DFXswiss · bernd2022 · Feb 15, 2026 · Feb 15, 2026 · Feb 16, 2026 · Feb 16, 2026
@@ -21,6 +21,7 @@
     "dfip",
     "dilisense",
     "ebics",
+    "firo",
     "firstname",
     "forex",
     "frankencoin",

@@ -0,0 +1,19 @@
+name: 'firo'
+
+services:
+  firod:
+    image: firoorg/firod:0.14.15.2
+    restart: unless-stopped
+    volumes:
+      - ./volumes/firo:/home/firod/.firo
+    ports:
+      - '8168:8168'
+      - '8888:8888'
+    healthcheck:
+      test: firo-cli -conf=/home/firod/.firo/firo.conf getblockchaininfo || exit 1
+      start_period: 120s
+      interval: 30s
+      timeout: 60s
+      retries: 10
+    command: >
+      -conf=/home/firod/.firo/firo.conf
@@ -0,0 +1,26 @@
+# Firo Full Node Configuration (DFX Integration)
+# Based on firoorg/firo v0.14.15.2 source code
+
+# Server
+server=1
+listen=1
+daemon=0
+logtimestamps=1
+
+# RPC
+rpcuser=[RPC_USER]
+rpcpassword=[RPC_PASSWORD]
+rpcport=8888
+rpcbind=0.0.0.0
+rpcallowip=0.0.0.0/0
+
+# Indexes
+txindex=1
+addressindex=0
+timestampindex=0
+spentindex=0
+
+# Performance
+dbcache=1024
+maxconnections=125
+rpcthreads=8
@@ -225,3 +225,4 @@ id,name,type,buyable,sellable,chainId,sellCommand,dexName,category,blockchain,un
 113,BTC,Coin,TRUE,TRUE,,,BTC,Public,Bitcoin,Bitcoin/BTC,Bitcoin,FALSE,,87278.97353,FALSE,11,68819.65463,FALSE,FALSE,FALSE,FALSE,BTC,,TRUE,0,0,74099.1069,TRUE
 112,BNB,Coin,TRUE,TRUE,0xbb4cdb9cbd36b01bd1cbaebf2de08d9173bc095c,,BNB,Public,BinanceSmartChain,BinanceSmartChain/BNB,Binance Coin,FALSE,601,833.1583387,FALSE,36,656.9471065,FALSE,FALSE,FALSE,FALSE,Other,18,FALSE,0,0,707.34435,TRUE
 111,ETH,Coin,TRUE,TRUE,0xc02aaa39b223fe8d0a0e5c4f27ead9083c756cc2,,ETH,Public,Ethereum,Ethereum/ETH,Ether,FALSE,1,2922.079246,FALSE,6,2304.065646,FALSE,FALSE,FALSE,FALSE,Other,18,TRUE,0,0,2480.82045,TRUE
+409,FIRO,Coin,TRUE,TRUE,,,FIRO,Public,Firo,Firo/FIRO,,FALSE,,1.5,FALSE,,1.35,FALSE,FALSE,FALSE,FALSE,Other,8,FALSE,0,0,1.4,TRUE
@@ -149,6 +149,7 @@ export class Configuration {
   bitcoinAddressFormat = '([13]|bc1)[a-zA-HJ-NP-Z0-9]{25,62}';
   lightningAddressFormat = '(LNURL|LNDHUB)[A-Z0-9]{25,250}|LNNID[A-Z0-9]{66}';
   sparkAddressFormat = 'sp1[a-z0-9]{6,87}';
+  firoAddressFormat = 'a[a-zA-HJ-NP-Z0-9]{33}';
   moneroAddressFormat = '[48][0-9AB][1-9A-HJ-NP-Za-km-z]{93}';
   ethereumAddressFormat = '0x\\w{40}';
   liquidAddressFormat = '(VTp|VJL)[a-zA-HJ-NP-Z0-9]{77}';
@@ -161,13 +162,14 @@ export class Configuration {
   tronAddressFormat = 'T[1-9A-HJ-NP-Za-km-z]{32,34}';
   zanoAddressFormat = 'Z[a-zA-Z0-9]{96}|iZ[a-zA-Z0-9]{106}';
 
-  allAddressFormat = `${this.bitcoinAddressFormat}|${this.lightningAddressFormat}|${this.sparkAddressFormat}|${this.moneroAddressFormat}|${this.ethereumAddressFormat}|${this.liquidAddressFormat}|${this.arweaveAddressFormat}|${this.cardanoAddressFormat}|${this.defichainAddressFormat}|${this.railgunAddressFormat}|${this.solanaAddressFormat}|${this.tronAddressFormat}|${this.zanoAddressFormat}`;
+  allAddressFormat = `${this.bitcoinAddressFormat}|${this.lightningAddressFormat}|${this.sparkAddressFormat}|${this.firoAddressFormat}|${this.moneroAddressFormat}|${this.ethereumAddressFormat}|${this.liquidAddressFormat}|${this.arweaveAddressFormat}|${this.cardanoAddressFormat}|${this.defichainAddressFormat}|${this.railgunAddressFormat}|${this.solanaAddressFormat}|${this.tronAddressFormat}|${this.zanoAddressFormat}`;
 
   masterKeySignatureFormat = '[0-9a-fA-F]{8}\\b-[0-9a-fA-F]{4}\\b-[0-9a-fA-F]{4}\\b-[0-9a-fA-F]{4}\\b-[0-9a-fA-F]{12}';
   hashSignatureFormat = '[A-Fa-f0-9]{64}';
   bitcoinSignatureFormat = '(.{87}=|[A-Za-z0-9+/]+={0,2})';
   lightningSignatureFormat = '[a-z0-9]{104}';
   lightningCustodialSignatureFormat = '[a-z0-9]{140,146}';
+  firoSignatureFormat = '(.{87}=|[A-Za-z0-9+/]+={0,2})';
   moneroSignatureFormat = 'SigV\\d[0-9a-zA-Z]{88}';
   ethereumSignatureFormat = '(0x)?[a-f0-9]{130}';
   arweaveSignatureFormat = '[\\w\\-]{683}';
@@ -177,7 +179,7 @@ export class Configuration {
   tronSignatureFormat = '(0x)?[a-f0-9]{130}';
   zanoSignatureFormat = '[a-f0-9]{128}';
 
-  allSignatureFormat = `${this.masterKeySignatureFormat}|${this.hashSignatureFormat}|${this.bitcoinSignatureFormat}|${this.lightningSignatureFormat}|${this.lightningCustodialSignatureFormat}|${this.moneroSignatureFormat}|${this.ethereumSignatureFormat}|${this.arweaveSignatureFormat}|${this.cardanoSignatureFormat}|${this.railgunSignatureFormat}|${this.solanaSignatureFormat}|${this.tronSignatureFormat}|${this.zanoSignatureFormat}`;
+  allSignatureFormat = `${this.masterKeySignatureFormat}|${this.hashSignatureFormat}|${this.bitcoinSignatureFormat}|${this.lightningSignatureFormat}|${this.lightningCustodialSignatureFormat}|${this.firoSignatureFormat}|${this.moneroSignatureFormat}|${this.ethereumSignatureFormat}|${this.arweaveSignatureFormat}|${this.cardanoSignatureFormat}|${this.railgunSignatureFormat}|${this.solanaSignatureFormat}|${this.tronSignatureFormat}|${this.zanoSignatureFormat}`;
 
   arweaveKeyFormat = '[\\w\\-]{683}';
   cardanoKeyFormat = '.*';
@@ -628,10 +630,15 @@ export class Configuration {
     tronSeed: process.env.PAYMENT_TRON_SEED,
     cardanoSeed: process.env.PAYMENT_CARDANO_SEED,
     bitcoinAddress: process.env.PAYMENT_BITCOIN_ADDRESS,
+    firoAddress: process.env.PAYMENT_FIRO_ADDRESS,
     moneroAddress: process.env.PAYMENT_MONERO_ADDRESS,
     zanoAddress: process.env.PAYMENT_ZANO_ADDRESS,
     minConfirmations: (blockchain: Blockchain) =>
-      [Blockchain.ETHEREUM, Blockchain.BITCOIN, Blockchain.MONERO, Blockchain.ZANO].includes(blockchain) ? 6 : 100,
+      [Blockchain.ETHEREUM, Blockchain.BITCOIN, Blockchain.FIRO, Blockchain.MONERO, Blockchain.ZANO].includes(
+        blockchain,
+      )
+        ? 6
+        : 100,
     minVolume: 0.01, // CHF
     maxDepositBalance: 10000, // CHF
     cryptoPayoutMinAmount: +(process.env.PAYMENT_CRYPTO_PAYOUT_MIN ?? 1000), // CHF
@@ -882,6 +889,21 @@ export class Configuration {
       },
       certificate: process.env.LIGHTNING_API_CERTIFICATE?.split('<br>').join('\n'),
     },
+    spark: {
+      sparkWalletSeed: process.env.SPARK_WALLET_SEED,
+    },
+    firo: {
+      node: {
+        url: process.env.FIRO_NODE_URL,
+      },
+      user: process.env.FIRO_NODE_USER,
+      password: process.env.FIRO_NODE_PASSWORD,
+      walletPassword: process.env.FIRO_NODE_WALLET_PASSWORD,
+      walletAddress: process.env.FIRO_WALLET_ADDRESS,
+      allowUnconfirmedUtxos: process.env.FIRO_ALLOW_UNCONFIRMED_UTXOS === 'true',
+      cpfpFeeMultiplier: +(process.env.FIRO_CPFP_FEE_MULTIPLIER ?? '2.0'),
+      defaultFeeMultiplier: +(process.env.FIRO_DEFAULT_FEE_MULTIPLIER ?? '1.5'),
+    },
     monero: {
       node: {
         url: process.env.MONERO_NODE_URL,
@@ -892,6 +914,17 @@ export class Configuration {
       walletAddress: process.env.MONERO_WALLET_ADDRESS,
       certificate: process.env.MONERO_RPC_CERTIFICATE?.split('<br>').join('\n'),
     },
+    zano: {
+      node: {
+        url: process.env.ZANO_NODE_URL,
+      },
+      wallet: {
+        url: process.env.ZANO_WALLET_URL,
+        address: process.env.ZANO_WALLET_ADDRESS,
+      },
+      coinId: 'd6329b5b1f7c0805b5c345f4957554002a2f557845f64d7645dae0e051a6498a',
+      fee: 0.01,
+    },
     solana: {
       solanaWalletSeed: process.env.SOLANA_WALLET_SEED,
       solanaGatewayUrl: process.env.SOLANA_GATEWAY_URL,
@@ -938,20 +971,6 @@ export class Configuration {
         index: accountIndex,
       }),
     },
-    zano: {
-      node: {
-        url: process.env.ZANO_NODE_URL,
-      },
-      wallet: {
-        url: process.env.ZANO_WALLET_URL,
-        address: process.env.ZANO_WALLET_ADDRESS,
-      },
-      coinId: 'd6329b5b1f7c0805b5c345f4957554002a2f557845f64d7645dae0e051a6498a',
-      fee: 0.01,
-    },
-    spark: {
-      sparkWalletSeed: process.env.SPARK_WALLET_SEED,
-    },
     frankencoin: {
       zchfGraphUrl: process.env.ZCHF_GRAPH_URL,
       contractAddress: {

@@ -1,8 +1,8 @@
 import { Module } from '@nestjs/common';
 import { SharedModule } from 'src/shared/shared.module';
-import { BitcoinService } from './node/bitcoin.service';
 import { NodeController } from './node/node.controller';
 import { BitcoinFeeService } from './services/bitcoin-fee.service';
+import { BitcoinService } from './services/bitcoin.service';
 
 @Module({
   imports: [SharedModule],

@@ -14,12 +14,12 @@
  *   npm run test -- --testPathPattern=bitcoin-rpc.integration
  */
 
-import { Test, TestingModule } from '@nestjs/testing';
-import { ConfigModule } from '@nestjs/config';
-import { BitcoinService, BitcoinNodeType } from '../bitcoin.service';
-import { BitcoinClient } from '../bitcoin-client';
 import { HttpModule } from '@nestjs/axios';
+import { ConfigModule } from '@nestjs/config';
+import { Test, TestingModule } from '@nestjs/testing';
 import { HttpService } from 'src/shared/services/http.service';
+import { BitcoinNodeType, BitcoinService } from '../../services/bitcoin.service';
+import { BitcoinClient } from '../bitcoin-client';
 
 // Skip tests if no Bitcoin node is configured
 const SKIP_INTEGRATION_TESTS = !process.env.NODE_BTC_INP_URL_ACTIVE;

@@ -3,6 +3,7 @@ import { Asset } from 'src/shared/models/asset/asset.entity';
 import { HttpService } from 'src/shared/services/http.service';
 import { BlockchainTokenBalance } from '../../shared/dto/blockchain-token-balance.dto';
 import { BlockchainSignedTransactionResponse } from '../../shared/dto/signed-transaction-reponse.dto';
+import { CoinOnly } from '../../shared/util/blockchain-client';
 import { NodeClient, NodeClientConfig } from './node-client';
 
 export interface TransactionHistory {
@@ -24,7 +25,7 @@ export interface TestMempoolResult {
   'reject-reason': string;
 }
 
-export abstract class BitcoinBasedClient extends NodeClient {
+export abstract class BitcoinBasedClient extends NodeClient implements CoinOnly {
   constructor(http: HttpService, url: string, config: NodeClientConfig) {
     super(http, url, config);
   }

@@ -1,13 +1,13 @@
 import { BadRequestException, Body, Controller, Get, Param, Post, UseGuards } from '@nestjs/common';
-import { InWalletTransaction } from './node-client';
 import { AuthGuard } from '@nestjs/passport';
 import { ApiBearerAuth, ApiExcludeEndpoint } from '@nestjs/swagger';
 import { RoleGuard } from 'src/shared/auth/role.guard';
 import { UserActiveGuard } from 'src/shared/auth/user-active.guard';
 import { UserRole } from 'src/shared/auth/user-role.enum';
 import { HttpError } from 'src/shared/services/http.service';
-import { BitcoinNodeType, BitcoinService } from './bitcoin.service';
+import { BitcoinNodeType, BitcoinService } from '../services/bitcoin.service';
 import { CommandDto } from './dto/command.dto';
+import { InWalletTransaction } from './node-client';
 
 @Controller('node')
 export class NodeController {

@@ -5,9 +5,9 @@
  * including fee rate caching, TX fee rate lookup, and batch operations.
  */
 
-import { BitcoinFeeService } from '../bitcoin-fee.service';
-import { BitcoinService, BitcoinNodeType } from '../../node/bitcoin.service';
 import { BitcoinClient } from '../../node/bitcoin-client';
+import { BitcoinFeeService } from '../bitcoin-fee.service';
+import { BitcoinNodeType, BitcoinService } from '../bitcoin.service';
 
 describe('BitcoinFeeService', () => {
   let service: BitcoinFeeService;

@@ -2,6 +2,7 @@ import { createMock } from '@golevelup/ts-jest';
 import { Test } from '@nestjs/testing';
 import { ArweaveService } from 'src/integration/blockchain/arweave/services/arweave.service';
 import { CardanoService } from 'src/integration/blockchain/cardano/services/cardano.service';
+import { FiroService } from 'src/integration/blockchain/firo/services/firo.service';
 import { MoneroService } from 'src/integration/blockchain/monero/services/monero.service';
 import { Blockchain } from 'src/integration/blockchain/shared/enums/blockchain.enum';
 import { BlockchainRegistryService } from 'src/integration/blockchain/shared/services/blockchain-registry.service';
@@ -14,7 +15,7 @@ import { LightningService } from 'src/integration/lightning/services/lightning.s
 import { RailgunService } from 'src/integration/railgun/railgun.service';
 import { TestUtil } from 'src/shared/utils/test.util';
 import { UserAddressType } from 'src/subdomains/generic/user/models/user/user.enum';
-import { BitcoinService } from '../../node/bitcoin.service';
+import { BitcoinService } from '../bitcoin.service';
 
 describe('CryptoService', () => {
   beforeEach(async () => {
@@ -24,6 +25,7 @@ describe('CryptoService', () => {
         { provide: BitcoinService, useValue: createMock<BitcoinService>() },
         { provide: LightningService, useValue: createMock<LightningService>() },
         { provide: SparkService, useValue: createMock<SparkService>() },
+        { provide: FiroService, useValue: createMock<FiroService>() },
         { provide: MoneroService, useValue: createMock<MoneroService>() },
         { provide: ZanoService, useValue: createMock<ZanoService>() },
         { provide: SolanaService, useValue: createMock<SolanaService>() },
@@ -121,6 +123,10 @@ describe('CryptoService', () => {
     ).toEqual(UserAddressType.LN_NID);
   });
 
+  it('should return Blockchain.FIRO for address a8MuyHBKL3nYZKAa82x13FxqtExP2sQCqu', () => {
+    expect(CryptoService.getBlockchainsBasedOn('a8MuyHBKL3nYZKAa82x13FxqtExP2sQCqu')).toEqual([Blockchain.FIRO]);
+  });
+
   it('should return Blockchain.ETHEREUM and Blockchain.BINANCE_SMART_CHAIN for address 0x2d84553B3A4753009A314106d58F0CC21f441234', () => {
     expect(CryptoService.getBlockchainsBasedOn('0x2d84553B3A4753009A314106d58F0CC21f441234')).toEqual([
       Blockchain.ETHEREUM,

@@ -0,0 +1,77 @@
+import { DfxLogger } from 'src/shared/services/dfx-logger';
+import { AsyncCache, CacheItemResetPeriod } from 'src/shared/utils/async-cache';
+import { NodeClient } from '../node/node-client';
+
+export type TxFeeRateStatus = 'unconfirmed' | 'confirmed' | 'not_found' | 'error';
+
+export interface TxFeeRateResult {
+  status: TxFeeRateStatus;
+  feeRate?: number;
+}
+
+export abstract class BitcoinBasedFeeService {
+  private readonly logger = new DfxLogger(BitcoinBasedFeeService);
+
+  private readonly feeRateCache = new AsyncCache<number>(CacheItemResetPeriod.EVERY_30_SECONDS);
+  private readonly txFeeRateCache = new AsyncCache<TxFeeRateResult>(CacheItemResetPeriod.EVERY_30_SECONDS);
+
+  constructor(protected readonly client: NodeClient) {}
+
+  async getRecommendedFeeRate(): Promise<number> {
+    return this.feeRateCache.get(
+      'fastestFee',
+      async () => {
+        const feeRate = await this.client.estimateSmartFee(1);
+        if (feeRate === null) {
+          throw new Error('Failed to estimate fee rate from node');
+        }
+        return feeRate;
+      },
+      undefined,
+      true,
+    );
+  }
+
+  async getTxFeeRate(txid: string): Promise<TxFeeRateResult> {
+    return this.txFeeRateCache.get(
+      txid,
+      async () => {
+        try {
+          const entry = await this.client.getMempoolEntry(txid);
+
+          if (entry === null) {
+            const tx = await this.client.getTx(txid);
+            if (tx && tx.confirmations > 0) {
+              return { status: 'confirmed' as const };
+            }
+            return { status: 'not_found' as const };
+          }
+
+          return { status: 'unconfirmed' as const, feeRate: entry.feeRate };
+        } catch (e) {
+          this.logger.error(`Failed to get TX fee rate for ${txid}:`, e);
+          return { status: 'error' as const };
+        }
+      },
+      undefined,
+      true,
+    );
+  }
+
+  async getTxFeeRates(txids: string[]): Promise<Map<string, TxFeeRateResult>> {
+    const results = new Map<string, TxFeeRateResult>();
+
+    const promises = txids.map(async (txid) => {
+      const result = await this.getTxFeeRate(txid);
+      return { txid, result };
+    });
+
+    const responses = await Promise.all(promises);
+
+    for (const { txid, result } of responses) {
+      results.set(txid, result);
+    }
+
+    return results;
+  }
+}