Abstract API MCP by usefulapi

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Validate emails, phones, IBAN, VAT; look up IPs and companies; rates, holidays, time via Abstract.

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Copy this into your MCP client config:

{
  "mcpServers": {
    "Abstract API MCP by usefulapi": {
      "url": "https://abstract-api.usefulapi.io/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (14)

• abstractapi_validate_email read-only

  Check one email address: deliverability (format, MX, SMTP), quality score, free/disposable/role/catch-all flags, sender details and known data breaches. Email Reputation API. Spends 1 credit of your Email Reputation plan per request (a failed request counts too); needs the Email Reputation API key.

  Parameters:

  • email (required) — string — The email address to check, e.g. [email protected].

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• abstractapi_lookup_phone read-only

  Validate and enrich one phone number: format, carrier, line type (mobile, landline, VoIP), location, line status, risk and known breaches. Phone Intelligence API. Spends 1 credit of your Phone Intelligence plan per request (a failed request counts too); needs the Phone Intelligence API key.

  Parameters:

  • phone (required) — string — The phone number, ideally with the international prefix, e.g. +14155550100.
  • country — string — Two-letter country code of the number, only needed when the number has no international prefix.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• abstractapi_lookup_ip read-only

  Geolocation and security intelligence for one IPv4 or IPv6 address: VPN/proxy/Tor/hosting/abuse flags, ASN, company, location, timezone, flag and currency. IP Intelligence API. An explicit ip_address is required (without one Abstract would look up the caller's own address, which here is this server's). Spends 1 credit of your IP Intelligence plan per request (a failed request counts too); needs the IP Intelligence API key.

  Parameters:

  • ip_address (required) — string — The IPv4 or IPv6 address to look up. Required.
  • fields — string — Only these top-level sections, e.g. location,security (security, asn, company, domains, location, timezone, flag, currency).

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• abstractapi_enrich_company read-only

  Firmographic data for a company web domain: name, description, logo, address, industry (SIC/NAICS), employee and revenue ranges, contacts, social profiles, technologies. Company Enrichment API. Spends 1 credit of your Company Enrichment plan per request (a failed request counts too); needs the Company Enrichment API key.

  Parameters:

  • domain (required) — string — The company's domain, e.g. airbnb.com (a pasted URL is reduced to its domain).
  • fields — string — Only these top-level keys, e.g. company_name,industry,employee_range.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• abstractapi_validate_iban read-only

  Check the structure and check digits of one International Bank Account Number. It does not prove that the account exists. IBAN Validation API. Spends 1 credit of your IBAN Validation plan per request (a failed request counts too); needs the IBAN Validation API key.

  Parameters:

  • iban (required) — string — The IBAN, with or without spaces.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• abstractapi_validate_vat read-only

  Check whether a VAT number is valid and, if it is, return the registered company name and address. VAT Validation API. Spends 1 credit of your VAT Validation plan per request (a failed request counts too); needs the VAT Validation API key.

  Parameters:

  • vat_number (required) — string — The VAT number including the two-letter country prefix, e.g. SE556656688001.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• abstractapi_calculate_vat read-only

  Work out the VAT-compliant price for an amount in a country: the amounts without and with VAT, the VAT amount and the rate. Set is_vat_incl to true for the reverse calculation (the amount already contains VAT). VAT Validation API. Spends 1 credit of your VAT Validation plan per request (a failed request counts too); needs the VAT Validation API key.

  Parameters:

  • amount (required) — number — The amount to calculate from.
  • country_code (required) — string — Two-letter country code of the transaction, e.g. DE.
  • is_vat_incl — boolean — True if the amount already includes VAT (default false).
  • vat_category — string — A reduced-rate category from abstractapi_list_vat_rates (default: the standard rate).

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• abstractapi_list_vat_rates read-only

  The latest VAT rates of one country: the standard rate and each reduced-rate category with its description. VAT Validation API. Abstract answers this endpoint without checking the key and may not count it as a credit; this tool still needs the VAT API key.

  Parameters:

  • country_code (required) — string — Two-letter country code, e.g. DE.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• abstractapi_get_exchange_rates read-only

  Latest foreign-exchange and cryptocurrency rates for a base currency against one or more targets (all supported currencies if none is given). Exchange Rates API. Spends 1 credit of your Exchange Rates plan per request (a failed request counts too); needs the Exchange Rates API key.

  Parameters:

  • base (required) — string — Base currency, ISO 4217 code, e.g. USD.
  • target — string — Target currencies separated by commas, e.g. EUR,GBP,JPY. Omit for all.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• abstractapi_convert_currency read-only

  Convert an amount from a base currency to one target currency, at the latest rate or at the rate of a past date. Exchange Rates API. Spends 1 credit of your Exchange Rates plan per request (a failed request counts too); needs the Exchange Rates API key.

  Parameters:

  • base (required) — string — Currency to convert from, e.g. USD.
  • target (required) — string — Currency to convert to, e.g. EUR (one currency).
  • date — string — A past date, yyyy-mm-dd (default: the latest rate).
  • base_amount — number — Amount of the base currency (default 1).

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• abstractapi_get_historical_rates read-only

  Exchange rates of a base currency on a past date. Abstract lists this endpoint as closed beta: a key may be refused (HTTP 401/403) until Abstract enables it. Exchange Rates API. Spends 1 credit of your Exchange Rates plan per request (a failed request counts too); needs the Exchange Rates API key.

  Parameters:

  • base (required) — string — Base currency, e.g. USD.
  • date (required) — string — The past date, yyyy-mm-dd.
  • target — string — Target currencies separated by commas. Omit for all.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• abstractapi_get_holidays read-only

  Public, local and religious holidays of a country for a date, a month or a year. Free Abstract plans require year, month and day together; paid plans default missing values to today. Public Holidays API. Spends 1 credit of your Public Holidays plan per request (a failed request counts too); needs the Public Holidays API key.

  Parameters:

  • country (required) — string — Two-letter country code, e.g. SG.
  • day — integer — Day of the month 1-31 (needs month and year).
  • year — integer — Year, e.g. 2026.
  • month — integer — Month 1-12.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• abstractapi_get_current_time read-only

  The current local date, time and timezone (name, abbreviation, GMT offset, daylight saving) of a place, coordinates or IP address. Timezone API. Spends 1 credit of your Timezone plan per request (a failed request counts too); needs the Timezone API key.

  Parameters:

  • location (required) — string — A place name (e.g. Oxford, United Kingdom), latitude,longitude coordinates, or an IP address.

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

• abstractapi_convert_time read-only

  Convert a date and time from one location to another (places, coordinates or IP addresses). Without base_datetime the current time is converted. Timezone API. Spends 1 credit of your Timezone plan per request (a failed request counts too); needs the Timezone API key.

  Parameters:

  • base_location (required) — string — The location the time belongs to.
  • target_location (required) — string — The location to convert the time into.
  • base_datetime — string — The time to convert, yyyy-mm-dd hh:mm:ss in the base location (default: now).

  Hints: read-only yes · destructive no · idempotent yes · open-world yes

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