io.usefulapi/dub
REMOTE · DUB.USEFULAPI.IO · SCANNED OCT 4
Short links with click, lead and sale analytics, customers, tags and the partner programme.
Available components
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 Security89
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation is enforced on tool calls, advertised via RFC 9728 protected-resource metadata. Discovery is public, which costs nothing: no tool can be invoked without a token. View diagnostics → Pass
- 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 check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
- The authorisation server offers only Dynamic Client Registration (RFC 7591), which MCP 2026-07-28 deprecated in favour of Client ID Metadata Documents. View diagnostics → Partial
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability77
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 2026 tokens (~92/item across 22 items; 22 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management13
- Stability observed for 4 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- All 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation.Pass
- An AI judge read all 22 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities60
- Spec-recency check failed: implements MCP spec 2025-06-18; the latest is 2026-07-28. See how to fix → Fail
How do I install the io.usefulapi/dub MCP server?
io.usefulapi/dub is a hosted endpoint at https://dub.usefulapi.io/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 · dub.usefulapi.io
claude mcp add --transport http io-usefulapi-dub 'https://dub.usefulapi.io/mcp'
{
"mcpServers": {
"io-usefulapi-dub": {
"url": "https://dub.usefulapi.io/mcp"
}
}
} {
"servers": {
"io-usefulapi-dub": {
"type": "http",
"url": "https://dub.usefulapi.io/mcp"
}
}
} [mcp_servers.io-usefulapi-dub] url = "https://dub.usefulapi.io/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"io-usefulapi-dub": {
"type": "remote",
"url": "https://dub.usefulapi.io/mcp",
"enabled": true
}
}
} openclaw mcp add io-usefulapi-dub --url 'https://dub.usefulapi.io/mcp' --transport streamable-http
mcp_servers:
io-usefulapi-dub:
url: "https://dub.usefulapi.io/mcp" {
"McpServers": {
"io-usefulapi-dub": {
"Transport": "http",
"Url": "https://dub.usefulapi.io/mcp"
}
}
} assistant mcp add io-usefulapi-dub -t streamable-http -u 'https://dub.usefulapi.io/mcp'
{
"mcpServers": {
"io-usefulapi-dub": {
"type": "http",
"url": "https://dub.usefulapi.io/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
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 Oct 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 10 to 13. That category is still filling its 30-day observation window: 3 days of observed history at the previous scan, 4 at this one. The score rises as the window fills, whether or not the server changes.
- 2 Oct 26 +1
- Server version: 1.3.0 → 1.5.1 functional
- 1 Oct 26 +5
- HTTPS: unverified → pass ▲ security
- Stability: unverified → 0.03 ▲ functional
- Server version: 1.0.0 → 1.3.0 functional
- 30 Sept 26 +53
- Authorization: unverified → pass ▲ security
- Injection markers: unverified → pass ▲ security
- Transport: fail → pass ▲ security
- First check of Judged manipulation: pass security
- First check of Authorization: partial security
- MCP protocol: unverified → fail ▼ functional
- Tool coverage: unverified → 100 ▲ functional
- First check of Schema quality: fail functional
- First check of Destructive annotations: 100 functional
- First check of Schema quality: pass functional
- First check of Schema quality: good functional
- First check of Tool coverage: 100 functional
- 29 Sept 26 18
First indexed and scored.
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 4 Oct 2026 · Probed https://dub.usefulapi.io/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=usefulapi.io | CN=WE1,O=Google Trust Services,C=US | 13 Sept 2026 | 12 Dec 2026 | ECDSA 256 | ECDSA-SHA256 | d9be3287b0fde9630e825ba1f79bff3f |
| SANs: usefulapi.io, *.usefulapi.io | ||||||
| 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 insecure
Validation of dub.usefulapi.io. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| io. | present | 57355 | 8 | Verified |
| usefulapi.io. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication Enforced and verified
The endpoint asked for a token and published valid RFC 9728 metadata describing how to get one.
| Result | Enforced and verified |
|---|---|
| Enforced | On tool calls |
| HTTP status | 200 |
WWW-Authenticate challenge Bearer realm="OAuth", resource_metadata="https://dub.usefulapi.io/.well-known/oauth-protected-resource/mcp"
Bearer realm="OAuth", resource_metadata="https://dub.usefulapi.io/.well-known/oauth-protected-resource/mcp"Protected resource metadata
| Document | https://dub.usefulapi.io/.well-known/oauth-protected-resource/mcp |
|---|---|
| Retrieved | Yes |
| Resource | https://dub.usefulapi.io/mcp |
| Authorisation server | https://dub.usefulapi.io |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://dub.usefulapi.io/mcp | Verified | 200 | |
| http (plaintext) | http://dub.usefulapi.io/mcp | HTTPS enforced | 301 | https://dub.usefulapi.io/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 →
dub_approve_partner_application Approve a partner application ~66
Approve an application to join the partner programme. The partner gains links and starts earning commission. Dub: POST /partners/applications/approve.
| Name | Type | Req | Description |
|---|---|---|---|
| applicationId | string | yes | The application to approve. |
| groupId | string | – | Place the partner in this group. |
No output schema declared.
No examples provided.
dub_count_links Count short links ~91
Count links matching a filter, optionally grouped by domain, tag or folder. Cheaper than listing when you only need totals. Dub: GET /links/count.
| Name | Type | Req | Description |
|---|---|---|---|
| domain | string | – | Only links on this short domain. |
| folderId | string | – | Only links in this folder. |
| groupBy | string | – | Return counts grouped by this dimension. |
| search | string | – | Free-text search. |
No output schema declared.
No examples provided.
dub_create_folder Create a folder ~58
Create a folder for grouping links. Dub: POST /folders.
| Name | Type | Req | Description |
|---|---|---|---|
| accessLevel | string | – | Default workspace access to the folder. |
| description | string | – | What the folder is for. |
| name | string | yes | The folder name. |
No output schema declared.
No examples provided.
dub_create_link Create a short link ~150
Create a short link. Omit `key` to let Dub generate one. Dub: POST /links.
| Name | Type | Req | Description |
|---|---|---|---|
| comments | string | – | An internal note. |
| description | string | – | Custom link preview description. |
| domain | string | – | Short domain to create it on. Defaults to the workspace default. |
| externalId | string | – | Your own id for this link. |
| folderId | string | – | Folder to file it under. |
| key | string | – | The short key. Omit for a random one. |
| tagNames | array | – | Tags to attach, by name. |
| title | string | – | Custom link preview title. |
| url | string | yes | The destination URL. |
No output schema declared.
No examples provided.
dub_create_tag Create a tag ~44
Create a tag for organising links. Dub: POST /tags.
| Name | Type | Req | Description |
|---|---|---|---|
| color | string | – | Tag colour in the dashboard. |
| name | string | yes | The tag name. |
No output schema declared.
No examples provided.
dub_delete_link Delete a short link ~47
Delete a short link. The URL stops resolving immediately and its analytics go with it. Dub: DELETE /links/{linkId}.
| Name | Type | Req | Description |
|---|---|---|---|
| linkId | string | yes | The link to delete. |
No output schema declared.
No examples provided.
dub_get_analytics Get analytics ~214
Get aggregated click, lead and sale analytics, grouped by a dimension such as country, device, referer or top links. The main reporting read. Dub: GET /analytics.
| Name | Type | Req | Description |
|---|---|---|---|
| country | string | – | Filter to one country code. |
| device | string | – | Filter to one device type. |
| domain | string | – | Only links on this domain. |
| end | string | – | ISO-8601 end of an absolute range. |
| event | string | – | Which event type to report. Defaults to clicks. |
| groupBy | string | – | Dimension to group by, e.g. count, timeseries, top_links, countries, cities, devices, browsers, os, referers, utm_sources. |
| interval | string | – | Relative time window. Use start/end instead for an absolute range. |
| key | string | – | The short key, used with domain. |
| linkId | string | – | Only this link. |
| start | string | – | ISO-8601 start of an absolute range. |
No output schema declared.
No examples provided.
dub_get_customer Get one customer ~37
Fetch a single customer with their attribution. Dub: GET /customers/{id}.
| Name | Type | Req | Description |
|---|---|---|---|
| customer_id | string | yes | The customer's Dub id. |
No output schema declared.
No examples provided.
dub_get_link Get one short link ~89
Fetch a single link by its id, its external id, or its domain plus key. Dub: GET /links/info.
| Name | Type | Req | Description |
|---|---|---|---|
| domain | string | – | The short domain, used with key. |
| externalId | string | – | Your own id for the link. |
| key | string | – | The short key, used with domain. |
| linkId | string | – | The link's Dub id. |
No output schema declared.
No examples provided.
dub_get_partner_analytics Get partner analytics ~122
Get analytics for the partner programme — clicks, leads, sales and revenue per partner. Dub: GET /partners/analytics.
| Name | Type | Req | Description |
|---|---|---|---|
| end | string | – | ISO-8601 end of an absolute range. |
| groupBy | string | – | Dimension to group by, e.g. count, timeseries, top_partners. |
| interval | string | – | Relative time window. Use start/end instead for an absolute range. |
| partnerId | string | – | Only this partner. |
| start | string | – | ISO-8601 start of an absolute range. |
No output schema declared.
No examples provided.
dub_list_commissions List commissions ~136
List partner commissions, by partner, status, customer or time window. Dub: GET /commissions.
| Name | Type | Req | Description |
|---|---|---|---|
| customerId | string | – | Only commissions from this customer. |
| interval | string | – | Relative time window. Use start/end instead for an absolute range. |
| page | integer | – | 1-based page number. |
| pageSize | integer | – | Page size, 1-100. |
| partnerId | string | – | Only this partner's commissions. |
| status | string | – | Only commissions in this state. |
| type | string | – | Only commissions of this type, e.g. sale, lead, click. |
No output schema declared.
No examples provided.
dub_list_customers List customers ~111
List the customers Dub has attributed to links, by email, external id or link. Dub: GET /customers.
| Name | Type | Req | Description |
|---|---|---|---|
| string | – | Only the customer with this email. | |
| externalId | string | – | Your own id for the customer. |
| linkId | string | – | Only customers attributed to this link. |
| page | integer | – | 1-based page number. |
| pageSize | integer | – | Page size, 1-100. |
| search | string | – | Free-text search. |
No output schema declared.
No examples provided.
dub_list_domains List domains ~71
List the short domains configured on the workspace. Dub: GET /domains.
| Name | Type | Req | Description |
|---|---|---|---|
| archived | boolean | – | Include archived domains. |
| page | integer | – | 1-based page number. |
| pageSize | integer | – | Page size, 1-100. |
| search | string | – | Free-text search. |
No output schema declared.
No examples provided.
dub_list_events List raw events ~149
List individual click, lead and sale events rather than aggregates — the row-level detail behind the analytics. Dub: GET /events.
| Name | Type | Req | Description |
|---|---|---|---|
| customerId | string | – | Only this customer's events. |
| end | string | – | ISO-8601 end of an absolute range. |
| event | string | – | Which event type to list. |
| interval | string | – | Relative time window. Use start/end instead for an absolute range. |
| limit | integer | – | Page size, 1-100. |
| linkId | string | – | Only this link's events. |
| page | integer | – | 1-based page number. |
| start | string | – | ISO-8601 start of an absolute range. |
No output schema declared.
No examples provided.
dub_list_folders List folders ~64
List link folders and their access levels. Dub: GET /folders.
| Name | Type | Req | Description |
|---|---|---|---|
| page | integer | – | 1-based page number. |
| pageSize | integer | – | Page size, 1-100. |
| search | string | – | Free-text search over folder names. |
No output schema declared.
No examples provided.
dub_list_links List short links ~126
List short links, filtered by domain, tag, folder or a text search. Dub: GET /links.
| Name | Type | Req | Description |
|---|---|---|---|
| domain | string | – | Only links on this short domain. |
| folderId | string | – | Only links in this folder. |
| page | integer | – | 1-based page number. |
| pageSize | integer | – | Page size, 1-100. |
| search | string | – | Free-text search over the key, URL and title. |
| showArchived | boolean | – | Include archived links. |
| tagNames | array | – | Only links carrying these tag names. |
No output schema declared.
No examples provided.
dub_list_partner_applications List partner applications ~55
List pending applications to join the partner programme. Dub: GET /partners/applications.
| Name | Type | Req | Description |
|---|---|---|---|
| page | integer | – | 1-based page number. |
| pageSize | integer | – | Page size, 1-100. |
No output schema declared.
No examples provided.
dub_list_partners List partners ~104
List the partners (affiliates) in the programme, by status, country or email. Dub: GET /partners.
| Name | Type | Req | Description |
|---|---|---|---|
| string | – | Only the partner with this email. | |
| page | integer | – | 1-based page number. |
| pageSize | integer | – | Page size, 1-100. |
| search | string | – | Free-text search. |
| status | string | – | Only partners in this state, e.g. approved, pending. |
No output schema declared.
No examples provided.
dub_list_payouts List payouts ~78
List partner payouts and their status. Dub: GET /payouts.
| Name | Type | Req | Description |
|---|---|---|---|
| page | integer | – | 1-based page number. |
| pageSize | integer | – | Page size, 1-100. |
| partnerId | string | – | Only this partner's payouts. |
| status | string | – | Only payouts in this state. |
No output schema declared.
No examples provided.
dub_list_tags List tags ~63
List the tags available for organising links. Dub: GET /tags.
| Name | Type | Req | Description |
|---|---|---|---|
| page | integer | – | 1-based page number. |
| pageSize | integer | – | Page size, 1-100. |
| search | string | – | Free-text search over tag names. |
No output schema declared.
No examples provided.
dub_reject_partner_application Reject a partner application ~42
Reject an application to join the partner programme. Dub: POST /partners/applications/reject.
| Name | Type | Req | Description |
|---|---|---|---|
| applicationId | string | yes | The application to reject. |
No output schema declared.
No examples provided.
dub_update_link Update a short link ~109
Change a link's destination, key, tags or archived state. Dub: PATCH /links/{linkId}.
| Name | Type | Req | Description |
|---|---|---|---|
| archived | boolean | – | Archive or unarchive the link. |
| comments | string | – | New internal note. |
| key | string | – | New short key. |
| linkId | string | yes | The link to update. |
| tagNames | array | – | Replace the link's tags. |
| title | string | – | New preview title. |
| url | string | – | New destination URL. |
No output schema declared.
No examples provided.
What is the io.usefulapi/dub MCP server?
io.usefulapi/dub is an MCP server listed in the public MCP registry as io.usefulapi/dub. Short links with click, lead and sale analytics, customers, tags and the partner programme. This page covers its hosted endpoint (https://dub.usefulapi.io/mcp).
Is the io.usefulapi/dub MCP server safe to use?
io.usefulapi/dub scores 78 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 io.usefulapi/dub MCP server expose?
io.usefulapi/dub exposes 22 tools: dub_list_links, dub_get_link, dub_count_links, dub_get_analytics, dub_list_events, and 17 more. Their descriptions and schemas cost roughly 2,026 tokens of context every time the server is loaded.
Does the io.usefulapi/dub MCP server require authentication?
Yes. io.usefulapi/dub asked us for credentials when we connected, so you will need to authorise it in your MCP client before it can do anything.
Is the io.usefulapi/dub MCP server still maintained?
io.usefulapi/dub is still listed as active in the MCP registry. We last reached this channel on 4 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.