FreeAgent (via Apideck)

Access FreeAgent through Apideck's Accounting unified API — one of 34 Accounting connectors that share the same method surface. Code you write here ports to Access Financials, Acumatica, banqUP and 30 other Accounting connectors by changing a single serviceId string. Apideck handles auth, pagination, rate limiting, and retries so you don't write per-tenant FreeAgent plumbing.

Beta connector. FreeAgent is currently in beta on Apideck. Expect partial resource coverage and occasional mapping gaps. Always verify coverage (see below) and fall back to the Proxy API for unsupported operations.

Quick facts

• Apideck serviceId: freeagent
• Unified API: Accounting
• Auth type: oauth2
• Status: beta
• FreeAgent docs: https://dev.freeagent.com
• Homepage: https://www.freeagent.com/

When to use this skill

Activate this skill when the user explicitly wants to work with FreeAgent — for example, "create an invoice in FreeAgent" or "reconcile payments in FreeAgent". This skill teaches the agent:

1. Which Apideck unified API covers FreeAgent (Accounting)
2. The correct serviceId to pass on every call (freeagent)
3. FreeAgent-specific auth and coverage caveats

For the full method surface (parameters, pagination, filtering), use your language SDK skill:

• apideck-node, apideck-python, apideck-dotnet, apideck-java, apideck-go, apideck-php, or apideck-rest

For the raw OpenAPI spec:

• Accounting: https://specs.apideck.com/accounting.yml · API Explorer

Minimal example (TypeScript)

import { Apideck } from "@apideck/unify";

const apideck = new Apideck({
  apiKey: process.env.APIDECK_API_KEY,
  appId: process.env.APIDECK_APP_ID,
  consumerId: "your-consumer-id",
});

// List invoices in FreeAgent
const { data } = await apideck.accounting.invoices.list({
  serviceId: "freeagent",
});

Portable across 34 Accounting connectors

The Apideck Accounting unified API exposes the same methods for every connector in its catalog. Switching from FreeAgent to another Accounting connector is a one-string change — no rewrite, no new SDK.

// Today — FreeAgent
await apideck.accounting.invoices.list({ serviceId: "freeagent" });

// Tomorrow — same code, different connector
await apideck.accounting.invoices.list({ serviceId: "access-financials" });
await apideck.accounting.invoices.list({ serviceId: "acumatica" });

This is the compounding advantage of using Apideck over integrating FreeAgent directly: code against the unified Accounting API once, gain access to every connector in it. New connectors Apideck adds become available to your app without code changes.

FreeAgent via Apideck Accounting

FreeAgent is a UK-focused cloud accounting platform for freelancers and small businesses, part of NatWest Group. Popular for MTD-compliant VAT and self-assessment flows.

Entity mapping

Coverage highlights

• ✅ CRUD on invoices, bills, credit notes, customers, suppliers
• ✅ Journal entries
• ✅ Financial reports (P&L, Balance Sheet)
• ✅ Bank accounts
• ⚠️ VAT returns / MTD submission — use Proxy with FreeAgent's /v2/vat_returns endpoints
• ❌ Time tracking, project management — use Proxy
• ❌ Self-assessment / Personal tax — use Proxy

Auth notes

• Type: OAuth 2.0, managed by Apideck Vault
• Company binding: one FreeAgent company per connection.
• MTD (Making Tax Digital): FreeAgent is HMRC-recognized. VAT submission requires additional Agent Services Account permissions not covered by the unified API.

Example: list unpaid invoices

const { data } = await apideck.accounting.invoices.list({
  serviceId: "freeagent",
  filter: { status: "open" },
});

Escape hatch: Proxy API

When an endpoint isn't covered by the Accounting unified API, use Apideck's Proxy to call FreeAgent directly — Apideck injects auth headers and handles token refresh. Set x-apideck-downstream-url to the target endpoint on FreeAgent's own API:

curl 'https://unify.apideck.com/proxy' \
  -H "Authorization: Bearer ${APIDECK_API_KEY}" \
  -H "x-apideck-app-id: ${APIDECK_APP_ID}" \
  -H "x-apideck-consumer-id: ${CONSUMER_ID}" \
  -H "x-apideck-service-id: freeagent" \
  -H "x-apideck-downstream-url: <target endpoint on FreeAgent>" \
  -H "x-apideck-downstream-method: GET"

See FreeAgent's API docs for available endpoints.

Sibling connectors

Other Accounting connectors that share this unified API surface (same method signatures, just change serviceId):

access-financials (beta), acumatica (beta), banqup (beta), campfire (beta), clearbooks-uk (beta), digits (beta), dualentry, exact-online, and 25 more.

See also

• Accounting OpenAPI spec · API Explorer
• apideck-connector-coverage — programmatic coverage checks
• apideck-best-practices — architecture, Vault, pagination, error handling
• apideck-node — TypeScript / Node SDK patterns
• FreeAgent official docs