io.usefulapiPublished by usefulapi.ioOfficial publisherv1.14.4Updated Nov 7, 2026
Search and read Sellsy companies, contacts, opportunities, invoices and tasks; create records.
The publisher's own server: Ably MCP by usefulapi
Hosted MCP server that lets an assistant search and read Sellsy CRM records — companies, contacts, opportunities, invoices, orders and tasks — and create a…
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/io.usefulapi%2Fsellsy/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.Add this to your client's mcpServers config.
{
"mcpServers": {
"sellsy-by-usefulapi": {
"type": "http",
"url": "https://sellsy.usefulapi.io/mcp"
}
}
}Live endpoint: https://sellsy.usefulapi.io/mcp · Homepage: https://usefulapi.io/sellsy
https://sellsy.usefulapi.io/mcp.claude mcp add --transport http sellsy https://sellsy.usefulapi.io/mcp, then run /mcp to log in.Add only the URL. Do not add an Authorization header or an API key to the client config: the server signs you in with OAuth, and the login page asks for your Sellsy credentials.
Step-by-step setup, where to find your credentials, and FAQ: https://usefulapi.io/sellsy/
read tools are read-only; write tools mutate data (clients should confirm them); meta tools report usage, manage your subscription or send a feature request.
*Pro has a fair use limit of 10,000 tool calls a month on this server. For more, write to [email protected].
Pro covers this server only. Subscribe with sellsy_upgrade (it returns a Stripe Checkout link). Cancel any time with sellsy_cancel_subscription: Pro continues to the end of the paid period, with no refund for the current period, and running sellsy_upgrade before then undoes the cancel. Or write to [email protected].
Source: servers/sellsy/README.md at commit 9349cfd
Search across Sellsy
Free-text search over companies, individuals, contacts, opportunities, items, documents and staff in one call (GET /search). Use it to find a record by name, email or number when you do not know its type. Needs the search.read scope.
qrequiredtypelimitarchivedList companies
List companies (customers, prospects, suppliers) with paging. Needs companies.read.
embedfieldlimitorderoffsetdirectionSearch companies
Search companies by name, email, type (prospect/client/supplier), reference, VAT, SIRET, country, postal code, creation or update date. Needs companies.read.
embedfieldlimitorderoffsetfiltersdirectionGet a company
Get one company by id. Needs companies.read.
idrequiredembedfieldList a company's contacts
List the contacts linked to one company (GET /companies/{id}/contacts). Needs companies.read and contacts.read.
limitoffsetcompany_idrequiredList individuals
List individuals (private customers, prospects, suppliers) with paging. Needs individuals.read.
embedfieldlimitorderoffsetdirectionSearch individuals
Search individuals by name, email, type, reference, country, postal code, creation or update date. Needs individuals.read.
embedfieldlimitorderoffsetfiltersdirectionGet an individual
Get one individual by id. Needs individuals.read.
idrequiredembedfieldList contacts
List contacts (people at companies) with paging. Needs contacts.read.
embedfieldlimitorderoffsetdirectionSearch contacts
Search contacts by last name, email, phone, linked company or individual, creation date. Needs contacts.read.
embedfieldlimitorderoffsetfiltersdirectionGet a contact
Get one contact by id. Needs contacts.read.
idrequiredembedfieldList opportunities
List sales opportunities with paging. Needs opportunities.read.
embedfieldlimitorderoffsetdirectionSearch opportunities
Search opportunities by name, number, pipeline, step, status (open/won/lost/cancelled/closed/late), amount, owner or due date. Needs opportunities.read.
embedfieldlimitorderoffsetfiltersdirectionGet an opportunity
Get one opportunity by id. Needs opportunities.read.
idrequiredembedfieldList opportunity pipelines
List the sales pipelines (needed to create an opportunity: pipeline id and step id). Needs opportunities.read.
limitoffsetList the steps of a pipeline
List the steps of one opportunity pipeline. Needs opportunities.read.
limitoffsetpipeline_idrequiredList estimates
List estimates (quotes) with paging. Needs estimates.read.
embedfieldlimitorderoffsetdirectionSearch estimates
Search estimates by status, number, date, currency, owner, contact or related company/individual/opportunity. Needs estimates.read.
embedfieldlimitorderoffsetfiltersdirectionGet an estimate
Get one estimate by id, with its rows and amounts. Needs estimates.read.
idrequiredembedfieldList invoices
List invoices with paging. Needs invoices.read.
embedfieldlimitorderoffsetdirectionSearch invoices
Search invoices by status (draft/due/payinprogress/paid/late/cancelled), number, date, currency, owner, or related company/individual/opportunity. Use it for unpaid or late invoices. Needs invoices.read.
embedfieldlimitorderoffsetfiltersdirectionGet an invoice
Get one invoice by id, with its rows, amounts and status. Needs invoices.read.
idrequiredembedfieldList an invoice's payments
List the payments linked to one invoice. Needs invoices.read and payments.read.
limitoffsetinvoice_idrequiredList orders
List orders with paging. Needs orders.read.
embedfieldlimitorderoffsetdirectionSearch orders
Search orders by status or delivery status, or related company/individual/opportunity. Needs orders.read.
embedfieldlimitorderoffsetfiltersdirectionGet an order
Get one order by id. Needs orders.read.
idrequiredembedfieldList credit notes
List credit notes with paging. Needs credit-notes.read.
embedfieldlimitorderoffsetdirectionGet a credit note
Get one credit note by id. Needs credit-notes.read.
idrequiredembedfieldList items
List catalog items (products, services, shipping, packaging) with paging. Needs items.read.
embedfieldlimitorderoffsetdirectionSearch items
Search catalog items by name, reference or type. Needs items.read.
embedfieldlimitorderoffsetfiltersdirectionGet an item
Get one catalog item by id. Needs items.read.
idrequiredembedfieldSearch payments
Search payments by status (pending/confirmed/rejected/failed/refund) or related company/individual. Needs payments.read.
embedfieldlimitorderoffsetfiltersdirectionList tasks
List tasks with paging. Needs tasks.read.
embedfieldlimitorderoffsetdirectionSearch tasks
Search tasks by status (todo/done), owner, assignee, label, due date or related record. Needs tasks.read.
embedfieldlimitorderoffsetfiltersdirectionGet a task
Get one task by id. Needs tasks.read.
idrequiredembedfieldList task labels
List the task labels (a label id is required to create a task). Needs tasks.read.
limitoffsetSearch comments (notes)
Search comments and notes by author, date, parent comment or the company/individual/contact they are attached to. Needs comments.read.
embedfieldlimitorderoffsetfiltersdirectionList staff members
List the staff members of the account (the list may hold only yourself, depending on the Sellsy plan). Needs staffs.read.
embedfieldlimitorderoffsetdirectionCreate a company
WRITE: create a company record in Sellsy (a prospect, client or supplier). Needs companies.write. Nothing is sent to the company.
namerequirednotetyperequiredemailwebsiteowner_idreferencephone_numbermobile_numbernumber_of_employeesmain_activity_descriptionCreate an individual
WRITE: create an individual (a private person as prospect, client or supplier) in Sellsy. Needs individuals.write.
notetyperequiredemailwebsitecivilityowner_idlast_namerequiredreferencefirst_namephone_numbermobile_numberCreate a contact
WRITE: create a contact (a person) in Sellsy. It is not linked to a company by this call. Needs contacts.write.
noteemailcivilityowner_idpositionlast_namerequiredfirst_namephone_numbermobile_numberCreate an opportunity
WRITE: create a sales opportunity linked to a company, individual or contact. Needs a pipeline id and one of its step ids (see sellsy_list_opportunity_pipelines and sellsy_list_pipeline_steps). Needs opportunities.write.
namerequirednotesteprequiredamountrelatedrequireddue_dateowner_idpipelinerequiredcontact_idsprobabilityassigned_staff_idsMove an opportunity to another step
WRITE: move an existing opportunity to another step of its pipeline, or to a step of another pipeline (then pass that pipeline too). Only the step (and the pipeline) change; the name, amount, status and links stay. Get the ids from sellsy_get_opportunity, sellsy_list_opportunity_pipelines and sellsy_list_pipeline_steps. Needs opportunities.write.
idrequiredsteprequiredpipelineAdd a comment (note)
WRITE: add a comment (note) to a company, individual, contact, opportunity or document. Visible to the Sellsy staff, not sent to the customer. Needs comments.write.
related_idrequireddescriptionrequiredrelated_typerequiredmentioned_staff_idsCreate a task
WRITE: create a task, optionally attached to a record and assigned to staff. Needs a label id (see sellsy_list_task_labels) and a due date-time. Needs tasks.write.
titledue_daterequiredlabel_idrequiredowner_idpriorityis_privaterelated_iddescriptionrelated_typeassigned_staff_ids100% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
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{ "mcpServers": { "sellsy": { "url": "https://sellsy.usefulapi.io/mcp" } }}