and other clients: add the URL as a remote MCP server:
{
"mcpServers": {
"abstract-api": {
"url": "https://abstract-api.usefulapi.io/mcp"
}
}
}
Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your Abstract API credentials.
Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/abstract-api/
Tools
| Tool | Type | What it does |
|---|---|---|
abstractapi_validate_email | read | Validate email |
abstractapi_lookup_phone | read | Look up phone number |
abstractapi_lookup_ip | read | Look up IP address |
abstractapi_enrich_company | read | Enrich company |
abstractapi_validate_iban | read | Validate IBAN |
abstractapi_validate_vat | read | Validate VAT number |
abstractapi_calculate_vat | read | Calculate VAT |
abstractapi_list_vat_rates | read | List VAT rates |
abstractapi_get_exchange_rates | read | Get exchange rates |
abstractapi_convert_currency | read | Convert currency |
abstractapi_get_historical_rates | read | Get historical exchange rates |
abstractapi_get_holidays | read | Get public holidays |
abstractapi_get_current_time | read | Get current time |
abstractapi_convert_time | read | Convert time between locations |
abstractapi_usage_status | meta | Usage status (free-tier meter) |
abstractapi_request_feature | meta | Request a missing feature |
abstractapi_upgrade | meta | Upgrade to Pro (unlimited) |
abstractapi_cancel_subscription | meta | Cancel the Pro subscription |
read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.
Pricing
| Plan | Price | Limit |
|---|---|---|
| Free | $0 | 50 tool calls / month |
| Pro (per user) | $9/mo or $90/yr (2 months free) | Unlimited |
Pro covers this server only. Subscribe with abstractapi_upgrade (it returns a Stripe Checkout link). Cancel any time with abstractapi_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running abstractapi_upgrade before then undoes the cancel. Or write to [email protected].
License
MIT © usefulapi. Not affiliated with or endorsed by Abstract API.
Comments
New to MCP?
From what the protocol is to installing your first server, these answers cover most first questions.
An open protocol that defines how AI applications connect to external tools and data in a uniform way. Clients talk to the model; MCP servers provide tools, resources and prompt templates. They exchange standard messages, so one server can be reused by many clients.