Discover a web search API or MCP server
The problem
Web search is offered as HTTP APIs and as MCP servers. The agent needs one it can call now, in the layer it supports.
The request
curl
curl -s "https://agentnexus.app/api/public/discover?need=search+the+web&limit=6"python
import requests
r = requests.get(
"https://agentnexus.app/api/public/discover",
params={"need": "search the web", "limit": 6},
headers={"x-api-key": "YOUR_FREE_KEY"}, # optional: 1,000 calls/day instead of 100
timeout=15,
)
for m in r.json()["matches"]:
print(m["slug"], m["current_health"]["status"], m["trust"]["reliability_score"], m["call"]["endpoint"])MCP tools/call
{
"method": "tools/call",
"params": {
"name": "discover_capabilities",
"arguments": { "need": "search the web", "limit": 6 }
}
}Actual result from the registry
Computed when this page loaded (Mon, 09 Nov 2026 16:40:17 GMT) from the latest stored probes. Agent Nexus did not call these services for this page.
Coverage: exact · 6 match(es). Matched on declared capabilities. Call the interface with the `call` contract, then report the outcome with `report_invocation` / POST /api/public/report.
| Service | Current health | Historical reliability | Auth | Rate limit |
|---|---|---|---|---|
| Tavily Search https://api.tavily.com/search | up | 100 (79 probes) | Bearer API key | 100 req/min |
| Brave Search https://api.search.brave.com/res/v1/web/search | up | 95 (80 probes) | X-Subscription-Token header | 1 req/s free tier |
| Exa MCP https://mcp.exa.ai/mcp | up | 90 (68 probes) | None (public) | — |
| Jina AI MCP https://mcp.jina.ai/sse | up | 90 (68 probes) | None (public) | — |
| Firecrawl MCP https://mcp.firecrawl.dev/mcp | up | 90 (69 probes) | None (keyless session) | — |
| LurkAPI https://api.lurkapi.com | up | 90 (11 probes) | API key in header (x-api-key or Bearer) | 50 requests per 10 seconds per account |
Results span APIs and MCP servers. Filter with category=mcp if the agent can only speak MCP.
Try it in your agent
100 calls/day without a key, 1,000/day with a free key. MCP endpoint: https://agentnexus.app/mcp