Cwallet API integration services (Web3 / OpenFinance / Telegram Bot)

Structured, multi-source activity

Unlike a pure on-chain scanner, Cwallet aggregates custodial balances, non-custodial signatures via WalletConnect, Telegram Bot tips, swap routing, and Cozy Card spending in a single account. That means one OpenData connector can yield portfolio, treasury and social-payment insight in one pass — something that would otherwise require stitching together five or six separate integrations.

Real business workflows, not just price feeds

Communities running airdrops, DAOs issuing paid subscriptions, and merchants accepting CCPayment all generate settlement data that accountants and compliance teams need. We translate these flows into statement-grade records with categorization (tip, airdrop, swap, refund, payroll) so they fit directly into ERP, CRM or analytics pipelines.

Live since 2019 with continuous feature growth

Over the last two years Cwallet rolled out the Cozy Card virtual card (Apple Pay / Google Pay / PayPal-compatible), expanded the Telegram Mini App with subscription and loyalty tooling, added principal-protected yield products, and shipped the CCPayment merchant API family — each of which surfaces new data that is worth wiring into your product.

Account & session management

Passkey-based login mirroring, 2FA session binding and OAuth-style token refresh. We expose /auth/login, /auth/refresh and /auth/passkey/verify endpoints so downstream systems can hold short-lived read tokens per user, with full audit logging.

Concrete use: a custodial reporting dashboard that needs to read balances for 10,000 Cwallet users at 5-minute intervals without sharing master credentials.

Multi-chain balance & NFT API

Unified balance reads across 60+ chains, normalized to {chain, token, contract, balance, decimals, usd_value}. NFT holdings are returned with metadata and media URLs, ready for portfolio or treasury UIs.

Concrete use: a family-office dashboard consolidating SOL, ETH, TRX and BTC holdings with hourly snapshots for net-worth reporting.

Transaction history & swap records

Paginated /transactions endpoint with filters for chain, token, direction, counterparty and kind (transfer / swap / tip / airdrop / card-spend). Each record carries the originating on-chain hash plus Cwallet-side metadata.

Concrete use: monthly bookkeeping export that reconciles Cwallet swaps against an exchange's fiat ledger.

Telegram Bot & Mini App events

Normalized events for /tip, /airdrop, /giveaway, /draw, /rain, /swap, subscription renewals and DAO role verifications, pushed to your webhook with HmacSHA256 signatures and a track_id correlation field.

Concrete use: a Web3 community CRM that scores members on tip volume, subscription status and verified holdings.

Cozy Card & bulk payments

Virtual card issuance, top-up and spend feed APIs; bulk payroll payout endpoints with per-row status and failure reasons. Works with Apple Pay and Google Pay tokenized transactions.

Concrete use: a remote-team payroll tool that pays 500 contractors in USDT and reconciles card spend for expense reports.

CCPayment merchant webhooks

Implementation of deposit, direct-address, invoice, withdraw and refund webhooks, including the required Appid, Timestamp and Sign headers, with retry-safe idempotency and success acknowledgement per Cwallet's CCPayment spec.

Concrete use: an e-commerce checkout that accepts USDT on TRON and books the revenue into a SaaS billing platform.

1. Crypto bookkeeping for a Web3 studio

Business context: a 30-person studio receives USDT on TRON via CCPayment, pays contractors in SOL and holds an ETH treasury on Cwallet.

Data / APIs involved: /transactions, /ccpayment/webhook/deposit, /bulk-payments/status, /balances/snapshot.

OpenData mapping: each record is emitted as an ISO 20022-inspired payload with {instrument, direction, counterparty, amount, fx_rate, category}, feeding straight into the studio's accounting SaaS.

2. Telegram community engagement CRM

Business context: a Web3 project runs a 120,000-member Telegram group with tips, airdrops and paid subscriptions via the Cwallet Bot.

Data / APIs involved: Bot webhooks for /tip, /airdrop, /giveaway, subscription lifecycle events, and member verification responses.

OpenData mapping: events flow into a customer-data-platform style schema (actor, action, object, value) so marketing can score active members and trigger drip campaigns.

3. Merchant checkout & refund flow

Business context: a digital-goods store accepts BTC, ETH and USDT through a Cwallet/CCPayment hosted checkout.

Data / APIs involved: Get Checkout URL, Create Payment Order, deposit webhook with pay_status = success, refund webhook.

OpenData mapping: each order lifecycle event is translated into a unified PaymentIntent object compatible with existing Stripe-style pipelines, with idempotency keys and SHA-256 signature verification.

4. Treasury & risk dashboard

Business context: a DAO treasurer monitors multi-chain exposure and yield positions across Cwallet Earn products.

Data / APIs involved: /balances/snapshot, /earn/positions, swap and cross-chain bridge records, plus price feeds from the same backend.

OpenData mapping: hourly snapshots are pushed to a time-series store; thresholds on concentration, stablecoin ratio and APY drift trigger Slack or email alerts.

5. Compliance & travel-rule reporting

Business context: a regulated OTC desk using Cwallet needs to evidence origin and destination of transfers above a threshold.

Data / APIs involved: enriched transaction records, counterparty metadata, WalletConnect signing logs and KYC status flags.

OpenData mapping: payloads follow a FATF Travel Rule-style schema (originator / beneficiary VASP fields) and are pushed to the desk's sanctions-screening provider before confirmation.

Deliverables checklist

• API specification in OpenAPI 3.1 / Swagger with example payloads
• Protocol analysis report (login, session, signing and webhook signature chains)
• Runnable source for login, balance, transaction and webhook endpoints (Python / Node.js / Go)
• Automated tests, fixtures and Postman collections
• Compliance guidance (KYC, Travel Rule, data retention)
• Deployment guide for Docker / Kubernetes / serverless

Technical implementation — balance read

// Fetch multi-chain balances for a Cwallet account
POST /api/v1/cwallet/balances
Content-Type: application/json
Authorization: Bearer <ACCESS_TOKEN>

{
  "account_id": "uid_9f23c1",
  "chains": ["BTC","ETH","TRX","SOL","XRP"],
  "include_nft": false,
  "quote_currency": "USD"
}

// Response
{
  "snapshot_at": "2025-04-18T09:22:14Z",
  "total_usd": 18423.51,
  "items": [
    {"chain":"ETH","token":"ETH","balance":"1.2481","usd_value":4221.33},
    {"chain":"TRX","token":"USDT","balance":"10500.00","usd_value":10500.00},
    {"chain":"SOL","token":"SOL","balance":"24.90","usd_value":3702.18}
  ]
}

Technical implementation — statement export

// Export paginated transaction statement
POST /api/v1/cwallet/statement
Content-Type: application/json
Authorization: Bearer <ACCESS_TOKEN>

{
  "account_id": "uid_9f23c1",
  "from": "2025-03-01",
  "to":   "2025-03-31",
  "kinds": ["transfer","swap","tip","card_spend"],
  "format": "json",
  "page": 1,
  "page_size": 200
}

// Errors: 401 invalid_token, 403 scope_denied,
//         429 rate_limited (retry with backoff),
//         422 date_range_too_large

Technical implementation — CCPayment webhook verification

// Verify a CCPayment deposit webhook (Node.js)
import crypto from "crypto";

export function verifyCCPayment(req, appSecret) {
  const { appid, timestamp, sign } = req.headers;
  const body = JSON.stringify(req.body);
  const payload = `${appid}${timestamp}${body}`;
  const expected = crypto.createHmac("sha256", appSecret)
                         .update(payload)
                         .digest("hex");
  const fresh = Math.abs(Date.now()/1000 - Number(timestamp)) < 120;
  return fresh && sign === expected;
}

// Respond with HTTP 200 and body "success"
// Retry policy: CCPayment retries 6–7 times on non-200

Compliance & privacy

We design every Cwallet integration to respect the regulatory perimeter of the client's jurisdiction. For EU-facing deployments that means aligning with MiCA (Markets in Crypto-Assets) record-keeping rules and GDPR data-subject rights; for global deployments it means following the FATF Travel Rule for transfers above 1,000 USD/EUR, and for US counterparties a FinCEN-style OFAC screening gate before funds move.

All integrations ship with explicit consent capture, purpose-of-use logging, configurable data retention windows, and field-level PII minimisation. We never persist private keys, seed phrases or passkeys — only short-lived session tokens scoped to the minimum set of read operations required.

Data flow / architecture

A typical pipeline:

• Client App (Cwallet) — user authorises read access via Passkey + 2FA session binding.
• Ingestion API — our connector polls balance & transaction endpoints and subscribes to Bot / CCPayment webhooks.
• Normalisation & storage — raw payloads are translated to a canonical OpenData schema (PostgreSQL + object storage for raw JSON).
• Downstream API / analytics — your product consumes REST, GraphQL or streaming (Kafka / SSE) feeds for dashboards, accounting, BI and alerting.

Trust Wallet

Self-custody mobile wallet with wide chain coverage and a built-in dApp browser. Holds seed-based multi-chain balances and WalletConnect session history; users who also work with Trust Wallet often need unified transaction exports across Cwallet and Trust Wallet.

MetaMask

The most widely deployed EVM wallet, storing account metadata, per-network balances and signed-transaction history. Common integration asks include mirroring MetaMask read flows for accounting parity with Cwallet EVM activity.

Phantom

Solana-first wallet that has expanded to Bitcoin, Ethereum and Polygon. Holds SPL token balances, NFT collections and swap history — a frequent counterpart for Cwallet Solana users.

Rabby Wallet

Multi-chain EVM wallet with automatic network detection and transaction simulation. Valuable as a source of signed-message logs and risk-screening context alongside Cwallet read APIs.

Coinbase Wallet

Self-custodial wallet from Coinbase covering EVM chains, Solana and Bitcoin. Holds address-book, NFT and dApp session data; often paired with Cwallet for users who split custodial and non-custodial balances.

Ledger Live

Companion app for Ledger hardware wallets with multi-chain portfolio, staking and swap records. Integrators typically consolidate cold-storage snapshots from Ledger with hot-wallet activity in Cwallet.

Exodus Wallet

Desktop and mobile wallet supporting 100+ assets with built-in swap and staking. Exports CSV transaction history; a common source to merge with Cwallet statements for tax filing.

Zelcore

Self-custody multi-chain wallet supporting 100,000+ tokens across 80+ chains with decentralised 2FA. Complements Cwallet in long-tail-asset portfolios where unified valuation is needed.

CTRL Wallet

Open-source, non-custodial wallet natively integrated into Telegram with DeFi swap and stake flows. Sits close to Cwallet's Telegram Bot use cases, making cross-wallet community data a common integration request.

Walletium

Telegram-embedded multi-chain wallet with virtual cards and staking. Overlaps with Cwallet's Cozy Card and Bot-based flows and often appears in the same project's wallet short-list.

About our studio

We are an independent technical studio focused on App interface integration, authorized API integration and OpenData / OpenFinance / OpenBanking protocol analysis. Team members come from fintech, cross-border payments, Web3 custody, mobile security and cloud infrastructure, with years of hands-on experience in reverse engineering app protocols under proper authorization.

• Financial, banking and crypto apps — transactions, statements, payment rails
• E-commerce, delivery and retail apps — orders, settlement, inventory
• Travel, mobility and hospitality apps — bookings, itineraries, loyalty
• Social, OTT and dating apps — auth, messaging, profile data
• Custom Python / Node.js / Go SDKs and test harnesses
• Full pipeline: protocol analysis → build → validation → compliance
• Source code delivery from $300 — you receive runnable API source code and full documentation; pay after delivery upon satisfaction
• Pay-per-call API billing — access our hosted Cwallet-compatible endpoints and pay only per call, with no upfront cost

Contact

To request a quote, share sandbox credentials, or submit a statement-of-work for a Cwallet integration, open our contact page. We respond in English, typically within one business day, and will confirm scope, compliance constraints and delivery timelines before any engagement starts.

Open contact page

Prefer pay-per-call? Tell us your expected volume and we will size an endpoint plan for Cwallet balance, transaction and webhook traffic.

Engagement workflow

1. Scope confirmation — target endpoints (balance, statement, Bot events, CCPayment) and compliance posture.
2. Protocol analysis & API design — 2–5 business days depending on surface area.
3. Build & internal validation — 3–8 business days, including signed webhook replay tests.
4. Documentation, Postman collection and sample integrations — 1–2 business days.
5. Handover & support — typical first delivery in 5–15 business days; third-party approvals may extend timelines.

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