Your backend, handled

The data layer for
your product

Define your data model, and Fluidlee gives you the whole backend around it: schema, REST API, tenants, rules and audit. Your backend calls it with one API key, and your team stays free for the part of the product only you can build.

Request early access → See what’s inside →
  • REST · OpenAPI
  • Multi-tenant
  • Audit log
  • Webhooks
  • Rules
dashboard · /northwind-care Live
Project
Tenants 47
API keys 3
Schema · v23
12 entities, 14 relations.
P patient 6
mrntext
first_nametext
clinician_id→ clinician
I invoice 5
patient_id→ patient
amountdecimal
statustext
Auto-generated GET /patient POST /invoice

The pitch

If you’re building a software product, you already know the foundation it stands on: Tenants. Audit. Permissions. A way for non-engineers to shape the data model. Webhooks that fire the moment something changes.

That’s the part we love to run for you, so you can pour your time into the product only you can build.

01 · What you get

Everything your backend needs, already built.

Six essentials, delivered as one API and one dashboard, so your energy goes straight to the product your customers came for.

01 REST · OpenAPI

A REST API from your schema

Sketch your entities in the dashboard. The API is there before you refresh the page. Validation, relations and an OpenAPI spec come with it.

02 Isolation · Audit

Multi-tenant, handled for you

Tenants are isolated at the data layer. Every read and write is scoped to one tenant, and every change lands in an audit trail that’s ready from day one.

03 Rules · Webhooks

Rules and computed fields

Computed fields, before and after hooks, scheduled jobs, webhooks: the logic that shifts as your business does, now something your team can adjust in a few clicks.

04 Server-side

Sits behind your auth

Fluidlee is a server-to-server API. Your backend holds the API key, maps each logged-in user to a tenant, and calls us on their behalf. Your auth stays yours, and we work quietly behind the scenes.

05 Enterprise tier

Isolation when you outgrow shared

Most tenants happily share infrastructure. When a contract calls for more, move that tenant to its own database, and your code stays exactly the same.

06 Dashboard

A dashboard your team will actually use

A real UI for editing schemas, drawing rules, testing requests and reading audit logs, friendly enough that most days your whole team runs it, not just your engineers.

The whole product, in detail →

02 · See it work

One key. One scoped call.

Your backend authenticates against Fluidlee, names the tenant, and reads or writes, like any other REST API.

  1. 01
    Send your project’s API key.One or more per project, revocable from the dashboard.
  2. 02
    Name the tenant.Your backend already knows which tenant the logged-in user belongs to.
  3. 03
    Read or write any entity.Validation, relations and computed fields are enforced server-side.
  4. 04
    The audit log records it.Who, what, when, before, after, captured for you automatically.
POST api.fluidlee.com/invoice 201 · 34ms 
curl https://api.fluidlee.com/invoice \
  -H "Authorization: Bearer flk_live_a8f3..." \
  -H "X-Tenant-ID: 550e8400-e29b-41d4-a716-446655440000" \
  -H "X-Actor-ID: usr_2f10" \
  -H "Content-Type: application/json" \
  -d '{ "patient_id": "550e8400-...",
       "amount": 1840.00,
       "status": "pending" }'

# before_create rules run · audit entry written
{
  "data": {
    "id": "8a91c4b2-...",
    "created_at": "2026-07-24T14:22:11Z"
  }
}

Read the API reference →

03 · How it works

From sketch to API in an afternoon.

  1. 01 Dashboard · 5 min

    Set up the data model

    Entities, fields, relations, drawn on a canvas. Reshape it whenever the business evolves.

    patient · invoice · clinician
  2. 02 Per project

    Get a REST API and an API key

    The API exists the moment the schema does. Tenants and isolation are already wired up.

    flk_live_a8f3…
  3. 03 Server-to-server

    Your backend calls Fluidlee

    Scoped to whichever tenant the logged-in user belongs to. Your frontend talks to your backend, like always.

    Authorization: Bearer …

04 · Pricing

Start free. Pay when it’s real.

The limits below are exactly what the platform enforces: clear, honest, and the same at the end of the month as the day you signed up.

Free $0

One project, three tenants, 100 MB. Enough to prove the idea works.

See what’s included →
Pro $99 / month

Five projects, 50 tenants each, formulas, scheduled rules, multi-step webhooks.

Compare the tiers →
Enterprise Contact sales

A dedicated database per tenant, 365-day audit retention, limits set with you.

Talk to us →

Tell us what you’re building.

We’re welcoming a few teams in at a time. Send a few sentences about the product and what you’d love your backend to handle.

Request early access → See it in a vertical →