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MCP live MCP 2026-07-28 streamable-http

zerm

dev.zerm/zerm

Agent utility belt: memory, locks, webhook inboxes, timers, DNS, email, URL, timezone, cron

Uptime
100.0%
1 direct probes · 30d
Response
442ms
last probe
Tools
24
callable
Resources
0
readable
Prompts
0
available
Primary URL
https://zerm.dev/mcp

Tools · 24

kv_set

Store a value durably under (namespace, key) with a TTL. Survives across your sessions - use it as memory between stateless runs. Value must be a string (JSON-encode objects), max 8192 bytes. TTL defa…

kv_get

Retrieve a value previously stored with kv_set. Call this at the start of a run to restore state, preferences, or progress saved by earlier runs. Returns found=false if missing or expired.

kv_delete

Permanently remove one key from your namespace, freeing a slot against the 1000-key limit. Use it when a stored value is wrong or unwanted before its TTL runs out; if you only want the value to lapse …

kv_list

List the keys held in your namespace, optionally narrowed to those starting with a prefix. Use it to discover what earlier runs saved before deciding what to fetch with kv_get: it returns key names wi…

timer_verify_origin

One-time consent handshake before timers can deliver to an origin. Prerequisite: an HTTPS endpoint you control that can read a request body and echo part of it back - if you have no endpoint of your o…

timer_schedule

Schedule a durable callback: at fire time this service POSTs your JSON payload to your URL. Use it to wake up future runs of yourself or your orchestrator - agents cannot wake themselves. Prerequisite…

timer_cancel

Cancel a pending timer using the id returned by timer_schedule. The id is the authorization: holding it is what proves you scheduled the timer, so keep it secret. Already-delivered or already-cancelle…

timer_status

Check a timer by the id returned by timer_schedule: status (pending|delivering|delivered|failed|cancelled), attempts, last error. Returns found=false for an unknown id.

name_check

Live availability check for a name across domain TLDs (registry RDAP), npm, PyPI, and GitHub usernames. Real registry lookups at call time - not guesses. Each result is registered, unregistered, unkno…

email_check

Deliverability probe for an email address without sending anything: syntax validation, live MX lookup (with A/AAAA fallback per RFC 5321), disposable-domain detection, and typo suggestions for common …

url_check

Live URL health check: follows the full redirect chain (each hop reported), returns final status, content type, response time, TLS certificate expiry and trust, and access hints (login walls, bot bloc…

cron_next

Deterministic cron expression validator and scheduler: parses a cron expression (5 or 6 field, seconds optional) and computes the next N actual fire times, timezone-aware. Use this instead of guessing…

regex_test

Execute a regex against test strings and return the ACTUAL matches: match text, indices, capture groups, named groups, and optional replacement output. Deterministic proof, not prediction - run this b…

fixture_rows

Bulk realistic test data: generate up to 10000 rows from a field schema in one call - orders of magnitude cheaper than generating rows with tokens. Deterministic when you pass a seed (same seed + sche…

tz_convert

Deterministic timezone conversion: convert a timestamp between IANA timezones with full DST awareness. Models routinely miscalculate DST transitions - this gives exact results. Returns the converted t…

tz_info

Timezone intelligence: for a given IANA timezone and date, returns the UTC offset, whether DST is active, the exact UTC instant of each DST transition in that year, and the timezone abbreviation. Tran…

dns_query

Full DNS record lookup for a domain: returns A, AAAA, MX, NS, TXT, CNAME, SOA, and CAA records in one call. Automatically parses SPF and DMARC policies from TXT records. Use this for infrastructure au…

request_tool

Hit a capability wall? Describe a tool you wish this server had and the task you were trying to accomplish. The operator reviews every submission; the most-requested capabilities get built. Free, no p…

lock_acquire

Acquire a mutual-exclusion lock so concurrent agent runs do not double-process the same work. If two runs race, exactly one gets acquired=true plus a release token; the other gets acquired=false with …

lock_release

Release a lock early using the token returned by lock_acquire. Only the token holder can release; without the token the lock simply expires on its own. Returns released=false if the token is wrong or …

counter_next

Atomically increment a named counter and return the new value. Guaranteed unique, monotonically increasing integers across concurrent stateless runs - use it for sequence numbers, run IDs, or once-onl…

inbox_create

Create a URL that receives HTTP requests for you. Point any webhook (GitHub, Stripe, CI, a form) at it and read what arrives with inbox_poll - no server, no signup, no tunnel. This is the way to be no…

inbox_poll

Read requests delivered to an inbox since you last looked. Pass after=<the next_after from your previous poll> to get only new ones; omit it to start from the beginning. Each payload has its method, h…

inbox_delete

Delete an inbox and everything delivered to it. The URL stops accepting requests immediately. Inboxes also delete themselves once unpolled past their expiry, so this is only for tearing down early.

How to use

Add to your Claude Desktop / Cursor / Cline MCP config:

{
  "mcpServers": {
    "zerm": {
      "url": "https://zerm.dev/mcp",
      "transport": "streamable-http"
    }
  }
}