PRO+ PLAN — 150+ API ENDPOINTS — 3 SCHEMA FORMATS

Cornerstone PM™ API

150+ REST API endpoints — 84 dedicated RESTful routes with clean URLs plus a generic execute endpoint that exposes all 396+ Foreman AI skills via REST. 3 schema formats: Anthropic, OpenAI function calling, and OpenAPI 3.1. Pro+ API key auth with role-based permissions. JSON in, JSON out.

Request API Access →Browse endpoints
/developers →
Live API reference & curl examples
/skills →
Foreman AI skill catalog (396+ skills)
150+
API endpoints
84 dedicated + execute for 396+ skills
3
Schema formats
Anthropic · OpenAI · OpenAPI 3.1
37+
Webhook events
Real-time, HMAC-signed
396+
Foreman skills
All callable via REST

Authentication

All API requests require a Bearer token. Create scoped API keys in Admin → API Keys. Each key has specific permissions so you can restrict what each integration can do.

vendors:read
vendors:write
bids:read
bids:write
payments:write
webhooks:write
homes:read
tasks:write

Example request

curl https://app.cornerstonepm.ai/api/ext/vendors \


  -H "Authorization: Bearer cspm_your_key_here" \


  -H "Content-Type: application/json"

84 Dedicated RESTful Routes + Generic Execute

All endpoints prefixed with https://app.cornerstonepm.ai

Plus POST /api/ext/execute — a generic endpoint that runs any of Foreman's 396+ skills by name. Built on 110+ database tables — every endpoint reflects real construction data.

37+ Named Webhook Events (Growing)

HMAC SHA-256 signature verification via X-Webhook-Signature header. 10s timeout, auto-disable after 50 consecutive failures.

vendor.createdvendor.updatedvendor.invitedbid_request.createdbid_request.updatedbid_request.sentbid.submittedbid.acceptedbid.rejectedpayment.createdpayment.voidedhome.createdhome.status_changedtask.completedtask.status_changedpo.createdpo.status_changeduser.logged_inmilestone.completedvendor.notification.advancevendor.notification.remindervendor.notification.moved_earliervendor.notification.postponedmessage.sentlead.createdlead.convertedsale.createdsale.approvedsale.pipeline_completesale.cancelled

Code Examples

Copy-paste ready. Replace cspm_your_key_here with your API key from Admin → API Keys.

Create a vendor
curl -X POST https://app.cornerstonepm.ai/api/ext/vendors \


  -H "Authorization: Bearer cspm_your_key_here" \


  -H "Content-Type: application/json" \


  -d '{


    "companyName": "ABC Plumbing LLC",


    "email": "[email protected]",


    "phone": "555-0192",


    "scopes": ["Plumbing"],


    "contactName": "Mike Johnson"


  }'
Send a bid request
curl -X POST https://app.cornerstonepm.ai/api/ext/bids/request \


  -H "Authorization: Bearer cspm_your_key_here" \


  -H "Content-Type: application/json" \


  -d '{


    "vendorIds": ["v_abc123", "v_def456"],


    "scope": "Plumbing",


    "deadline": "2026-05-15",


    "communityId": "c_xyz789",


    "message": "Please bid rough-in only for 3 units."


  }'
Get home budget by scope
curl https://app.cornerstonepm.ai/api/ext/homes/h_456/budget \


  -H "Authorization: Bearer cspm_your_key_here"





// Returns:


{


  "scopes": [


    { "scope": "Plumbing", "budgeted": 18400, "committed": 16200 },


    { "scope": "Electrical", "budgeted": 22000, "committed": 19800 }


  ],


  "totalBudgeted": 312400,


  "totalCommitted": 287600


}
Register a webhook
curl -X POST https://app.cornerstonepm.ai/api/ext/webhooks \


  -H "Authorization: Bearer cspm_your_key_here" \


  -H "Content-Type: application/json" \


  -d '{


    "url": "https://your-server.com/webhooks/cornerstone",


    "eventTypes": ["bid.submitted", "payment.created"],


    "secret": "your_webhook_secret"


  }'

Rate Limits

100
Requests / minute
Per API key
10,000
Requests / day
Per organization
10s
Webhook timeout
Auto-disable after 50 failures

Built to integrate

Cornerstone PM™ is the connective layer between your AI agents, your accounting, and your subcontractors.

🪖

Built for AI Agents

Foreman AI uses this API internally with 396+ skills. Any AI agent - LangChain, AutoGen, Claude, GPT-4o - can connect via Bearer token.

📊

QuickBooks Ready

qboId fields on vendors, homes, POs, and communities for seamless QuickBooks sync. Keep your books without double entry.

⚡

Zapier Compatible

Standard REST endpoints work with any Zapier webhook trigger or action. Connect to 5,000+ apps without writing code.

📞

Automated Bidding Pipeline

AI voice agent calls vendors, API creates records, vendor portal collects bids, you compare and award. Zero manual steps.

Pro+ Plan Feature
$599/mo
Pro+ Plan
150+ API endpoints (84 dedicated routes + generic execute for all 396+ Foreman skills)
Scoped API keys per integration
37+ named webhook events (catalog growing) with HMAC signing
100 req/min, 10,000 req/day rate limits
Foreman AI (396+ skills, Claude Sonnet 4, 930 conversations/mo)
Blueprint AI (50 takeoffs/mo)
Automated 7-wave bidding pipeline
Dedicated onboarding & SLA
Request API Access →

Beta limited to 100 builders · No credit card required

JobTread has ~40 Pave objects.
We have 150+ API endpoints. Every Foreman skill callable via REST.

Standard REST. No custom query language. If your AI agent can make an HTTP request, it works with Cornerstone PM™.

Request Early Access