diff --git a/ChromaDB.Client/ChromaDBClient.cs b/ChromaDB.Client/ChromaDBClient.cs
index 93c7c8a..0adeea9 100644
--- a/ChromaDB.Client/ChromaDBClient.cs
+++ b/ChromaDB.Client/ChromaDBClient.cs
@@ -52,7 +52,7 @@ public async Task<Response<Heartbeat>> Heartbeat()
 		return await _httpClient.Get<Heartbeat>("", new RequestQueryParams());
 	}
 
-	public async Task<Response<Collection>> CreateCollection(string name, IDictionary<string, object>? metadata = null, string? tenant = null, string? database = null)
+	public async Task<Response<Collection>> CreateCollection(string name, Dictionary<string, object>? metadata = null, string? tenant = null, string? database = null)
 	{
 		tenant = tenant is not null and not [] ? tenant : _currentTenant.Name;
 		database = database is not null and not [] ? database : _currentDatabase.Name;
@@ -67,7 +67,7 @@ public async Task<Response<Collection>> CreateCollection(string name, IDictionar
 		return await _httpClient.Post<CreateCollectionRequest, Collection>("collections?tenant={tenant}&database={database}", request, requestParams);
 	}
 
-	public async Task<Response<Collection>> GetOrCreateCollection(string name, IDictionary<string, object>? metadata = null, string? tenant = null, string? database = null)
+	public async Task<Response<Collection>> GetOrCreateCollection(string name, Dictionary<string, object>? metadata = null, string? tenant = null, string? database = null)
 	{
 		tenant = tenant is not null and not [] ? tenant : _currentTenant.Name;
 		database = database is not null and not [] ? database : _currentDatabase.Name;
diff --git a/ChromaDB.Client/ChromaDBCollectionClient.cs b/ChromaDB.Client/ChromaDBCollectionClient.cs
index 87fc5cc..5623120 100644
--- a/ChromaDB.Client/ChromaDBCollectionClient.cs
+++ b/ChromaDB.Client/ChromaDBCollectionClient.cs
@@ -19,7 +19,7 @@ public ChromaDBCollectionClient(Collection collection, IChromaDBHttpClient httpC
 
 	public Collection Collection => _collection;
 
-	public async Task<Response<List<CollectionEntry>>> Get(List<string>? ids = null, IDictionary<string, object>? where = null, IDictionary<string, object>? whereDocument = null, int? limit = null, int? offset = null, List<string>? include = null)
+	public async Task<Response<List<CollectionEntry>>> Get(List<string>? ids = null, Dictionary<string, object>? where = null, Dictionary<string, object>? whereDocument = null, int? limit = null, int? offset = null, List<string>? include = null)
 	{
 		RequestQueryParams requestParams = new RequestQueryParams()
 			.Insert("{collection_id}", _collection.Id);
@@ -37,7 +37,7 @@ public async Task<Response<List<CollectionEntry>>> Get(List<string>? ids = null,
 		return new Response<List<CollectionEntry>>(response.StatusCode, entries, response.ErrorMessage);
 	}
 
-	public async Task<Response<List<List<CollectionQueryEntry>>>> Query(List<List<float>> queryEmbeddings, int nResults = 10, IDictionary<string, object>? where = null, IDictionary<string, object>? whereDocument = null, List<string>? include = null)
+	public async Task<Response<List<List<CollectionQueryEntry>>>> Query(List<List<float>> queryEmbeddings, int nResults = 10, Dictionary<string, object>? where = null, Dictionary<string, object>? whereDocument = null, List<string>? include = null)
 	{
 		RequestQueryParams requestParams = new RequestQueryParams()
 			.Insert("{collection_id}", _collection.Id);
@@ -54,7 +54,7 @@ public async Task<Response<List<List<CollectionQueryEntry>>>> Query(List<List<fl
 		return new Response<List<List<CollectionQueryEntry>>>(response.StatusCode, entries, response.ErrorMessage);
 	}
 
-	public async Task<Response<Response.Empty>> Add(List<string> ids, List<List<float>>? embeddings = null, List<IDictionary<string, object>>? metadatas = null, List<string>? documents = null)
+	public async Task<Response<Response.Empty>> Add(List<string> ids, List<List<float>>? embeddings = null, List<Dictionary<string, object>>? metadatas = null, List<string>? documents = null)
 	{
 		RequestQueryParams requestParams = new RequestQueryParams()
 			.Insert("{collection_id}", _collection.Id);
@@ -68,7 +68,7 @@ public async Task<Response<List<List<CollectionQueryEntry>>>> Query(List<List<fl
 		return await _httpClient.Post<CollectionAddRequest, Response.Empty>("collections/{collection_id}/add", request, requestParams);
 	}
 
-	public async Task<Response<Response.Empty>> Update(List<string> ids, List<List<float>>? embeddings = null, List<IDictionary<string, object>>? metadatas = null, List<string>? documents = null)
+	public async Task<Response<Response.Empty>> Update(List<string> ids, List<List<float>>? embeddings = null, List<Dictionary<string, object>>? metadatas = null, List<string>? documents = null)
 	{
 		RequestQueryParams requestParams = new RequestQueryParams()
 			.Insert("{collection_id}", _collection.Id);
@@ -82,7 +82,7 @@ public async Task<Response<List<List<CollectionQueryEntry>>>> Query(List<List<fl
 		return await _httpClient.Post<CollectionUpdateRequest, Response.Empty>("collections/{collection_id}/update", request, requestParams);
 	}
 
-	public async Task<Response<Response.Empty>> Upsert(List<string> ids, List<List<float>>? embeddings = null, List<IDictionary<string, object>>? metadatas = null, List<string>? documents = null)
+	public async Task<Response<Response.Empty>> Upsert(List<string> ids, List<List<float>>? embeddings = null, List<Dictionary<string, object>>? metadatas = null, List<string>? documents = null)
 	{
 		RequestQueryParams requestParams = new RequestQueryParams()
 			.Insert("{collection_id}", _collection.Id);
@@ -96,7 +96,7 @@ public async Task<Response<List<List<CollectionQueryEntry>>>> Query(List<List<fl
 		return await _httpClient.Post<CollectionUpsertRequest, Response.Empty>("collections/{collection_id}/upsert", request, requestParams);
 	}
 
-	public async Task<Response<Response.Empty>> Delete(List<string> ids, IDictionary<string, object>? where = null, IDictionary<string, object>? whereDocument = null)
+	public async Task<Response<Response.Empty>> Delete(List<string> ids, Dictionary<string, object>? where = null, Dictionary<string, object>? whereDocument = null)
 	{
 		RequestQueryParams requestParams = new RequestQueryParams()
 			.Insert("{collection_id}", _collection.Id);
@@ -129,7 +129,7 @@ public async Task<Response<List<CollectionEntry>>> Peek(int limit = 10)
 		return new Response<List<CollectionEntry>>(response.StatusCode, entries, response.ErrorMessage);
 	}
 
-	public async Task<Response<Response.Empty>> Modify(string? name = null, IDictionary<string, object>? metadata = null)
+	public async Task<Response<Response.Empty>> Modify(string? name = null, Dictionary<string, object>? metadata = null)
 	{
 		RequestQueryParams requestParams = new RequestQueryParams()
 			.Insert("{collection_id}", _collection.Id);
diff --git a/ChromaDB.Client/Common/Helpers/HttpClientHelpers.cs b/ChromaDB.Client/Common/Helpers/HttpClientHelpers.cs
index 184a8b9..1f0b0b2 100644
--- a/ChromaDB.Client/Common/Helpers/HttpClientHelpers.cs
+++ b/ChromaDB.Client/Common/Helpers/HttpClientHelpers.cs
@@ -148,10 +148,10 @@ private static string ValidateAndPrepareEndpoint(string endpoint, RequestQueryPa
 	private static string FormatRequestUri(string endpoint, RequestQueryParams queryParams)
 	{
 		string formattedEndpoint = endpoint;
-		foreach (KeyValuePair<string, string> entry in queryParams.Build())
+		foreach (var (key, value) in queryParams)
 		{
-			string urlEncodedQueryParam = Uri.EscapeDataString(entry.Value);
-			formattedEndpoint = formattedEndpoint.Replace(entry.Key, urlEncodedQueryParam);
+			string urlEncodedQueryParam = Uri.EscapeDataString(value);
+			formattedEndpoint = formattedEndpoint.Replace(key, urlEncodedQueryParam);
 		}
 		return formattedEndpoint;
 	}
diff --git a/ChromaDB.Client/IChromaDBClient.cs b/ChromaDB.Client/IChromaDBClient.cs
index 67bd441..b94ec5f 100644
--- a/ChromaDB.Client/IChromaDBClient.cs
+++ b/ChromaDB.Client/IChromaDBClient.cs
@@ -7,8 +7,8 @@ public interface IChromaDBClient
 	Task<Response<Collection>> GetCollection(string name, string? tenant = null, string? database = null);
 	Task<Response<List<Collection>>> ListCollections(string? tenant = null, string? database = null);
 	Task<Response<Heartbeat>> Heartbeat();
-	Task<Response<Collection>> CreateCollection(string name, IDictionary<string, object>? metadata = null, string? tenant = null, string? database = null);
-	Task<Response<Collection>> GetOrCreateCollection(string name, IDictionary<string, object>? metadata = null, string? tenant = null, string? database = null);
+	Task<Response<Collection>> CreateCollection(string name, Dictionary<string, object>? metadata = null, string? tenant = null, string? database = null);
+	Task<Response<Collection>> GetOrCreateCollection(string name, Dictionary<string, object>? metadata = null, string? tenant = null, string? database = null);
 	Task<Response<Response.Empty>> DeleteCollection(string name, string? tenant = null, string? database = null);
 	Task<Response<string>> GetVersion();
 	Task<Response<bool>> Reset();
diff --git a/ChromaDB.Client/IChromaDBCollectionClient.cs b/ChromaDB.Client/IChromaDBCollectionClient.cs
index c0bf8fe..057e258 100644
--- a/ChromaDB.Client/IChromaDBCollectionClient.cs
+++ b/ChromaDB.Client/IChromaDBCollectionClient.cs
@@ -6,13 +6,13 @@ public interface IChromaDBCollectionClient
 {
 	Collection Collection { get; }
 
-	Task<Response<List<CollectionEntry>>> Get(List<string>? ids = null, IDictionary<string, object>? where = null, IDictionary<string, object>? whereDocument = null, int? limit = null, int? offset = null, List<string>? include = null);
-	Task<Response<List<List<CollectionQueryEntry>>>> Query(List<List<float>> queryEmbeddings, int nResults = 10, IDictionary<string, object>? where = null, IDictionary<string, object>? whereDocument = null, List<string>? include = null);
-	Task<Response<Response.Empty>> Add(List<string> ids, List<List<float>>? embeddings = null, List<IDictionary<string, object>>? metadatas = null, List<string>? documents = null);
-	Task<Response<Response.Empty>> Update(List<string> ids, List<List<float>>? embeddings = null, List<IDictionary<string, object>>? metadatas = null, List<string>? documents = null);
-	Task<Response<Response.Empty>> Upsert(List<string> ids, List<List<float>>? embeddings = null, List<IDictionary<string, object>>? metadatas = null, List<string>? documents = null);
-	Task<Response<Response.Empty>> Delete(List<string> ids, IDictionary<string, object>? where = null, IDictionary<string, object>? whereDocument = null);
+	Task<Response<List<CollectionEntry>>> Get(List<string>? ids = null, Dictionary<string, object>? where = null, Dictionary<string, object>? whereDocument = null, int? limit = null, int? offset = null, List<string>? include = null);
+	Task<Response<List<List<CollectionQueryEntry>>>> Query(List<List<float>> queryEmbeddings, int nResults = 10, Dictionary<string, object>? where = null, Dictionary<string, object>? whereDocument = null, List<string>? include = null);
+	Task<Response<Response.Empty>> Add(List<string> ids, List<List<float>>? embeddings = null, List<Dictionary<string, object>>? metadatas = null, List<string>? documents = null);
+	Task<Response<Response.Empty>> Update(List<string> ids, List<List<float>>? embeddings = null, List<Dictionary<string, object>>? metadatas = null, List<string>? documents = null);
+	Task<Response<Response.Empty>> Upsert(List<string> ids, List<List<float>>? embeddings = null, List<Dictionary<string, object>>? metadatas = null, List<string>? documents = null);
+	Task<Response<Response.Empty>> Delete(List<string> ids, Dictionary<string, object>? where = null, Dictionary<string, object>? whereDocument = null);
 	Task<Response<int>> Count();
 	Task<Response<List<CollectionEntry>>> Peek(int limit = 10);
-	Task<Response<Response.Empty>> Modify(string? name = null, IDictionary<string, object>? metadata = null);
+	Task<Response<Response.Empty>> Modify(string? name = null, Dictionary<string, object>? metadata = null);
 }
diff --git a/ChromaDB.Client/Models/Collection.cs b/ChromaDB.Client/Models/Collection.cs
index 773a07d..f0aba23 100644
--- a/ChromaDB.Client/Models/Collection.cs
+++ b/ChromaDB.Client/Models/Collection.cs
@@ -11,7 +11,7 @@ public class Collection
 	public string Name { get; }
 
 	[JsonPropertyName("metadata")]
-	public IDictionary<string, object>? Metadata { get; init; }
+	public Dictionary<string, object>? Metadata { get; init; }
 
 	[JsonPropertyName("tenant")]
 	public string? Tenant { get; init; }
diff --git a/ChromaDB.Client/Models/Requests/CollectionAddRequest.cs b/ChromaDB.Client/Models/Requests/CollectionAddRequest.cs
index 69253e7..04dc8c4 100644
--- a/ChromaDB.Client/Models/Requests/CollectionAddRequest.cs
+++ b/ChromaDB.Client/Models/Requests/CollectionAddRequest.cs
@@ -11,7 +11,7 @@ internal class CollectionAddRequest
 	public List<List<float>>? Embeddings { get; init; }
 
 	[JsonPropertyName("metadatas")]
-	public List<IDictionary<string, object>>? Metadatas { get; init; }
+	public List<Dictionary<string, object>>? Metadatas { get; init; }
 
 	[JsonPropertyName("documents")]
 	public List<string>? Documents { get; init; }
diff --git a/ChromaDB.Client/Models/Requests/CollectionDeleteRequest.cs b/ChromaDB.Client/Models/Requests/CollectionDeleteRequest.cs
index 865b0ee..707ec6e 100644
--- a/ChromaDB.Client/Models/Requests/CollectionDeleteRequest.cs
+++ b/ChromaDB.Client/Models/Requests/CollectionDeleteRequest.cs
@@ -8,8 +8,8 @@ internal class CollectionDeleteRequest
 	public required List<string> Ids { get; init; }
 
 	[JsonPropertyName("where")]
-	public IDictionary<string, object>? Where { get; init; }
+	public Dictionary<string, object>? Where { get; init; }
 
 	[JsonPropertyName("where_document")]
-	public IDictionary<string, object>? WhereDocument { get; init; }
+	public Dictionary<string, object>? WhereDocument { get; init; }
 }
diff --git a/ChromaDB.Client/Models/Requests/CollectionGetRequest.cs b/ChromaDB.Client/Models/Requests/CollectionGetRequest.cs
index 5c9e4f2..44ef224 100644
--- a/ChromaDB.Client/Models/Requests/CollectionGetRequest.cs
+++ b/ChromaDB.Client/Models/Requests/CollectionGetRequest.cs
@@ -8,10 +8,10 @@ internal class CollectionGetRequest
 	public List<string>? Ids { get; init; }
 
 	[JsonPropertyName("where")]
-	public IDictionary<string, object>? Where { get; init; }
+	public Dictionary<string, object>? Where { get; init; }
 
 	[JsonPropertyName("where_document")]
-	public IDictionary<string, object>? WhereDocument { get; init; }
+	public Dictionary<string, object>? WhereDocument { get; init; }
 
 	[JsonPropertyName("limit")]
 	public int? Limit { get; init; }
diff --git a/ChromaDB.Client/Models/Requests/CollectionModifyRequest.cs b/ChromaDB.Client/Models/Requests/CollectionModifyRequest.cs
index 1f098d7..cd632b2 100644
--- a/ChromaDB.Client/Models/Requests/CollectionModifyRequest.cs
+++ b/ChromaDB.Client/Models/Requests/CollectionModifyRequest.cs
@@ -8,5 +8,5 @@ internal class CollectionModifyRequest
 	public string? Name { get; init; }
 
 	[JsonPropertyName("metadata")]
-	public IDictionary<string, object>? Metadata { get; init; }
+	public Dictionary<string, object>? Metadata { get; init; }
 }
diff --git a/ChromaDB.Client/Models/Requests/CollectionQueryRequest.cs b/ChromaDB.Client/Models/Requests/CollectionQueryRequest.cs
index cba6296..4869803 100644
--- a/ChromaDB.Client/Models/Requests/CollectionQueryRequest.cs
+++ b/ChromaDB.Client/Models/Requests/CollectionQueryRequest.cs
@@ -11,10 +11,10 @@ internal class CollectionQueryRequest
 	public int NResults { get; init; } = 10;
 
 	[JsonPropertyName("where")]
-	public IDictionary<string, object>? Where { get; init; }
+	public Dictionary<string, object>? Where { get; init; }
 
 	[JsonPropertyName("where_document")]
-	public IDictionary<string, object>? WhereDocument { get; init; }
+	public Dictionary<string, object>? WhereDocument { get; init; }
 
 	[JsonPropertyName("include")]
 	public required List<string> Include { get; init; }
diff --git a/ChromaDB.Client/Models/Requests/CollectionUpdateRequest.cs b/ChromaDB.Client/Models/Requests/CollectionUpdateRequest.cs
index d78a9f8..bc2c9c6 100644
--- a/ChromaDB.Client/Models/Requests/CollectionUpdateRequest.cs
+++ b/ChromaDB.Client/Models/Requests/CollectionUpdateRequest.cs
@@ -11,7 +11,7 @@ internal class CollectionUpdateRequest
 	public List<List<float>>? Embeddings { get; init; }
 
 	[JsonPropertyName("metadatas")]
-	public List<IDictionary<string, object>>? Metadatas { get; init; }
+	public List<Dictionary<string, object>>? Metadatas { get; init; }
 
 	[JsonPropertyName("documents")]
 	public List<string>? Documents { get; init; }
diff --git a/ChromaDB.Client/Models/Requests/CollectionUpsertRequest.cs b/ChromaDB.Client/Models/Requests/CollectionUpsertRequest.cs
index d31cd1f..4c5ea37 100644
--- a/ChromaDB.Client/Models/Requests/CollectionUpsertRequest.cs
+++ b/ChromaDB.Client/Models/Requests/CollectionUpsertRequest.cs
@@ -11,7 +11,7 @@ internal class CollectionUpsertRequest
 	public List<List<float>>? Embeddings { get; init; }
 
 	[JsonPropertyName("metadatas")]
-	public List<IDictionary<string, object>>? Metadatas { get; init; }
+	public List<Dictionary<string, object>>? Metadatas { get; init; }
 
 	[JsonPropertyName("documents")]
 	public List<string>? Documents { get; init; }
diff --git a/ChromaDB.Client/Models/Requests/GetOrCreateCollectionRequestBase.cs b/ChromaDB.Client/Models/Requests/GetOrCreateCollectionRequestBase.cs
index 2573172..0c248d4 100644
--- a/ChromaDB.Client/Models/Requests/GetOrCreateCollectionRequestBase.cs
+++ b/ChromaDB.Client/Models/Requests/GetOrCreateCollectionRequestBase.cs
@@ -8,7 +8,7 @@ internal abstract class GetOrCreateCollectionRequestBase
 	public required string Name { get; init; }
 
 	[JsonPropertyName("metadata")]
-	public IDictionary<string, object>? Metadata { get; init; }
+	public Dictionary<string, object>? Metadata { get; init; }
 
 	[JsonInclude]
 	[JsonPropertyName("get_or_create")]
diff --git a/ChromaDB.Client/Models/Requests/RequestQueryParams.cs b/ChromaDB.Client/Models/Requests/RequestQueryParams.cs
index 9022dd4..f9d4cdb 100644
--- a/ChromaDB.Client/Models/Requests/RequestQueryParams.cs
+++ b/ChromaDB.Client/Models/Requests/RequestQueryParams.cs
@@ -1,8 +1,9 @@
-using System.Globalization;
+using System.Collections;
+using System.Globalization;
 
 namespace ChromaDB.Client.Models.Requests;
 
-internal class RequestQueryParams
+internal class RequestQueryParams : IEnumerable<(string key, string value)>
 {
 	private Dictionary<string, string> _queryParams;
 
@@ -11,12 +12,18 @@ public RequestQueryParams()
 		_queryParams = new Dictionary<string, string>(StringComparer.Ordinal);
 	}
 
+	public IEnumerator<(string key, string value)> GetEnumerator()
+		=> _queryParams
+			.Select(kvp => (kvp.Key, kvp.Value))
+			.GetEnumerator();
+	IEnumerator IEnumerable.GetEnumerator() => GetEnumerator();
+
 	public RequestQueryParams Insert(string key, string value)
 	{
 		_queryParams[key] = value;
 		return this;
 	}
-	public RequestQueryParams Insert(string key, IFormattable value) => Insert(key, value.ToString(null, CultureInfo.InvariantCulture));
+	public RequestQueryParams Insert(string key, IFormattable value)
+		=> Insert(key, value.ToString(null, CultureInfo.InvariantCulture));
 
-	public IDictionary<string, string> Build() => _queryParams;
 }