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Autumn MCP by usefulapi

REMOTE · AUTUMN.USEFULAPI.IO

MCP server for Autumn — read customers, plans, balances & invoices; track usage and attach plans.

−45 this week 18 Trust /100

Last scanned (2 hours ago)

Scores higher than 4% of remote servers

Reachable. Last reached 5 Nov 2026.

Category Finance and Payments

Trust breakdown (7 categories)

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
Transport & Reachability0
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.

Changelog

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.

  • 1 Nov 26 −47
    • Endpoint reachability: reachable → not serving MCP ▼ security
    • Stability: fail → unverified ▼ security
    • Tool safety: pass → unverified ▼ security
    • Authorization: pass → unverified ▼ security
    • Schema quality: 100 → unverified ▼ functional
    • Capabilities: pass → unverified ▼ functional
    • Tool coverage: 100 → unverified ▼ functional
  • 31 Oct 26 +2
    • Authorization: partial → pass ▲ security
    • MCP protocol: fail → pass ▲ functional
    • New prompt “check_if_a_customer_can_use_a_feature” functional
    • New prompt “compare_your_plans_and_the_features_they_include” functional
    • New prompt “list_customers_and_the_plan_each_one_is_on” functional
    • New prompt “preview_a_plan_change_then_attach_the_plan” functional
    • New prompt “review_recent_invoices_and_who_they_went_to” functional
    • MCP protocol version: 2025-06-18 → 2025-11-25 functional
    • Server version: 1.32.0 → 1.34.0 functional
    • Server version: 1.31.0 → 1.32.0 functional
    • Server version: 1.30.2 → 1.31.0 functional
  • 30 Oct 26 0
    • Server version: 1.30.1 → 1.30.2 functional
    • Server version: 1.30.0 → 1.30.1 functional
  • 29 Oct 26 0
    • Server version: 1.29.0 → 1.30.0 functional
    • Server version: 1.28.0 → 1.29.0 functional
  • 28 Oct 26 0
    • Server version: 1.26.0 → 1.28.0 functional
  • 27 Oct 26 0
    • Server version: 1.25.0 → 1.26.0 functional
  • 25 Oct 26 0
    • Server version: 1.24.0 → 1.25.0 functional
    • Server version: 1.23.0 → 1.24.0 functional
    • Server version: 1.22.3 → 1.23.0 functional
    • Server version: 1.22.1 → 1.22.3 functional
    • Server version: 1.22.0 → 1.22.1 functional
  • 24 Oct 26 0
    • The server rewrote its instructions, which are the text every model session reads security
    • Server version: 1.21.0 → 1.22.0 functional
    • Server version: 1.20.0 → 1.21.0 functional
    • Server version: 1.18.0 → 1.20.0 functional
Diagnostics

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://autumn.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 autumn.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://autumn.usefulapi.io/mcp Redirected 302 https://usefulapi.io/autumn/
http (plaintext) http://autumn.usefulapi.io/mcp Inconclusive 302 http://autumn.usefulapi.io/mcp
MCP tools · 18 exposed · ~2,339 tokens

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 →

Tool Tokens
autumn_attach_plan ~243

MUTATES Autumn billing data — attaches (subscribes) a plan to a customer; may create an invoice / return a payment URL. Autumn API: POST /v1/billing.attach. Returns { customer_id, invoice, payment_url, required_action }.

NameTypeReqDescription
checkout_session_paramsobject–Extra Stripe checkout session params (can carry metadata).
customer_idstringyesThe ID of the customer to attach the plan to.
customizeobject–Optional plan overrides (price, items, licenses, free trial).
entity_idstring–The ID of the entity to attach the plan to.
feature_quantitiesarray–Prepaid feature quantities: array of { feature_id, quantity?, adjustable? }.
invoice_modeobject–Invoice-mode configuration object (send an invoice instead of auto-charging).
plan_idstringyesThe ID of the plan.
redirect_modestring–Checkout redirect mode: always, if_required, or never.
success_urlstring–URL to redirect to after a successful checkout.
versioninteger–The version of the plan to attach.

No output schema declared.

No examples provided.

autumn_check ~155

READ-ONLY entitlement check: does a customer have access to (or enough balance of) a feature? Autumn API: POST /v1/balances.check. This tool never records usage — it does not expose send_event or lock.

NameTypeReqDescription
customer_idstringyesThe ID of the customer.
entity_idstring–Entity id for entity-scoped balances (e.g. per-seat limits).
feature_idstringyesThe ID of the feature to check.
required_balancenumber–Minimum balance required for access. Returns allowed:false if below. Defaults to 1.
with_previewboolean–Include upgrade/upsell (paywall) info in the response when access is denied.

No output schema declared.

No examples provided.

autumn_create_entity ~126

MUTATES Autumn billing data — creates an entity (e.g. a seat) under a customer, tied to a feature. Autumn API: POST /v1/entities.create.

NameTypeReqDescription
billing_controlsobject–Optional billing controls for the entity (spend/usage limits).
customer_idstringyesThe ID of the customer to create the entity for.
entity_idstringyesThe ID of the entity.
feature_idstringyesThe ID of the feature this entity is associated with.
namestring|null–The name of the entity.

No output schema declared.

No examples provided.

autumn_get_customer ~83

Fetch a single Autumn customer by id, optionally expanding related data (invoices, entities, subscriptions, balances). Autumn API: POST /v1/customers.get.

NameTypeReqDescription
customer_idstringyesYour unique identifier for the customer.
expandarray–Related data to expand, e.g. invoices, entities, subscriptions.plan, purchases.plan, balances.feature.

No output schema declared.

No examples provided.

autumn_get_entity ~92

Fetch a single entity (e.g. a seat) belonging to a customer. Autumn API: POST /v1/entities.get.

NameTypeReqDescription
customer_idstringyesThe ID of the customer that owns the entity.
entity_idstringyesThe ID of the entity.
expandarray–Related data to expand, e.g. invoices, entities, subscriptions.plan, purchases.plan, balances.feature.

No output schema declared.

No examples provided.

autumn_get_feature ~39

Fetch a single feature by id. Autumn API: POST /v1/features.get.

NameTypeReqDescription
feature_idstringyesThe ID of the feature.

No output schema declared.

No examples provided.

autumn_get_or_create_customer ~201

MUTATES Autumn billing data — fetches a customer by id, creating them if they do not exist. Autumn API: POST /v1/customers.get_or_create.

NameTypeReqDescription
create_in_stripeboolean–Whether to create the customer in Stripe.
currencystring–Currency to bill this customer in (e.g. usd, eur).
customer_idstring|nullyesYour unique identifier for the customer (null to create an anonymous customer).
emailstring–Customer's email address.
expandarray–Related data to expand, e.g. invoices, entities, subscriptions.plan, purchases.plan, balances.feature.
fingerprintstring–Unique identifier to detect duplicate customers / prevent free-trial abuse.
metadataobject–Arbitrary key/value metadata for the customer.
namestring–Customer's name.
stripe_idstring–Existing Stripe customer id, if any.

No output schema declared.

No examples provided.

autumn_get_plan ~65

Fetch a single plan by id (optionally a specific version). Autumn API: POST /v1/plans.get.

NameTypeReqDescription
plan_idstringyesThe ID of the plan to retrieve.
versioninteger–The plan version to get. Defaults to the latest.

No output schema declared.

No examples provided.

autumn_list_customers ~158

List/filter customers with cursor pagination. Autumn API: POST /v1/customers.list. Returns { list, next_cursor }.

NameTypeReqDescription
limitinteger–Page size, 1-5000. Default 50.
plansarray–Filter by plan: array of { id, versions? } objects.
processorsarray–Filter by processor type: stripe, revenuecat, vercel.
searchstring–Search customers by id, name, or email.
start_cursorstring–Pagination cursor from a prior response's `next_cursor` (omit / empty for first page).
subscription_statusstring–Filter by status: "active" or "scheduled". Defaults to both.

No output schema declared.

No examples provided.

autumn_list_entities ~177

List a customer's entities with cursor pagination and optional filters. Autumn API: POST /v1/entities.list. Returns { list, next_cursor }.

NameTypeReqDescription
customer_idstringyesRestrict the response to entities owned by this customer id.
limitinteger–Page size, 1-5000. Default 50.
plansarray–Filter by plan: array of { id, versions? } objects.
processorsarray–Filter by parent customer processor: stripe, revenuecat, vercel.
searchstring–Search entities by id or name.
start_cursorstring–Pagination cursor from a prior response's `next_cursor` (omit / empty for first page).
subscription_statusstring–Filter by status: "active" or "scheduled". Defaults to both.

No output schema declared.

No examples provided.

autumn_list_features ~32

List all features in the current environment. Autumn API: POST /v1/features.list. Returns { list }.

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

autumn_list_invoices ~159

List invoices with cursor pagination and optional filters. Autumn API: POST /v1/invoices.list. Returns { list, next_cursor }.

NameTypeReqDescription
customer_idstring–Filter to a single customer by id.
entity_idstring–Filter to a single entity by id (must be paired with customer_id).
limitinteger–Page size, 1-5000. Default 50.
processor_typesarray–Filter by processor: stripe, revenuecat.
start_cursorstring–Pagination cursor from a prior response's `next_cursor` (omit / empty for first page).
statusarray–Filter by invoice status: draft, open, paid, void, uncollectible.

No output schema declared.

No examples provided.

autumn_list_plans ~103

List all plans (products) in the current environment. Autumn API: POST /v1/plans.list. Returns { list }.

NameTypeReqDescription
all_versionsboolean–If true, include all plan versions.
customer_idstring–Include eligibility info (trial availability, attach scenario) for this customer.
entity_idstring–Entity id for entity-scoped plans.
include_archivedboolean–If true, include archived plans.

No output schema declared.

No examples provided.

autumn_open_customer_portal ~108

MUTATES Autumn billing data — creates a Stripe billing-portal session for a customer to manage their subscription. Autumn API: POST /v1/billing.open_customer_portal. Returns { customer_id, url }.

NameTypeReqDescription
configuration_idstring–Stripe billing-portal configuration id.
customer_idstringyesThe ID of the customer to open the billing portal for.
return_urlstring–URL to redirect to when the back button is clicked in the portal.

No output schema declared.

No examples provided.

autumn_preview_attach ~149

Preview the cost/effect of attaching a plan to a customer WITHOUT charging or changing anything. Read-only. Autumn API: POST /v1/billing.preview_attach.

NameTypeReqDescription
customer_idstringyesThe ID of the customer to attach the plan to.
customizeobject–Optional plan overrides (price, items, licenses, free trial).
entity_idstring–The ID of the entity to attach the plan to.
feature_quantitiesarray–Prepaid feature quantities: array of { feature_id, quantity?, adjustable? }.
plan_idstringyesThe ID of the plan.
versioninteger–The version of the plan to attach.

No output schema declared.

No examples provided.

autumn_request ~111

Power-user escape hatch: POST to any Autumn read/preview endpoint not wrapped by a dedicated tool. READ-ONLY — the path is validated to only allow .get / .list / .check / .preview_* actions; write actions are rejected. Autumn API: POST {path}.

NameTypeReqDescription
bodyobject–JSON body object to POST (the endpoint's params).
pathstringyesFull API path, e.g. "/v1/customers.get". Only read/preview suffixes are allowed.

No output schema declared.

No examples provided.

autumn_track_usage ~193

MUTATES Autumn billing data — records a usage event (deducts/credits a feature balance). Provide EITHER feature_id OR event_name. Autumn API: POST /v1/balances.track.

NameTypeReqDescription
customer_idstringyesThe ID of the customer.
entity_idstring–Entity id for entity-scoped balances.
event_namestring–Event name to track usage for. Provide this OR feature_id.
feature_idstring–The feature to track usage for. Provide this OR event_name.
idempotencyKeystring–Optional key to dedupe retried events.
propertiesobject–Additional properties to attach to the usage event.
timestampinteger–Unix timestamp (ms) for the event. Defaults to now.
valuenumber–Amount of usage to record. Defaults to 1. Negative values credit the balance.

No output schema declared.

No examples provided.

autumn_update_customer ~145

MUTATES Autumn billing data — partially updates a customer. Only provided fields change. Autumn API: POST /v1/customers.update.

NameTypeReqDescription
currencystring|null–Currency to bill this customer in (e.g. usd, eur).
customer_idstringyesID of the customer to update.
emailstring|null–Customer's email address.
fingerprintstring|null–Duplicate-detection fingerprint.
metadata––Arbitrary key/value metadata for the customer.
namestring|null–Customer's name.
new_customer_idstring–New id for the customer.
stripe_idstring|null–Stripe customer id.

No output schema declared.

No examples provided.

Install

How do I install the Autumn MCP by usefulapi server?

Autumn MCP by usefulapi is a hosted endpoint at https://autumn.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 · autumn.usefulapi.io

# add to Claude Code
claude mcp add --transport http io-usefulapi-autumn 'https://autumn.usefulapi.io/mcp'
Common questions

What is the Autumn MCP by usefulapi server?

Autumn MCP by usefulapi is listed in the public MCP registry as io.usefulapi/autumn. MCP server for Autumn, read customers, plans, balances & invoices; track usage and attach plans. This page covers its hosted endpoint (https://autumn.usefulapi.io/mcp).

Is the Autumn MCP by usefulapi server safe to use?

Autumn 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 Autumn MCP by usefulapi server expose?

Autumn MCP by usefulapi exposes 18 tools: autumn_get_customer, autumn_list_customers, autumn_check, autumn_list_invoices, autumn_get_entity, and 13 more. Their descriptions and schemas cost roughly 2,339 tokens of context every time the server is loaded.

Does the Autumn MCP by usefulapi server require authentication?

Its publisher declares no required credentials for Autumn 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 Autumn MCP by usefulapi server still maintained?

Autumn 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.