ReferralHero MCP by usefulapi
REMOTE · REFERRALHERO.USEFULAPI.IO
Read ReferralHero campaigns, subscribers, referrals and rewards; add subscribers and points.
Available components
Last scanned (3 hours ago)
Scores higher than 46% of remote servers
Reachable. Last reached 25 Oct 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 Security78
- 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 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
- 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 & 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 Usability79
- 100% of prompts and resources have a non-trivial description (not blank, and not just the item's name).Pass
- AI-judged instruction clarity (excellent).Pass
- Context-footprint check failed: tool/resource definitions use about 4824 tokens (~172/item across 28 items; 28 tools + 0 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 Management3
- Stability observed for 1 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 29 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
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.
- 25 Oct 26 0
- Stability: unverified → 0.03 ▲ functional
- Server version: 1.0.0 → 1.0.3 functional
- 24 Oct 26 62
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 25 Oct 2026 · Probed https://referralhero.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 referralhero.usefulapi.io. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| io. | present | 38690, 57355 | 8, 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 | 302 |
WWW-Authenticate challenge Bearer realm="OAuth", resource_metadata="https://referralhero.usefulapi.io/.well-known/oauth-protected-resource/mcp"
Bearer realm="OAuth", resource_metadata="https://referralhero.usefulapi.io/.well-known/oauth-protected-resource/mcp" Protected resource metadata
| Document | https://referralhero.usefulapi.io/.well-known/oauth-protected-resource/mcp |
|---|---|
| Retrieved | Yes |
| Resource | https://referralhero.usefulapi.io/mcp |
| Authorisation server | https://referralhero.usefulapi.io |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://referralhero.usefulapi.io/mcp | Redirected | 302 | https://usefulapi.io/referralhero/ |
| http (plaintext) | http://referralhero.usefulapi.io/mcp | Inconclusive | 302 | http://referralhero.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 →
referralhero_add_coupons Add coupons to a group ~95
WRITE: add coupon codes to an existing coupon group. It only adds codes. POST /lists/{uuid}/coupons.
| Name | Type | Req | Description |
|---|---|---|---|
| coupon_group_id | string | yes | Coupon group id (see referralhero_list_coupon_groups). |
| coupons | array | yes | Coupon codes to add. |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_add_points Add points to a subscriber ~207
WRITE: add points to an existing subscriber (not idempotent: each call adds again). May unlock point-based rewards. The subscriber is identified by the campaign's unique identifier. POST /lists/{uuid}/subscribers/add_points.
| Name | Type | Req | Description |
|---|---|---|---|
| confirm | boolean | yes | Must be true: the user has approved this change. It can unlock rewards and make ReferralHero email or text the subscriber or referrer (automations). |
| crypto_wallet_address | string | – | Wallet address (when it is the unique identifier). |
| string | – | Subscriber email (when email is the campaign's unique identifier). | |
| other_identifier_value | string | – | Custom identifier value (when a custom id is the unique identifier). |
| phone_number | string | – | Subscriber phone number (when phone is the unique identifier). |
| points | integer | yes | Points to add. |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_add_subscriber Add subscriber ~499
WRITE: add a subscriber (or a referred person) to a campaign. Give the campaign's unique identifier (email, phone, wallet or custom id). By default ReferralHero sends the subscriber a confirmation (double opt-in) email and any welcome automation of the campaign: set double_optin=false to suppress the confirmation email. Set referrer (a referral code or the referrer's email) to credit a referral. POST /lists/{uuid}/subscribers.
| Name | Type | Req | Description |
|---|---|---|---|
| advocate_name | string | – | Name of the advocate. |
| confirm | boolean | yes | Must be true: the user has approved this change. It can unlock rewards and make ReferralHero email or text the subscriber or referrer (automations). |
| conversion_category | string | – | Subscriber type for reports and segments. |
| conversion_value | number | – | Monetary value of the referral. |
| crypto_wallet_address | string | – | Wallet address (when it is the unique identifier). |
| device | string | – | Device used to sign up, for analytics. |
| domain | string | – | URL used for the subscriber's referral link. |
| double_optin | boolean | – | false = do not send the confirmation email. Default: the campaign's setting (usually sends it). |
| string | – | Subscriber email (when email is the campaign's unique identifier). | |
| extra_field | string | – | Extra field value. |
| extra_field_2 | string | – | Extra field 2 value. |
| name | string | – | Subscriber name. |
| other_identifier_value | string | – | Custom identifier value (when a custom id is the unique identifier). |
| phone_number | string | – | Subscriber phone number (when phone is the unique identifier). |
| points | integer | – | Starting points (contest campaigns only). |
| referrer | string | – | Referral code or email of the referrer to credit. |
| self_reported_source | string | – | Where the subscriber says they heard about the campaign. |
| source | string | – | Source, for analytics. |
| status | string | – | custom_event_pending = set the referral status to pending (multi-step goals). |
| stripe_customer_id | string | – | Stripe customer id to link. |
| tags | array | – | Tags to assign. |
| transaction_id | string | – | Unique id of the purchase this referral came from. |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_confirm_referral Confirm a referral ~268
WRITE: confirm a verified referral when its third conversion event happens (campaigns whose goal tracks three events; otherwise ReferralHero returns an error). Confirming can unlock the referrer's rewards and send reward emails. Identify the referral by subscriber_id, or by the campaign's unique identifier. POST /lists/{uuid}/subscribers/{id}/confirm or /subscribers/confirm.
| Name | Type | Req | Description |
|---|---|---|---|
| confirm | boolean | yes | Must be true: the user has approved this change. It can unlock rewards and make ReferralHero email or text the subscriber or referrer (automations). |
| conversion_value | number | – | Referral conversion value. |
| crypto_wallet_address | string | – | Wallet address (when it is the unique identifier). |
| string | – | Subscriber email (when email is the campaign's unique identifier). | |
| other_identifier_value | string | – | Custom identifier value (when a custom id is the unique identifier). |
| phone_number | string | – | Subscriber phone number (when phone is the unique identifier). |
| subscriber_id | string | – | Subscriber id, e.g. sub_2bad325a25d7 (the id field of a subscriber). |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_create_campaign Create campaign ~66
WRITE: create a new ReferralHero campaign (list) with a name and a default referral URL. It adds a campaign and changes nothing existing. POST /lists.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | Campaign name. |
| website | string | yes | Default referral URL (https://...). |
No output schema declared.
No examples provided.
referralhero_create_coupon_group Create coupon group ~110
WRITE: create a coupon group for a campaign, optionally with its first coupon codes. It only adds a group. POST /lists/{uuid}/coupon_groups.
| Name | Type | Req | Description |
|---|---|---|---|
| active | boolean | – | Whether the group is active (default true). |
| coupons | array | – | Coupon codes to put in the group. |
| name | string | yes | Coupon group name. |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_delete_subscriber Delete subscriber ~123
WRITE, DESTRUCTIVE: permanently delete a subscriber from a campaign, with their referral standing. This cannot be undone. DELETE /lists/{uuid}/subscribers/{id}.
| Name | Type | Req | Description |
|---|---|---|---|
| confirm | boolean | yes | Must be true: the user has approved permanently deleting this subscriber. |
| subscriber_id | string | yes | Subscriber id, e.g. sub_2bad325a25d7 (the id field of a subscriber). |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_get_coupon_group Get coupon group ~84
One coupon group with all its coupons (code, available, sent_at). GET /lists/{uuid}/coupon_groups/{id}.
| Name | Type | Req | Description |
|---|---|---|---|
| coupon_group_id | string | yes | Coupon group id (see referralhero_list_coupon_groups). |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_get_leaderboard Get campaign leaderboard ~92
The leaderboard of a campaign: its top subscribers (10 to 100) with referral counts, points and position. GET /lists/{uuid}/leaderboard.
| Name | Type | Req | Description |
|---|---|---|---|
| count | integer | – | How many top subscribers, 10-100 (default 10). |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_get_subscriber Get subscriber ~115
One subscriber by id: contact data, referral code and link, points, position, referrals by level, status, fraud risk level, tags. Only verified subscribers are found. GET /lists/{uuid}/subscribers/{id}.
| Name | Type | Req | Description |
|---|---|---|---|
| subscriber_id | string | yes | Subscriber id, e.g. sub_2bad325a25d7 (the id field of a subscriber). |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_get_subscriber_by_email Find subscriber by email ~80
Find one subscriber of a campaign by email. Only verified subscribers are found. GET /lists/{uuid}/subscribers/retrieve_by_email.
| Name | Type | Req | Description |
|---|---|---|---|
| string | yes | The subscriber's email. | |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_get_subscriber_by_referral_code Find subscriber by referral code ~104
Find the subscriber who owns a referral code (the mwr value in a referral link). Only verified subscribers are found. GET /lists/{uuid}/subscribers/retrieve_by_mwr.
| Name | Type | Req | Description |
|---|---|---|---|
| referral_code | string | yes | The referrer's referral code (the mwr parameter of a referral link). |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_list_campaign_rewards List campaign rewards ~86
The rewards configured for a campaign (title, description, referrals needed to win each). This is the reward setup, not who earned what: see referralhero_list_unlocked_rewards for that. GET /lists/{uuid}/bonuses.
| Name | Type | Req | Description |
|---|---|---|---|
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_list_campaigns List campaigns ~77
List the active ReferralHero campaigns (lists) in the account: uuid, name, subscriber count and creation time. The uuid is needed by every other tool. 10 per page. GET /lists.
| Name | Type | Req | Description |
|---|---|---|---|
| page | integer | – | Page number, from 1 (default 1). Pass the previous reply's next_page. |
No output schema declared.
No examples provided.
referralhero_list_coupon_groups List coupon groups ~95
Coupon groups of a campaign (id, name, active flag, coupons with availability), 50 per page. GET /lists/{uuid}/coupon_groups.
| Name | Type | Req | Description |
|---|---|---|---|
| page | integer | – | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_list_referrals List a subscriber's referrals ~206
The people a subscriber referred, 50 per page. scope: all (pending, unconfirmed and confirmed, default), level_1_confirmed, level_2_confirmed, level_3_confirmed (confirmed only, by referral level), level_2_all or level_3_all (every status at that level). GET /lists/{uuid}/subscribers/{id}/{referred|level_N_referrals|level_N_all_referrals}.
| Name | Type | Req | Description |
|---|---|---|---|
| page | integer | – | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| scope | string | – | Which referrals (default all). |
| sort_by | string | – | Sort order. |
| subscriber_id | string | yes | Subscriber id, e.g. sub_2bad325a25d7 (the id field of a subscriber). |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_list_subscriber_rewards List a subscriber's rewards ~147
Rewards one subscriber has unlocked, with status, value and coupon code. The reward id is what referralhero_update_reward_status needs. GET /lists/{uuid}/subscribers/{id}/rewards.
| Name | Type | Req | Description |
|---|---|---|---|
| page | integer | – | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| status | string | – | Only rewards in this status. |
| subscriber_id | string | yes | Subscriber id, e.g. sub_2bad325a25d7 (the id field of a subscriber). |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_list_subscribers List subscribers ~192
List the subscribers of a campaign, 50 per page, with referral code, referral link, points, position, people referred, status and referrer. Sort and filter by the extra fields. GET /lists/{uuid}/subscribers.
| Name | Type | Req | Description |
|---|---|---|---|
| extra_field | string | – | Only subscribers whose extra field has this value. |
| extra_field_2 | string | – | Only subscribers whose extra field 2 has this value. |
| option_field | string | – | Only subscribers whose option field has this value. |
| page | integer | – | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| sort_by | string | – | Sort order. |
| stripe_customer_id | string | – | Only the subscriber linked to this Stripe customer id. |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_list_unlocked_rewards List earned rewards (campaign-wide) ~153
Rewards unlocked by subscribers across a whole campaign: reward name, status (sent, resent, canceled, pending, flagged), value, subscriber email and id, coupon code, transaction. Filter by status to find rewards still to pay out. GET /lists/{uuid}/rewards.
| Name | Type | Req | Description |
|---|---|---|---|
| page | integer | – | Page number, from 1 (default 1). Pass the previous reply's next_page. |
| per_page | integer | – | Results per page, 1-50 (default 10). |
| status | string | – | Only rewards in this status. |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_promote_subscriber Promote subscriber (winner) ~153
WRITE: promote a subscriber to the campaign's winners list (contests and giveaways). Only verified subscribers can be promoted; an already promoted subscriber returns an error. POST /lists/{uuid}/subscribers/{id}/promote.
| Name | Type | Req | Description |
|---|---|---|---|
| confirm | boolean | yes | Must be true: the user has approved this change. It can unlock rewards and make ReferralHero email or text the subscriber or referrer (automations). |
| subscriber_id | string | yes | Subscriber id, e.g. sub_2bad325a25d7 (the id field of a subscriber). |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_qualify_referral Mark referral qualified ~140
WRITE: mark a referral as qualified, so it counts toward the referrer's rewards. POST /lists/{uuid}/subscribers/{id}/qualify.
| Name | Type | Req | Description |
|---|---|---|---|
| confirm | boolean | yes | Must be true: the user has approved this change. It can unlock rewards and make ReferralHero email or text the subscriber or referrer (automations). |
| subscriber_id | string | yes | Subscriber id, e.g. sub_2bad325a25d7 (the id field of a subscriber). |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_search_subscribers_by_name Search subscribers by name ~73
Search subscribers by name across all campaigns of the account, 50 per page. GET /subscribers/search_by_name.
| Name | Type | Req | Description |
|---|---|---|---|
| name | string | yes | Name to search for. |
| page | integer | – | Page number, from 1 (default 1). Pass the previous reply's next_page. |
No output schema declared.
No examples provided.
referralhero_track_conversion_event Track a referral conversion event ~306
WRITE: report a conversion event for a referral (campaigns whose goal tracks two or three events). Updates the referral from pending to confirmed (two events) or unconfirmed (three). If the referral is unknown but a referrer is given, the referral is created. May unlock rewards. POST /lists/{uuid}/subscribers/track_referral_conversion_event.
| Name | Type | Req | Description |
|---|---|---|---|
| confirm | boolean | yes | Must be true: the user has approved this change. It can unlock rewards and make ReferralHero email or text the subscriber or referrer (automations). |
| conversion_value | number | – | Referral conversion value. |
| crypto_wallet_address | string | – | Wallet address (when it is the unique identifier). |
| string | – | Subscriber email (when email is the campaign's unique identifier). | |
| other_identifier_value | string | – | Custom identifier value (when a custom id is the unique identifier). |
| phone_number | string | – | Subscriber phone number (when phone is the unique identifier). |
| product_id | string | – | Product id (for product-based rewards). |
| referrer | string | – | Unique identifier of the referrer (needed to create a missing referral). |
| stripe_customer_id | string | – | Stripe customer id. |
| tags | array | – | Tags to assign. |
| transaction_id | string | – | Transaction id for the event. |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_track_transaction Track a transaction ~275
WRITE: record a purchase/transaction for a subscriber (amount required) so revenue-based rewards and reports count it (not idempotent unless a transaction_id is reused). The subscriber is identified by the campaign's unique identifier. POST /lists/{uuid}/subscribers/add_transactions.
| Name | Type | Req | Description |
|---|---|---|---|
| amount | number | yes | Amount of the transaction. |
| confirm | boolean | yes | Must be true: the user has approved this change. It can unlock rewards and make ReferralHero email or text the subscriber or referrer (automations). |
| crypto_wallet_address | string | – | Wallet address (when it is the unique identifier). |
| string | – | Subscriber email (when email is the campaign's unique identifier). | |
| lifetime_spend | number | – | The subscriber's total lifetime spend. |
| other_identifier_value | string | – | Custom identifier value (when a custom id is the unique identifier). |
| phone_number | string | – | Subscriber phone number (when phone is the unique identifier). |
| product_id | string | – | Product id (for product-based rewards). |
| reward_value | number | – | A reward value to attach to the transaction. |
| transaction_id | string | – | Your unique transaction id. |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_unlock_promoted_reward Trigger a manual reward ~157
WRITE: unlock a promoted-winner or one-off reward for a subscriber. This delivers the reward and may email the subscriber and use coupon codes. POST /lists/{uuid}/subscribers/{id}/unlock_promoted_reward.
| Name | Type | Req | Description |
|---|---|---|---|
| confirm | boolean | yes | Must be true: the user has approved delivering this reward to the subscriber now. |
| reward_id | string | yes | Id of the promotion reward (see referralhero_list_campaign_rewards). |
| subscriber_id | string | yes | Subscriber id, e.g. sub_2bad325a25d7 (the id field of a subscriber). |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_unqualify_referral Mark referral unqualified ~151
WRITE: mark a referral as unqualified (for example fraud or a refund), so it no longer counts toward the referrer's rewards. POST /lists/{uuid}/subscribers/{id}/unqualify.
| Name | Type | Req | Description |
|---|---|---|---|
| confirm | boolean | yes | Must be true: the user has approved this change. It can unlock rewards and make ReferralHero email or text the subscriber or referrer (automations). |
| subscriber_id | string | yes | Subscriber id, e.g. sub_2bad325a25d7 (the id field of a subscriber). |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_update_reward_status Update reward status ~155
WRITE: set the status of an unlocked reward to sent, resent or canceled. Marking sent/resent can trigger the reward delivery email to the subscriber. Get the reward_id from referralhero_list_subscriber_rewards or referralhero_list_unlocked_rewards. POST /lists/{uuid}/subscribers/update_reward_status.
| Name | Type | Req | Description |
|---|---|---|---|
| confirm | boolean | yes | Must be true: the user has approved this reward status change (sent/resent can email the reward; canceled withdraws it). |
| reward_id | string | yes | Id of the unlocked reward. |
| status | string | yes | New status. |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
referralhero_update_subscriber Update subscriber ~355
WRITE: change fields of a subscriber (overwrites the given fields): name, contact identifiers, extra fields, points (contest campaigns), tags, address, referral status (qualified/unqualified). Only fields you pass change. Only verified subscribers can be updated. POST /lists/{uuid}/subscribers/{id}.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | – | Address. |
| city | string | – | City. |
| confirm | boolean | yes | Must be true: the user has approved this change. It can unlock rewards and make ReferralHero email or text the subscriber or referrer (automations). |
| country | string | – | Country. |
| crypto_wallet_address | string | – | Wallet address (when it is the unique identifier). |
| string | – | Subscriber email (when email is the campaign's unique identifier). | |
| extra_field | string | – | New extra field value. |
| extra_field_2 | string | – | New extra field 2 value. |
| name | string | – | New name. |
| other_identifier_value | string | – | Custom identifier value (when a custom id is the unique identifier). |
| phone_number | string | – | Subscriber phone number (when phone is the unique identifier). |
| points | integer | – | New points total (contest campaigns only). |
| referral_status | string | – | Mark the referral qualified or unqualified. |
| stripe_customer_id | string | – | Stripe customer id. |
| subscriber_id | string | yes | Subscriber id, e.g. sub_2bad325a25d7 (the id field of a subscriber). |
| tags | array | – | Tags to assign. |
| uuid | string | yes | Campaign (list) uuid, the 12-character id starting with MF (see referralhero_list_campaigns). |
No output schema declared.
No examples provided.
How do I install the ReferralHero MCP by usefulapi server?
ReferralHero MCP by usefulapi is a hosted endpoint at https://referralhero.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 · referralhero.usefulapi.io
claude mcp add --transport http io-usefulapi-referralhero 'https://referralhero.usefulapi.io/mcp'
What is the ReferralHero MCP by usefulapi server?
ReferralHero MCP by usefulapi is listed in the public MCP registry as io.usefulapi/referralhero. Read ReferralHero campaigns, subscribers, referrals and rewards; add subscribers and points. This page covers its hosted endpoint (https://referralhero.usefulapi.io/mcp).
Is the ReferralHero MCP by usefulapi server safe to use?
ReferralHero MCP by usefulapi scores 62 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 ReferralHero MCP by usefulapi server expose?
ReferralHero MCP by usefulapi exposes 28 tools: referralhero_list_campaigns, referralhero_get_leaderboard, referralhero_list_campaign_rewards, referralhero_create_campaign, referralhero_list_subscribers, and 23 more. Their descriptions and schemas cost roughly 4,564 tokens of context every time the server is loaded.
Does the ReferralHero MCP by usefulapi server require authentication?
Yes. ReferralHero MCP by usefulapi 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 ReferralHero MCP by usefulapi server still maintained?
ReferralHero MCP by usefulapi is still listed as active in the MCP registry. We last reached this channel on 25 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.