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Hashable API alternatives

A REST API to access high level cryptographic functions and methods. If it doesn't fit your project, here are the 10 best free Security APIs to use instead in 2026, out of 60 in the directory.

For reference, Hashable API: No API key needed · Callable from the browser (CORS) · HTTPS.

  1. 1Presend logo

    Presend API

    Online · 399 ms

    Security and developer utility API -- malware, vulnerability, and domain checks, no signup.

    • No API key needed
    • Fast: 399 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  2. 2IPGuardian logo

    IPGuardian API

    Online · 940 ms

    Check IP addresses against 140+ public threat intelligence blocklists.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  3. 3IPLogs logo

    IPLogs API

    Online · 762 ms

    Free VPN, proxy, Tor and datacenter IP detection. 13 sources, active probing.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  4. 4OSV logo

    OSV API

    Online · 608 ms

    Open source vulnerability database and distributed triage infrastructure.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  5. 5Passwordinator logo

    Passwordinator API

    Online · 730 ms

    Generate random passwords of varying complexities.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  6. 6VPNDetection logo

    VPNDetection API

    Online · 726 ms

    Check whether an IPv4 or IPv6 address belongs to VPN infrastructure, no key needed.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  7. 7

    dead-drop API

    Online · 688 ms

    Ephemeral zero-knowledge encrypted data sharing.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  8. 8CSR.plus logo

    CSR.plus API

    Online · 1200 ms

    Generate certificate signing requests and private keys without OpenSSL.

    • No API key needed
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  9. 9URLhaus logo

    URLhaus API

    Online · 317 ms

    Database of malicious URLs used for malware distribution.

    • No API key needed
    • Fast: 317 ms response
    • HTTPS
    No authHTTPSCORS ?
  10. 10FilterLists logo

    FilterLists API

    Online · 1008 ms

    Lists of filters for adblockers and firewalls.

    • No API key needed
    • HTTPS
    No authHTTPSCORS ?

Hashable API vs alternatives

Hashable API compared with its alternatives
APIAPI keyHTTPSCORSUptimeResponseRating
HashableNoYesYesDown–Not rated
Presend logoPresendNoYesYesUp399 msNot rated
IPGuardian logoIPGuardianNoYesYesUp940 msNot rated
IPLogs logoIPLogsNoYesYesUp762 msNot rated
OSV logoOSVNoYesYesUp608 msNot rated
Passwordinator logoPasswordinatorNoYesYesUp730 msNot rated
VPNDetection logoVPNDetectionNoYesYesUp726 msNot rated
dead-dropNoYesYesUp688 msNot rated
CSR.plus logoCSR.plusNoYesYesUp1200 msNot rated

See also: best Security APIs · all Security APIs

Hashable API alternatives FAQ

What is the best free alternative to the Hashable API in 2026?

The top-ranked free alternatives to the Hashable API are Presend API, IPGuardian API and IPLogs API, all in the Security category. Rankings combine access (API key, HTTPS, CORS), daily uptime checks and developer ratings.

How many Security APIs are similar to the Hashable API?

The directory lists 60 other free Security APIs. This page compares the top ones side by side.