Your team knows what the next endpoint should do, but the roadmap has no room for it. Codersarts engineers build it inside your existing codebase, following your patterns for routing, validation, authentication, and tests, and deliver a reviewed pull request ready to merge. From $199.
Node.js · Express · NestJS · Django · FastAPI · Flask · Spring Boot · Laravel · Rails · .NET · Go
What Is an API Endpoint Development Task?
An API endpoint development task adds a new route to an existing backend so that apps, services, or partners can read or change data. A complete endpoint includes the route, input validation, business logic, database access, authentication and permission checks, error handling, tests, and documentation.
Codersarts builds endpoints as part of your codebase, not as a separate service. Every endpoint follows your existing structure and naming, is covered by tests, passes your CI, and is reviewed by a second engineer before delivery.
When This Is the Right Fit
Your frontend or mobile app needs data the API doesn't expose yet.
A customer or partner needs an integration endpoint, such as a webhook receiver or export API.
A small feature is defined but unscheduled, and the team is focused on bigger work.
You need an internal or admin endpoint for reporting, support tools, or bulk operations.
You want to add filtering, sorting, or pagination to an existing endpoint.
You need a webhook to send or receive events from Stripe, Slack, GitHub, or another service.
What We Build
Type | Examples |
CRUD endpoints | Create, read, update, delete for a new or existing resource |
Query endpoints | Search, filters, sorting, pagination, aggregation |
Webhook endpoints | Receive and verify events from Stripe, GitHub, Slack, Shopify, and other services |
Integration endpoints | Call a third-party API and return combined or transformed data |
Export and import endpoints | CSV, JSON, or PDF export; bulk uploads with validation |
Admin and internal endpoints | Reporting, support tools, bulk updates, feature flags |
GraphQL resolvers | New queries and mutations in an existing GraphQL schema |
Small features | A focused feature that spans an endpoint and a small UI change |
Every Endpoint Includes
Route and handler following your existing structure
Input validation with clear error messages
Authentication and permission checks using your existing auth system
Database changes and migrations, if needed
Error handling with consistent status codes
Tests for success cases, validation errors, and permission failures
API documentation updates (OpenAPI/Swagger, README, or your existing docs)
A change summary explaining what was added and how to use it
How It Works
Describe the endpoint. Share the issue or a short description: what it should do, who calls it, and what data goes in and out. Give access to the repository or a fork.
We confirm the spec. An engineer reviews your codebase, confirms the request and response format, and fixes the price before work starts.
We build it your way. The endpoint follows your existing routing, validation, auth, and database patterns.
We verify. Tests are added, CI passes, and a second engineer reviews the code.
You get a pull request. It includes the code, tests, documentation updates, and example requests.
Pricing
Tier | Price | Typical scope | Turnaround |
Standard Endpoint | From $199 | One endpoint or small feature using existing models: CRUD, filters, pagination, simple webhooks | 2–3 days |
Complex Endpoint | From $599 | New data models and migrations, multiple related endpoints, third-party API integration, file handling | 3–5 days |
Larger features are scoped and quoted separately. You always get a fixed price before work starts.
Need endpoints regularly? The PR Subscription gives you a monthly allowance of verified pull requests, from $499/month.
The Verified Standard
Built to your conventions, so it looks like your team wrote it
Tests cover success, validation, and permission cases
CI passes on your existing pipeline
A second engineer reviews the code
Documentation updated so other developers can use it right away
If the endpoint doesn't match the agreed spec, we fix it free.
Codersarts vs. Other Options
Codersarts Endpoint Task | Your own developers | Freelancer | AI coding agent alone | |
Fixed price | Yes | — | Sometimes | — |
Follows your conventions | Yes | Yes | Varies | Often not |
Auth and permission checks | Always included | Usually | Sometimes missed | Often missed |
Tests included | Always | Depends on team | Rarely | Sometimes |
Human review | Every PR | Yes | Rarely | No |
Roadmap impact | None | Pulls developers off planned work | None | None |
Related Tasks
GitHub Issue Bug Fix: When an existing endpoint isn't working correctly
Add Unit Tests: When existing endpoints have little or no test coverage
Generate README and Docs: When your API needs clear documentation
Refactor Legacy Code: When the code around a new endpoint needs cleaning up first
Security and Access
Least-privilege access to the repository or a fork
We never need production data or credentials; we use test data and local environments
NDA on request before any code is shared
No code reuse or model training on your code
Access removed when the task is complete
Languages and Frameworks
Node.js (Express, NestJS, Fastify), Python (Django, Django REST Framework, FastAPI, Flask), Java and Kotlin (Spring Boot), PHP (Laravel, Symfony), Ruby on Rails, C# (.NET, ASP.NET Core), and Go (Gin, Echo, Fiber). REST and GraphQL APIs. Databases including PostgreSQL, MySQL, MongoDB, and Redis.
Frequently Asked Questions
How much does it cost to add an API endpoint?
Codersarts builds a standard API endpoint from $199 and a complex endpoint with new data models or third-party integration from $599. You get a fixed quote before work starts.
How long does it take to build a new API endpoint?
Standard endpoints are delivered in 2–3 days. Complex endpoints take 3–5 days.
Will the endpoint match our existing code?
Yes. Engineers review your codebase first and follow your existing routing, validation, authentication, database, and testing patterns.
Do you include tests and documentation?
Yes. Every endpoint includes tests for success, validation, and permission cases, plus updates to your API documentation.
Can you build webhook endpoints?
Yes. We build endpoints that receive and verify webhooks from services such as Stripe, GitHub, Slack, and Shopify, and endpoints that send webhooks to other systems.
Do you work with GraphQL?
Yes. We add queries, mutations, and resolvers to existing GraphQL schemas.
Do you need access to our production database?
No. We work with test data and local or staging environments. Production credentials are never needed.
What if we're not sure exactly what the endpoint should do?
Describe the goal, and an engineer will propose a request and response format for you to approve before any work starts.
Do you use AI coding agents?
Yes. Agents handle routine parts of the work to speed up delivery. Every change is reviewed, corrected where needed, and tested by Codersarts engineers.
Get the Endpoint Built Without Touching Your Roadmap.
Describe what you need. We'll confirm the spec, build it your way, and deliver a tested pull request.