Blockchain — entry 010 of 11
The Graph
The Graph indexes onchain data into open GraphQL subgraphs that any client can query through its hosted Gateway, covering Ethereum and dozens of other networks without a per-chain node integration. The Gateway requires a bearer token issued from Subgraph Studio, billed on a usage-based model with a free monthly query allowance before paid billing applies. Every query and response travels as GraphQL over HTTPS.
AuthenticationAPI KeySign up with the provider to obtain credentials.
HTTPSSupportedTraffic is encrypted in transit.
CORSEnabledCallable directly from browser JavaScript.
PricingFreemiumA usable free tier exists, with paid plans for more volume.
FormatsGraphQLResponses can be requested as GraphQL.
GreatAPIs Score
Score75
Authentication15/25API key required
Pricing17/20Freemium tier available
Docs14/20Documentation URL provided
Formats9/15Single response format
Freshness20/20Verified within 6 months
Auth quickstart
- Sign up with the provider to get an API key.
- Send it on every request as a header
Authorization: <key> - The exact header isn't documented — Authorization is a common default; confirm in the provider's docs.
Stored keyNo key stored
Your key is stored only in this browser (localStorage) and sent directly to the API — never to greatapis.