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RPC infrastructure · last verified 2026-09-14

Avalanche public API (api.avax.network)

api.avax.network/ext/bc/C/rpc ↗ JSON record
RPC infrastructure key-free Avalanche L1 EVM verified
Access model (raw)

key-free-public

Free tier

Free, no key; 'Rate limiting is present, but many of the API calls are cached, and the rate limits are quite high' (no numbers published; 'contact us' if constrained).

Rate limit

unpublished ('quite high', cached); batch max 40 items (build.avax.network C-Chain API doc, 2026-09-14); eth_getLogs <=2048-block span (retained from 2026-09-05 probe, not re-verified); debug_ namespace off on public node

Paid from

n/a (Ava Labs public good). For guaranteed capacity use AvaCloud or a provider.

Pricing unit

n/a

Chains

Primary Network only: C-Chain https://api.avax.network/ext/bc/C/rpc, X-Chain /ext/bc/X, P-Chain /ext/P; Fuji at api.avax-test.network. Avalanche L1s have their own public RPCs at https://subnets.avax.network/<l1>/mainnet/rpc.

Promos

—

Evidence freshness

recent · last checked 2026-09-14

Chain families

evm.avalanche-l1 evm

Capabilities
  • json-rpc C/X/P
  • websocket (C-Chain only)
  • archive ('full archival for the Primary Network' — old-state query succeeded)
  • batch max 40
  • NO debug_ methods
  • eth_getLogs max 2048 blocks (probed error: 'maximum is set to 2048')
Pricing page

docs.avax.network/tooling/rpc-providers

Sourcesdocs.avax.network/tooling/rpc-providersbuild.avax.network/docs/api-reference/c-chain/apisupport.avax.network/en/articles/6159007-what-apis-are-avail

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