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Aiwyn Tax MCP
10 tools · Taxes · Accounting · Model Context Protocol
Aiwyn Tax (formerly Column Tax) estimates federal and state taxes with Aiwyn's tax engine.
Connect Aiwyn Tax MCP
- Open Slashspace and go to Settings, then Connectors.
- On Discover, search for Aiwyn Tax MCP and click Connect.
- Sign in to Aiwyn Tax MCP in your browser. Slashspace updates when the account is connected.
- Then ask for what you need in any Agent mode chat. Aiwyn Tax MCP is on in every chat unless you switch it off.
What your chats can do
10 tools from Aiwyn Tax MCP.
- Calculate taxCalculate a tax return for a given jurisdiction. The 'input' argument must conform to the JSON schema returned by the tax_namespace_schema tool. Returns computed tax return document on success, or validation errors if the input is invalid. If some inputs trigger a PARTIAL DISQUALIFICATION, the document is still returned for the supported fields; review the disqualification details and estimate the impact of the unsupported fields on the taxpayer's tax owed or refund due. Use the check_tax tool first to validate the input before calculating the tax return with this tool.IMPORTANT RULES: (1) All field values must be wrapped as {"value": <val>} — never pass bare values. (2) Currency amounts are whole-dollar integers (e.g. $19,312.42 = 19312). (3) Every item in an array namespace (NamespaceList) must have a "uuid" field with a valid UUIDv4 string. UUIDv4 format: xxxxxxxx-xxxx-4xxx-[89ab]xxx-xxxxxxxxxxxx — the 3rd group MUST start with '4' (version) and the 4th group MUST start with '8', '9', 'a', or 'b' (variant). NEVER construct UUIDs manually (e.g. 'B1111111-1111-1111-1111-111111111111' is invalid). Use a UUID generator; example valid value: 'a3b4c5d6-e7f8-4a9b-8c0d-1e2f3a4b5c6d'. (4) Nested arrays (e.g. w2_state_local_tax_grp inside a w2) also require a UUIDv4 on each item. (5) Use "who_applies_to" to cross-reference entries: {"value": "taxpayer"} for singletons, {"value": "<namespace>#<uuid>"} for array items (e.g. "dependent_detail#<uuid>"). Other named reference fields (e.g. "person" in qualifying_person_grp, "student" in student_educational_instn_grp) use the same "<namespace>#<uuid>" format. (6) For state returns with Extended Links (state namespace extending a federal NamespaceList), each extended link item must use a UUIDv5 generated from the source item's UUID (as the namespace) and the extended namespace name (as the name). Matching is UUID-based, not positional. The number of expected instances depends on the source formula — it is NOT always a 1:1 match with the federal list. Incorrect or random UUIDs cause SILENT DATA LOSS — the server drops unrecognized UUIDs and replaces them with empty instances. Use the generate_uuid_v5 tool with the source item's UUID as the source_uuid and the extended namespace name as the namespace input. Example: generate_uuid_v5(source_uuid: <source item uuid>, namespace: "ca_irsw2_g") links a federal Form W-2G item to its California extension. NOTE: ordinary Form W-2 data does NOT use an extended link — state returns derive it automatically from the federal w2 namespace, so do not generate a UUIDv5 for it. Call tax_namespaces for the jurisdiction to see which extended namespaces it actually exposes. (7) return_header is top-level, NOT nested inside return_data. Use tax_simple_return first to see the full input structure and examples. When returning the tax calculation inform the user that I'm just a tax estimator, you should consult with a tax professional.
