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By VANK Anchor: USDC-COP On/Off Ramp for the Stellar Ecosystem
VANK Anchor adds two Stellar-native services to the ecosystem:
Service 1: On-Ramp COP to USDC. Ecosystem wallets and fintechs connect their users to VANK's Colombia collection infrastructure. Users deposit COP via PSE. VANK confirms fiat receipt, converts COP to USDC, and sends USDC on Stellar to the partner's Stellar account. Stellar is used as the USDC settlement and delivery network. Impact: opens Colombia as a compliant fiat-to-USDC corridor for Stellar wallets and fintechs.
Service 2: Off-Ramp USDC to COP. Partners send USDC on Stellar to VANK's Stellar account. VANK captures beneficiary banking details through the hosted or API flow, screens the beneficiary against restricted party lists including OFAC, UN, PEPs, local Colombian lists, and adverse media, converts USDC to COP, and disburses COP through ACH/bank transfer rails in Colombia. Stellar is used as the USDC reception and auditability layer. Impact: enables Stellar ecosystem partners to convert USDC into Colombian pesos through VANK's existing fiat infrastructure.
Technical integration: VANK will deploy SDF's Anchor Platform as the core integration layer. The implementation will include SEP-1 for service discovery via stellar.toml, SEP-10 for partner wallet authentication, SEP-24 for hosted deposit and withdrawal, SEP-38 for transparent COP/USDC quotes, rates, spreads, fees, and quote expiration, and SEP-6 compatibility for partners requiring API-based deposit/withdrawal flows.
The Stellar SDK will be integrated into VANK's backend for Stellar account management, USDC trustlines, transaction building, signing, and submission. Horizon API will support on-chain monitoring and treasury reconciliation, including real-time capture of USDC movements and discrepancy alerts.
B2B model: Anchor clients are companies such as wallets and fintechs, not direct retail end users. Each partner completes corporate KYB with VANK. Partners are responsible for their own end-user KYC where applicable. VANK applies transaction-level compliance screening to every off-ramp beneficiary before COP disbursement.
$96.8K
VANK operates as a multicurrency B2B payments platform for international trade between the US and Latin America.
In 2025, based on company records and payment operations reports, VANK processed over $116 million in total payment volume across 40 active corporate clients, generating approximately $1.68 million in revenue. VANK has also processed over 50,000 transactions with approximately 70% recurring client activity.
To support these claims, VANK has added verifiable traction materials to this submission, including a redacted VANK transaction report, management attestation, and supporting financial/revenue documentation. Sensitive client, beneficiary, account, and transaction-level information has been redacted.
Operational fiat infrastructure:
Colombia: PSE active for collections, ACH/bank transfer rails active for disbursements, Kamin as payment processor, Coink as digital wallet, and Bre-B integration in certification phase.
United States: virtual accounts, pay-in and payout in USD through ACT, Portage, Zenus, and Cross River.
SWIFT capability for international payments. Erabor integration in progress.
Europe: virtual accounts and operations through ClearBank and Barclays.
Bolivia: pay-in and payout through local infrastructure partners.
VANK operates active KYC/KYB through InCode and transaction-level compliance screening through Compliance Risk. Every off-ramp beneficiary is screened against restricted party lists including OFAC, UN, PEPs, local Colombian lists, and adverse media before COP disbursement.
All fiat infrastructure required to operate as a Stellar Anchor in Colombia is already built and in production. SCF funding will be used only for the new Stellar-native integration layer: Anchor Platform, SEP support, Stellar SDK, Horizon-based reconciliation, production custody, monitoring, QA, documentation, and mainnet launch.
https://drive.google.com/drive/folders/1CoJuO8EXrlZQiuZpl4qNDAVMpkYCmvIt?usp=sharing
Tranche 1 Objective: Deploy the Stellar Anchor Platform with authentication and deliver a functional on-ramp flow (COP to USDC) on testnet.
Rate card applied across deliverables: Senior Backend Developer $45/hr, Backend Developer $35/hr, CTO architecture/security review $55/hr, QA Engineer $30/hr.
Deliverable 1.1: Deploy and configure Anchor Platform (SEP-24) for USDC-COP pair Senior Backend Developer: 80 hrs x $45 = $3,600 CTO review: 16 hrs x $55 = $880 Completion criteria: Anchor Platform running on AWS ECS, SEP-24 endpoints responding to deposit/withdrawal requests, configured for USDC on Stellar and COP fiat operations. Budget: $4,480
Deliverable 1.2: Publish stellar.toml (SEP-1) and configure Stellar accounts with USDC trustlines Senior Backend Developer: 40 hrs x $45 = $1,800 Backend Developer: 24 hrs x $35 = $840 Completion criteria: stellar.toml accessible on a VANK-controlled domain and validated against Stellar requirements, VANK discoverable as a COP Anchor by ecosystem wallets, Stellar testnet accounts created with active USDC trustlines, and test USDC transactions verified on Stellar Expert. Budget: $2,640
Deliverable 1.3: Implement SEP-10 Stellar Authentication Senior Backend Developer: 56 hrs x $45 = $2,520 CTO security review: 8 hrs x $55 = $440 Completion criteria: SEP-10 challenge-response authentication operational on testnet, authentication flow verified with wallet/client test sessions, and authentication tokens correctly scoping SEP-24 sessions. Budget: $2,960
Deliverable 1.4: Build business callback integration connecting Anchor Platform to VANK backend Senior Backend Developer: 48 hrs x $45 = $2,160 Backend Developer: 32 hrs x $35 = $1,120 Completion criteria: Anchor Platform sends deposit/withdrawal requests to VANK backend through business callbacks/webhooks; VANK backend receives, processes, and returns transaction status updates; request/response logs available for all transaction types. Budget: $3,280
Deliverable 1.5: On-ramp MVP flow on testnet (COP via PSE to USDC on Stellar) Senior Backend Developer: 48 hrs x $45 = $2,160 Backend Developer: 32 hrs x $35 = $1,120 CTO review: 12 hrs x $55 = $660 QA Engineer: 40 hrs x $30 = $1,200 Completion criteria: End-to-end demo of simulated COP deposit via PSE triggering USDC delivery to a partner Stellar testnet account, SEP-10 authentication verified in the flow, transaction verifiable on Stellar Expert, and full flow logged. Budget: $5,140
Deliverable 1.6: Integration testing and documentation Backend Developer: 16 hrs x $35 = $560 QA Engineer: 10 hrs x $30 = $300 Completion criteria: SEP-24 and SEP-10 endpoints tested against wallet/client test flows, test report delivered, and known issues documented. Budget: $860
Tranche 1 Budget: $19,360 (20%)
Tranche 2 Objective: Deliver a complete testnet environment with off-ramp, SEP-6 compatibility, SEP-38 quotes, treasury reconciliation, and validated technical QA.
Rate card applied across deliverables: Senior Backend Developer $45/hr, Backend Developer $35/hr, CTO architecture/security review $55/hr, QA Engineer $30/hr.
Deliverable 2.1: Implement off-ramp flow on testnet (USDC on Stellar to COP via ACH/bank transfer) Senior Backend Developer: 80 hrs x $45 = $3,600 Backend Developer: 48 hrs x $35 = $1,680 CTO review: 8 hrs x $55 = $440 QA Engineer: 20 hrs x $30 = $600 Completion criteria: End-to-end testnet demo of USDC received on VANK Stellar account, beneficiary screened against restricted party lists, COP conversion simulated, ACH/bank transfer disbursement simulated, and full flow logged with compliance screening evidence. Budget: $6,320
Deliverable 2.2: Deploy treasury reconciliation service via Horizon streaming API Senior Backend Developer: 64 hrs x $45 = $2,880 Backend Developer: 40 hrs x $35 = $1,400 CTO review: 8 hrs x $55 = $440 QA Engineer: 20 hrs x $30 = $600 Completion criteria: Service running and capturing every USDC movement on VANK Stellar accounts in real time, automatic reconciliation against PostgreSQL records, and discrepancy alerts tested with simulated mismatches. Budget: $5,320
Deliverable 2.3: Integrate liquidity partner for automated USDC-COP conversion Senior Backend Developer: 56 hrs x $45 = $2,520 Backend Developer: 40 hrs x $35 = $1,400 CTO review: 8 hrs x $55 = $440 Completion criteria: USDC-COP conversion flow integrated with liquidity partner or OTC provider, conversion logs include rates, spreads, amounts, quote references, and transaction references; reverse COP-to-USDC flow also automated. Budget: $4,360
Deliverable 2.4: Implement SEP-6 programmatic deposit and withdrawal compatibility Senior Backend Developer: 64 hrs x $45 = $2,880 Backend Developer: 32 hrs x $35 = $1,120 QA Engineer: 20 hrs x $30 = $600 Completion criteria: SEP-6-compatible deposit and withdrawal flows operational on testnet for partners requiring API-based integration; programmatic on-ramp/off-ramp flows validated; API documentation published. Budget: $4,600
Deliverable 2.5: Implement SEP-38 quote handling for transparent pricing Senior Backend Developer: 48 hrs x $45 = $2,160 Backend Developer: 24 hrs x $35 = $840 QA Engineer: 16 hrs x $30 = $480 Completion criteria: Partners can query COP/USDC rates before initiating transactions; quotes include rate, fee, spread, expiration time, and quote reference; quote-to-transaction binding verified on testnet. Budget: $3,480
Deliverable 2.6: Testnet integration testing and comprehensive QA Senior Backend Developer: 16 hrs x $45 = $720 Backend Developer: 48 hrs x $35 = $1,680 CTO review: 12 hrs x $55 = $660 QA Engineer: 63.33 hrs x $30 = $1,900 Completion criteria: One ecosystem partner or internal partner test account completes on-ramp and off-ramp transactions on testnet via SEP-10 plus SEP-24 or SEP-6. QA report covers SEP-6, SEP-24, SEP-38, edge cases, error handling, transaction status updates, and compliance screening. All critical bugs resolved. Budget: $4,960
Tranche 3 Objective: Launch VANK Anchor on Stellar mainnet with production-grade security, monitoring, custody, documentation, partner technical certification, first live transactions, and measurable mainnet volume targets.
Rate card applied across deliverables: Senior Backend Developer $45/hr, Backend Developer $35/hr, CTO architecture/security review $55/hr, QA Engineer $30/hr.
Deliverable 3.1: Migrate from testnet to mainnet Senior Backend Developer: 60 hrs x $45 = $2,700 Backend Developer: 40 hrs x $35 = $1,400 CTO review: 20 hrs x $55 = $1,100 QA Engineer: 10 hrs x $30 = $300 Completion criteria: VANK production Stellar accounts live on mainnet with active USDC trustlines, stellar.toml updated for mainnet endpoints, Anchor Platform connected to Stellar mainnet, and SEP-1, SEP-10, SEP-24, SEP-38, and SEP-6 compatibility validated on mainnet. Budget: $5,500
Deliverable 3.2: Implement production key management and custody Senior Backend Developer: 70 hrs x $45 = $3,150 Backend Developer: 40 hrs x $35 = $1,400 CTO security review: 40 hrs x $55 = $2,200 QA Engineer: 25 hrs x $30 = $750 Completion criteria: Private keys secured using AWS KMS/HSM or qualified custody provider. Production signing flow validated before mainnet launch. No Stellar secret keys stored in plaintext, source code, environment variables, or disk. Hot/cold wallet structure configured, dual approval documented for cold wallet operations, key rotation and access policies tested, and complete audit trail available through CloudTrail or equivalent custody logs. Budget: $7,500
Deliverable 3.3: Production hardening, retry logic, monitoring, alerting, and redundancy Senior Backend Developer: 80 hrs x $45 = $3,600 Backend Developer: 60 hrs x $35 = $2,100 CTO review: 20 hrs x $55 = $1,100 QA Engineer: 40 hrs x $30 = $1,200 Completion criteria: Monitoring dashboard live for uptime, transaction success rate, failed transactions, reconciliation status, security alerts, and discrepancy alerts. Retry logic with exponential backoff tested. Infrastructure redundancy, failover process, and incident response procedures documented and validated. Budget: $8,000
Deliverable 3.4: Partner technical certification and first live mainnet transactions Senior Backend Developer: 80 hrs x $45 = $3,600 Backend Developer: 70 hrs x $35 = $2,450 CTO review: 20 hrs x $55 = $1,100 QA Engineer: 45 hrs x $30 = $1,350 Completion criteria: At least one ecosystem wallet, fintech, or internal partner account completes production technical certification with VANK Anchor, including SEP-10 authentication testing, SEP-24 or SEP-6 flow validation, SEP-38 quote validation, callback handling, transaction monitoring, error handling, and first live USDC-COP mainnet transactions. Transaction hashes verifiable on Stellar Expert. This deliverable covers engineering integration, QA, technical support, production certification, and transaction validation only. It does not cover sales, business development, marketing, legal fees, user acquisition, prior work, or general operations. Budget: $8,500
Deliverable 3.5: Mainnet volume tracking, reporting, and launch metrics Senior Backend Developer: 32 hrs x $45 = $1,440 Backend Developer: 32 hrs x $35 = $1,120 CTO review: 12 hrs x $55 = $660 Completion criteria: Mainnet launch metrics dashboard and reporting process implemented. Within 30 days after launch, VANK Anchor processes at least 20 completed live mainnet USDC-COP transactions and at least $100,000 cumulative USDC-COP volume. Within 90 days after launch, VANK Anchor targets at least 75 completed live mainnet USDC-COP transactions and at least $500,000 cumulative USDC-COP volume from at least one live ecosystem partner or internal partner account. Budget: $3,220
Deliverable 3.6: Technical documentation, operational runbook, and professional user testing Senior Backend Developer: 50 hrs x $45 = $2,250 Backend Developer: 50 hrs x $35 = $1,750 CTO review: 20 hrs x $55 = $1,100 QA Engineer: 30 hrs x $30 = $900 Completion criteria: Complete technical documentation delivered, including architecture, deployment guide, SEP-1/6/10/24/38 configuration notes, API/callback documentation, operational runbook, incident response process, key rotation procedure, partner integration guide, and professional user testing report. Critical issues from testing resolved before tranche completion. Budget: $6,000
VANK is a 20-person company with an 8-person technical team, backed by deep cross-border trade and fintech experience.
Mardiros Daghinian, founder and CEO, has processed over $1B in international trade payments throughout his career. He built and operated 15 retail stores as Nike distributor in Venezuela, served as Pfizer distributor in Venezuela, and led VANKCOMEX, an international trade intermediation company. Nearly 20 years of firsthand experience in cross-border commerce across Latin America is the foundation of VANK's product vision.
Oscar Ramirez, CTO, has extensive experience building and leading engineering teams. Under his leadership, VANK's platform has processed over $250M in transactions, including PSE payment integrations, compliance infrastructure, and the full backend stack.
The 8-person tech team includes developers, QA, and product design. The broader 20-person organization covers operations, compliance, finance, business development, and client success.
Corporate structure: Vankcomex Holding LLC (Delaware, USA) and VANK S.A.S. (Colombia).
LinkedIn: Mardiros Daghinian: https://www.linkedin.com/in/mardirosdaghinian/
Oscar Ramirez: https://www.linkedin.com/in/oscar-ram%C3%ADrez-4526a6128/
mardiik
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