Fast GST Refund
REMOTE · FASTGSTREFUND.COM
Prepare Indian GST refund records, validate entries and generate Statement 3 and Annexure B JSON.
Available components
Last scanned (2 hours ago)
Scores higher than 54% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Finance and Payments
Recent critical change
Authorization (9 Oct 2026). See the changelog before you install this server.
How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. How we score → Why this is hard to score →
Endpoint Security60
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation check failed: no authorisation is required to call this server, and it exposes a tool marked destructive (generate_statement3). See how to fix → View diagnostics → Fail
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC is configured correctly; the domain's records validate against the full chain to the root. View diagnostics → Pass
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability44
- 0% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Fail
- AI-judged instruction clarity (good).Pass
- Context-footprint check failed: tool/resource definitions use about 1614 tokens (~134/item across 12 items; 11 tools + 1 resources), over budget; trim descriptions and params. See how to fix → Fail
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management86
- Stability check failed: schema churn in the 30 days we've observed: 0 tool removals, 2 breaking changes, 0 auth/transport breaks, 4 additions. See how to fix → Fail
Tool Coverage84
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 44% of tool parameters carry a description.Partial
- Structured output schemas are declared (100% of tools); any adoption earns full credit.Pass
Tool Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 3 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "get_refund_checklist" implies "refund" and declares readOnlyHint instead, contradicting what its own name says it does. See how to fix → Fail
- An AI judge read all 13 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a current MCP spec version (2026-07-28).Pass
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 4 Nov 26 −2
- Stability: pass → fail ▼ security
- 1 Nov 26 0
- Stability: 0.97 → pass security
- 31 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 29 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.
- 27 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.
- 25 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 73 to 77. That category is still filling its 30-day observation window: 22 days of observed history at the previous scan, 23 at this one. The score rises as the window fills, whether or not the server changes.
- 22 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 63 to 67. That category is still filling its 30-day observation window: 19 days of observed history at the previous scan, 20 at this one. The score rises as the window fills, whether or not the server changes.
- 20 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 57 to 60. That category is still filling its 30-day observation window: 17 days of observed history at the previous scan, 18 at this one. The score rises as the window fills, whether or not the server changes.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 5 Nov 2026 · Probed https://fastgstrefund.com/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=fastgstrefund.com | CN=WE1,O=Google Trust Services,C=US | 7 Sept 2026 | 6 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | ed1b32f41333d04513fa4eef922c8806 |
| SANs: fastgstrefund.com, www.fastgstrefund.com, *.www.fastgstrefund.com | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
Background: What to check on a remote MCP endpoint →
DNSSEC secure
Validation of fastgstrefund.com. — Secure
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| com. | present | 19718 | 13 | Verified |
| fastgstrefund.com. | present | 2371 | 13 | Verified |
| fastgstrefund.com. | Verified address RRset verified with the apex keys |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
| Header | Value |
|---|---|
| x-content-type-options | nosniff |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://fastgstrefund.com/mcp | Verified | 200 | |
| http (plaintext) | http://fastgstrefund.com/mcp | HTTPS enforced | 308 | https://fastgstrefund.com/mcp |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
check_receipt_allocation Check invoice and receipt allocations ~96
Checks how bank receipts are allocated to export invoices: arithmetic, duplicate allocations, missing row references, overallocated receipts and invoice balances. Takes anonymous row numbers and integer INR paise only; names, GSTINs and certificate numbers are not needed. Up to 200 invoices, 200 receipts and 1000 allocations.
| Name | Type | Req | Description |
|---|---|---|---|
| allocations | array | yes | – |
| invoices | array | yes | – |
| receipts | array | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| arithmeticValid | boolean | yes | – |
| currency | string | – | – |
| invoiceBalances | array | yes | – |
| issues | array | yes | – |
| nextStep | string | – | – |
| receiptBalances | array | yes | – |
| sources | array | – | – |
| summary | object | – | – |
| unit | string | – | – |
No examples provided.
explain_upload_error Explain a Statement 3 or Annexure B issue ~85
Returns the documented checks and correction steps for one known problem with a Statement 3 or Annexure B file. Statement 3 issues: json_generation, receipt_allocation, corrected_retry, return_mismatch. Annexure B issues: duplicate_document, gstr2b_mismatch, reversals, json_generation.
| Name | Type | Req | Description |
|---|---|---|---|
| document | string | yes | – |
| issue | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| checks | array | yes | – |
| document | string | yes | – |
| issue | string | yes | – |
| nextStep | string | yes | – |
| sources | array | – | – |
| sourcesChecked | string | – | – |
| title | string | yes | – |
No examples provided.
generate_annexure_b Create Annexure B JSON ~261
Creates the Annexure B JSON (statement of inward-supply invoices) for a GST refund of accumulated ITC (RFD-01), the file the GST portal otherwise requires from its Excel offline utility, from records that pass validate_annexure_b. Returns openUrl, a link the user opens in a browser to sign in by email, pay once per GSTIN and refund period, and download; the checked records are stored behind the link for 24 hours. With a connected account that has paid, it returns the file. The tool takes no GST portal password or OTP. ITC eligibility, reversal amounts and GSTR-2B periods come from the taxpayer's reviewed records; the tool does not infer them.
| Name | Type | Req | Description |
|---|---|---|---|
| data | object | yes | The document's fields, as its requirements tool lists them, or a JSON file from the official utility unchanged. |
| direct | boolean | – | true to have the file returned to this client. It needs the user's Fast GST Refund account to be connected; if it is not, the client is asked to sign in. Leave out unless the user asked for the file… |
| link | string | – | The openUrl from the other generate tool's result, so that one link holds both files. |
| Name | Type | Req | Description |
|---|---|---|---|
| claim | object | – | – |
| document | string | yes | – |
| documents | array | – | – |
| errors | array | – | – |
| expiresAt | string | – | – |
| file | object | – | – |
| generatorVersion | string | – | – |
| inputFormat | string | – | – |
| jsonVersion | string | – | – |
| linkNote | string | – | – |
| linkStatus | string | – | – |
| message | string | – | – |
| nextStep | string | – | – |
| openUrl | string | – | – |
| status | string | yes | – |
| summary | object | – | – |
| utilityVersion | string | – | – |
| valid | boolean | yes | – |
| warnings | array | – | – |
No examples provided.
generate_statement3 Create Statement 3 JSON ~227
Creates the Statement 3 JSON for a GST refund of accumulated ITC on exports without payment of tax (RFD-01), the file the GST portal otherwise requires from its Excel offline utility, from records that pass validate_statement3. Returns openUrl, a link the user opens in a browser to sign in by email, pay once per GSTIN and refund period, and download; the checked records are stored behind the link for 24 hours. With a connected account that has paid, it returns the file. The tool takes no GST portal password or OTP.
| Name | Type | Req | Description |
|---|---|---|---|
| data | object | yes | The document's fields, as its requirements tool lists them, or a JSON file from the official utility unchanged. |
| direct | boolean | – | true to have the file returned to this client. It needs the user's Fast GST Refund account to be connected; if it is not, the client is asked to sign in. Leave out unless the user asked for the file… |
| link | string | – | The openUrl from the other generate tool's result, so that one link holds both files. |
| Name | Type | Req | Description |
|---|---|---|---|
| claim | object | – | – |
| document | string | yes | – |
| documents | array | – | – |
| errors | array | – | – |
| expiresAt | string | – | – |
| file | object | – | – |
| generatorVersion | string | – | – |
| inputFormat | string | – | – |
| jsonVersion | string | – | – |
| linkNote | string | – | – |
| linkStatus | string | – | – |
| message | string | – | – |
| nextStep | string | – | – |
| openUrl | string | – | – |
| status | string | yes | – |
| summary | object | – | – |
| utilityVersion | string | – | – |
| valid | boolean | yes | – |
| warnings | array | – | – |
No examples provided.
get_annexure_b_requirements List the fields of Annexure B JSON ~121
Returns the fields of the Annexure B JSON (statement of inward-supply invoices) for a GST refund of accumulated ITC (RFD-01), the file the GST portal otherwise requires from its Excel offline utility, and where each value comes from: purchase documents, tax amounts, the GSTR-2B period, reviewed ITC eligibility and the eight GSTR-3B reversal totals, with the fields each supply type leaves empty. Takes no input. Use it before validate_annexure_b to learn which fields to collect.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| accepted | object | – | – |
| checks | string | – | – |
| document | string | yes | – |
| fieldRulesBySupplyType | object | – | – |
| generatorVersion | string | – | – |
| inputSchema | object | yes | – |
| jsonVersion | string | – | – |
| limits | object | – | – |
| notIncluded | string | – | – |
| references | array | – | – |
| scope | string | – | – |
| sha256 | string | – | – |
| sources | array | yes | – |
| utility | string | – | – |
| utilityVersion | string | – | – |
| workflow | array | yes | – |
No examples provided.
get_refund_checklist Get a refund preparation checklist ~69
Returns the records to gather, the checks to make, the next step and the relevant guides for one stage of a service-export GST refund claim and one preparation topic. Use it when someone asks what to prepare or check.
| Name | Type | Req | Description |
|---|---|---|---|
| need | string | yes | – |
| stage | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| checks | array | yes | – |
| createFiles | string | – | – |
| guides | array | – | – |
| need | string | yes | – |
| needLabel | string | – | – |
| nextStep | string | yes | – |
| records | array | yes | – |
| scope | string | – | – |
| stage | string | yes | – |
| stageLabel | string | – | – |
| summary | string | yes | – |
| title | string | yes | – |
No examples provided.
get_statement3_requirements List the fields of Statement 3 JSON ~95
Returns the fields of the Statement 3 JSON for a GST refund of accumulated ITC on exports without payment of tax (RFD-01), the file the GST portal otherwise requires from its Excel offline utility, and where each value comes from: export invoices and notes, bank BRC/FIRC rows, and shipping details for goods. Takes no input. Use it before validate_statement3 to learn which fields to collect.
Input schema present but exposes no named parameters.
| Name | Type | Req | Description |
|---|---|---|---|
| accepted | object | – | – |
| checks | string | – | – |
| document | string | yes | – |
| fieldRulesBySupplyType | object | – | – |
| generatorVersion | string | – | – |
| inputSchema | object | yes | – |
| jsonVersion | string | – | – |
| limits | object | – | – |
| notIncluded | string | – | – |
| references | array | – | – |
| scope | string | – | – |
| sha256 | string | – | – |
| sources | array | yes | – |
| utility | string | – | – |
| utilityVersion | string | – | – |
| workflow | array | yes | – |
No examples provided.
read_refund_guide Read a GST refund guide ~47
Returns one public guide as Markdown, with its source links and the date its sources were checked. Takes a slug from search_refund_guides.
| Name | Type | Req | Description |
|---|---|---|---|
| slug | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| checked | string | – | – |
| createFiles | string | – | – |
| description | string | – | – |
| markdown | string | yes | – |
| slug | string | yes | – |
| title | string | yes | – |
| topic | string | – | – |
| url | string | yes | – |
No examples provided.
search_refund_guides Find GST refund guidance ~59
Finds Fast GST Refund's public guides by preparation topic and returns their slugs, titles and descriptions. Takes general keywords; it does not need taxpayer identifiers or document contents.
| Name | Type | Req | Description |
|---|---|---|---|
| limit | integer | – | – |
| query | string | yes | – |
| Name | Type | Req | Description |
|---|---|---|---|
| guides | array | yes | – |
No examples provided.
validate_annexure_b Check records for Annexure B JSON ~156
Checks records for the Annexure B JSON (statement of inward-supply invoices) for a GST refund of accumulated ITC (RFD-01), the file the GST portal otherwise requires from its Excel offline utility. Applies the offline utility's own checks and returns every error and warning at once, with its row and field. Free; needs no sign-in; stores nothing. A file made by the official utility can be passed as data unchanged. ITC eligibility, reversal amounts and GSTR-2B periods come from the taxpayer's reviewed records; the tool does not infer them.
| Name | Type | Req | Description |
|---|---|---|---|
| data | object | yes | The document's fields, as its requirements tool lists them, or a JSON file from the official utility unchanged. |
| Name | Type | Req | Description |
|---|---|---|---|
| claim | object | – | – |
| document | string | yes | – |
| errors | array | yes | – |
| generatorVersion | string | – | – |
| inputFormat | string | – | – |
| jsonVersion | string | – | – |
| message | string | – | – |
| nextStep | string | – | – |
| summary | object | – | – |
| utilityVersion | string | – | – |
| valid | boolean | yes | – |
| warnings | array | yes | – |
No examples provided.
validate_statement3 Check records for Statement 3 JSON ~124
Checks records for the Statement 3 JSON for a GST refund of accumulated ITC on exports without payment of tax (RFD-01), the file the GST portal otherwise requires from its Excel offline utility. Applies the offline utility's own checks and returns every error and warning at once, with its row and field. Free; needs no sign-in; stores nothing. A file made by the official utility can be passed as data unchanged.
| Name | Type | Req | Description |
|---|---|---|---|
| data | object | yes | The document's fields, as its requirements tool lists them, or a JSON file from the official utility unchanged. |
| Name | Type | Req | Description |
|---|---|---|---|
| claim | object | – | – |
| document | string | yes | – |
| errors | array | yes | – |
| generatorVersion | string | – | – |
| inputFormat | string | – | – |
| jsonVersion | string | – | – |
| message | string | – | – |
| nextStep | string | – | – |
| summary | object | – | – |
| utilityVersion | string | – | – |
| valid | boolean | yes | – |
| warnings | array | yes | – |
No examples provided.
How do I install the Fast GST Refund MCP server?
Fast GST Refund is a hosted endpoint at https://fastgstrefund.com/mcp, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
remote · fastgstrefund.com
claude mcp add --transport http com-fastgstrefund-fast-gst-refund 'https://fastgstrefund.com/mcp'
What is the Fast GST Refund MCP server?
Fast GST Refund is an MCP server listed in the public MCP registry as com.fastgstrefund/fast-gst-refund. Prepare Indian GST refund records, validate entries and generate Statement 3 and Annexure B JSON. This page covers its hosted endpoint (https://fastgstrefund.com/mcp).
Is the Fast GST Refund MCP server safe to use?
Fast GST Refund scores 69 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.
What tools does the Fast GST Refund MCP server expose?
Fast GST Refund exposes 11 tools: get_refund_checklist, search_refund_guides, read_refund_guide, explain_upload_error, check_receipt_allocation, and 6 more. Their descriptions and schemas cost roughly 1,340 tokens of context every time the server is loaded.
Does the Fast GST Refund MCP server require authentication?
No. We connected to Fast GST Refund without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.
Is the Fast GST Refund MCP server still maintained?
Fast GST Refund is still listed as active in the MCP registry. We last reached this channel on 5 November 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.