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The Graph

Indexing protocol for querying networks like Ethereum with GraphQL

Open documentation ↗
API keyHTTPSNo CORSBlockchain

Verified 4 days ago: 100% uptime

API key

Required

HTTPS

Supported

Browser calls

No, needs a proxy

Status

Live · 100/100

What our checks found

Health score
100/100
Reliability
100%
Average latency
926ms

Last checked 2026-09-18. Measured independently, not self-reported by the provider.

How to call it

A starting template for The Graph. Replace ENDPOINT with the path from the official documentation, which we link above rather than guess at.

# Requires an API key. Check the docs for whether it goes in a header or a query parameter.
curl -s "https://thegraph.com/ENDPOINT" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Accept: application/json"

This API does not send CORS headers, so a browser will block a direct call from your front end. Call it from your server, or put a small proxy in front of it.

Where this listing comes from

Aggregated from one public source (public-apis), then normalised and checked by us. If something here is wrong, tell us and we will correct it.

Other Blockchain APIs

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ClearTrace

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Cross-frontend DEX attribution and execution quality data across Ethereum and L2s

No keyCORSHTTPS

Verified 4 days ago: 100% uptime

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Helium

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

No keyCORSHTTPS

Verified 4 days ago: 100% uptime

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Steem

Blockchain

Blockchain-based blogging and social media website

No keyCORS

Verified 4 days ago: 100% uptime

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Chainlink

Blockchain

Build hybrid smart contracts with Chainlink

No keyHTTPS

Verified 4 days ago: 100% uptime

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Chainpoint

Blockchain

Chainpoint is a global network for anchoring data to the Bitcoin blockchain

No keyHTTPS

Verified 4 days ago: 100% uptime

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The Graph — common questions

Answered from what our own scheduled checks found, not from the provider's marketing.

Is The Graph free to use?

The Graph is listed in our free catalogue, but it requires an API key, so you will need to register before your first call. Providers frequently reserve higher limits and commercial use for paid plans.

Does The Graph need an API key?

Yes. The Graph authenticates with an API key. Keep it server-side rather than in browser code, because anything in your frontend bundle is readable by anyone who opens developer tools.

Can I call The Graph from browser JavaScript?

Not directly. The Graph did not return CORS headers when we checked, so the browser will block your page from reading the response even though the request itself succeeds. Call it from a server, or put a small proxy in front of it.

Is The Graph still working?

Yes, as of 2026-09-18. Our automated check reached The Graph and recorded a 100% reliability score with a median response time of 926 ms. We re-check on a schedule, and this page updates with the result.

Is The Graph available over HTTPS?

Yes. The Graph serves over HTTPS, so you can call it from a secure page without triggering a mixed-content block.