Updating Calibration testnet RPCs page with Zondax Beryx RPC Status page

Author: eshon

networks/calibration/rpcs.md

@@ -4,26 +4,16 @@ description: Public RPC endpoints are available for the Calibration testnet.
 
 # RPCs
 
-{% hint style="info" %}
-[Chainlist](https://chainlist.org/?search=filecoin\&testnets=true) contains a dynamically updated list of available Filecoin RPCs. Select **Include Testnets** to view available test networks. [Find out more at chainlist.org's Filecoin listings](https://chainlist.org/?search=filecoin\&testnets=true).
-{% endhint %}
+To check the blockheight, health and availability of Filecoin RPC endpoints, visit the [Beryx.io explorer's Filecoin RPC Provider status page](https://beryx.io/rpc-providers). Use the Filecoin logo dropdown at top to switch networks to Calibration testnet.
 
-These endpoints are limited to [read-only Filecoin JSON RPC API calls](../../reference/json-rpc/) and [`MPoolPush`](../../reference/json-rpc/mpool.md) for sending messages that have already been signed.
+Chainlist also provides a dynamically updated list of [available Filecoin - Mainnet RPCs](https://chainlist.org/?search=filecoin\&testnets=false).
 
-## [Ankr](https://www.ankr.com/rpc/filecoin)
-
-* HTTPS: `https://rpc.ankr.com/filecoin_testnet`
-* [Ankr documentation](https://www.ankr.com/docs/rpc-service/chains/chains-list/#filecoin)
-
-## [ChainupCloud](https://cloud.chainup.com)
+{% hint style="info" %} Please note that most publicly hosted endpoints only guarantee recent state, i.e. 2000 of the latest blocks (last 16.67 hours). To request an archival node you can contact a provider below. {% endhint %}
 
-* HTTPS: `https://filecoin-calibration.chainup.net/rpc/v1`
-* [ChainupCloud documentation](https://docs.chainupcloud.com/blockchain-api/filecoin/public-apis)
+These endpoints are limited to the read-only [Filecoin JSON RPC API](../../reference/json-rpc/) including read-only [Filecoin Eth RPC](../../reference/json-rpc/eth.md) methods, except for the write operations [`MPoolPush`](../../reference/json-rpc/mpool.md#mpoolpush) and [`EthSendRawTransaction`](../../reference/json-rpc/eth.md#ethsendrawtransaction) for sending already signed messages.
 
 ## [Glif](https://api.calibration.node.glif.io)
 
-Please note that publicly available hosted endpoints **only guarantee 2000 of the latest blocks.**
-
 * HTTPS: `https://api.calibration.node.glif.io/rpc/v1`
 * WebSocket: `wss://wss.calibration.node.glif.io/apigw/lotus/rpc/v1`
 * Lotus lite-node command:
@@ -35,5 +25,15 @@ FULLNODE_API_INFO=wss://wss.calibration.node.glif.io/apigw/lotus lotus daemon --
 * When using a lite-node, omit `/rpc/v1` from Glif’s WebSocket address.
 * [Glif documentation](https://hosting.glif.io/)
 
+## [Ankr](https://www.ankr.com/rpc/filecoin)
+
+* HTTPS: `https://rpc.ankr.com/filecoin_testnet`
+* [Ankr documentation](https://www.ankr.com/docs/rpc-service/chains/chains-list/#filecoin)
+
+## [ChainupCloud](https://cloud.chainup.com)
+
+* HTTPS: `https://filecoin-calibration.chainup.net/rpc/v1`
+* [ChainupCloud documentation](https://docs.chainupcloud.com/blockchain-api/filecoin/public-apis)
+
 
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