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The real catalog of tools for AI agents

Google tells you what exists. Faceabot tells you what holds up.

44,737real tools
29,284callable over HTTPS
19,897measured
6,296proven reliable
Icyn Date Not measured yet

Date context for agents: Chinese lunar calendar, solar terms, holidays for 12 regions. Offline.

Package npm : @icyn/date-mcp · website · measurements and details
UTC ISO date Not measured yet

UTC ISO date

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/iso-date-utc/mcp · website · measurements and details
UTC ISO week-date Not measured yet

UTC ISO week-date

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/iso-week-date/mcp · website · measurements and details
HTTP-date IMF-fixdate shape, value discarded Not measured yet

HTTP-date IMF-fixdate shape, value discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/date-http/mcp · website · measurements and details
Due Date Flaky · 80% over 5 checks Does the job (tested) · 4/4

Estimate a due date from LMP, conception, or ultrasound, with ACOG redating rules.

MCP endpoint : https://due-date.gumballtools.com/api/mcp · website · measurements and details
UTC ISO ordinal date Not measured yet

UTC ISO ordinal date

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/ordinal-utc/mcp · website · measurements and details
Date Math Calculator Being measured · 0% over 2 checks

Date arithmetic: day differences, business days, age, leap years, day-of-week, add/subtract.

MCP endpoint : https://apished.com/mcp/v1/datemath · website · measurements and details
tilwhen date engine Flaky · 67% over 3 checks Real task being tested · 0/2

Deterministic date arithmetic with auditable receipts: business days, due dates, holidays.

MCP endpoint : https://mcp.tilwhen.com/mcp · website · measurements and details
UTC ISO week-date shape Not measured yet

UTC ISO week-date shape

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/weekdate-utc/mcp · website · measurements and details
Expires HTTP-date shape, value discarded Not measured yet

Expires HTTP-date shape, value discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/expires-ok/mcp · website · measurements and details
UTC ISO ordinal date YYYY-DDD Not measured yet

UTC ISO ordinal date YYYY-DDD

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/iso-ord/mcp · website · measurements and details
Unix seconds to ISO week-date Not measured yet

Unix seconds to ISO week-date

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/unix-iso-w/mcp · website · measurements and details
ISO date to unix seconds, value discarded Not measured yet

ISO date to unix seconds, value discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/iso-unix/mcp · website · measurements and details
Last-Modified HTTP-date shape, value discarded Not measured yet

Last-Modified HTTP-date shape, value discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/lastmod-ok/mcp · website · measurements and details
Rove Dating Private (key required)

Plan-first dating in Utah Valley: browse date plans with photos, show interest, post plans.

MCP endpoint : https://rovedating.com/mcp · website · measurements and details
Retry-After integer-or-date, value discarded Not measured yet

Retry-After integer-or-date, value discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/retry-ok/mcp · website · measurements and details
Unix seconds to ISO date, number discarded Not measured yet

Unix seconds to ISO date, number discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/unix-iso/mcp · website · measurements and details
UTC ISO week-date YYYY-Www-D Not measured yet

UTC ISO week-date YYYY-Www-D

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/weekdate-ok/mcp · website · measurements and details
If-Modified-Since HTTP-date, value discarded Not measured yet

If-Modified-Since HTTP-date, value discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/if-mod-ok/mcp · website · measurements and details
If-Unmodified-Since HTTP-date, value discarded Not measured yet

If-Unmodified-Since HTTP-date, value discarded

MCP endpoint : https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/if-unmod-ok/mcp · website · measurements and details

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