Make your systems exchange useful information.
API integration connects the systems your business already uses. 0OP builds the mapping, validation, and recovery steps that turn separate applications into a dependable working process.
Explore the scope ↓0op.dev/apiWhere the work gets stuck
Two products may both have an API and still disagree about what a customer, status, or completed order means. A simple transfer can create duplicates or overwrite a more recent update. The integration needs rules for identity, ownership, timing, and errors. For example, a lead capture system might create a CRM record while the CRM remains responsible for its sales status.
A concrete example
Example scope: send qualified website enquiries into an existing CRM. The integration handles record identity and delivery instead of relying on a copied email.
Input
A validated enquiry payload, the CRM field definitions, and the agreed rules for existing versus new customers.
Output
A CRM enquiry with its source reference, plus a delivery record that can explain missing or repeated submissions.
- Validate incoming fields and authenticate the source using the supported mechanism.
- Map the enquiry to CRM fields and apply the agreed record matching rules.
- Confirm the resulting record and retain a recoverable failure if the destination is unavailable.
When it fits
Useful when supported interfaces exist and both systems have clear ownership. Two-way updates require an additional conflict policy.
What you could receive
- Documented payload and field contract
- Authenticated integration and retry handling
- Record tracing and reconciliation checks
What we need to start
- API documentation and authorized access
- Sample payloads and destination fields
- Identity, duplicate, and conflict rules
Capture a starting scope with the workflow templates. For the design choice, read agents vs automation.
Workflows built around API
System-to-system connections
Read and update agreed records through supported interfaces. Map fields deliberately, preserve source identifiers, and validate required information before writing to the destination.
Webhook receivers
Receive events, verify their origin where supported, and process them with duplicate protection. Keep the incoming event separate from the work it triggers so failures can be investigated.
Synchronization and reconciliation
Define which changes flow in each direction and how conflicts are handled. Add a reconciliation check where missing an event would leave the systems inconsistent.
How the project comes together
Inspect the actual interfaces
Review available endpoints, account access, rate limits, and example payloads. Confirm that the requested operation is supported before designing around it.
Agree on the data contract
Document field mappings, record identity, update rules, and error behavior. Decide which system owns each value and what happens when a value is missing.
Test failure as well as success
Check duplicate delivery, expired access, partial updates, and service interruptions. Release with enough logging to trace one record through the connection.
Keep the boundaries explicit
Integration scope depends on the access and interfaces each provider offers. Secrets stay outside browser code. Provider charges, access restrictions, and changes to external APIs need an operating plan; a connection is not permanently maintenance-free.
Questions about API
Is a webhook the same as an API?
A webhook sends an event to another system when something happens. An API also lets a client request information or perform supported actions. A workflow may use both.
Can data move in both directions?
Yes, when both systems support the required operations. Two-way synchronization also needs explicit conflict rules to avoid update loops and accidental overwrites.
What if a tool has no suitable API?
We examine supported exports, imports, or other approved interfaces. If the available route is fragile or cannot meet the requirements, that limitation should be clear before development.
What should stop being manual?
Bring a recurring task, an example input, and the outcome you need. We can use that to define a practical first scope.
Discuss it with Oğuz ↗0OP · Zero Operation Development
by oguzerol.com