M
API Matrix

Freelancer API

Business / OAuth Advanced HTTPS
Varies by plan (check documentation)
63 Score
Grade C
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Overview

The Freelancer API lets you post projects, search freelancers, and manage bids and contracts programmatically. It uses OAuth 2.0 and targets marketplace platform integrations.

💡

Beginner Tip

OAuth setup requires registering an app on the Freelancer Developer Portal and completing a multi-step token flow — plan at least a day to get authentication working before touching project endpoints.

Available Data

Freelancer data via REST API
JSON-formatted response data
Requires OAuth authentication

Example Response

JSON Response 
{
  "status": "success",
  "data": {
    "result": "Data from Freelancer",
    "description": "Hire freelancers to get work done",
    "timestamp": "2025-01-15T10:00:00Z"
  }
}

Field Reference

result.projects List of project objects returned by the query.
result.projects[].id Unique numeric ID for the project.
result.projects[].title Human-readable title of the freelance project.
result.projects[].budget.minimum Minimum budget the client has set for the project in USD.
result.projects[].bid_stats.bid_count Number of bids submitted on this project so far.
result.status Top-level response status: "success" or an error descriptor.

Implementation Example 

const url = "https://developers.freelancer.com/";
// Replace headers or query params with the values required by this API.
const response = await fetch(url, {
  headers: {
  "Authorization": "Bearer YOUR_API_KEY"
  }
});
if (!response.ok) throw new Error(`Request failed: ${response.status}`);
const data = await response.json();
console.log(data);

What Can You Build?

Note: These code examples are AI-generated and unverified. Always refer to the official API documentation for accurate usage.

Common Errors & Troubleshooting

401 Unauthorized Access token is missing, expired, or lacks required OAuth scopes
✓ Re-authenticate to get a fresh token and ensure you requested the correct scopes (e.g. "basic", "jobs:read") when prompting the user.
403 Forbidden Your app does not have permission to perform this action on behalf of the user
✓ Check that the user account used for testing has completed identity verification, and that you requested the correct OAuth scopes.
400 Bad Request with error_code field A required request parameter is missing or malformed
✓ Read the error_code field in the response — Freelancer returns specific codes (e.g. "RequestDataError") with messages that pinpoint the bad field.

Matrix Score Breakdown

🌐 Reachability 30/30
⚡ Speed 5/20
🔒 Security 15/15
🛠 Developer XP 3/20
✓ Reliability 10/15

Partially tested on Apr 5, 2026

Technical Specifications

Auth OAuth
HTTPS REQUIRED
CORS UNKNOWN
Category Business
Difficulty Advanced
Verified: 2026-04-04

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