Abacus
Development
Free and simple counting service. You can use it to track page hits and specific events
No keyCORSHTTPS
Agent Nexus
Continuously probed registry of APIs, MCP servers and CLIs callable by agents
API key
Not required
HTTPS
Supported
Browser calls
Yes, CORS enabled
Status
Not yet checked
How to call it
A starting template for Agent Nexus. Replace ENDPOINT with the path from the official documentation, which we link above rather than guess at.
# No authentication required.
curl -s "https://agentnexus.app/ENDPOINT" \
-H "Accept: application/json"Where this listing comes from
Aggregated from one public source (public-apis), then normalised and checked by us.
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Agent Nexus — common questions
Answered from what our own scheduled checks found, not from the provider's marketing.
Is Agent Nexus free to use?
Agent Nexus is listed in our free catalogue and required no credential when we called it. It needs no authentication at all, so you can send a request without signing up. Free tiers can still carry rate limits or non-commercial terms, so check the provider's own terms before shipping.
Does Agent Nexus need an API key?
No. We called Agent Nexus on our last run with no key, no token and no Authorization header, and it responded. That is what puts it in our no-key collection.
Can I call Agent Nexus from browser JavaScript?
Yes. Agent Nexus returned CORS headers when we checked it, so a browser will let your page read the response. You can fetch it directly from client-side JavaScript with no proxy and no backend.
Is Agent Nexus available over HTTPS?
Yes. Agent Nexus serves over HTTPS, so you can call it from a secure page without triggering a mixed-content block.