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Chainlink API vs Helium API

Two free Blockchain APIs compared on access, reliability and developer ratings, using data from our daily health checks.

The verdict

  • Choose Chainlink API if its data fits your use case better; on access and reliability it's level with Helium API.
  • Choose Helium API if you want faster responses.

Side by side

Chainlink APIHelium API
What it doesBuild hybrid smart contracts with Chainlink.Helium is a global, distributed network of Hotspots that create public, long-range wireless coverage.
ProviderChainlink DevHubHelium
API keyNot neededNot needed
HTTPSYesYes
CORS (browser calls)UnknownUnknown
Status todayOnline · 4717 msOnline · 1953 ms
Uptime (30 days)UpUp
Developer ratingNot rated yetNot rated yet
PriceFree / free tierFree / free tier
Chainlink docs ↗Helium docs ↗

About each API

Chainlink logoChainlink API

Build hybrid smart contracts with Chainlink.

The Chainlink DevHub is how you learn to use the Chainlink platform. Jump into product demos, get started with curated tutorials, and find live events to attend.

Strengths

  • No API key needed
  • HTTPS

Ratings, reviews and FAQ →

Helium logoHelium API

Helium is a global, distributed network of Hotspots that create public, long-range wireless coverage.

How to access archived Helium L1 blockchain data via AWS S3 or torrent downloads.

Strengths

  • No API key needed
  • HTTPS

Ratings, reviews and FAQ →

How to choose between them

  • Prototyping or a tutorial? Pick the one that needs no API key (both qualify).
  • Calling from a web page? You need CORS. Otherwise route requests through your own server or a serverless function.
  • Going to production? Favour HTTPS, a strong uptime record and a provider with clear rate limits and terms. Check each API's docs before you commit.
  • Still unsure? Both are free to try: send one request to each and compare the data you get back.

Chainlink vs Helium FAQ

Do Chainlink API and Helium API need an API key?

Neither needs an API key; you can call both straight away.

More comparisons

Chainlink API alternatives · Helium API alternatives · best Blockchain APIs