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Best naics code APIs

SIC Codes LookUp API

Company Data

Be able to retrieve a list of top companies that are related to any SIC code of your choice. Also, get additional information about that companies.

Free 7-Day Trial

100% uptime 513ms avg MCP ready

Tax Code Fetcher USA API

Legal & Compliance

The Tax Code Fetcher USA API delivers precise and up-to-date tax information customized for specific geographical areas across the United States.

Free 7-Day Trial

100% uptime 305ms avg MCP ready

Nation Codes and Data API

Location & Mapping

The Nation Codes and Data API provides comprehensive data on countries around the world, including codes, time zones and geolocation.

Free 7-Day Trial

100% uptime 40ms avg MCP ready

Get FIGIs Numbers by ISIN Codes API

Market Data & Trading

Be able to retrieve all the FIGIs codes related to any security based on its ISIN code.

Free 7-Day Trial

100% uptime 205ms avg MCP ready

Nigeria NRS FIRS E-Invoice Validator API

Legal & Compliance

Keyless Nigeria NRS (ex-FIRS) e-invoice validator: official UBL 2.1 XSD, Peppol BIS base rules, Nigerian TIN on both parties, per-line VAT, IRN/CSID/QR clearance blocks. Rule-coded JSON report.

Free 7-Day Trial

100% uptime 297ms avg MCP ready

NF-e XML Validator API

Legal & Compliance

Validate Brazilian NF-e / NFC-e / CT-e XML against current SEFAZ schemas — get per-element typed errors, not a cryptic rejection code.

Free 7-Day Trial

100% uptime 156ms avg MCP ready

Reliable NF-e XML Validator API

Legal & Compliance

Trust our Reliable Reliable NF-e XML Validator API for consistent and accurate validation of your NF-e XML documents to streamline your business processes.

Free 7-Day Trial

100% uptime 156ms avg MCP ready

Secure NF-e XML Validatorr API

Legal & Compliance

Ensure the highest security standards for your NF-e XML files using our Secure Secure NF-e XML Validatorr API to protect sensitive data.

Free 7-Day Trial

100% uptime 156ms avg MCP ready

Securee NF-e XML Validator API

Legal & Compliance

Protect your NF-e XML files with our Secure Securee NF-e XML Validator API, delivering robust validation while keeping your data safe from breaches.

Free 7-Day Trial

100% uptime 156ms avg MCP ready

Secure NF-e XML Validator API

Legal & Compliance

Safeguard your NF-e XML validation process with enhanced security features from our Secure Secure NF-e XML Validator API.

Free 7-Day Trial

100% uptime 157ms avg MCP ready

Brazilian NF-e XML Validator API

Legal & Compliance

Validate Brazilian NF-e XML files effortlessly, ensuring compliance and accuracy for smooth business operations.

Free 7-Day Trial

100% uptime 157ms avg MCP ready

Efficient NF-e XML Validator API

Legal & Compliance

Streamline your XML validation process with our Efficient Efficient NF-e XML Validator API, saving you time while guaranteeing compliance.

Free 7-Day Trial

100% uptime 156ms avg MCP ready

Comprehensive NF-e XML Validatorr API

Legal & Compliance

Validate NF-e XML files effortlessly with our Comprehensive Comprehensive NF-e XML Validatorr API, ensuring compliance and accuracy.

Free 7-Day Trial

100% uptime 156ms avg MCP ready

Efficient NF-e XML Validatorr API

Legal & Compliance

Streamline your XML validation process with our Efficient Efficient NF-e XML Validatorr API, saving you time while guaranteeing compliance.

Free 7-Day Trial

100% uptime 156ms avg MCP ready

Comprehensive NF-e XML Validator API

Legal & Compliance

Ensure your NF-e XML files are error-free and compliant with the Comprehensive Comprehensive NF-e XML Validator API for seamless integration.

Free 7-Day Trial

100% uptime 157ms avg MCP ready

SBA Small Business Size Standard API

Other

US SBA small-business size standards by NAICS code (13 CFR 121.201). Independent product — not affiliated with the SBA.

Free 7-Day Trial

100% uptime MCP ready

Motor Carrier Insights API

Travel & Transportation

This API delivers comprehensive and detailed information about trucking companies, offering valuable insights into their operations, fleet management, and regulatory compliance.

Free 7-Day Trial

100% uptime 708ms avg MCP ready

Nations Explorer API

Science & Education

Retrieve essential information about a country using its ISO code, including details on its economy, population, education system, environmental factors, and other key areas.

Free 7-Day Trial

100% uptime 1,457ms avg MCP ready

Noida Silver Prices API

Market Data & Trading

This API provides real-time and historical silver price data for Noida, India. Users can access current rates for different silver types, compare them with previous prices, and retrieve historical trends for financial analysis.

Free 7-Day Trial