io.usefulapi/autumn

io.usefulapi/autumn is a remote MCP server published at autumn.usefulapi.io. It has been probed 35 times since 9/4/2026. It answered in 35 of them (100.0%), a near-uninterrupted record. Median response time is 456 ms, placing it among the faster endpoints. Its tool list could not be read; the server is closed to direct calls. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.

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

LegacyLegacy ⚠Version: 1.0.1First probe: 2026-09-04 15:47:51Last probe: 2026-09-07 07:55:38

Agent readability score

Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.

Agent readability score

We could not read this server's tool schema, so an AI evaluation cannot be generated. It will be retried automatically once the server is measured again.

Event narrative

Raw observations

Run	Era	Modern	ms	Legacy	ms	Versions
2026-09-07 07:55:38	Legacy	401	468	200	497	2025-06-18
2026-09-07 05:25:31	Unknown	429	684	429	690	—
2026-09-07 02:57:58	Unknown	429	122	429	102	—
2026-09-07 00:27:42	Unknown	429	182	429	190	—
2026-09-06 22:36:06	Unknown	429	1189	429	1196	—
2026-09-06 20:44:13	Unknown	429	202	429	200	—
2026-09-06 18:49:47	Unknown	429	1122	429	1121	—
2026-09-06 16:56:18	Legacy	401	284	200	297	2025-06-18
2026-09-06 15:42:25	Unknown	429	260	429	242	—
2026-09-06 13:49:02	Unknown	429	369	429	383	—

Supported versions

2025-06-18

as declared by server/discover + initialize

Capabilities

tools

Schema score

? tools

Schema compliance

tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.

60/100

Fair

tools/list schema invalid: —
inputSchema not measurable
Smoke test not run this round
Cold-start not measurable (no handshake)

Era history

Each cell is one probe run. Faded cells are incomplete probes — one leg did not answer, so the era is inconclusive.

Era distribution

Unknown49%Legacy46%Auth-gated6%

Legacy07.09 07:55

04.09 15:47Measurements: 3507.09 07:55

LegacyAuth-gatedUnknown

Response time history

The two probe legs separately: modern server/discover and legacy initialize.

server/discoverinitialize

Event log

Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.

1 hour agoServer build: — → 1.0.1
1 hour agoSupported versions: — → 2025-06-18
1 hour agoEra changed: Unknown → Legacy
15 hours agoSupported versions: 2025-06-18 → —
15 hours agoEra changed: Legacy → Unknown
16 hours agoServer build: — → 1.0.1
16 hours agoSupported versions: — → 2025-06-18
16 hours agoEra changed: Unknown → Legacy
yesterdayEra changed: Auth-gated → Unknown
yesterdayEra changed: Unknown → Auth-gated

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Markdown

[![mcpmetrics](https://mcpmetrics.io/badge/io.usefulapi/autumn/era.svg)](https://mcpmetrics.io/servers/io-usefulapi-autumn)

HTML

<a href="https://mcpmetrics.io/servers/io-usefulapi-autumn"><img src="https://mcpmetrics.io/badge/io.usefulapi/autumn/era.svg" alt="mcpmetrics"></a>

Raw observations

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