Benchmark Email MCP by usefulapi
REMOTE · BENCHMARK-EMAIL.USEFULAPI.IO
Manage Benchmark Email lists and contacts, and read campaign reports: opens, clicks, bounces.
Available components
Last scanned (5 hours ago)
Scores higher than 4% of remote servers
Reachable. Last reached 5 Nov 2026.
Category Marketing and SEO
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 Security46
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- Authorisation not yet verified: we couldn't confirm whether this endpoint requires it. View diagnostics → Unverified
- HTTPS enforcement could not be verified: the plaintext port redirected somewhere other than https, so enforcement is unproven. View diagnostics → Unverified
- 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
Transport & Reachability0
- Transport check failed: declared streamable-http, but the endpoint redirected instead of responding directly. See how to fix → View diagnostics → Fail
Schema Quality & AI Usability0
- Schema not yet verified: we couldn't read the endpoint's schema, or could read only part of its tool list.Unverified
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage0
- Tool coverage not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.Unverified
Tool Safety0
- Tool safety not yet verified: we couldn't read the endpoint's tools, or could read only part of the list.Unverified
Capabilities0
- Capabilities not yet verified: we couldn't read the endpoint's capabilities.Unverified
Unverified: 5 categories
Categories scored 0 because we could not verify them: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.
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.
- 2 Nov 26 −57
- Endpoint reachability: reachable → not serving MCP ▼ security
- Tool safety: pass → unverified ▼ security
- Authorization: pass → unverified ▼ security
- Stability: 0.67 → unverified ▼ security
- Schema quality: 100 → unverified ▼ functional
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- 1 Nov 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.
- 31 Oct 26 +3
- Authorization: partial → pass ▲ security
- MCP protocol: fail → pass ▲ functional
- New prompt “check_how_a_campaign_did” functional
- New prompt “count_list_contacts_and_check_account_usage” functional
- New prompt “look_up_an_email_address_or_add_a_contact” functional
- New prompt “review_opens_clicks_bounces_and_unsubscribes” functional
- New prompt “update_or_unsubscribe_a_contact” functional
- MCP protocol version: 2025-06-18 → 2025-11-25 functional
- Server version: 1.18.0 → 1.20.0 functional
- Server version: 1.17.0 → 1.18.0 functional
- Server version: 1.16.2 → 1.17.0 functional
- 30 Oct 26 0
- Server version: 1.16.1 → 1.16.2 functional
- Server version: 1.16.0 → 1.16.1 functional
- 29 Oct 26 +1
- Server version: 1.15.0 → 1.16.0 functional
- Server version: 1.14.0 → 1.15.0 functional
- 28 Oct 26 0
- Server version: 1.12.0 → 1.14.0 functional
- 27 Oct 26 +1
- Server version: 1.11.0 → 1.12.0 functional
- 25 Oct 26 +1
- Server version: 1.10.0 → 1.11.0 functional
- Server version: 1.9.0 → 1.10.0 functional
- Server version: 1.8.3 → 1.9.0 functional
- Server version: 1.8.0 → 1.8.3 functional
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://benchmark-email.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 benchmark-email.usefulapi.io. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| io. | present | 38690 | 8 | Verified |
| usefulapi.io. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication Inconclusive
We could not reach the endpoint well enough to judge its authorisation posture.
| Result | Inconclusive |
|---|---|
| HTTP status | 302 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://benchmark-email.usefulapi.io/mcp | Redirected | 302 | https://usefulapi.io/benchmark-email/ |
| http (plaintext) | http://benchmark-email.usefulapi.io/mcp | Inconclusive | 302 | http://benchmark-email.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 →
benchmark_add_contact Add contact to a list ~180
WRITE: add one contact to a list (or update it if the email is already there, as the vendor decides). It does not send any email. Only add people who agreed to get email. POST /Contact/{list_id}/ContactDetails.
| Name | Type | Req | Description |
|---|---|---|---|
| custom_fields | object | – | Custom list columns by slot, e.g. {"Field1": "12 High St"}. Slot names come from benchmark_get_list (Field1Name ...). |
| string | yes | Email address. | |
| first_name | string | – | First name. |
| last_name | string | – | Last name. |
| list_id | string | yes | Contact list id (digits only, as returned by the list tools). |
| middle_name | string | – | Middle name. |
| permission | boolean | – | Set true only if the person has given email permission (EmailPerm 1). |
No output schema declared.
No examples provided.
benchmark_create_list Create contact list ~39
WRITE: create an empty contact list. POST /Contact/.
| Name | Type | Req | Description |
|---|---|---|---|
| description | string | – | List description. |
| name | string | yes | List name. |
No output schema declared.
No examples provided.
benchmark_get_account Get account ~44
The Benchmark Email account this token belongs to: client id, name, company, email, status, plan products, contact count and emails sent. GET /Client/ProfileDetails.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
benchmark_get_contact Get contact ~93
One contact of a list with all its fields (Field1 ... Field24 hold the custom columns). GET /Contact/{list_id}/ContactDetails/{contact_id}.
| Name | Type | Req | Description |
|---|---|---|---|
| contact_id | string | yes | Contact id (the ID of a list or search row) (digits only, as returned by the list tools). |
| list_id | string | yes | Contact list id (digits only, as returned by the list tools). |
No output schema declared.
No examples provided.
benchmark_get_email Get email (campaign) ~53
One email campaign: subject, sender, target and excluded lists, dates and settings. GET /Emails/{email_id}.
| Name | Type | Req | Description |
|---|---|---|---|
| email_id | string | yes | Email id (digits only, as returned by the list tools). |
No output schema declared.
No examples provided.
benchmark_get_email_bounces Get email bounces ~59
Which addresses bounced for an email: contact, email address, time and bounce type. GET /Emails/{email_id}/Report/Bounces.
| Name | Type | Req | Description |
|---|---|---|---|
| email_id | string | yes | Email id (digits only, as returned by the list tools). |
No output schema declared.
No examples provided.
benchmark_get_email_clicks Get email clicks ~57
Who clicked a link in an email: contact, email address and time. GET /Emails/{email_id}/Report/Clicks.
| Name | Type | Req | Description |
|---|---|---|---|
| email_id | string | yes | Email id (digits only, as returned by the list tools). |
No output schema declared.
No examples provided.
benchmark_get_email_opens Get email opens ~102
Who opened an email: contact, email address, time and device. GET /Emails/{email_id}/Report/Opens.
| Name | Type | Req | Description |
|---|---|---|---|
| email_id | string | yes | Email id (digits only, as returned by the list tools). |
| page | integer | – | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| page_size | integer | – | Results per page, 1-100 (default 25). |
No output schema declared.
No examples provided.
benchmark_get_email_report Get email report ~65
The report summary of one email: recipients, opens, clicks, bounces, unsubscribes, forwards, complaints and rates. GET /Emails/{email_id}/Report.
| Name | Type | Req | Description |
|---|---|---|---|
| email_id | string | yes | Email id (digits only, as returned by the list tools). |
No output schema declared.
No examples provided.
benchmark_get_email_unsubscribes Get email unsubscribes ~69
Who unsubscribed after an email: contact, email address, time and reason, with a count per reason. GET /Emails/{email_id}/Report/Unsubscribes.
| Name | Type | Req | Description |
|---|---|---|---|
| email_id | string | yes | Email id (digits only, as returned by the list tools). |
No output schema declared.
No examples provided.
benchmark_get_list Get contact list ~59
One contact list: name, description, active contact count and its custom field names (Field1Name ...). GET /Contact/{list_id}.
| Name | Type | Req | Description |
|---|---|---|---|
| list_id | string | yes | Contact list id (digits only, as returned by the list tools). |
No output schema declared.
No examples provided.
benchmark_get_list_fields Get contact list fields ~58
The column names of a contact list (email, firstname, lastname and the custom fields). GET /Contact/{list_id}/Fields.
| Name | Type | Req | Description |
|---|---|---|---|
| list_id | string | yes | Contact list id (digits only, as returned by the list tools). |
No output schema declared.
No examples provided.
benchmark_get_plan Get plan and usage ~37
The account's email plan, add-ons and contact usage (active, account and total contacts, percent used). GET /Client/Plan.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
benchmark_get_settings Get account settings ~45
Default sender settings: from name and email, signature, footer, time zone, language and company address. The API token in the reply is removed. GET /Client/Setting.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
benchmark_get_signup_form Get signup form ~49
One signup form with its settings and target lists. GET /SignupForm/{form_id}.
| Name | Type | Req | Description |
|---|---|---|---|
| form_id | string | yes | Signup form id (digits only, as returned by the list tools). |
No output schema declared.
No examples provided.
benchmark_get_signup_form_link Get signup form link ~50
The public link of a signup form. GET /SignupForm/{form_id}/Link.
| Name | Type | Req | Description |
|---|---|---|---|
| form_id | string | yes | Signup form id (digits only, as returned by the list tools). |
No output schema declared.
No examples provided.
benchmark_list_contacts List contacts in a list ~211
List the contacts of one list with email, name, dates and id. Filter by status (subscribed, unsubscribed, hard_bounced) or search a column. GET /Contact/{list_id}/ContactDetails.
| Name | Type | Req | Description |
|---|---|---|---|
| list_id | string | yes | Contact list id (digits only, as returned by the list tools). |
| order_by | string | – | Sort column. |
| page | integer | – | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| page_size | integer | – | Results per page, 1-100 (default 25). |
| search | string | – | Search text. |
| search_field | string | – | Column to search, e.g. email, firstname, lastname. |
| search_type | string | – | How `search` matches (default: the vendor's default). |
| sort_order | string | – | Sort order. |
| status | string | – | Only contacts with this status (subscribed = all except unsubscribed and hard bounced). |
No output schema declared.
No examples provided.
benchmark_list_email_reports List email report summaries ~108
Report summaries of sent emails: sends, opens, clicks, bounces, unsubscribes and complaints per campaign. GET /Emails/Report.
| Name | Type | Req | Description |
|---|---|---|---|
| page | integer | – | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| page_size | integer | – | Results per page, 1-100 (default 25). |
| search | string | – | Only emails whose name matches this text. |
| sort_order | string | – | Sort order. |
No output schema declared.
No examples provided.
benchmark_list_emails List emails (campaigns) ~142
List email campaigns with id, name, subject, type, status, dates and target lists. GET /Emails/.
| Name | Type | Req | Description |
|---|---|---|---|
| order_by | string | – | Sort column, e.g. date, name. |
| page | integer | – | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| page_size | integer | – | Results per page, 1-100 (default 25). |
| search | string | – | Only emails whose name matches this text. |
| sort_order | string | – | Sort order. |
| status | string | – | Status filter as the vendor spells it (e.g. Draft, Scheduled, Sent). |
No output schema declared.
No examples provided.
benchmark_list_lists List contact lists ~128
List contact lists with id, name, description, contact count and dates. Use the ids with the contact tools. GET /Contact/.
| Name | Type | Req | Description |
|---|---|---|---|
| order_by | string | – | Sort column as the vendor documents it: date, count, email or schedule. |
| page | integer | – | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| page_size | integer | – | Results per page, 1-100 (default 25). |
| search | string | – | Only lists whose name matches this text. |
| sort_order | string | – | Sort order. |
No output schema declared.
No examples provided.
benchmark_list_segments List segments ~75
List the saved segments (filtered subsets of lists) with id and name. GET /Contact/Segments.
| Name | Type | Req | Description |
|---|---|---|---|
| page | integer | – | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| page_size | integer | – | Results per page, 1-100 (default 25). |
No output schema declared.
No examples provided.
benchmark_list_signup_forms List signup forms ~109
List signup forms with id, name, date and the lists they feed. GET /SignupForm/.
| Name | Type | Req | Description |
|---|---|---|---|
| order_by | string | – | Sort column. |
| page | integer | – | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| page_size | integer | – | Results per page, 1-100 (default 25). |
| search | string | – | Only forms whose name matches this text. |
| sort_order | string | – | Sort order. |
No output schema declared.
No examples provided.
benchmark_search_contacts Search contacts by email ~57
Find an email address across all lists: one row per list it is on, with the list name, contact id and master-unsubscribe flag. GET /Contact/ContactDetails.
| Name | Type | Req | Description |
|---|---|---|---|
| string | yes | Email address to search for. |
No output schema declared.
No examples provided.
benchmark_unsubscribe_contact Unsubscribe contact ~97
WRITE: move a contact to the Do Not Contact (master unsubscribe) list, so no campaign reaches it again. The API has no undo for this. DELETE /Contact/{list_id}/MoveToDNC/{contact_id}.
| Name | Type | Req | Description |
|---|---|---|---|
| contact_id | string | yes | Contact id (digits only, as returned by the list tools). |
| list_id | string | yes | Contact list id (digits only, as returned by the list tools). |
No output schema declared.
No examples provided.
benchmark_update_contact Update contact ~160
WRITE: change fields of one contact in one list. Only the fields you pass are sent. PATCH /Contact/{list_id}/ContactDetails/{contact_id}.
| Name | Type | Req | Description |
|---|---|---|---|
| contact_id | string | yes | Contact id (digits only, as returned by the list tools). |
| custom_fields | object | – | Custom list columns by slot, e.g. {"Field1": "12 High St"}. Slot names come from benchmark_get_list (Field1Name ...). |
| string | – | Email address. | |
| first_name | string | – | First name. |
| last_name | string | – | Last name. |
| list_id | string | yes | Contact list id (digits only, as returned by the list tools). |
| middle_name | string | – | Middle name. |
No output schema declared.
No examples provided.
How do I install the Benchmark Email MCP by usefulapi server?
Benchmark Email MCP by usefulapi is a hosted endpoint at https://benchmark-email.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 · benchmark-email.usefulapi.io
claude mcp add --transport http io-usefulapi-benchmark-email 'https://benchmark-email.usefulapi.io/mcp'
What is the Benchmark Email MCP by usefulapi server?
Benchmark Email MCP by usefulapi is listed in the public MCP registry as io.usefulapi/benchmark-email. Manage Benchmark Email lists and contacts, and read campaign reports: opens, clicks, bounces. This page covers its hosted endpoint (https://benchmark-email.usefulapi.io/mcp).
Is the Benchmark Email MCP by usefulapi server safe to use?
Benchmark Email MCP by usefulapi scores 18 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 Benchmark Email MCP by usefulapi server expose?
Benchmark Email MCP by usefulapi exposes 25 tools: benchmark_get_account, benchmark_get_plan, benchmark_get_settings, benchmark_list_lists, benchmark_get_list, and 20 more. Their descriptions and schemas cost roughly 2,146 tokens of context every time the server is loaded.
Does the Benchmark Email MCP by usefulapi server require authentication?
Its publisher declares no required credentials for Benchmark Email MCP by usefulapi. We have not been able to confirm that against the live endpoint, and a server can require authorisation without declaring it here.
Is the Benchmark Email MCP by usefulapi server still maintained?
Benchmark Email MCP by usefulapi 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.