diff --git a/packages/xchain-client/README.md b/packages/xchain-client/README.md
index 7d99e6edc..40f684e48 100644
--- a/packages/xchain-client/README.md
+++ b/packages/xchain-client/README.md
@@ -1,6 +1,6 @@
 # XChainJS Wallet Client Interface
 
-A specification for a generalised interface for crypto wallets clients, to be used by XChainJS implementations. The client should not have any functionality to generate a key, instead, the `asgardex-crypto` library should be used to ensure cross-chain compatible keystores are handled. The client is only ever passed a master BIP39 phrase, from which a temporary key and address is decoded.
+A specification for a generalised interface for crypto wallets clients, to be used by XChainJS implementations. The client should not have any functionality to generate a key, instead, the `xchain-crypto` library should be used to ensure cross-chain compatible keystores are handled. The client is only ever passed a master BIP39 phrase, from which a temporary key and address is decoded.
 
 ## Documentation
 
diff --git a/packages/xchain-cosmos-sdk/src/client.ts b/packages/xchain-cosmos-sdk/src/client.ts
index 47cfb276e..bb9a8d9be 100644
--- a/packages/xchain-cosmos-sdk/src/client.ts
+++ b/packages/xchain-cosmos-sdk/src/client.ts
@@ -36,7 +36,7 @@ export type CosmosSdkClientParams = XChainClientParams & {
 }
 
 /**
- * Cosmos-sdk client
+ * Generic implementation of the XChainClient interface chains built with cosmos-sdk (https://docs.cosmos.network/) using the dependencies of the official @cosmjs monorepo.
  */
 export default abstract class Client extends BaseXChainClient implements XChainClient {
   private readonly startgateClient: CachedValue<StargateClient>
@@ -48,6 +48,8 @@ export default abstract class Client extends BaseXChainClient implements XChainC
   protected readonly baseDenom: string
   /**
    * Constructor
+   * @constructor
+   * @param {CosmosSdkClientParams} params client configuration (prefix, decimal, fees, urls...)
    */
   constructor(params: CosmosSdkClientParams) {
     super(params.chain, params)
@@ -70,7 +72,10 @@ export default abstract class Client extends BaseXChainClient implements XChainC
   }
 
   /**
-   * Give 300000uatom return { amount: 300000, denom: uatom }
+   * @private
+   * Split on amount and denom strings with format 300000uatom
+   * @param {string[]} amountsAndDenoms strings with format 3000uatom
+   * @returns {Array} array of strings splitted { amount: 300000, denom: uatom }
    */
   private splitAmountAndDenom(amountsAndDenoms: string[]) {
     const amounAndDenomParsed: { amount: string; denom: string }[] = []
@@ -87,6 +92,12 @@ export default abstract class Client extends BaseXChainClient implements XChainC
     return amounAndDenomParsed
   }
 
+  /**
+   * @private
+   * Function that transforms the transaction type returned by cosmjs to the transaction type used by xchainjs.
+   * @param {IndexedTx} indexedTx transaction to transform
+   * @returns {Tx} transaction with xchainjs format
+   */
   private async mapIndexedTxToTx(indexedTx: IndexedTx): Promise<Tx> {
     const mapTo: Map<Address, { amount: BaseAmount; asset: Asset | undefined }> = new Map()
     const mapFrom: Map<Address, { amount: BaseAmount; asset: Asset | undefined }> = new Map()
@@ -181,6 +192,11 @@ export default abstract class Client extends BaseXChainClient implements XChainC
     }
   }
 
+  /**
+   * This function returns the fee object in a generalised way for a simple transfer function. In this case this funcion use the default fee
+   * defined in the constructor.
+   * @returns {Fees} fees estimation for average, fast and fastests scenarios.
+   */
   getFees(): Promise<Fees> {
     return Promise.resolve(singleFee(FeeType.FlatFee, this.defaultFee))
   }
@@ -194,6 +210,11 @@ export default abstract class Client extends BaseXChainClient implements XChainC
     }
   }
 
+  /**
+   * Get an address derived from the phrase defined in the constructor.
+   * @param {number | undefined} walletIndex derivation path index of address that will be generated
+   * @returns {string} user address at index defined on walletIndex
+   */
   public getAddress(walletIndex?: number | undefined): string {
     const seed = xchainCrypto.getSeed(this.phrase)
     const node = BIP32.fromSeed(seed)
@@ -209,6 +230,11 @@ export default abstract class Client extends BaseXChainClient implements XChainC
     return address
   }
 
+  /**
+   * Validate the address format.
+   * @param {string} address address to be validated
+   * @returns {boolean} represents whether the address is valid or invalid
+   */
   public validateAddress(address: string): boolean {
     try {
       const { prefix: decodedPrefix } = fromBech32(address)
@@ -221,6 +247,13 @@ export default abstract class Client extends BaseXChainClient implements XChainC
     }
   }
 
+  /**
+   * Obtains all the balances of the address passed as parameter for all the assets of the network. For the moment for this client the assets parameter is ignored.
+   * Do not hesitate to open a PR if you need it and it is not yet available.
+   * @param {string} address address to be validated
+   * @param {Asset[] | undefined} _assets IGNORED FOR THIS IMPLEMENTATION
+   * @returns {Balance[]} array of balances
+   */
   public async getBalance(address: string, _assets?: Asset[] | undefined): Promise<Balance[]> {
     const client = await this.startgateClient.getValue()
     const result = await client.getAllBalances(address)
@@ -238,6 +271,11 @@ export default abstract class Client extends BaseXChainClient implements XChainC
     return balances
   }
 
+  /**
+   * Get transactions filtered using params
+   * @param {TxHistoryParams | undefined} params Only param address IS SUPPORTED FOR THIS CLIENT, new feature will be added in the future
+   * @returns {TxsPage} array of balances
+   */
   public async getTransactions(params?: TxHistoryParams | undefined): Promise<TxsPage> {
     // TODO: Use all filters
     if (params?.startTime || params?.limit || params?.offset) {
@@ -271,6 +309,11 @@ export default abstract class Client extends BaseXChainClient implements XChainC
     }
   }
 
+  /**
+   * Get transaction info using txId
+   * @param {string} txId Idetifier of transaction
+   * @returns {Tx} Transaction data
+   */
   public async getTransactionData(txId: string, _assetAddress?: string | undefined): Promise<Tx> {
     const client = await this.startgateClient.getValue()
     const tx = await client.getTx(txId)
diff --git a/packages/xchain-evm-providers/README.md b/packages/xchain-evm-providers/README.md
index 0adea94dd..5aacf0213 100644
--- a/packages/xchain-evm-providers/README.md
+++ b/packages/xchain-evm-providers/README.md
@@ -1,6 +1,6 @@
 # XChainJS API UTXO providers Interface
 
-A specification for a generalised interface for api providers, to be used by XChainJS implementations. The providers should not have any functionality to generate a key, instead, the `asgardex-crypto` library should be used to ensure cross-chain compatible keystores are handled. The providers is only ever passed a master BIP39 phrase, from which a temporary key and address is decoded.
+A specification for a generalised interface for api providers, to be used by XChainJS implementations. The providers should not have any functionality to generate a key, instead, the `xchain-crypto` library should be used to ensure cross-chain compatible keystores are handled. The providers is only ever passed a master BIP39 phrase, from which a temporary key and address is decoded.
 
 ## Documentation
 
diff --git a/packages/xchain-midgard-query/src/midgard-cache.ts b/packages/xchain-midgard-query/src/midgard-cache.ts
index 923779c60..613a47ba5 100644
--- a/packages/xchain-midgard-query/src/midgard-cache.ts
+++ b/packages/xchain-midgard-query/src/midgard-cache.ts
@@ -9,7 +9,7 @@ const MILLISECOND_CACHE_SAVERS = 5000
 const defaultMidgard = new Midgard()
 
 /**
- * This class manages retrieving information from Midgard API and cached it
+ * This class retrieves raw information from Midgard API and cached it
  */
 export class MidgardCache {
   readonly midgard: Midgard
@@ -18,7 +18,7 @@ export class MidgardCache {
   /**
    * Constructor to create a ThorchainCache
    *
-   * @param midgard - an instance of the midgard API (could be pointing to stagenet,testnet,mainnet)
+   * @param {Midgard} midgard - an instance of the midgard API (could be pointing to stagenet,testnet,mainnet)
    * @returns MidgardCache
    */
   constructor(midgard = defaultMidgard) {
@@ -27,10 +27,21 @@ export class MidgardCache {
     this.cachedSavers = new CachedValue<SaverDetails>(() => this.midgard.getSavers(''), MILLISECOND_CACHE_SAVERS)
   }
 
+  /**
+   * Get info about existing pools in the protocol from Midgard API
+   *
+   * @returns {PoolDetail[]} Array of pools
+   */
   public async getPools(): Promise<PoolDetail[]> {
     return this.cachedPools.getValue()
   }
 
+  /**
+   * Returns the information of all the positions of a set of addresses in the THORChain savers product.
+   *
+   * @param {String} address Comma separated list of addresses
+   * @returns {SaverDetails} Array of savers positions
+   */
   public async getSavers(address: string): Promise<SaverDetails> {
     return this.cachedSavers.getValue(address)
   }
diff --git a/packages/xchain-midgard-query/src/midgard-query.ts b/packages/xchain-midgard-query/src/midgard-query.ts
index f3391a30a..e5335ffcf 100644
--- a/packages/xchain-midgard-query/src/midgard-query.ts
+++ b/packages/xchain-midgard-query/src/midgard-query.ts
@@ -10,21 +10,28 @@ const DEFAULT_THORCHAIN_DECIMALS = 8
 const defaultCache = new MidgardCache()
 
 /**
- * THORChain Class for getting  data from Midgard API (THORChain L2 Api).
+ * Class for getting data and process from Midgard API using MidgardCache for optimize request number (THORChain L2 Api).
  */
 export class MidgardQuery {
   readonly midgardCache: MidgardCache
 
   /**
-   * Contructor to create a ThorchainAMM
+   * Contructor to create a MidgardQuery
    *
    * @param midgardCache - an instance of the midgardCache (could be pointing to stagenet,testnet,mainnet)
-   * @returns ThorchainAMM
+   * @returns MidgardQuery
    */
   constructor(midgardCache = defaultCache) {
     this.midgardCache = midgardCache
   }
 
+  /**
+   * Get pool by asset
+   *
+   * @param {string} asset In example: BTC.BTC
+   * @returns {PoolDetail} Details of selected pool
+   * @throws {Error} Can't find pool for asset
+   */
   private async getPool(asset: string): Promise<PoolDetail> {
     const pools = await this.midgardCache.getPools()
     const pool = pools.find((pool) => pool.asset === asset)
@@ -34,6 +41,12 @@ export class MidgardQuery {
     return pool
   }
 
+  /**
+   * Get saver positions by array of saver descriptions
+   *
+   * @param {getSaver[]} params array of search conditions
+   * @returns {SaversPosition[]} Information on the positions found
+   */
   public async getSaverPositions(params: getSaver[]): Promise<SaversPosition[]> {
     const addresses: Set<string> = new Set<string>()
     params.forEach((param) => addresses.add(param.address))
@@ -72,6 +85,12 @@ export class MidgardQuery {
     return saversPositions
   }
 
+  /**
+   * Returns number of decimals by asset
+   *
+   * @param {Asset} asset asset for getting decimals
+   * @returns {number} Number of decimals from Midgard https://gitlab.com/thorchain/midgard#refresh-native-decimals
+   */
   public async getDecimalForAsset(asset: Asset): Promise<number> {
     if (!isAssetRuneNative(asset)) {
       const pool = await this.getPool(assetToString(asset))
diff --git a/packages/xchain-midgard-query/src/types.ts b/packages/xchain-midgard-query/src/types.ts
index ef33b749a..61e392a13 100644
--- a/packages/xchain-midgard-query/src/types.ts
+++ b/packages/xchain-midgard-query/src/types.ts
@@ -1,5 +1,8 @@
 import { Address, Asset, CryptoAmount } from '@xchainjs/xchain-util'
 
+/**
+ * Search parameters to search for positions within the THORChain SAVER investment product trunks.
+ */
 export type getSaver = {
   asset: Asset
   address: Address
diff --git a/packages/xchain-midgard-query/src/utils/midgard.ts b/packages/xchain-midgard-query/src/utils/midgard.ts
index dfe9b3703..3527efeb7 100644
--- a/packages/xchain-midgard-query/src/utils/midgard.ts
+++ b/packages/xchain-midgard-query/src/utils/midgard.ts
@@ -52,7 +52,7 @@ export class Midgard {
         const saverDetails = (await api.getSaverDetail(address)).data
         return saverDetails
       } catch (e) {
-        //console.error(e)
+        // console.error(e)
       }
     }
     throw Error(`Midgard not responding`)
@@ -67,7 +67,7 @@ export class Midgard {
       try {
         return (await api.getPools()).data
       } catch (e) {
-        //console.error(e)
+        // console.error(e)
       }
     }
     throw new Error(`Midgard not responding`)
diff --git a/packages/xchain-util/src/cached-value.ts b/packages/xchain-util/src/cached-value.ts
index c5e458333..ec183af0e 100644
--- a/packages/xchain-util/src/cached-value.ts
+++ b/packages/xchain-util/src/cached-value.ts
@@ -1,4 +1,8 @@
 /* eslint-disable @typescript-eslint/no-explicit-any */
+
+/**
+ * Utility class for caching stable data
+ */
 export class CachedValue<T> {
   private cachedValue: T | undefined
   private cacheTimestamp: Date | undefined
@@ -6,15 +10,28 @@ export class CachedValue<T> {
   private refreshData: (params?: any) => Promise<T>
   private refreshPromise: Promise<T> | null = null
 
+  /**
+   * @constructor
+   * @param refreshData function that refresh and return the data
+   * @param {number|undefined} cacheMaxAge time in millisecond to expire cache
+   */
   constructor(refreshData: (params?: any) => Promise<T>, cacheMaxAge?: number) {
     this.cacheMaxAge = cacheMaxAge || Infinity
     this.refreshData = refreshData
   }
 
+  /**
+   * @private
+   * Validates if internal cache is valid or expired
+   */
   private isCacheValid() {
     return Boolean(this.cacheTimestamp && new Date().getTime() - this.cacheTimestamp.getTime() < this.cacheMaxAge)
   }
 
+  /**
+   * Returns cached data if valid or request fresh data if cache is invalid
+   * @param params use this params to request data if cache is expired
+   */
   async getValue(params?: any): Promise<T> {
     if (this.isCacheValid()) {
       return this.cachedValue as T
diff --git a/packages/xchain-utxo-providers/README.md b/packages/xchain-utxo-providers/README.md
index 907f53826..2a7a88f33 100644
--- a/packages/xchain-utxo-providers/README.md
+++ b/packages/xchain-utxo-providers/README.md
@@ -1,6 +1,6 @@
 # XChainJS API UTXO providers Interface
 
-A specification for a generalised interface for api providers, to be used by XChainJS implementations. The providers should not have any functionality to generate a key, instead, the `asgardex-crypto` library should be used to ensure cross-chain compatible keystores are handled. The providers is only ever passed a master BIP39 phrase, from which a temporary key and address is decoded.
+A specification for a generalised interface for api providers, to be used by XChainJS implementations. The providers should not have any functionality to generate a key, instead, the `xchain-crypto` library should be used to ensure cross-chain compatible keystores are handled. The providers is only ever passed a master BIP39 phrase, from which a temporary key and address is decoded.
 
 ## Documentation