Built for AI Agents

Developer Platform

REST API, MCP server, and webhooks for trade business management. Your AI agent can sign up, operate, and pay — no human in the loop.

API Docs OpenAPI Spec Agent Card

Quick Start

Get running in under 60 seconds. No browser, no dashboard — pure API.

MCP Server REST API Onboarding

Add to your MCP client config

// Claude Desktop / Cursor config (SSE transport)
{
  "mcpServers": {
    "admin-substitute": {
      "url": "https://adminsubstitute.com/api/v1/mcp/sse",
      "headers": {
        "Authorization": "Bearer ask_YOUR_API_KEY"
      }
    }
  }
}

// Alternative: Streamable HTTP transport
// "url": "https://adminsubstitute.com/api/v1/mcp"
// "transport": "streamable-http"

Test the connection

# Probe the server (no auth needed)
curl -X POST https://adminsubstitute.com/api/v1/mcp \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "initialize",
    "params": {
      "protocolVersion": "2025-11-25",
      "capabilities": {},
      "clientInfo": { "name": "my-agent", "version": "1.0" }
    }
  }'

28 MCP Tools

Full trade business lifecycle via Model Context Protocol. An agent can run a trade business end-to-end: capture leads → quote → schedule → complete → invoice → collect reviews → track analytics.

leads.listREAD

List & filter leads/prospects

leads.createWRITE

Create new leads via API

leads.updateWRITE

Update lead status & details

quotes.listREAD

List quotes with line items

quotes.createWRITE

Draft quotes for leads

quotes.updateWRITE

Update quote status/details

quotes.sendWRITE

Send quote to client via SMS/email

jobs.listREAD

List jobs & schedules

jobs.createWRITE

Schedule new jobs

jobs.updateWRITE

Progress jobs through pipeline

jobs.completeWRITE

Mark job done + trigger reviews

jobs.send_etaWRITE

Notify client you're en route

invoicing.generateWRITE

Create invoice + payment link

reviews.requestWRITE

Request Google/Hipages review

reviews.platformsREAD

View configured review links

services.listREAD

Service catalog with pricing

services.createWRITE

Add service to catalog

services.updateWRITE

Edit service details/pricing

analytics.financialsREAD

Revenue & conversion metrics

analytics.detailedREAD

Full business analytics

analytics.dashboardREAD

Quick business overview

reminders.createWRITE

Schedule follow-up reminders

reminders.listREAD

View upcoming reminders

comms.listREAD

SMS & email message history

clients.listREAD

CRM client list with history

billing.usageREAD

Check API usage vs limits

billing.statusREAD

Plan, features & billing status

ecosystem.referral_linkREAD

Get referral link for commission

Three Ways to Integrate

MCP Server

Model Context Protocol — the native language of AI agents. Connect Claude, Cursor, or any MCP client directly.

• 28 tools
• SSE + HTTP transport
• Full business lifecycle
• JSON-RPC 2.0 batch
• Pro plan

REST API

Standard REST with Bearer auth. OpenAPI 3.1 spec available. Read-only on Growth, full CRUD on Pro.

• 7 endpoint groups
• OpenAPI 3.1 spec
• JSON responses
• Rate limited
• Growth+ plans

Webhooks

Inbound webhook events for real-time data sync. Push lead, quote, job, and payment events to your system.

• 5 event types
• Auto-process or queue
• Retry logic
• HMAC signing
• Pro plan

Agent-First Architecture

Admin Substitute is designed to be operated by AI agents, not just used by humans. Every capability is API-accessible.

A2A Discovery

/.well-known/agent-card.json — standard Agent-to-Agent discovery protocol.

Zero-Touch Onboard

POST /api/v1/onboard creates company, user, API key, and Stripe subscription in one call.

Scoped Permissions

API keys with granular scopes (leads, quotes, jobs, financials) and read/write/admin levels.

Usage Monitoring

Real-time API call tracking, SMS/email/LLM usage, plan limits — all via API.

Ready to integrate?

Growth plan ($400/mo AUD) includes REST API. Pro plan ($600/mo AUD) adds MCP server and webhooks. 14-day free trial on all plans — no credit card required.

View Plans Full API Docs

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