Autumn MCP by usefulapi MCP Server

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answering

Autumn MCP by usefulapi is answering right now. Last checked 11 min ago. It exposes 18 tools. Last commit 2 Nov 2026.

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

Uptime history 91 days of history · worst day 16%

91 days agonow

100.0%

Uptime 24h

91 of 91 checks

Tools

read from the server

150 ms

Response time

average over 24h

Stars

last commit 2 Nov 2026

What changed 84

Every tool that appeared, vanished or quietly changed what it asks for. Recorded since 30 September 2026. No other catalogue keeps this.

2 Nov a tool changed version

31 Oct a tool changed version4 times that day

30 Oct a tool changed version2 times that day

29 Oct a tool changed version2 times that day

28 Oct a tool changed version

27 Oct a tool changed version

25 Oct a tool changed version4 times that day

24 Oct a tool changed version3 times that day

23 Oct a tool changed version

22 Oct 17 tools appeared autumn_attach_plan, autumn_check, autumn_create_entity and 14 more

and 58 more, back to 30 September 2026

Autumn MCP by usefulapi missed 2 checks this week

Everything else answered, so this is steady rather than shaky. We check every 15 minutes, which is how a one-off gets told apart from the start of a pattern, and how you hear about the next one within the hour instead of from your users.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

claude mcp add autumn --transport http https://autumn.usefulapi.io/mcp

Settings → Connectors → Add custom connector, then paste this address

https://autumn.usefulapi.io/mcp

~/.codex/config.toml

[mcp_servers.autumn]
url = "https://autumn.usefulapi.io/mcp"

.cursor/mcp.json

{
  "mcpServers": {
    "autumn": {
      "url": "https://autumn.usefulapi.io/mcp"
    }
  }
}

.vscode/mcp.json

{
  "servers": {
    "autumn": {
      "type": "http",
      "url": "https://autumn.usefulapi.io/mcp"
    }
  }
}

Available tools 18

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

autumn

autumn_attach_plan

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 }.

autumn_check

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.

autumn_create_entity

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

autumn_get_customer

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

autumn_get_entity

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

autumn_get_feature

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

autumn_get_or_create_customer

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

autumn_get_plan

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

autumn_list_customers

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

autumn_list_entities

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

autumn_list_features

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

autumn_list_invoices

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

autumn_list_plans

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

autumn_open_customer_portal

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 }.

autumn_preview_attach

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.

autumn_request

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}.

autumn_track_usage

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.

autumn_update_customer

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

Tools removed

Tools this server used to expose. Anything built against them stopped working on the day they went.

attach_plan

removed 22 Oct 2026

check

removed 22 Oct 2026

create_entity

removed 22 Oct 2026

get_customer

removed 22 Oct 2026

get_entity

removed 22 Oct 2026

get_feature

removed 22 Oct 2026

get_or_create_customer

removed 22 Oct 2026

get_plan

removed 22 Oct 2026

list_customers

removed 22 Oct 2026

list_entities

removed 22 Oct 2026

list_features

removed 22 Oct 2026

list_invoices

removed 22 Oct 2026

list_plans

removed 22 Oct 2026

open_customer_portal

removed 22 Oct 2026

preview_attach

removed 22 Oct 2026

track_usage

removed 22 Oct 2026

update_customer

removed 22 Oct 2026

Endpoints

URL	Transport	State	Latency	Checked
https://autumn.usefulapi.io/mcp	streamable-http	answering	66 ms	11 min ago

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Autumn MCP by usefulapi — questions

Answers built from our own checks of this server.

What can Autumn MCP by usefulapi do?

It exposes 18 tools, read directly from the server on our last check. Among them: autumn_attach_plan, autumn_check, autumn_create_entity, autumn_get_customer, autumn_get_entity, autumn_get_feature and 12 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Autumn MCP by usefulapi working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 91 of 91 checks got a reply (100.0%), average response time 150 ms. The bar chart above shows every period we have measured.

Did Autumn MCP by usefulapi ever remove tools?

Yes. attach_plan, check, create_entity, get_customer and 13 more are no longer exposed — we recorded the date each one disappeared. A tool vanishing usually means a breaking change for anything that depended on it.

How do I connect Autumn MCP by usefulapi?

Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Autumn MCP by usefulapi need an API key?

No. Autumn MCP by usefulapi completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 18 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Autumn MCP by usefulapi?

It answers our handshake in 150 ms on average, which is faster than 83% of all working MCP servers we measure. That puts it in the quick quarter of the ecosystem. The comparison comes from our own checks across the whole registry, every 15 minutes.

Is Autumn MCP by usefulapi open source?

The code is open source: it is published under the MIT licence, written in JavaScript, 1 stars on GitHub and 1 open issue. The licence covers the code in the repository, not the hosted service at autumn.usefulapi.io, which runs on its operator's own terms.