Tool reference — `mcp_einvoicing_in`
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Tools: 4
in__build_invoice
Validate structured input against INInvoice and build a GST e-invoice payload.
invoice_data is validated against INInvoice (see that model for the
full field list — seller/buyer as InvoiceParty with a GSTIN
TaxIdentifier, lines as INInvoiceLine, document_total as
INDocumentTotalDetails). GSTIN fields are validated via
TaxIdentifier.validate_in_gstin as part of model construction
(Recipient_GSTIN’s "URP" sentinel is accepted per schema field 5.3);
a malformed GSTIN is reported as a validation error, not a built
payload.
The IRN field is never emitted — it is IRP-generated, never
supplier-populated (schema field 1.1). This tool builds the
registration request; in__qr.IRPRegistrationResponse models the
IRP’s response after a real submission (Phase B, not yet built — see
specs/README.md).
Returns a dict with:
payload: the built JSON-serializable dict (see module docstring for the wire-shape caveat)document_type: the validatedDocument_Type_Code(INV/CRN/DBN)
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
invoice_data |
object | yes |
in__get_supported_scope
Return the FORM GST INV-01 document types and supply types this package supports.
Reflects Phase A scope locked in context-library/countries/in.md
(workspace root repo): schema v1.1, all three Document_Type_Code
values (INV/CRN/DBN), offline structural validation, and QR-response
modeling (in__build_invoice, in__validate_invoice,
in__render_irp_qr_png). Live IRP submission (auth/token,
generate-IRN, cancel-IRN) is Phase B and is not implemented — it is
blocked on the NIC e-invoice API spec, which has not been staged; see
specs/README.md, “Pending specs”.
Returns:
A ScopeInfo describing current scope, for callers to check before
assuming a document type or supply type is supported.
No parameters.
in__render_irp_qr_png
Render the IRP’s raw signed-QR string as a displayable PNG.
This does not decode or interpret signed_qr_code — it is treated as an
opaque string and encoded into a QR image via
mcp_einvoicing_core.qr.generate_qr_png_base64 (core-state-check:
[REUSE: generate_qr_png_base64 from mcp-einvoicing-core]). Decoding the
JWS content itself is out of scope pending the NIC API spec — see this
module’s docstring.
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
signed_qr_code |
string | yes | The raw QR string returned by the IRP in IRPRegistrationResponse.signed_qr_code. |
in__validate_invoice
Validate a GST e-invoice against FORM GST INV-01 schema v1.1 structural rules.
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
invoice_data |
object | yes | Fields matching the INInvoice schema. |