diff --git a/commands/station.js b/commands/station.js
index d139b30e..226e6aa6 100644
--- a/commands/station.js
+++ b/commands/station.js
@@ -12,7 +12,6 @@ import { ethAddressFromDelegated, isEthAddress } from '@glif/filecoin-address'
 import { ethers, formatEther } from 'ethers'
 import { runUpdateRewardsLoop } from '../lib/rewards.js'
 import { runUpdateContractsLoop } from '../lib/contracts.js'
-import { fileURLToPath } from 'node:url'
 
 const {
   FIL_WALLET_ADDRESS,
@@ -110,17 +109,10 @@ export const station = async ({ json, experimental }) => {
     'Bearer RXQ2SKH/BVuwN7wisZh3b5uXStGPj1JQIrIWD+rxF0Y='
   )
   const provider = new ethers.JsonRpcProvider(fetchRequest)
-  const abi = JSON.parse(
-    await fs.readFile(
-      fileURLToPath(new URL('../lib/abi.json', import.meta.url)),
-      'utf8'
-    )
-  )
 
   await Promise.all([
     zinniaRuntime.run({
       provider,
-      abi,
       STATION_ID,
       FIL_WALLET_ADDRESS: ethAddress,
       ethAddress,
@@ -143,7 +135,6 @@ export const station = async ({ json, experimental }) => {
     runMachinesLoop({ STATION_ID }),
     runUpdateContractsLoop({
       provider,
-      abi,
       contracts,
       onActivity: (activity) => activities.submit(activity)
     }),
diff --git a/lib/contracts.js b/lib/contracts.js
index ebba88c4..180dacdf 100644
--- a/lib/contracts.js
+++ b/lib/contracts.js
@@ -2,6 +2,7 @@ import timers from 'node:timers/promises'
 import pRetry from 'p-retry'
 import * as Name from 'w3name'
 import { ethers } from 'ethers'
+import * as SparkImpactEvaluator from '@filecoin-station/spark-impact-evaluator'
 
 const {
   // https://github.com/filecoin-station/contract-addresses
@@ -10,11 +11,11 @@ const {
 
 const DELAY_IN_MINUTES = 10
 
-export const runUpdateContractsLoop = async ({ provider, abi, contracts, onActivity }) => {
+export const runUpdateContractsLoop = async ({ provider, contracts, onActivity }) => {
   await timers.setTimeout(2_000)
   while (true) {
     try {
-      const newContracts = await getContractsWithRetry({ provider, abi })
+      const newContracts = await getContractsWithRetry({ provider })
       contracts.splice(0)
       contracts.push(...newContracts)
     } catch (err) {
@@ -36,7 +37,7 @@ export const runUpdateContractsLoop = async ({ provider, abi, contracts, onActiv
   }
 }
 
-async function getContractsWithRetry ({ provider, abi }) {
+async function getContractsWithRetry ({ provider }) {
   const contractAddresses = await pRetry(getContractAddresses, {
     retries: 10,
     onFailedAttempt: err => {
@@ -54,7 +55,7 @@ async function getContractsWithRetry ({ provider, abi }) {
   })
   console.error(`Meridian contract addresses: ${contractAddresses.join(', ')}`)
   return contractAddresses.map(address => {
-    return new ethers.Contract(address, abi, provider)
+    return new ethers.Contract(address, SparkImpactEvaluator.ABI, provider)
   })
 }
 
diff --git a/lib/zinnia.js b/lib/zinnia.js
index 38df364f..32980000 100644
--- a/lib/zinnia.js
+++ b/lib/zinnia.js
@@ -206,7 +206,6 @@ const catchChildProcessExit = async ({
 
 export async function run ({
   provider,
-  abi,
   STATION_ID,
   FIL_WALLET_ADDRESS,
   ethAddress,
@@ -331,7 +330,6 @@ export async function run ({
   // size, as awaiting promises unwinds the stack
   return run({
     provider,
-    abi,
     STATION_ID,
     FIL_WALLET_ADDRESS,
     ethAddress,
diff --git a/package-lock.json b/package-lock.json
index fdf635ce..5ca25514 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,6 +10,7 @@
       "hasInstallScript": true,
       "license": "(Apache-2.0 AND MIT)",
       "dependencies": {
+        "@filecoin-station/spark-impact-evaluator": "^1.1.0",
         "@glif/filecoin-address": "^3.0.0",
         "@influxdata/influxdb-client": "^1.33.2",
         "@ipld/car": "^5.2.6",
@@ -282,6 +283,11 @@
         "node": "^12.22.0 || ^14.17.0 || >=16.0.0"
       }
     },
+    "node_modules/@filecoin-station/spark-impact-evaluator": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@filecoin-station/spark-impact-evaluator/-/spark-impact-evaluator-1.1.0.tgz",
+      "integrity": "sha512-+gjybrU5nEmCHWjFk903SBbSOQUCzkMAVSSX1jVUb9hOr1rh96Kq9miSVaQ89eygO2lZDGIUrT5HomFqK7Ki8w=="
+    },
     "node_modules/@glif/filecoin-address": {
       "version": "3.0.5",
       "resolved": "https://registry.npmjs.org/@glif/filecoin-address/-/filecoin-address-3.0.5.tgz",
@@ -10282,6 +10288,11 @@
       "integrity": "sha512-LxcyMGxwmTh2lY9FwHPGWOHmYFCZvbrFCBZL4FzSSsxsRPuhrYUg/49/0KDfW8tnIEaEHtfmn6+NPN+1DqaNmA==",
       "dev": true
     },
+    "@filecoin-station/spark-impact-evaluator": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/@filecoin-station/spark-impact-evaluator/-/spark-impact-evaluator-1.1.0.tgz",
+      "integrity": "sha512-+gjybrU5nEmCHWjFk903SBbSOQUCzkMAVSSX1jVUb9hOr1rh96Kq9miSVaQ89eygO2lZDGIUrT5HomFqK7Ki8w=="
+    },
     "@glif/filecoin-address": {
       "version": "3.0.5",
       "resolved": "https://registry.npmjs.org/@glif/filecoin-address/-/filecoin-address-3.0.5.tgz",
diff --git a/package.json b/package.json
index e23be130..965a8cd5 100644
--- a/package.json
+++ b/package.json
@@ -46,6 +46,7 @@
     "typescript": "^5.0.4"
   },
   "dependencies": {
+    "@filecoin-station/spark-impact-evaluator": "^1.1.0",
     "@glif/filecoin-address": "^3.0.0",
     "@influxdata/influxdb-client": "^1.33.2",
     "@ipld/car": "^5.2.6",