Alpaca Trading API integration for Model Context Protocol (MCP)
Bizday is installed from its publisher's own source and answers where it runs, so this marketplace is not in the path of a single call. There is no address here to send one to, and a panel that pretended otherwise would be showing you an answer we made up. Install it and call it from your own client — the Installation tab has the entry for each one.
What it does
Cited US federal and Reserve Bank business days for agents.
Quickstart
# 1 — add it to Claude Code
claude mcp add --scope user --transport http bizday-mcp https://isitabizday.com/mcp
# 2 — ask your agent for something these tools do
# list_calendars, list_holidays, is_business_day and 5 more
Bizday costs nothing on mcprush: there is no plan to choose here, no cap to set and nothing mcprush can bill you for.
Collected from a public index. Nobody has claimed this account, so nothing here was written by its author — claim it if it is yours.
Where are you running it?
Every route below installs the same thing and ends at the same approval screen. Nothing here runs on your machine and nothing runs on ours: this server answers at its publisher’s own address, and what you install is the connection straight to it.
This is a public server: it answers at its publisher’s own address and this marketplace is not in the path. Claude Code registers it in one command; --scope user makes it available in every project. The transport below is http, as the publisher's own manifest declares it.
claude mcp add --scope user --transport http bizday-mcp https://isitabizday.com/mcpReconnect, or start a new session, and the tools appear in the model’s tool list.
One config entry pointing straight at the publisher’s own address — this marketplace is not in the path, and nothing from this listing executes on your machine.
8 tools, with what each one reads, writes and reaches shown before you agree — the same list on every route above. Read the tool surface.
Tool surface
What the model actually sees. Descriptions are diffed on every release — see version history.
Shipped calendars: id, name, source URL, Saturday and Sunday rules, coverage, last verified, and changelog. us-federal-opm is the default. us-nyse covers 2026-01-01 through 2028-12-31. us-sifma covers 2026-01-01 through 2027-12-31. us-ca covers 2026-01-01 through 2026-12-31. us-ny covers 2026-01-01 through 2027-12-31. us-nyc covers 2026-01-01 through 2027-12-31.
No parameter schema on file.
Holiday rows for one year. us-federal-opm and us-fed-banking return the eleven nationwide legal public holidays. On us-fed-banking, observed is null when the legal date is a Saturday, because Friday stays open. us-nyse returns the NYSE full-day table and accepts only 2026 through 2028. us-sifma returns the SIFMA U.S. full-close table and accepts only 2026 and 2027. us-ca returns the California sta
| Parameter | Type | Required | Notes |
|---|---|---|---|
| year | integer | yes | Calendar year, 2021 through 2100. |
| calendar | string | no | Calendar id. Omit for us-federal-opm. Unknown ids are an error. us-fed-banking keeps Reserve Banks open on the Friday before a Saturday holiday. us-nyse is NYSE full-day holidays for 2026 through 2028 |
Whether a civil date is a business day, and why. Omit calendar for us-federal-opm (US federal offices). us-fed-banking is the Federal Reserve Banks schedule: a Saturday holiday does not close the preceding Friday. us-nyse is NYSE full-day holidays for 2026 through 2028. us-sifma is SIFMA recommended U.S. fixed-income full closes for 2026 and 2027. An early close stays open. us-ca is California sta
| Parameter | Type | Required | Notes |
|---|---|---|---|
| date | string | yes | Civil date, YYYY-MM-DD. Not a timestamp. |
| calendar | string | no | Calendar id. Omit for us-federal-opm. Unknown ids are an error. us-fed-banking keeps Reserve Banks open on the Friday before a Saturday holiday. us-nyse is NYSE full-day holidays for 2026 through 2028 |
The date that is days business days after start. The start date is day 0, matching Excel WORKDAY, so days=1 always leaves the start date. days is an integer from -3660 to 3660. Omit calendar for us-federal-opm. us-fed-banking keeps Reserve Banks open on the Friday before a Saturday holiday.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| start | string | yes | Civil date, YYYY-MM-DD. Not a timestamp. |
| days | integer | yes | Business days to add. Negative counts backward. Zero returns the start date. |
| calendar | string | no | Calendar id. Omit for us-federal-opm. Unknown ids are an error. us-fed-banking keeps Reserve Banks open on the Friday before a Saturday holiday. us-nyse is NYSE full-day holidays for 2026 through 2028 |
How many business days are in the inclusive span from start through end, matching Excel NETWORKDAYS. Negative when end is earlier. The span must be 3660 days or less. Omit calendar for us-federal-opm.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| start | string | yes | Civil date, YYYY-MM-DD. Not a timestamp. |
| end | string | yes | Civil date, YYYY-MM-DD. Not a timestamp. |
| calendar | string | no | Calendar id. Omit for us-federal-opm. Unknown ids are an error. us-fed-banking keeps Reserve Banks open on the Friday before a Saturday holiday. us-nyse is NYSE full-day holidays for 2026 through 2028 |
Stay on date when it is already a business day. Otherwise move to the nearest business day in direction next or previous. This is not Excel WORKDAY, and it does not decide whether a filing is timely. Omit calendar for us-federal-opm.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| date | string | yes | Civil date, YYYY-MM-DD. Not a timestamp. |
| direction | string | yes | next walks forward. previous walks backward. |
| calendar | string | no | Calendar id. Omit for us-federal-opm. Unknown ids are an error. us-fed-banking keeps Reserve Banks open on the Friday before a Saturday holiday. us-nyse is NYSE full-day holidays for 2026 through 2028 |
Count a period stated in days under Fed. R. Civ. P. 6(a)(1). Exclude the trigger day. Count every calendar day, including intermediate Saturdays, Sundays, and legal holidays. Roll only the last day. direction is after or before. days is an integer from 1 to 3660. There is no calendar argument. Legal holidays are the Rule 6(a)(6)(A) days on the federal-office observed weekday, including Juneteenth.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| trigger | string | yes | Civil date, YYYY-MM-DD. Not a timestamp. |
| days | integer | yes | Days to count. Integer from 1 to 3660. Zero and negative values are rejected. |
| direction | string | yes | after counts forward. before counts backward. next and previous are rejected. |
Store a suspected wrong closing for later review. Requires calendar, date, claim, and source_url. The report is not applied to either calendar. The result is accepted true and applied false. claim is one line of at most 500 characters. source_url is an http or https URL with no username or password. Do not send a name or an email. This is not a calculation.
| Parameter | Type | Required | Notes |
|---|---|---|---|
| date | string | yes | Civil date, YYYY-MM-DD. Not a timestamp. |
| claim | string | yes | One line, at most 500 characters. Do not include a name or an email address. |
| source_url | string | yes | http or https URL for the source that was checked. No username or password. |
| calendar | string | yes | Calendar id. Required. Unknown ids are an error. |
- Every tool — any call limit is its publisher’s, not ours
- No card, and mcprush charges nothing for it
- Runs at its publisher’s own address — this marketplace is not in the path
- Nothing to cap, because mcprush bills nothing
What counts against your monthly calls
| Tool | Unit | Calls used | Out of the allowance |
|---|
Nothing here is billable: mcprush charges nothing to install Bizday or to call it, at any volume.
Two independent axes, because powerful and malicious are different questions. The grade is threat only. The capability level is blast radius, and it is never a penalty on the grade — it is priced as one subtract-only term in the score, where you can see it.
| Term | Level | What it prices | Points |
|---|---|---|---|
| capability-exposure | moderate | capability blast radius (moderate) — client exposure if the model is manipulated | −3 |
| coverage-honesty | manifest | inspection depth (manifest) — how much of the target the scan could see | −4 |
What the scan could actually read
A grade is only as meaningful as its coverage, so the scanner publishes its own depth before it publishes its result.
The scan read each tool’s name, description, input schema and annotations exactly as the server listed them the last time it answered us; no code was reviewed. We ask the server again about once a month, and a list that changed is graded again.
The implementation source was not read — this reflects the declared tool metadata only.
Capability — what it could do if the model were manipulated
Tags derived from each tool’s schema and the implementation, not from what the tool calls itself. moderate is the level these add up to.
| Tool | Capability tags | Why the tag was assigned |
|---|---|---|
| list_calendars | no tags | |
| list_holidays | no tags | |
| is_business_day | no tags | |
| add_business_days | no tags | |
| count_business_days | no tags | |
| roll_date | no tags | |
| frcp_6a_deadline | no tags | |
| report_discrepancy | state-write | state-write: declares readOnlyHint: false |
Toxic-flow graph
The lethal trifecta, checked as a graph rather than as a checklist: untrusted input, a sensitive source and an external sink have to meet before there is a path worth worrying about.
The public result for this release does not print the flow graph, so there is nothing to show here. That is not the same as "no paths were found": what the scan did read is above, under coverage.
Supply chain and provenance
This is the first scan of this surface here, so there is nothing yet to compare it against.
Every result on this tab comes from one deterministic pass over the published package — offline, rule by rule, and auditable line by line above. Same methodology version, same bytes, same score.
Release history
This is an address its publisher runs: which release it serves is theirs to choose, so there is nothing here to pin. The history below is for reading; the current release on file is 0.3.23.
No release note was published with this version.
One review per account, from a signed-in account that does not publish this listing. Nothing else is asked — you can say what you think before you install it. Publishers can reply once per review, and a review can be edited or deleted by whoever wrote it.
Any signed-in account that does not publish Bizday can review it, once — before installing it or after. A review from an account that has installed it is marked as one.
Nobody has reviewed this listing. The rating on the card is the mean of the reviews written here and nothing else, so there is no rating until somebody writes the first — which takes a signed-in account that does not publish it, and nothing else.