Defly Wallet integration & Algorand OpenFinance APIs

1. Address linking & session management

We mirror the Defly Connect handshake on the server: pair via WalletConnect topic, persist session.namespaces.algorand, and refresh sessions when the mobile wallet returns from background. This is the foundation for multi-account dashboards and CRM-side Algorand wallet binding.

2. Transaction history API

Indexer-backed endpoint that returns paginated pay, axfer, appl and inner transactions for one or more addresses, normalised into a single schema. Used for reconciliation, tax exports and on-chain audit trails.

3. Portfolio & ASA balance sync

Live balances for ALGO and every Algorand Standard Asset, with USD valuation pulled from Defly's market-data feeds. Powers treasury dashboards, NAV calculations and DeFi-aware portfolio statements.

4. DeFi position parser

Decodes app-call state from Tinyman, Pact, Folks Finance and AlgoFi-derived contracts the same way the Defly app does, exposing farming, staking and lending positions as structured rows. Useful for risk reporting and yield analytics.

5. Swap routing through Deflex

Server-to-server quote and execution wrapper around Deflex order routing. Splits orders across DEXs to minimise slippage, then returns a Defly-compatible group transaction the wallet can sign. Used for programmatic rebalancing and OTC desks.

6. Webhook & alert pipeline

Address-watch webhooks fire when ALGO or ASA balances change, when a DeFi position crosses a threshold, or when a multi-sig proposal is awaiting signature. Integrates with Slack, PagerDuty or your internal alerting stack.

A. Crypto accounting & tax export

An accounting SaaS needs to pull Defly users' Algorand transactions into a unified ledger. We bind addresses through Defly Connect, walk the indexer for pay and axfer transactions, classify inner transactions from app calls, and emit CSV / QuickBooks / Xero exports. The data is enriched with Defly's USD pricing so cost basis is consistent with what users see in the app.

B. DAO & treasury dashboards

A foundation runs treasury through a Defly multi-sig. We build a read-only board that shows balances across all signing accounts, current DeFi positions on Tinyman or Folks Finance, and pending multi-sig proposals. Each proposal links back into Defly for human signing — no private keys touch the dashboard.

C. Best-execution swap router

A trading desk routes orders through Deflex from a server: our wrapper requests a quote, receives the route, builds the Algorand transaction group, then ships it to the user's Defly app for signing through Defly Connect. Execution metrics (slippage, gas, fill ratio) are returned as a webhook for OpenFinance-style audit.

D. Compliance & AML feed

A regulated venue must screen Algorand counterparties before settlement. We expose an address-risk endpoint that combines on-chain heuristics, ASA reputation lists and Defly's account labelling. Hits are logged with the Travel-Rule envelope so the venue can satisfy FATF expectations.

E. Cross-wallet portfolio aggregator

End-users typically hold ALGO across Defly, Pera and a Ledger device. We build an aggregator that pulls each address through one common schema, deduplicates ASA holdings, and presents one DeFi-aware portfolio. This is the most-requested OpenFinance flow we see in the Algorand ecosystem.

Defly Connect: pair & sign

// JavaScript — @blockshake/defly-connect
import { DeflyWalletConnect } from '@blockshake/defly-connect';
import algosdk from 'algosdk';

const wallet = new DeflyWalletConnect({ network: 'mainnet' });
const accounts = await wallet.connect();          // user approves in Defly app

const txn = algosdk.makePaymentTxnWithSuggestedParamsFromObject({
  from: accounts[0],
  to: 'RECEIVER...ALGO',
  amount: 100_000,                                 // 0.1 ALGO
  suggestedParams: await algod.getTransactionParams().do()
});

const signed = await wallet.signTransaction([[{ txn }]]);
await algod.sendRawTransaction(signed).do();

OpenFinance: statement endpoint

// REST — server-to-server statement export
POST /api/v1/defly/statement
Content-Type: application/json
Authorization: Bearer <ACCESS_TOKEN>

{
  "address": "ABCDEF...ALGO",
  "from_round": 38000000,
  "to_round":   39200000,
  "include":   ["pay", "axfer", "appl"],
  "format":    "json"
}

// 200 OK
{
  "address": "ABCDEF...ALGO",
  "page_token": "eyJyb3VuZCI6...",
  "transactions": [
    { "id":"TXID1","type":"pay","round":38120042,"amount":1500000,"fee":1000,"sender":"...","receiver":"..." },
    { "id":"TXID2","type":"axfer","round":38120111,"asset_id":31566704,"amount":42000000 }
  ]
}

Deflex swap-route webhook

// Webhook — best-execution fill notification
POST https://your-app.example/webhooks/deflex
X-OpenFinance-Signature: t=1714627200,v1=...

{
  "event":      "swap.filled",
  "wallet":     "defly",
  "address":    "ABCDEF...ALGO",
  "in_asset":   0,
  "out_asset":  31566704,
  "in_amount":  100000000,
  "out_amount": 24987532,
  "route": [
    {"dex":"tinyman_v2","pool":"ALGO/USDC"},
    {"dex":"pact","pool":"USDC/USDT"}
  ],
  "tx_group": "GROUP_ID",
  "timestamp": "2026-05-02T10:30:00Z"
}

Regulatory alignment

Defly is non-custodial, so private keys never leave the user's device — this is our default posture too. Off-chain user metadata we touch is processed under the EU GDPR framework, and any institutional flow that moves value above the de-minimis threshold is wrapped in a FATF Travel Rule envelope. For European clients we additionally check applicability of MiCA Title II reporting on crypto-asset service providers.

Security & audits

Defly's mobile app and API servers are audited by industry-leader Kudelski Security, and the project runs an Immunefi bug bounty. Our integration code inherits that posture: signing always goes through Defly Connect or WalletConnect v2, secrets stay in HSM-backed vaults, and every server-side action is logged with a consent ID. Rate-limit, replay-protection and idempotency keys are enabled by default on every endpoint.

About OpenFinance Lab

We are an independent studio focused on fintech, crypto and OpenData API integration. The team includes engineers from custodial banks, payment gateways, Algorand dApp shops and protocol-analysis firms, so we ship Defly-ready APIs without sacrificing security or compliance.

• Algorand mobile-wallet protocol analysis (Defly, Pera, Lute, Kibisis)
• OpenFinance and OpenBanking-style data gateways
• Custom Python / Node.js / Go SDKs and test harnesses
• Full pipeline: protocol analysis → build → validation → compliance review
• Source code delivery from $300 — runnable API source plus full documentation; pay after delivery upon satisfaction
• Pay-per-call API billing — access our hosted Defly OpenFinance endpoints and pay only for the calls you make, no upfront cost

Contact

To request a quote, share your target Algorand addresses or describe an OpenFinance integration around Defly Wallet, open our contact page:

Contact page

Engagement workflow

1. Scope confirmation — addresses, data types (transactions, balances, DeFi, swaps) and signing model.
2. Protocol analysis & API design (2–5 business days, complexity-dependent).
3. Build and internal validation against testnet and mainnet (3–8 business days).
4. Documentation, sample apps and automated test cases (1–2 business days).
5. First delivery typically lands in 5–15 business days; multi-sig and Deflex flows may extend the schedule.

FAQ

What do you need from me to start a Defly Wallet integration?

How long does delivery take?

How do you handle compliance and key custody?

Can you integrate Defly together with Pera, Exodus or Lute?