diff --git a/chain-signatures/README.md b/chain-signatures/README.md
index 130cfb6a7..ed0128da8 100644
--- a/chain-signatures/README.md
+++ b/chain-signatures/README.md
@@ -44,12 +44,18 @@ Key versions refer new versions of the root key that we may choose to generate o
 pub const fn latest_key_version(&self) -> u32
 ```
 
+## `experimantal_signature_deposit()`
+This experimantal function calculates the fee for a signature request. The fee is volatile and depends on the number of pending requests. If used on a client side, it can give outdate results.
+```rust
+pub fn experimantal_signature_deposit(&self) -> u128
+```
+
 For more details check `User contract API` impl block in the [chain-signatures/contracts/src/lib.rs](./chain-signatures/contracts/src/lib.rs) file.
 
 # Environments
 Currently, we have 3 environments:
-1. Mainnet: `v1.signer.near` // TODO: set when available
+1. Mainnet: `v1.signer`
 2. Testnet: `v1.sigenr-prod.testnet`
-3. Dev: `v1.signer-dev.testnet`
+3. Dev (unstable): `v1.signer-dev.testnet`
 
 Contracts can be changed from v1 to v2, etc. Older contracts should continue functioning.
\ No newline at end of file
diff --git a/chain-signatures/contract/src/lib.rs b/chain-signatures/contract/src/lib.rs
index cab89f5b9..02d88eff2 100644
--- a/chain-signatures/contract/src/lib.rs
+++ b/chain-signatures/contract/src/lib.rs
@@ -135,7 +135,7 @@ impl VersionedMpcContract {
         }
         // Check deposit
         let deposit = env::attached_deposit();
-        let required_deposit = self.signature_deposit();
+        let required_deposit = self.experimantal_signature_deposit();
         if deposit.as_yoctonear() < required_deposit {
             return Err(InvalidParameters::InsufficientDeposit.message(format!(
                 "Attached {}, Required {}",
@@ -208,6 +208,23 @@ impl VersionedMpcContract {
     pub const fn latest_key_version(&self) -> u32 {
         0
     }
+
+    /// This experimantal function calculates the fee for a signature request.
+    /// The fee is volatile and depends on the number of pending requests.
+    /// If used on a client side, it can give outdate results.
+    pub fn experimantal_signature_deposit(&self) -> u128 {
+        const CHEAP_REQUESTS: u32 = 3;
+        let pending_requests = match self {
+            Self::V0(mpc_contract) => mpc_contract.request_counter,
+        };
+        match pending_requests {
+            0..=CHEAP_REQUESTS => 1,
+            _ => {
+                (pending_requests - CHEAP_REQUESTS) as u128
+                    * NearToken::from_millinear(50).as_yoctonear()
+            }
+        }
+    }
 }
 
 // Node API
@@ -769,20 +786,6 @@ impl VersionedMpcContract {
         }
     }
 
-    fn signature_deposit(&self) -> u128 {
-        const CHEAP_REQUESTS: u32 = 3;
-        let pending_requests = match self {
-            Self::V0(mpc_contract) => mpc_contract.request_counter,
-        };
-        match pending_requests {
-            0..=CHEAP_REQUESTS => 1,
-            _ => {
-                (pending_requests - CHEAP_REQUESTS) as u128
-                    * NearToken::from_millinear(50).as_yoctonear()
-            }
-        }
-    }
-
     fn threshold(&self) -> Result<usize, Error> {
         match self {
             Self::V0(contract) => match &contract.protocol_state {