diff --git a/tests/params.ts b/packages/translucent-core/params.ts
similarity index 97%
rename from tests/params.ts
rename to packages/translucent-core/params.ts
index 7b6466b..1bab634 100644
--- a/tests/params.ts
+++ b/packages/translucent-core/params.ts
@@ -1,6 +1,6 @@
 import { CostModels, ExUnits, Prices, ProtocolVersion } from "@cardano-sdk/core/dist/cjs/Cardano";
 
-interface ProtocolParameters {
+export interface ProtocolParameters {
     coinsPerUtxoByte: number,
     maxTxSize: number,
     minFeeCoefficient: number;
diff --git a/packages/translucent-core/types.ts b/packages/translucent-core/types.ts
index 14191ac..fb8b338 100644
--- a/packages/translucent-core/types.ts
+++ b/packages/translucent-core/types.ts
@@ -1,5 +1,6 @@
 import * as C from './core'
 import * as Crypto from './crypto'
+export { ProtocolParameters } from "./params"
 
 export const Value = C.Serialization.Value
 export type Value = C.Serialization.Value
diff --git a/packages/translucent-query/maestro.ts b/packages/translucent-query/maestro.ts
index 03efbd8..b11b41a 100644
--- a/packages/translucent-query/maestro.ts
+++ b/packages/translucent-query/maestro.ts
@@ -9,6 +9,7 @@ import {
   Transaction,
   TransactionOutput,
   HexBlob,
+  ProtocolParameters
 } from '../translucent-core'
 import { Provider } from './types'
 
@@ -25,7 +26,9 @@ export class Maestro implements Provider {
     return { "api-key": this.apiKey };
   }
 
-  getParameters(): Promise<typeof TxParams> {}
+  getParameters(): Promise<ProtocolParameters> {
+    throw new Error("unimplemented")
+  }
 
   getUnspentOutputs(address: Address): Promise<TransactionUnspentOutput[]> {
     /* todo: paginate */
diff --git a/packages/translucent-query/types.ts b/packages/translucent-query/types.ts
index 2ef7319..4299fdd 100644
--- a/packages/translucent-query/types.ts
+++ b/packages/translucent-query/types.ts
@@ -7,8 +7,8 @@ import {
   PlutusData,
   TransactionId,
   Transaction,
+  ProtocolParameters
 } from '../translucent-core'
-import { TxParams } from '../translucent-tx/tx'
 
 /**
  * Interface for the Provider class.
@@ -17,9 +17,9 @@ export interface Provider {
   /**
    * Retrieves the parameters for a transaction.
    *
-   * @returns {Promise<typeof TxParams>} - The parameters for a transaction.
+   * @returns {Promise<ProtocolParameters>} - The parameters for a transaction.
    */
-  getParameters(): Promise<typeof TxParams>
+  getParameters(): Promise<ProtocolParameters>
 
   /**
    * Retrieves the unspent outputs for a given address.