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BCP 47 lang attribute shape
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/html-lang-ok/mcp · website · measurements and detailsBCP 47 language tag shape
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/bcp47-ok/mcp · website · measurements and detailshtml lang attribute shape, markup discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/htmllang-ok/mcp · website · measurements and detailsFind IANA ports, MIME types, HTTP codes/fields, URI schemes, PENs, BCP 47 tags, RFCs, any registry.
MCP endpoint :https://iana-registries.caseyjhand.com/mcp · website · measurements and detailsSmall public utility for autonomous clients.
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/util-047/mcp · website · measurements and detailsPremium agentic endpoint for affiliate-link-attribution-mcp.
MCP endpoint :https://api.m2mcent.com/affiliate-link-attribution-mcp/sse · measurements and detailsPremium agentic endpoint for cross-device-attribution-mcp.
MCP endpoint :https://api.m2mcent.com/cross-device-attribution-mcp/sse · measurements and detailsMCP server for Salesforce — 47 tools for leads, campaigns, pipeline, attribution, and reporting.
Package npm :salesforce-marketing-mcp · website · measurements and detailsCatalog attribute normalizer, taxonomy-grounded — no fabricated Google/Shopify category IDs.
MCP endpoint :https://catalog-normalizer.acjlabs.com/mcp · website · measurements and detailsimg alt attribute count, markup discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/alt-ok/mcp · website · measurements and detailsSet-Cookie attribute count, values discarded
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/set-cookie/mcp · website · measurements and detailsETag shape
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/etag-shape/mcp · website · measurements and detailsCUID shape check
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/cuid-shape/mcp · website · measurements and detailsCheck a DOI shape.
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/doi-shape/mcp · website · measurements and detailsISBN digit shape
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/isbn-shape/mcp · website · measurements and detailsKSUID shape check
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/ksuid-shape/mcp · website · measurements and detailsMongo ObjectId shape
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/objectid-shape/mcp · website · measurements and detailsFirebase PushID shape
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/pushid-shape/mcp · website · measurements and detailsSnowflake id shape
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/snowflake-shape/mcp · website · measurements and detailsTypeID shape check
MCP endpoint :https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/typeid-shape/mcp · website · measurements and detailsAI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt
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