Nonprofit Check Plus API by Pactman

Pros: Transparent and unbiased ratings
Easy compliance verification
Saves time with streamlined processes
Helps both donors and nonprofits equally

Cons: Interface could be a bit more user-friendly
Some features may take time to fully explore

Overall: This platform makes supporting nonprofits simple, transparent, and trustworthy. It provides clear insights into the health and impact of organizations, while also ensuring compliance checks are handled smoothly. I appreciate how it removes the guesswork and builds confidence in giving and volunteering.

Pros: The endpoints are simple enough to use but they provide well detailed information. Also there is free tier available.

Cons: There is nothing that I didn't like. It seems good.

Overall: The endpoints are simple enough to use but they provide well detailed information. Also there is free tier available.

Pros: - Super fast nonprofit checks
- Works with official government databases
- Easy for developers to use
- Free option available
- Catches potential red flags

Cons: - Only works in the U.S.
- Requires some technical skills
- Limited free checks

Overall: Perfect for teams that need to check nonprofit status fast. This API does the hard work of verifying organizations quickly and accurately.

Best For:
- Donation platforms
- Grant managers
- Compliance teams

A smart tool that saves time and reduces risk when working with nonprofits.

Pros: Really useful tool for sifting the chaff from the grains. Free tier is generous too for low volume checks

Cons: For now i can't find anything i didn't like. If i find I'll drop it here.

Overall: Easy to use. Authentication is good too. JSON Data is well laid out and easy to read and use. Nothing complicated

Pros: Developer friendly - with swagger UI (curl testing works well) (JSON response) (with good api documentations)
Free tier - good for startup
Reliable data - Used sources like OFAC, BMF etc, making it trustable and reliable
Demo key support well for multiple EINs

Cons: Country limited to the U.S only, can improve by supporting other countries and regions
Does not support non-developer usage, can improve by providing dashboard for non-technical users

Overall: Very easy to use, if support more countries then will be better. Also, many users are non-technical, so it will be good to support them as well.

Pros: -Ease of Integration: The API is well-documented, making it simple for developers to integrate into websites and applications.

-Secure Authentication: Authentication is managed through a Bearer token, providing a secure method for accessing nonprofit data.

-Bulk Checking: The bulk-check feature is ideal for users who need to verify large lists of nonprofit EINs at once.

-Clear Error Handling: The API provides clear error codes (e.g., 400, 401, 404, 500), which make troubleshooting easier.

-Comprehensive Data: The API offers access to detailed nonprofit data, helping businesses ensure they support eligible organizations.

Cons: -Limited Demo API Key: The demo API key provided is only valid for a limited number of EINs, which may be restrictive for testing purposes.

-No Parameters in Bulk Requests: The bulk request lacks more customizable options, which could be limiting for certain use cases.

-Pricing Transparency: The pricing page is not included in the documentation, which could make it difficult for users to assess the cost of using the API before signing up.

Overall: The NonprofitCheck Plus API v1.0 is a powerful and secure tool for verifying nonprofit organizations, especially for businesses looking to avoid supporting ineligible nonprofits. Its user-friendly documentation, secure authentication, and bulk-check functionality make it a great choice for developers. However, the limitations of the demo API key and lack of pricing transparency could be barriers for some users. Overall, it's a solid solution for ensuring nonprofit compliance with some room for improvement in accessibility and customization.

Pros: + Super dev-friendly – curl worked on first try, response JSON is clean and easy to parse.

+ Useful data – pulls from IRS BMF, Pub78, AROE (that one’s actually pretty valuable – tells you if a nonprofit lost exemption due to not filing).

+ Fast response times – sub-200ms consistently when I tested.

+ Free tier exists – decent for testing or small-scale use. Not always the case with APIs like this.

Cons: + Free limit’s a bit tight – 200 checks/month feels low if you're doing any kind of batch lookup. Would love to see 500+ :).

+ U.S. only – would be awesome if it supported nonprofit lookups outside the States (even just Canada or EU would help).

Overall: Really solid if you’re building anything donation-related or need nonprofit verification in the U.S. Could 100% see this being part of a browser-based lookup tool we’re planning for users. Just wish the rate limit were higher, and maybe broader country support long-term.

Pros: Reliable Data Sources: Pulls real-time data from trusted sources like IRS, OFAC, BMF, and PUB78 — critical for any platform dealing with nonprofit verification.

Streamlines Compliance: Automates what would otherwise be a time-consuming manual process for donation and grant platforms.

Good Documentation: The developer docs are clear and include integration examples, making setup faster for teams.

Prevents Fraud Early: Helps teams vet nonprofits before money or partnerships are involved, minimizing risk.

Simple Integration: RESTful API design makes it straightforward to integrate into existing backend systems.

Cons: No Public Demo or Sandbox: There isn’t a test environment or live demo for exploring the API before signup — a demo key would help.

US-Only Scope: Since it's based on IRS and U.S. databases, it doesn't support international nonprofit checks (yet).

Pricing Info Missing: There's no immediate mention of cost or pricing tiers on the main page — would be good to know up front.

Overall: This API fills a critical gap for developers working in nonprofit, finance, or donor platforms.
The ability to verify organizations using IRS, BMF, PUB78, and OFAC sources in real-time is extremely valuable for compliance and fraud prevention.
I especially like how clear the documentation is — the examples make integration approachable even for teams with less backend experience.
If your platform handles grants or donations, this is a tool worth integrating. It saves time and risk.

Pros: The Nonprofit Check Plus API has exceeded our expectations for automating nonprofit verification. Integration was remarkably smooth - we had it running in our system within half a day thanks to the clear documentation and swagger-based testing environment. The API pulls from authoritative sources (IRS Pub 78, BMF, OFAC lists) which gives us confidence in the data accuracy.
The free tier offering 200 checks per month without requiring a credit card is generous and perfect for testing. Response times are consistently fast, and the JSON responses are well-structured and easy to parse. The bulk verification endpoint has been particularly valuable for processing multiple EINs at once. Customer support has been responsive and helpful when we had implementation questions. The transparent pricing model with annual discounts makes budgeting straightforward.

Cons: The API is limited to U.S. nonprofits only, which restricts its usefulness for organizations working internationally. While the documentation is good, more ready-to-use code examples in popular programming languages would speed up integration for less experienced developers. The rate limits on the free tier can be restrictive during high-volume periods, requiring an upgrade sooner than anticipated.

Overall: The Nonprofit Check Plus API is a reliable, well-documented solution that significantly streamlines nonprofit verification and compliance workflows. While limited to U.S. nonprofits and requiring some technical expertise, it delivers excellent value through accurate real-time data, responsive support, and a generous free tier that makes it accessible for organizations of all sizes.

Pros: - Easy to understand developer docs
- Transparent pricing model
- Examples via docs
- Simple setup of an API key

Cons: - No visual way to use this tool for non-technical users

Overall: A good API product for technical users to vet info about nonprofits, but would love to see a native visual way to access this tool for less technical users

Pros: • Clear API documentation with real-world nonprofit use cases
• Fast response times and well-structured endpoints
• Helpful sandbox for testing
• Strong focus on compliance and legal transparency

Cons: • Limited front-end examples for integration
• Requires some technical experience to fully utilize
• Could benefit from more language support in documentation

Overall: If you’re building tools for donations, grant management, or nonprofit verification, this API offers a trustworthy foundation. Especially appreciated the clean structure and ability to check nonprofit status in real-time. Minor room for improvement in frontend resources, but overall a solid product.

Pros: Straightforward to integrate
Free tier
Developer‑friendly
Greatly reduces manual due diligence
Responsive support and clear documentation

Cons: Basic free tier is rate-limited
Some developers would prefer more prebuilt code examples for popular languages to simplify setup

Overall: The Nonprofit Check Plus API delivers reliable, real-time nonprofit status verification with a clear emphasis on compliance and developer usability. While basic users should be aware of rate limits, the generous free tier and smooth upgrade path make it practical for both small and larger operations.

Pros: The API is easy to implement. The single bearer token and natural english JSON responses, I was up and running in minutes.

I love free. The free version is generous enough for testing and light usage, anyone can get on board.

It pulls authoritative data from IRS Pub 78, BMF, AROE, and OFAC lists for nonprofit verification.

If needed there is a bulk endpoint that allows organizations to verify dozens or hundreds of Employer Identification Numbers (EINs) at once.

The swagger-based docs with live testing make it easy to implement, test and troubleshoot.

Cons: Not too many really and most cons are just a matter or what you need vs what you want.

The free tier, while great for testing, may be restrictive for production use without upgrading.

Currently non-profit search is limited to U.S. nonprofits, which may not suit international platforms or global CSR programs such as the one I'm familiar with at Sasol, South Africa.

It’s strictly an API so companies would need to build their own interface or integrate it into existing systems.

Overall: NonprofitCheck Plus does deliver exactly what it promises: fast, and scalable nonprofit verification. I believe it will work for any organization that needs to verify NPO's. The free tier is such a nice option, and the upgrade path is seamless once a company needs to scale.

Pros: The API is straightforward to integrate and well-documented. It’s a great tool for automating nonprofit verification and due diligence using trusted datasets. Ideal for donation, grant, and compliance platforms.

Cons: No major issues, but a live demo or test environment would help evaluate the API faster before integration.

Overall: A very useful API to automate nonprofit verification. The integration is straightforward, the documentation is clear, and the value it brings in terms of compliance and fraud prevention is obvious. Ideal for platforms dealing with donations, grants, or partnerships. Solid approach and well thought out.

Pros: We recently integrated the Check Plus API into our onboarding process for nonprofit verification, and it has been a game changer. The documentation was straightforward, allowing us to implement it into our existing system in under a day. The accuracy of the EIN validation and status checks has significantly enhanced our trust metrics. The real-time responses from the API have drastically reduced our manual review time, and the dashboard provides excellent visibility into check history and logs.

Cons: It would be great to have more customizable fields or tagging options for bulk verification tasks. Additionally, the API rate limits can feel restrictive during peak periods unless you opt for a higher tier.

Overall: This is a robust and reliable API that has greatly improved our nonprofit onboarding workflow. The combination of automation and responsive support makes it one of the smoothest integrations we've experienced. I highly recommend it for any platform focused on tax-exempt entity compliance.

Pros: Pros: We integrated the Check Plus API to streamline nonprofit verification during our onboarding process. The documentation was clear, and implementation into our existing backend took less than a day. The accuracy of the EIN validation and status checks really boosted our trust metrics.
The real-time responses from the API helped us reduce manual review time drastically. Plus, the dashboard gives great visibility into check history and logs.

Cons: Would love to see more customizable fields or tagging options for bulk verification jobs. Also, the API rate limits can feel tight during peak volume periods unless you're on a higher tier.

Overall: A solid, dependable API that has significantly improved our nonprofit onboarding workflow. The blend of automation and responsive support makes it one of the smoother integrations we've done. Highly recommended for platforms dealing with tax-exempt entity compliance.

Pros: The NonprofitCheck Plus API from Pactman is an excellent solution for verifying nonprofit compliance, offering granular IRS BMF, PUB78, automatic revocation, and OFAC data in one platform. With a generous free tier (200 checks/month), clear authentication via Bearer tokens, and straightforward REST endpoints for single or bulk EIN lookups, it’s accessible for both small and large organizations. The API stands out among competitors like Guidestar’s Charity Check by including at least 40 detailed nonprofit fields, no credit card required to start, and transparent pricing with annual discounts. While more ready-to-use code examples and expanded support options would be helpful, the comprehensive documentation and competitive features make it a reliable, developer-friendly choice for anyone needing fast, compliant nonprofit verification.

Cons: The platform could benefit from more prebuilt code examples in popular languages to speed up integration for less experienced developers.

Overall: Reliable, affordable API with rich nonprofit data; could use more code samples for easier setup.

Pros: Compliance in non profit fund raising made easier.
Free trial without credit card to get things started.

Cons: I would prefer instant access to the free trial version.

Overall: Clear documentation and easy integration.
It' good that they offer this free trial version to try things out.

Pros: We started using the Check Plus API to verify EINs and compliance for nonprofits on our platform. Honestly, it’s made operations much easier.

The setup was super quick, the data is reliable, and support actually responds when you reach out (rare these days).

The customer support team was responsive when we had questions about batch checks.

Cons: Like any API-based service, there’s a bit of a learning curve during setup, and costs can grow as your usage grows. That said, once it’s in place, it runs smoothly and saves a ton of time.

Overall: It has been a reliable, time-saving tool for our team. It simplifies nonprofit verification efficiently. The value it brings far outweighs the cost. We’d definitely recommend it.