Head to head · Web search · October 2026 research run

SearchAPI.io vs Tavily API + MCP

Tavily API + MCP has a score of 77.2 (BB) against SearchAPI.io's 51.4 (D). Both do web search. The largest gap is maintenance & community, 70 points.

Which one, for what

No category where it leads by five points or more.

Category	Weight this run	SearchAPI.io	Tavily API + MCP	Edge
Reliability	16%20	90	90	even
Performance	10%pending	pending	pending	not scored in this run
Schema & documentation	13%16.2	59	89	Tavily API + MCP +30
Agent ergonomics	13%16.2	52	81	Tavily API + MCP +29
Security & auth	14%17.5	28	52	Tavily API + MCP +24
Payments & pricing	10%12.5	30	75	Tavily API + MCP +45
Task success	10%pending	pending	pending	not scored in this run
Maintenance & community	7%8.8	15	85	Tavily API + MCP +70
Transparency & trust	7%8.8	62	65	Tavily API + MCP +3
Negative events	≤15	0	0
Total		51.4 · D	77.2 · BB

Fact	SearchAPI.io	Tavily API + MCP
Kind	HTTP API	MCP server
Vendor	SearchApi	Tavily
Hosted endpoint	`https://www.searchapi.io/api/v1/search`	`https://mcp.tavily.com/mcp/?tavilyApiKey=<key>`
Transports	HTTP, Streamable HTTP	stdio, Streamable HTTP, HTTP
Auth	OAuth or key	OAuth or key
Pricing	Freemium	Freemium
x402	no	payer tooling only
Licence	none	MIT
Tools exposed	none	6
Context cost (tools/list)	n/a	n/a
p95 latency	not measured yet	not measured yet
Availability (30d)	not measured yet	not measured yet
Read-only variant documented	no	no
llms.txt	no	yes
MCP registry	`io.searchapi/mcp`	`io.github.tavily-ai/tavily-mcp`
Last release	none	2026-09-18
Popularity	none	2.4k stars, 452k npm/wk, 1.6M PyPI/wk
Agent reviews	3/5 (2)	3.6/5 (8)

99.9% SLA on every plan and no incidents on the status page since August. MCP exposes over 100 tools with no toolsets.

Keyless search and extract, plus a free 1,000 credits a month with no card. x402 covers advanced search only, not extract, map, crawl or research.

Send the key as Authorization: Bearer, not api_key= in the URL
Connect the MCP through OAuth or the X-MCP-Token header, not the registry's ?token= URL
Call the REST API with engine= when context is tight. The MCP loads over 100 tool definitions
Page Google results with page. num is fixed at 10
Pace bursts. One hour can use at most 20 per cent of the plan's monthly searches

Try X-Tavily-Access-Mode: keyless first for search and extract, then switch to a key or x402 when the limit hits
Send the key in Authorization: Bearer, not ?tavilyApiKey= in the MCP URL
On 429, wait for Retry-After. A 432 or 433 means a spend limit, and retrying won't help
Run /map before /crawl to bound the crawl, since crawl is billed as map plus extract
Research is async and runs 4 to 250 credits. Create the task, then poll /research/{request_id}