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DEVELOPER COMMUNITY
Search first-party Q&A for IFSC, GST, HSN, SAC, and Auth on mantechstudio.in/api/v1. Public pages are official ManTech answers. New questions stay private until reviewed. Not Discord, GitHub Discussions, or a 24/7 SLA.
Maintained by ManTech Studio from recurring integration questions. Not user-generated posts.
Authentication · Official ManTech Answer
Sign in at the Developer Console (/developers), create or select an application, and issue a TEST API key. Copy the secret once. Send Authorization: Bearer on https://mantechstudio.in/api/v1. Console keys do not authenticate /external/v1. OAuth client credentials are not yet deployed. A test key is still a secret — do not put it in public frontend code or Git.
API Keys · Official ManTech Answer
Open /developers, sign in with Google or email, create an application, then create a TEST key. The plaintext secret is shown once and cannot be retrieved later. Use the mantech_test_ prefix in development only. LIVE keys belong in production server environments when issued. Rotate or revoke any key that may have leaked.
GST · Official ManTech Answer
No. POST /api/v1/gst/calculate returns exclusive or inclusive GST with a CGST/SGST or IGST split from the amount and rate you send. It is not GST filing, e-invoice, place-of-supply determination for every legal case, or GSTIN verification against GSTN. Results are not tax advice. Use a Developer Console TEST key on mantechstudio.in/api/v1.
HSN · Official ManTech Answer
No. GET /api/v1/hsn/{code} and /api/v1/hsn/search use a ManTech-curated catalog. A miss means the code is not in this dataset, not official confirmation that the code is invalid. It is not a complete CBIC schedule and not live tax law. SAC is a separate curated Chapter 99 catalog.
IFSC · Official ManTech Answer
No. GET /api/v1/ifsc/{code} uses ManTech’s imported branch dataset. It is suitable for branch lookup in TEST. It is not a real-time RBI feed and not a payments-rail status API. Dataset vintage is documented on the IFSC API page.
Rate Limits / Quotas · Official ManTech Answer
Read X-RateLimit-* and Retry-After. Default allowance is 1,000 requests per UTC calendar day per application + environment, plus a burst limiter. TEST is not unlimited. Do not tight-loop unchanged 400/401/403/404 requests. TEST and LIVE keys share the host and dataset; they do not share daily quota once LIVE is issued.
Create an application, issue a TEST API key, and inspect usage for IFSC, GST, HSN, and SAC.
Open consoleAuthentication, errors, rate limits, OpenAPI, and per-API reference for the public TEST host.
Read docsSend authenticated sample requests in the browser. Use a TEST key — never paste a live secret into the URL.
Try playgroundManTech Studio marketplace: certified ManTech TEST APIs plus planned Udyami and Evolve Energy providers.
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