Official SDKs

CrowdProof provides official SDKs for 6 languages. Each SDK wraps the REST API with idiomatic patterns, typed responses, and built-in retry logic.

Available SDKs

Language	Package	Install
TypeScript	`@crowdproof/sdk`	`npm install @crowdproof/sdk`
Python	`crowdproof`	`pip install crowdproof`
Go	`crowdproof-go`	`go get github.com/crowdproof/crowdproof-go`
C#	`CrowdProof.SDK`	`dotnet add package CrowdProof.SDK`
Java	`crowdproof-java`	Maven / Gradle
Swift	`CrowdProofSDK`	Swift Package Manager

All SDKs share a consistent feature set:

Typed responses — Score, Proof, DID, Dispute objects with full type safety
Automatic retries — Exponential backoff on 429 and 5xx errors
Rate limit awareness — Reads Retry-After headers
API key injection — Pass once at init, included in every request
Error hierarchy — Base CrowdProofError with typed subclasses per HTTP status

// TypeScript
const score = await client.getScore('0x1234...', 'DEFI_LENDING');

# Python
score = client.get_score("0x1234...", "DEFI_LENDING")

// Go
score, err := client.GetScore(ctx, "0x1234...", "DEFI_LENDING")

// C#
var score = await client.GetScoreAsync("0x1234...", "DEFI_LENDING");

// Java
Score score = client.getScore("0x1234...", "DEFI_LENDING");

// Swift
let score = try await client.getScore("0x1234...", category: .defiLending)

All SDKs are open source under the MIT license: