Developer Platform

API and Integrations

Connect your systems to Deal Star's tax credit marketplace. A fully documented RESTful API, webhook notifications, bulk data tools, and an MCP server for AI-assisted workflows.

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Use Cases

Built for How You Work

Whether you build software, broker deals, or manage portfolios -- the API adapts to your workflow.

Developers

Automate credit listing creation, sync project data with internal systems, and build custom integrations on top of Deal Star's marketplace.

Automate credit listing and project data sync
Webhook-driven event architecture
Comprehensive SDK and code examples

Brokers

Broadcast portfolios programmatically, match buyers via API, and manage deal flow without logging into the platform.

Portfolio broadcast and buyer matching
Deal pipeline management endpoints
Real-time notifications on deal events

Financial Institutions

Bulk credit purchasing, compliance data feeds, and automated reporting for institutional-scale tax credit operations.

Bulk credit purchasing workflows
Compliance and diligence data feeds
Automated audit-ready reporting

Advisors

Pull client portfolio reports, match tax liability to available credits, and generate savings analyses -- all via API.

Client portfolio reporting endpoints
Tax liability matching algorithms
White-label savings reports

Capabilities

Integration Capabilities

A complete toolkit for connecting your systems to the tax credit marketplace.

RESTful API

Fully documented REST endpoints for projects, tax credits, portfolios, deals, and compliance data. JSON responses, token-based authentication, and rate limiting built in.

Webhook Notifications

Subscribe to real-time events for deal status changes, document uploads, compliance updates, and buyer activity. HTTPS delivery with retry logic and signature verification.

Bulk Import / Export

Upload portfolios and project data in CSV or JSON. Export deal histories, compliance records, and transaction reports in bulk for offline analysis.

MCP Server for AI Workflows

Connect AI assistants directly to Deal Star via the Model Context Protocol. Automate diligence queries, portfolio analysis, and deal screening with natural language.

Quick Start

Simple, Predictable API

Standard REST conventions, JSON payloads, and clear error responses. Here is what a typical request looks like.

List available tax credits

# List available tax credits with filtering
curl -X GET "https://api.getdealstar.com/v1/tax_credits" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "credit_type": "itc",
    "min_amount": 500000,
    "status": "available",
    "placed_in_service": true
  }'

Response

{
  "data": [
    {
      "id": "tc_8x4kL9mN",
      "credit_type": "itc",
      "amount": 2750000,
      "price_per_dollar": 0.91,
      "project": {
        "name": "Sunrise Solar Farm",
        "technology": "solar",
        "state": "TX",
        "placed_in_service": "2025-09-15"
      },
      "status": "available",
      "diligence_score": 94
    }
  ],
  "meta": {
    "total": 47,
    "page": 1,
    "per_page": 25
  }
}

Documentation

Comprehensive API Reference

Full endpoint documentation, authentication guides, rate limit details, and integration examples.

Getting Started

Authentication, base URLs, versioning, and your first API call.

Endpoint Reference

Complete reference for all API endpoints with request and response schemas.

Webhooks Guide

Event types, payload schemas, signature verification, and retry policies.

Ready to integrate?

Request API access and get your credentials. Our team will walk you through authentication, rate limits, and best practices for your use case.