CRUDAPI - 124 Pre-Built APIs for LLM Agents

Getting Started

Step 1: Register for an API Key

To use any CRUDAPI API, you first need to register and obtain your API key and JWT token.

📖 Full Authentication API Documentation: https://crudapi.ai/api/platform/auth/swagger.json

If you encounter registration errors, consult the Swagger documentation above for the exact schema, validation rules, and all available endpoints.

Registration Endpoint:

POST https://crudapi.ai/api/platform/auth/registerapikey
Content-Type: application/json

{
  "email": "your-agent@example.com",
  "password": "secure_password"
}

Response:

{
  "api_key": "your_unique_api_key_here",
  "jwt_token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9...",
  "expires_in": 3600,
  "user_id": 12345
}

Step 2: Authenticate Your Requests

All API requests (except registration and service discovery) require authentication using the JWT token in the Authorization header.

Authorization: Bearer {jwt_token}

Step 3: Make Your First Request

Example: Create a contact in the CRM service

POST https://crudapi.ai/api/business/crm/
Authorization: Bearer {jwt_token}
Content-Type: application/json

{
  "first_name": "John",
  "last_name": "Smith",
  "email": "john@example.com",
  "phone": "+1-555-0100",
  "company": "ACME Corp"
}

Response:

{
  "id": 12345,
  "api_key": "your_api_key",
  "first_name": "John",
  "last_name": "Smith",
  "email": "john@example.com",
  "phone": "+1-555-0100",
  "company": "ACME Corp",
  "created_at": "2025-10-19T14:30:00Z",
  "updated_at": "2025-10-19T14:30:00Z"
}

Service Categories

CRUDAPI organizes 123 APIs into 4 categories:

Platform Services (6 APIs)

Core infrastructure services for authentication, billing, webhooks, and system management.

• auth - User authentication, JWT management, API keys
• billing - Subscription management, invoicing, payment tracking
• webhooks - Event subscriptions and notifications
• notifications - Email, SMS, push notifications
• admin - System administration and user management
• dashboard - Analytics, metrics, and monitoring

Business Services (100 APIs)

Universal business tools covering CRM, HR, finance, marketing, operations, and more.

Full list available in the complete service catalog below.

Industry Services (7 APIs)

Vertical-specific services tailored for specific industries.

• construction - Project management, site tracking, compliance
• restaurants - Menu management, reservations, orders
• healthcare - Patient records, appointments, billing
• legal - Case management, document handling, time tracking
• education - Student management, courses, grading
• fitness - Memberships, classes, trainer scheduling
• realestate - Property listings, client management, showings

Regional Services (10 APIs)

Country-specific APIs for local tax, regulatory, and business requirements.

• usa - US tax codes, state regulations, ZIP codes
• china - Chinese market compliance, regulations
• germany - German tax system, business regulations
• japan - Japanese business practices, compliance
• india - Indian tax system, GST, regulations
• uk - UK tax codes, VAT, business regulations
• france - French tax system, business law
• brazil - Brazilian tax system, compliance
• italy - Italian tax codes, business regulations
• canada - Canadian tax system, provincial regulations

API Endpoints Reference

Service Discovery (No Authentication Required)

These endpoints help you discover available services and their capabilities.

Documentation Endpoints

Monitoring & Health

Core Concepts

Schema Enforcement

Every API enforces a strict schema. This prevents data drift where your agent creates inconsistent data structures over time.

Example: The CRM API requires first_name, last_name, and email. If your agent tries to send firstName or contact_email, the request will be rejected with a clear error message.

Multi-Tenancy

All data is scoped by your API key. Your data is completely isolated from other users. Every database query automatically filters by api_key, ensuring you never see or modify another user's data.

Self-Evolving APIs

Don't see a field you need? Use the /futurerequest endpoint to request new features:

POST https://crudapi.ai/api/business/crm/futurerequest
Authorization: Bearer {jwt_token}
Content-Type: application/json

{
  "request": "I need to store mobile_phone and work_phone separately"
}

Requests are batched, deduplicated, and implemented based on demand. All agents benefit as the platform evolves.

Rate Limits

Fair-use rate limiting prevents abuse:

• API endpoints: 100 requests per minute per IP
• HTML pages: 1000 requests per minute per IP
• Service discovery: Unlimited (no authentication required)

Most agents will never hit these limits. Contact support if you need higher limits for production use.

Data Persistence

All data is stored in MySQL with:

• Soft deletes: Deleted records are marked with deleted_at timestamp, not permanently removed
• Audit trails: created_at, updated_at, created_by_user_id on all records
• Metadata fields: JSON metadata field for agent-specific data
• Tags: JSON tags field for categorization

Complete Service Catalog (All 124 APIs)

Below is the complete list of all available services. Each service is accessible via https://crudapi.ai/api/{category}/{service}/

Platform Services

Business Services (100 APIs)

Industry Services (7 APIs)

Regional Services (10 APIs)

Common API Operations

All CRUDAPI services follow standard REST conventions. Here are the most common operations:

List Resources (GET)

GET https://crudapi.ai/api/business/crm/
Authorization: Bearer {jwt_token}

Response:
{
  "items": [
    { "id": 1, "first_name": "John", "last_name": "Smith", ... },
    { "id": 2, "first_name": "Jane", "last_name": "Doe", ... }
  ],
  "total": 2,
  "page": 1,
  "limit": 50
}

Get Single Resource (GET)

GET https://crudapi.ai/api/business/crm/123
Authorization: Bearer {jwt_token}

Response:
{
  "id": 123,
  "first_name": "John",
  "last_name": "Smith",
  ...
}

Create Resource (POST)

POST https://crudapi.ai/api/business/crm/
Authorization: Bearer {jwt_token}
Content-Type: application/json

{
  "first_name": "John",
  "last_name": "Smith",
  "email": "john@example.com"
}

Response:
{
  "id": 124,
  "first_name": "John",
  "last_name": "Smith",
  "email": "john@example.com",
  "created_at": "2025-10-19T14:30:00Z"
}

Update Resource (PUT)

PUT https://crudapi.ai/api/business/crm/124
Authorization: Bearer {jwt_token}
Content-Type: application/json

{
  "phone": "+1-555-0100"
}

Response:
{
  "id": 124,
  "first_name": "John",
  "last_name": "Smith",
  "email": "john@example.com",
  "phone": "+1-555-0100",
  "updated_at": "2025-10-19T14:35:00Z"
}

Delete Resource (DELETE - Soft Delete)

DELETE https://crudapi.ai/api/business/crm/124
Authorization: Bearer {jwt_token}

Response:
{
  "success": true,
  "deleted_at": "2025-10-19T14:40:00Z"
}

Note: Deletions are soft deletes. The record is marked with deleted_at timestamp but not permanently removed.

Error Handling

All APIs return standard HTTP status codes and error messages in JSON format.

Common HTTP Status Codes

Error Response Format

{
  "error": "Validation Error",
  "message": "Missing required field: email",
  "field": "email",
  "code": "VALIDATION_ERROR",
  "timestamp": "2025-10-19T14:45:00Z"
}

Support & Resources

Documentation

• Interactive API Documentation (Swagger UI)
• OpenAPI 3.0 Specification
• Documentation Portal
• Getting Started Guide

API Endpoints for Discovery

• GET /services - List all services (JSON)
• GET /api/metadata - Platform metadata
• GET /api/services/health - Health status

Contact

For support, questions, or to request higher rate limits, contact:

• Email: support@crudapi.ai
• Documentation: https://docs.crudapi.ai
• GitHub: https://github.com/crudsaas