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Is Bitcoin Halving API down?

Current status, daily uptime history and troubleshooting for the Bitcoin Halving API (Cryptocurrency).

Possibly: Bitcoin Halving's last check failed

Our latest daily check of Bitcoin Halving (Oct 24, 2026, 12:25 UTC) failed: its TLS certificate chain is incomplete. One failure can be a blip; the live check below tells you whether it's still failing.

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Bitcoin Halving API uptime history

30 days agoLatest check
Uptime
2 checks so far
Last check
Oct 24, 2026, 12:25 UTC
Response
Its TLS certificate chain is incomplete
Last up
Not seen up yet

We check Bitcoin Halving's listed URL (https://why21million.com/halving-api/) once a day. History started when Bitcoin Halving was first checked, so new entries show fewer than 30 days.

Bitcoin Halving API not working for you?

  1. A 429 response means you're being rate-limited. Slow down, cache responses, and respect any Retry-After header.
  2. If it works from one network but not another, check firewalls, VPNs and regional blocks.
  3. Check the provider's documentation, status page or social accounts for planned maintenance or a changed endpoint.

Cryptocurrency APIs up at their last check

  1. 1DefiLlama logo

    DefiLlama API

    Online · 178 ms

    Open and transparent DeFi data, TVL, coin prices, volumes, and yields.

    • No API key needed
    • Fast: 178 ms response
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  2. 2BitcoinYield logo

    BitcoinYield API

    Online · 761 ms

    Live yields on BTC, ETH and stablecoins across DeFi and CeFi, with an A-D risk grade per offer.

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

    BlazePhoenix API

    Online · 746 ms

    On-chain DEX aggregator quotes and route execution data.

    • No API key needed
    • Returns JSON at its URL
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  4. 4

    Block Lottos API

    Online · 675 ms

    On-chain lottery, draw history, jackpot and advertising endpoints.

    • No API key needed
    • Returns JSON at its URL
    • Callable from the browser (CORS)
    • HTTPS
    No authHTTPSCORS
  5. 5BTCGlobe logo

    BTCGlobe API

    Online · 878 ms

    Bitcoin height, fees, mempool and peer data served live from two self-hosted nodes.

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

Compare all Bitcoin Halving alternatives · APIs down right now

Bitcoin Halving API status FAQ

Is Bitcoin Halving API down right now?

Our latest daily check of Bitcoin Halving (Oct 24, 2026, 12:25 UTC) failed: its TLS certificate chain is incomplete. One failure can be a blip; the live check below tells you whether it's still failing. This page also runs a live check from our server when you open it, so you can see whether Bitcoin Halving is responding at this moment.

How do you check whether Bitcoin Halving API is up?

Once a day our checker requests Bitcoin Halving's listed URL (https://why21million.com/halving-api/) and records whether it answers within 15 seconds. Answers like 401 (needs a key), 403 (blocks bots) or 429 (rate-limited) count as up, because the server responded. The listed URL is often the documentation page, so an API endpoint can occasionally fail while its docs stay up.

What can I use if Bitcoin Halving API is down?

Free Cryptocurrency APIs that were up at their last check include DefiLlama, BitcoinYield, BlazePhoenix. See the full list of Bitcoin Halving alternatives for a comparison.

Why does Bitcoin Halving API work for others but not for me?

A 429 response means you're being rate-limited. Slow down, cache responses, and respect any Retry-After header. If it works from one network but not another, check firewalls, VPNs and regional blocks. Check the provider's documentation, status page or social accounts for planned maintenance or a changed endpoint.