We retired the HECO and Kinto endpoints on Ankr RPC on 13 October 2026, as neither serves chain data any more. They join the Fuel, Kusama and 0G Galileo testnet endpoints we retired on 15 September 2026, as announced. The API reference pages for HECO, Kinto, Fuel and Kusama and their entries in the chain list are gone. No method limits, error codes or rate limits changed on any other network.
eth_sendTransaction now returns -32075 Method disabled on every EVM chain, instead of an error from the node. We never hold keys for you, so the method could not send a transaction before either; only the error you get back changed. Ethereum Sepolia activated Glamsterdam on 6 October, Filecoin mainnet moves to network version 29 and IoTeX mainnet to the Zanzibar hard fork on 19 October, and our nodes for all three already run the releases that carry them. XRP Ledger mainnet is on the rippled 3.4.1 security release. Whitechain Sepolia is on the Web3 API platform, the x402 manifest lists paid JSON-RPC routes, and Agent RPC MCP 0.2.4 is on npm and in the MCP Registry.
We removed five Aptos methods that our Aptos nodes do not serve. Get account resources, Get account modules, Get account transactions, Get events by creation number and Get events by event handle need an indexer, and on Ankr they answer HTTP 500. No method limits, error codes or rate limits changed.
Sui GraphQL is available on Premium only, at https://rpc.ankr.com/premium-http/sui_graphql/YOUR_ANKR_API_KEY. We listed https://rpc.ankr.com/http/sui_graphql with the key appended, and that form answered -32052 API key is not allowed to access blockchain for every key. No method limits, error codes or rate limits changed.
We removed the Secret Network API reference from the docs. Ankr RPC stopped serving Secret Network in September 2025, and the pages stayed behind after the endpoints were retired. No method limits, error codes or rate limits changed on any other network.
Agent RPC MCP now has twenty-five tools, eight of them for Sui, and reaches Sui over its gRPC API instead of JSON-RPC. Agents can read Move objects, owned objects, dynamic fields, packages and function signatures, resolve SuiNS names, simulate a transaction and poll Move events from the chain tip.
We serve the Whitechain Sepolia testnet on rpc.ankr.com/whitechain_testnet over HTTPS. Whitechain is an OP Stack Layer 2 with WBT as its gas token. The chain is now in the chain list, with its own API reference.
Harmony mainnet reaches end of support on Ankr RPC. The Harmony network stopped producing blocks on 10 September 2026, after the Harmony team sunset its Layer 1 and announced a migration of the ONE token to Ethereum. We retire the rpc.ankr.com/harmony endpoint and remove Harmony from the chain list. No method limits, error codes or rate limits changed on any other network.
We serve Robinhood Chain mainnet on rpc.ankr.com/robinhood_mainnet to Premium and Enterprise users, over HTTPS and WSS. The chain is now in the chain list, with its own API reference.
Filecoin's Calibration network activates network version 29 (Solstice) on 28 September at 12:59:30 UTC, and our Calibration nodes already run the release candidate that carries it. Sui mainnet moved to protocol 137, IOTA mainnet to protocol 36, and Ethereum mainnet and Sepolia to reth v2.6.0. We also corrected the 15 September end-of-support list: it now has eighteen endpoints, and one of the additions answered keyless calls.
Solana turned on Transaction V1 at the start of epoch 1035, on 15 September 2026 at about 01:00 UTC. Our nodes run Agave v4.2.2 and serve v1 blocks, so nothing changes on our side. Your side has one change to make: getBlock and getTransaction calls that still pass "maxSupportedTransactionVersion": 0 now fail with -32015 on almost every block, because almost every block already carries a v1 transaction.
Avalanche's Helicon upgrade activates on 22 September at 15:00 UTC, and our nodes already run the release that carries it. Core shipped an emergency hardfork, Sui moved to protocol 136, and Ethereum mainnet and Sepolia moved to reth v2.5.2. Separately, Solana activated Transaction V1 today, and that one needs a change in your client.
Eighteen endpoints reach end of support on Ankr RPC on 15 September 2026. Seven networks go entirely, testnets included, and six testnets and variants go while their network stays. Seventeen of the eighteen already require a Premium key. The vFlow Volta testnet also answered keyless calls, so a keyless or Freemium integration that used it needs to move. Xai, Syscoin and Rollux are not served on the Advanced API either. No method limits, error codes or rate limits changed on any network that stays.
From 15 September Kaia runs on full nodes, and how far back a call can reach changes. Tracing keeps working for recent history, roughly a day of blocks, and a state read at an explicit older block needs archive state that a full node does not hold. Everything else on Kaia stays as it is: the same endpoints on mainnet and testnet over HTTPS and WSS, the same rate limits, the same error codes, and the same method list apart from the five listed below.
Sixteen networks stopped answering keyless and Freemium calls on 31 August, 29 endpoints across mainnets and testnets. They need a Premium key from now on. Sui JSON-RPC moved off the keyless endpoint and stays free on Freemium. Swell reached end of support. No method limits, error codes or rate limits changed anywhere else.
Redbelly mainnet has been answering on rpc.ankr.com/redbelly_mainnet since late August, and it was missing from the chain list, so the only way to find the endpoint was to be told about it. It is documented now, with its own API reference, and the reference is explicit about the standard EVM methods this node does not implement.
Monad's MONAD_TEN activates on mainnet on 2 September at 14:30 UTC, and our nodes are already on the release that carries it. Sui moved to protocol 135 and Stellar to Protocol 28. On the docs side, the four Agentic RPC pages that moved to a top-level section now answer with a real 301 instead of a page that says 200 and redirects in the browser, and that includes the Markdown twin an agent fetches.
An agent that knows only rpc.ankr.com can now read what the deployment supports and who answers it, without a key and without a second hostname.
The agent-facing pages moved out of Node API into a top-level Agentic RPC section, and gained the two pages they were missing: a quickstart and a troubleshooting guide.
We published the TORPC specification and its reference implementation under open licenses, and the Agent RPC MCP server is now installable from npm.