Fenceline

External API

External integration documentation

Use the documented API resources and schemas to evaluate integrations with Fenceline.

QUICK START

curl -s \
  -H "x-api-key: $API_KEY" \
  "https://api.fenceline.ai/api/v1/invoices?contractorId=abc123&limit=50"

Built for Integration

Accounting Sync

Export to QuickBooks and similar platforms

BI Ready

Neutral data format for any BI tool

Authenticated Access

API key authentication and endpoint rate limits

API Endpoints

Metadata

Discover resources and fields

GET /metadata

Customers

Neutral customer list

GET /customers

Projects

High-level project records

GET /projects

Invoices

Export invoice data

GET /invoices

Payments

Export payment receipts

GET /payments

Common params: contractorId limit updatedAfter pageToken

Authentication

Include your API key in request headers:

x-api-key: YOUR_API_KEY

Authorization: Bearer YOUR_API_KEY

Rate Limits

Default: 10 requests/minute per endpoint

429 Rate limit exceeded

Retry-After Seconds to wait

RateLimit Responses carry the IETF draft RateLimit / RateLimit-Policy headers alongside the X-RateLimit-* set

Versioning and deprecation

The API is versioned in the URL path (/api/v1). Breaking changes ship as a new version, never in place.

Deprecated versions or endpoints get at least 90 days' notice, signaled with Deprecation and Sunset headers (RFC 9745) and announced on this page. Urgent security or legal changes may move faster.
Backward-compatible additions — new fields, new endpoints — can appear without notice. Clients must tolerate unknown fields.

MCP Integration

Connect AI tools to Fenceline's hosted MCP server: endpoint, authentication, and what agents can do with contractor data.

Fenceline MCP →

Support Center

Get help with API integration, troubleshooting, and best practices.

Get Support →

Platform Access

Access the contractor platform to see the full system in action.

Ready to Build?

Explore our comprehensive documentation and start integrating today.

API Explorer Developer Guide OpenAPI Spec

Need an API key? Contact your Fenceline administrator.