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HoldedAPIintegration&MCPserver

Deliver real-time CRM faster, close sales deals sooner, and scale without an integration backlog.

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Add Holded and 22 other pre-built CRM integrations

Real-time data to fuel countless CRM use cases

Power AI copilots, insights, predictive analysis, and automation with a modern integration infrastructure that scales alongside you.

crm

Generate Leads

Automate capturing leads and keep CRM information up-to-date.

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crm

Generate Insights

Pull CRM data to generate insights about customer behavior and preferences.

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crm

Score Leads

Analyze CRM data to automatically score and prioritize leads.

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Unified MCP

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ACCOUNTING Invoice

ACCOUNTING Contact

CRM Contact

COMMERCE Item

MARTECH List

MARTECH Member

COMMERCE Location

ACCOUNTING Taxrate

ACCOUNTING Journal

ACCOUNTING Account

Payment

CRM Pipeline

CRM Deal

CRM Event

HRIS Employee

ACCOUNTING Bill

ACCOUNTING Creditmemo

ACCOUNTING Salesorder

ACCOUNTING Purchaseorder

ACCOUNTING Organization

COMMERCE Itemvariant

Passthrough

ACCOUNTING Invoice

ACCOUNTING Contact

CRM Contact

COMMERCE Item

MARTECH List

MARTECH Member

COMMERCE Location

ACCOUNTING Taxrate

ACCOUNTING Journal

ACCOUNTING Account

Payment

CRM Pipeline

CRM Deal

CRM Event

HRIS Employee

ACCOUNTING Bill

ACCOUNTING Creditmemo

ACCOUNTING Salesorder

ACCOUNTING Purchaseorder

ACCOUNTING Organization

COMMERCE Itemvariant

Passthrough

Your customer's data

on Holded

Unified API data-models and methods

ACCOUNTING Invoice

create list get update remove

ACCOUNTING Contact

list get

CRM Contact

list get create update remove

COMMERCE Item

list get

MARTECH List

list get

MARTECH Member

list get

COMMERCE Location

list get

ACCOUNTING Taxrate

list

ACCOUNTING Journal

list

ACCOUNTING Account

list create

Payment

list get

CRM Pipeline

list get

CRM Deal

list get

CRM Event

list get

HRIS Employee

list get create update remove

ACCOUNTING Bill

create list get update remove

ACCOUNTING Creditmemo

create list get update remove

ACCOUNTING Salesorder

create list get update remove

ACCOUNTING Purchaseorder

create list get update remove

ACCOUNTING Organization

list get

COMMERCE Itemvariant

list get

Passthrough

get post put patch delete

249 Unified MCP tools

list all deals2 parameters

retrieve a deal2 parameters

create a contact14 parameters

list all contacts2 parameters

retrieve a contact2 parameters

update a contact15 parameters

remove a contact2 parameters

list all events2 parameters

retrieve an event2 parameters

list all pipelines2 parameters

retrieve a pipeline2 parameters

list all lists2 parameters

retrieve a list2 parameters

list all members2 parameters

retrieve a member2 parameters

create an employee32 parameters

list all employees2 parameters

retrieve an employee2 parameters

update an employee33 parameters

remove an employee2 parameters

create an account14 parameters

list all accounts2 parameters

list all journals2 parameters

list all contacts2 parameters

retrieve a contact2 parameters

create an invoice23 parameters

list all invoices2 parameters

retrieve an invoice2 parameters

update an invoice24 parameters

remove an invoice2 parameters

create a bill23 parameters

list all bills2 parameters

retrieve a bill2 parameters

update a bill24 parameters

remove a bill2 parameters

create a creditmemo23 parameters

list all creditmemoes2 parameters

retrieve a creditmemo2 parameters

update a creditmemo24 parameters

remove a creditmemo2 parameters

list all taxrates2 parameters

retrieve an organization2 parameters

list all organizations 1 parameter

create a purchaseorder10 parameters

list all purchaseorders2 parameters

retrieve a purchaseorder2 parameters

update a purchaseorder11 parameters

remove a purchaseorder2 parameters

create a salesorder11 parameters

list all salesorders2 parameters

retrieve a salesorder2 parameters

update a salesorder12 parameters

remove a salesorder2 parameters

list all items2 parameters

retrieve an item2 parameters

list all locations2 parameters

retrieve a location2 parameters

list all payments2 parameters

retrieve a payment2 parameters

list all your entries3 parameters

create entry3 parameters

list all your accounting accounts3 parameters

create a new accounting account3 parameters

list all deals2 parameters

retrieve a deal2 parameters

create a contact14 parameters

list all contacts2 parameters

retrieve a contact2 parameters

update a contact15 parameters

remove a contact2 parameters

list all events2 parameters

retrieve an event2 parameters

list all pipelines2 parameters

retrieve a pipeline2 parameters

list all lists2 parameters

retrieve a list2 parameters

list all members2 parameters

retrieve a member2 parameters

create an employee32 parameters

list all employees2 parameters

retrieve an employee2 parameters

update an employee33 parameters

remove an employee2 parameters

create an account14 parameters

list all accounts2 parameters

list all journals2 parameters

list all contacts2 parameters

retrieve a contact2 parameters

create an invoice23 parameters

list all invoices2 parameters

retrieve an invoice2 parameters

update an invoice24 parameters

remove an invoice2 parameters

create a bill23 parameters

list all bills2 parameters

retrieve a bill2 parameters

update a bill24 parameters

remove a bill2 parameters

create a creditmemo23 parameters

list all creditmemoes2 parameters

retrieve a creditmemo2 parameters

update a creditmemo24 parameters

remove a creditmemo2 parameters

list all taxrates2 parameters

retrieve an organization2 parameters

list all organizations 1 parameter

create a purchaseorder10 parameters

list all purchaseorders2 parameters

retrieve a purchaseorder2 parameters

update a purchaseorder11 parameters

remove a purchaseorder2 parameters

create a salesorder11 parameters

list all salesorders2 parameters

retrieve a salesorder2 parameters

update a salesorder12 parameters

remove a salesorder2 parameters

list all items2 parameters

retrieve an item2 parameters

list all locations2 parameters

retrieve a location2 parameters

list all payments2 parameters

retrieve a payment2 parameters

List Funnels

Create Funnel 1 parameter

Get Funnel2 parameters

Update Funnel7 parameters

Delete Funnel2 parameters

List Leads

Create Lead8 parameters

Get Lead2 parameters

Update Lead7 parameters

Delete Lead2 parameters

Create Lead Note4 parameters

Update Lead Note5 parameters

Create Lead Task3 parameters

Update Lead Task4 parameters

Delete Lead Task2 parameters

Update Lead Creation Date3 parameters

Update Lead Stage3 parameters

List Events

Create Event12 parameters

Get Event2 parameters

Update Event14 parameters

Delete Event2 parameters

list all deals2 parameters

retrieve a deal2 parameters

create a contact14 parameters

list all contacts2 parameters

retrieve a contact2 parameters

update a contact15 parameters

remove a contact2 parameters

list all events2 parameters

retrieve an event2 parameters

list all pipelines2 parameters

retrieve a pipeline2 parameters

list all lists2 parameters

retrieve a list2 parameters

list all members2 parameters

retrieve a member2 parameters

create an employee32 parameters

list all employees2 parameters

retrieve an employee2 parameters

update an employee33 parameters

remove an employee2 parameters

create an account14 parameters

list all accounts2 parameters

list all journals2 parameters

list all contacts2 parameters

retrieve a contact2 parameters

create an invoice23 parameters

list all invoices2 parameters

retrieve an invoice2 parameters

update an invoice24 parameters

remove an invoice2 parameters

create a bill23 parameters

list all bills2 parameters

retrieve a bill2 parameters

update a bill24 parameters

remove a bill2 parameters

create a creditmemo23 parameters

list all creditmemoes2 parameters

retrieve a creditmemo2 parameters

update a creditmemo24 parameters

remove a creditmemo2 parameters

list all taxrates2 parameters

retrieve an organization2 parameters

list all organizations 1 parameter

create a purchaseorder10 parameters

list all purchaseorders2 parameters

retrieve a purchaseorder2 parameters

update a purchaseorder11 parameters

remove a purchaseorder2 parameters

create a salesorder11 parameters

list all salesorders2 parameters

retrieve a salesorder2 parameters

update a salesorder12 parameters

remove a salesorder2 parameters

list all items2 parameters

retrieve an item2 parameters

list all locations2 parameters

retrieve a location2 parameters

list all payments2 parameters

retrieve a payment2 parameters

get all your contact

create a new contact17 parameters

get a specific contact2 parameters

update a specific contact16 parameters

delete specific contact2 parameters

List Products

Create Product2 parameters

Get Product2 parameters

Update Product11 parameters

Delete Product2 parameters

List Warehouses

Create Warehouse6 parameters

Get Warehouse2 parameters

Update Warehouse2 parameters

Delete Warehouse2 parameters

List Treasuries

Create Treasury

Get Treasury2 parameters

Update Treasury2 parameters

Delete Treasury2 parameters

Get Numbering Series2 parameters

Create Numbering Series6 parameters

Update Numbering Series7 parameters

Delete Numbering Series4 parameters

list all your expenses accounts

create an expenses account2 parameters

get a specific expenses account2 parameters

update a specific expenses account5 parameters

delete a specific expenses account2 parameters

List Sales Channels

Create Sales Channel2 parameters

Get Sales Channel2 parameters

Update Sales Channel5 parameters

Delete Sales Channel2 parameters

List Payments

Create Payment5 parameters

Get Payment2 parameters

Update Payment7 parameters

Delete Payment2 parameters

get all your documents by type2 parameters

create a new document type18 parameters

get a specific document4 parameters

pay one specific document8 parameters

update a specific document12 parameters

delete specific document type4 parameters

send a sepecific document by email9 parameters

The modern Unified API platform, built differently

Real-time, pass-through

Every request hits the source API live. No caching, no sync jobs, no stale data — just on-demand API reads/writes with native and virtual webhooks for instant updates.

Zero-storage by design

We never store end-customer data. Traffic is stateless and regionalized (US/EU/AU), reducing compliance scope and eliminating data-at-rest risk.

One API, deeply normalized

370+ integrations, 24 categories... Unified objects, endpoints, scopes, and errors—plus raw payload passthrough when you need provider-specific fields.

Custom fields & objects

Go beyond shallow schemas. We support custom fields and read/write on custom objects (e.g., Salesforce) via unified metadata APIs.

AI-ready integrations

Built for AI products: real-time streams for RAG/embeddings and Unified MCP tools that securely grant LLMs controlled integration access.

Predictable pricing, no lock-in

Transparent usage-based pricing that scales with API volume—not customers. Own your credentials and migrate anytime.

Add a Holded integration to your application in hours

1Test drive integrations

Effortlessly test API calls, explore endpoints, and try out the Holded integration using synthetic data in our Sandbox environment.

2Authorize connections

Drop in our Authorization component with a single line of code. Your users can then connect and grant access to their Holded data.

3Start making API calls

Use the Connection ID to interact with Holded via our unified API. We handle maintenance and updates so you can focus on your product.

Seamless Auth, no extra work

Unified.to removes the complexity of authentication and authorization so you can focus on building your product, not managing auth flows. Our pre-built UI and flexible API handle everything in the background—no extra setup required.

See documentation

React

React component React component source code

Trusted by global product companies and developers to power integrations for innovative AI and SaaS applications

5 stars on G2

Integrate with all the major crm applications

Unified.to makes it possible to integrate once to a unified API to connect with all the applications your customers use, so you can train AI models, build advanced automation, and expand your market.

Start testing for free