Custom Blockchain Development.
Build a shared record, digital asset workflow, or network that fits your business.
For teams coordinating records across organizations, launching a Web3 product, or extending an existing chain, Code Partner helps define the architecture, build the software, and prepare for operation. Start by deciding whether blockchain is the right tool.
What are you trying to change?
Begin with the participants, the record they need to share, and the decisions the system must support.
Supply chain records
Different organizations need a traceable history of custody or events. Scope how events enter the system, who can attest to them, and how corrections are recorded.
Review validation
A product needs a record of review eligibility or verification. Define how a real transaction is checked and what evidence belongs in the shared record.
Carbon credit workflows
A registry needs traceable issuance and retirement events. Map the registry rules and external evidence first; software alone does not certify a credit.
Web3 products
Users need to connect wallets and interact with contracts through a usable application. Plan transaction states, signing prompts, and recovery from failed actions.
Shared governance
Participants need defined proposal, voting, and execution rules. Translate decision rights into permissions and review how those rules can change.
Existing chain limitations
A network or application needs new behavior or integration. Assess the current protocol, operating constraints, and migration path before considering a custom chain.
Use blockchain where shared verification matters.
Discovery should compare blockchain with simpler alternatives before committing to a build.
Consider blockchain when…
Several participants need to verify the same transaction history or asset state, and the rules for recording or transferring it should be explicit. Define who operates the network and who can submit or validate records.
An ordinary database may be enough
One organization controls the data and users can rely on its access controls, audit logs, and APIs. A conventional application may satisfy the requirement with less operational complexity.
Resolve the tradeoffs first
Discuss privacy, correction requirements, transaction costs, throughput, governance, and key recovery. Blockchain records do not establish that an external event or submitted input is truthful.
Choose the components your project needs.
The service catalog covers the following areas. A project can combine them, but each component needs an agreed scope.
Custom networks and chain forks
A custom base network (L1), a network built on another chain (L2), or a chain fork, including initial network configuration and consensus rules that determine how nodes agree on records. Define node roles, validation rules, deployment environments, and upgrade responsibilities.
Smart contracts and governance
Contract design, implementation, and testing for asset and workflow rules. Shared governance (DAO) work can include proposals, voting permissions, and execution logic. Independent audit coordination is scoped separately.
Wallets
Custodial or non-custodial wallet software for web, mobile, or extensions. Agree on who controls signing keys, how permissions work, and what recovery and support responsibilities apply.
Web3 applications
Frontend and backend development with wallet connectivity. Provide clear transaction feedback and connect the contract workflow to the rest of the product.
Business integrations
Connect chain events and application APIs to the systems participants already use. Define input validation, retries, reconciliation, and the boundary between public records and private data.
Exchange platforms
Centralized exchange platform engineering can include matching engines and identity-verification (KYC) integration hooks. Licensing, compliance advice, liquidity, and market-making are separate responsibilities.
Review the decisions before each next step.
Milestones and validation methods are agreed for the engagement rather than assumed from a standard timeline.
01 / Discovery
Map the business workflow, participants, data, permissions, existing systems, and constraints. Compare a conventional system, an existing network, and a custom network.
02 / Architecture
Define the on-chain and off-chain boundaries, contract rules, key model, interfaces, network topology, and acceptance criteria. Review the cost and operating implications.
03 / Prototype
Validate the highest-risk workflow in a scoped prototype or test environment. Use representative scenarios to decide what needs refinement before implementation.
04 / Implementation
Build the agreed contracts, network configuration, wallet or application components, and integrations. Review changes against the approved scope.
05 / Testing and review
Test rules, permissions, failures, and expected load. Define any independent audit requirement, coordinate the review, and agree on how findings will be addressed.
06 / Launch and handover
Prepare deployment procedures, configuration, monitoring, and recovery steps. Agree on sign-off, ownership transfer, and support coverage before launch.
A scoped system and a usable handover.
Include the relevant artifacts in the agreement so your team knows what it will receive and how to operate it.
Architecture and specification
Workflow and permission definitions, system boundaries, interface specifications, and an implementation plan for the agreed components.
Source and build artifacts
Source repositories, contract code, application or wallet components, and network configuration as applicable. Agree on dependencies and licensing requirements.
Tests and validation records
Automated tests and agreed test scenarios, with instructions for running them. Document known limitations and any separately commissioned review findings.
Deployment and operations guides
Environment requirements, deployment steps, monitoring setup, and operational runbooks suited to the scoped system.
Integration documentation
API and event definitions, configuration guidance, and reconciliation or retry procedures for the agreed connections.
Ownership and handover
A repository and access handover plan, documentation walkthrough, and agreed support responsibilities. Ownership and third-party rights are stated in the contract.
Define who can act, sign, and recover.
Treat keys, permissions, and failure handling as product requirements rather than leaving them until deployment.
Keys and signing
Decide who controls keys and authorizes transactions. Scope storage, signing access, backup or recovery, and administrative controls. Never place private keys or seed phrases in an enquiry form.
Permissions and private data
Define participant roles, privileged operations, and upgrade authority. Decide what must stay off-chain and review what each participant can read or submit.
Testing and independent audit
Validate contract behavior and operational failure paths. A separately agreed independent audit can review the defined scope; it is not a certification or a guarantee of a vulnerability-free system.
External systems and inputs
Specify how off-chain events are verified, how API failures are handled, and how records are reconciled. The quality of external inputs remains part of the system design.
Make the workflow concrete.
Use this illustration to identify the rules, data sources, and responsibilities your own workflow would need.
- 01
Capture an event
A participant records a shipment handoff in an application.
- 02
Check authority
Validate the role, required evidence, and transaction request.
- 03
Record the state
Apply the agreed contract rule and record the event reference.
- 04
Reconcile systems
Update the connected system and expose the permitted history.
This is an example architecture, not a client result. Private documents can remain in an access-controlled system; the exact record and verification approach are design decisions.
Estimate the decisions and dependencies.
The catalog lists an indicative starting price of $25,000 USD and a 12-week planning reference for this service. These are not a quote or a promised launch date.
What changes the scope
A new network, custom consensus behavior, contract complexity, wallet custody, migration, application surfaces, and integrations all affect the build.
What changes the schedule
Access to repositories and APIs, participant decisions, review availability, test environments, audit scope, and findings can affect delivery milestones.
What to prepare
Bring a workflow outline, participant roles, current network or systems, data requirements, expected usage, budget range, and any security or regulatory constraints.
Agree on separate responsibilities
Legal, licensing, and regulatory advice; token listings, liquidity, and market-making; and post-launch tokenomics redesign are excluded from the catalog scope. Define independent audit, hosting, third-party services, and operational fees explicitly in the estimate.
Keep ownership and operations clear.
Launch is a handover milestone. Agree on what your team operates and what ongoing help is included.
Your team’s access
Define repository ownership, environment access, administrative roles, and key control. Keep an inventory of external dependencies and accounts.
Warranty and support
The catalog references up to six months of warranty. Confirm the actual terms, covered defects, exclusions, support channels, and response expectations in the engagement agreement.
Changes and ongoing operations
Scope monitoring, node operations, incident response, upgrades, and new features separately where needed. A network needs an agreed plan for maintenance and governance.
Before choosing a build.
Discuss the choices that affect your users, operating model, and project responsibilities.
Do we need our own chain?
Not necessarily. Discovery compares an existing network, a custom network, and a conventional application against your workflow, participants, and operating constraints.
Can you extend an existing blockchain product?
The catalog includes chain forks, contract engineering, wallet connectivity, and application integrations. Review the current code, dependencies, rights, and migration constraints before defining the work.
Do users need to manage a wallet?
That depends on the signing and custody model. Define who authorizes transactions, what the user sees, and how recovery works before choosing the wallet experience.
Can confidential records be stored on-chain?
First define who may see each record and whether it needs correction or deletion. Keep sensitive material outside public records where appropriate and review the design against your privacy requirements.
Is an independent audit included?
Audit coordination is available in the service scope. The independent reviewer, scope, fees, timing, and process for addressing findings need separate agreement.
Does blockchain verify a real-world event?
A recorded transaction alone does not prove a shipment, review, or credit is valid. Define trusted sources, evidence checks, and responsibility for external inputs.
Can you build an exchange or token project?
Exchange engineering and digital asset workflows are in the catalog. Legal advice, licensing, token listings, liquidity provision, and market-making are excluded and require separate arrangements.
How do we start without committing to a full build?
Describe the problem and current stage. A scoped discovery or prototype can help validate the approach; deliverables and pricing for that first step must be agreed.
Tell us about the workflow.
You do not need a finalized technical specification to begin. A clear problem and participant model are a useful starting point.
Demo form: entries are not sent or stored. Use this to organize your requirements, then contact Code Partner through the contact page. Do not enter keys, seed phrases, confidential records, or credentials.