Dev tools · alternatives · 2026

24 alternatives to ChainCheck API

Instant crypto address validation for 120+ chains.

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

1. 1
   Chainkit from PencilDATA▲69

   Add blockchain integrity to your data and apps in 5 minutes

   2018 · its alternatives →

2. 2
   Chainsight▲86

   Access web3 insights and secure your crypto assets

   2023 · chainsight.com · its alternatives →

3. 3
   ChainClarity▲299

   Grasp new crypto in minutes with AI-powered explanations

   2024 · chainclarity.io · its alternatives →

4. 4
   SimpleHash▲114

   Multi-chain NFT API

   2022 · simplehash.com · its alternatives →

5. 5
   Very basic blockchain-free cryptocurrency PoC in Python▲171

   Very basic blockchain-free cryptocurrency PoC in Python - spipm/crackcoin

   2017 · github.com · its alternatives →

6. 6
   Email Verify API▲92

   Simple email validation API for a $39 lifetime license

   2021 · cloudlyn.com · its alternatives →

7. 7
   Checker▲124

   Detect fake signups in under 200ms with an easy-to-use API

   2025 · its alternatives →

8. 8
   BlockCrypto▲128

   A search engine for the blockchain

   2018 · its alternatives →

9. 9
   Chain49 Blockchain API▲2

   Blockchain-as-a-Service - Kickstart your next crypto project

   2023 · hartmann-it.de · its alternatives →

10. 10
    Chain▲125

    The Block Chain API for Developers

    2014 · chain.com · its alternatives →

11. 11
    Safescan▲73

    Anti money laundering and KYC analysis for a crypto address

    2023 · cyberscope.io · its alternatives →

12. 12
    Chainstack Unlimited Node▲10

    Scalable blockchain APIs with a flat monthly fee

    2025 · chainstack.com · its alternatives →

13. 13
    Carbon▲86

    Buy Cryptocurrency Instantly using Credit/Debit

    2019 · its alternatives →

14. 14
    MailCheck▲49

    Stop Free Trial Abuse with Advanced Email Verification

    2025 · mail-check.tech · its alternatives →

15. 15
    Chainwarden▲2

    Offline crypto address validation for Java

    Aug 2026 · chainwarden.org · its alternatives →

16. 16
    CHAINPOINT▲72

    Anchor an unlimited amount of data to multiple blockchains.

    2017 · chainpoint.org · its alternatives →

17. 17
    Light weight CoinMarketCap.com alternative with additional insights▲10

    Swap 1000+ cryptocurrencies anonymously — no KYC, no sign-up, non-custodial. Best rates across 70+ blockchains in about 5 minutes. Start exchanging now.

    2018 · chainswap.io · its alternatives →

18. 18
    CryptoCanary▲65

    Crowdsourced ratings & reviews for the cryptocurrency world

    2019 · cryptocanary.app · its alternatives →

19. 19
    CryptoNotify▲62

    Receive transaction notifications of any BTC or ETH address

    2019 · cryptonotify.app · its alternatives →

20. 20
    Crypto APIs▲10

    Blockchain development infrastructure layer

    2019 · cryptoapis.io · its alternatives →

21. 21
    Python Library for Chain.com Bitcoin API▲12

    Integration library for the https://chain.com API. - thesis/chain-bitcoin-python

    2014 · github.com · its alternatives →

22. 22
    CryptoPayMap▲3

    Clarity for crypto adoption — every place labeled by proof.

    Nov 2025 · cryptopaymap.vercel.app · its alternatives →

23. 23
    Chain Proof▲1

    Blockchain transactions to professional PDF documents

    Jan 2026 · chainproof.app · its alternatives →

24. 24
    Chainternals▲3

    Cryptocurrency and Blockchain Code Analysis and Review

    2019 · chainternals.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →