For AI agents: an LLM-friendly Markdown version of every page is available by appending .md to its URL or by sending an Accept: text/markdown request header. The full documentation index is at https://www.ankr.com/docs/llms.txt
Skip to main content

Secret Network pages removed

Docs Team

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 adds eight Sui tools

Docs Team

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.

Harmony reaches end of support

Docs Team

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.

ankr_getTransactionsByAddress takes one address per request

Docs Team

ankr_getTransactionsByAddress now answers -32602 when address carries more than one address. The method has always searched a single address: given an array, it used the first element and ignored the rest, while our API reference described address as an array of wallets. We corrected the reference and the method now says so instead of returning a partial result.

Roundup: Filecoin Calibration moves to Solstice, Sui protocol 137 and IOTA protocol 36 are live

Docs Team

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.

Somnia joins the Advanced API

Docs Team

Somnia mainnet is now a blockchain value on the Advanced API. Pass somnia_mainnet to the Token, NFT and Query methods, or omit blockchain and Somnia joins the multichain fan-out with every other supported network. We also corrected two testnet names in the supported-chain lists.

Solana activated Transaction V1: send maxSupportedTransactionVersion 1

Docs Team

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.

Roundup: Avalanche Helicon lands ahead of 22 September, and this month's end-of-support dates arrive

Docs Team

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 15 September

Docs Team

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.

Historical tracing on Kaia ends on 15 September

Docs Team

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.

Roundup: MONAD_TEN, Sui protocol 135, and the moved Agentic RPC paths now answer 301

Docs Team

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.