PlatformUnified API

One API for a whole category of tools

Instead of learning Salesforce, HubSpot, and Pipedrive separately, call one CRM API. fastn normalizes the common model and still exposes each tool's custom fields and objects.

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Salesforcenative response

{ "FirstName": "Ada",
  "Email": "ada@acme.io",
  "Account": { "Name": "Acme" },
  "Region__c": "EMEA" }

HubSpotnative response

{ "properties": {
    "firstname": "Ada", "email": "ada@acme.io",
    "company": "Acme",
    "region": "EMEA" } }

PDPipedrivenative response

{ "first_name": "Ada",
  "email": [{ "value": "ada@acme.io" }],
  "org_name": "Acme",
  "a1b2c3": "EMEA" }

GET/crm/contacts/42

fastnunified API

Your product receivesone shape

{
  "first_name": "Ada",
  "email": "ada@acme.io",
  "company": "Acme",
  "custom": { "region": "EMEA" },
  "source": "salesforce""hubspot""pipedrive"
}

Salesforce1 of 3 providers

{ "FirstName": "Ada",
  "Email": "ada@acme.io",
  "Account": { "Name": "Acme" },
  "Region__c": "EMEA" }

HubSpot2 of 3 providers

{ "properties": {
  "firstname": "Ada",
  "email": "ada@acme.io",
  "company": "Acme", "region": "EMEA" } }

PDPipedrive3 of 3 providers

{ "first_name": "Ada",
  "email": [{ "value": "ada@acme.io" }],
  "org_name": "Acme",
  "a1b2c3": "EMEA" }

GET/crm/contacts/42

fastnunified API

Your product receivesone shape

{
  "first_name": "Ada",
  "email": "ada@acme.io",
  "company": "Acme",
  "custom": { "region": "EMEA" },
  "source": "salesforce""hubspot""pipedrive"
}

What you get

One schema, many tools

A single set of endpoints covers every tool in a category. Add a new provider without changing your code.

Custom fields, not just common ones

Unlike rigid unified APIs, fastn passes through each customer's custom fields, objects, and pipelines.

Read and write

Full two-way sync, pull records and push updates back, with field mapping handled per tenant.

How it works

01 · Pick a category

CRM, ticketing, HRIS, accounting, choose the unified API your product needs.

02 · Integrate once

Build against one schema. Your customers connect whichever provider they use.

03 · Ship providers free

New tools in the category work through the same code with no extra build.

Start building today.

3 customer connections freeno cardno sales call

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