Guardian vs SearchAPI.io: search API pricing and SERP data tradeoffs
SearchAPI.io and Guardian both sell search volume, but SearchAPI.io is closer to a SERP data platform with many engine-specific APIs, proxy infrastructure, geo-targeting, and a published legal-protection guarantee. Guardian is a lower-cost multi-engine search layer for applications and AI agents.
Guardian pricing
Guardian charges one credit per started block of 10 requested search results. The effective rates below assume each search requests 10 results or fewer and the included monthly credits are fully used.
| Plan / mode | Price | Included | Effective search price |
|---|---|---|---|
| Free | $0 | 1,000 credits | $0No card required. |
| Developer | $49/mo | 25,000 credits | $1.96 / 1KUp to 10 results uses 1 credit. |
| Growth | $249/mo | 200,000 credits | $1.245 / 1KUp to 10 results uses 1 credit. |
| Scale | $999/mo | 1,000,000 credits | $0.999 / 1KUp to 10 results uses 1 credit. |
SearchAPI.io pricing
| Plan / mode | Price | Included | Effective search price |
|---|---|---|---|
| Developer | $40/mo | 10,000 searches | $4 / 1K99.9% SLA. |
| Production | $100/mo | 35,000 searches | $3 / 1KTeam management and legal-protection guarantee listed. |
| BigData | $250/mo | 100,000 searches | $2.50 / 1KMedium throughput. |
| Scale | $500/mo | 250,000 searches | $2 / 1KHigh throughput and analytics. |
| Octo 1M | $1,500/mo | 1,000,000 searches | $1.50 / 1KDedicated throughput and priority support. |
| Octo 5M | $5,000/mo | 5,000,000 searches | $1 / 1KHighest-volume published tier shown. |
SearchAPI.io lists several intermediate Octo tiers as well. The rows above show representative points on its published price curve. SearchAPI.io bills searches rather than Guardian-style ten-result credit blocks, so endpoint behavior should be compared before treating the units as identical.
Guardian reaches the low unit price at a smaller commitment
Guardian Developer is $49 for 25,000 ten-result searches, or about $1.96 per 1,000. SearchAPI.io Developer is $40 for 10,000, or $4 per 1,000. Guardian Growth is about $1.245 per 1,000 at 200,000 searches, while SearchAPI.io lists $2.50 per 1,000 at 100,000 and $2 per 1,000 at 250,000.
At one million searches, Guardian Scale is $999, about $0.999 per 1,000. SearchAPI.io's Octo 1M is $1,500, or $1.50 per 1,000. SearchAPI.io reaches $1 per 1,000 on its published Octo 5M tier at a $5,000 monthly commitment.
SearchAPI.io sells SERP-specific infrastructure
SearchAPI.io exposes APIs for specific search products and engines, including Google surfaces, Bing, DuckDuckGo, maps, shopping, image search, and other SERP formats. Its pricing page also advertises built-in geo-targeting, premium proxies, pay-per-success, a 99.9% SLA, and a legal-protection guarantee on paid plans where listed.
Guardian is designed around one multi-engine search contract. The client asks Guardian for web or a supported vertical and gets normalized results rather than integrating with a separate endpoint for every upstream SERP surface.
If exact engine-specific SERP data, proxy behavior, legal coverage, or a published 99.9% SLA is part of the procurement requirement, SearchAPI.io has features that a lower search price does not replace.
Compare normalized search with exact SERP capture
Guardian is the cleaner fit when the application wants ranked search results and does not care which upstream engine produced every field. SearchAPI.io is the cleaner fit when the upstream search product itself is part of the data contract.
That distinction should be in the benchmark. Check the fields your application consumes, location controls, result types, pagination behavior, and whether the response must mirror a particular SERP. If the app only needs useful URLs and metadata for an agent, paying for exact SERP fidelity can be unnecessary.
Which one fits your workload?
Choose Guardian when
- You want normalized search results rather than exact SERP reproduction.
- You want lower unit cost at roughly 25,000 to 1,000,000 ten-result searches per month.
- You want REST, the @wundercorp/guardian SDK, and MCP under the same commercial account.
- Multi-engine and vertical routing is more useful than dozens of engine-specific endpoints.
Choose SearchAPI.io when
- You need engine-specific SERP APIs and precise geo-targeting behavior.
- A published 99.9% SLA or SearchAPI.io's legal-protection guarantee is part of your buying criteria.
- You need dedicated throughput at multi-million-search volume or SearchAPI.io-specific SERP features.
Start with 1,000 free search credits.
The business API uses scoped API keys, monthly quotas, usage headers, and the same account across REST, the TypeScript SDK, and MCP.
Frequently asked questions
Is Guardian cheaper than SearchAPI.io?
At the published self-serve points compared here, Guardian is cheaper from roughly 25,000 through 1,000,000 ten-result searches per month. SearchAPI.io reaches $1 per 1,000 searches at its published 5-million-search, $5,000-per-month tier.
Is Guardian a SERP API?
Guardian is better described as a normalized multi-engine search API. SearchAPI.io exposes many engine-specific SERP APIs when exact upstream result formats and search products are part of the requirement.
Does Guardian publish a 99.9% SLA?
Guardian's current self-serve business plans do not advertise a 99.9% SLA. SearchAPI.io lists a 99.9% SLA on its paid plans. Enterprise buyers should evaluate support and SLA terms separately from raw request pricing.
Pricing sources
Vendor prices change. These comparisons use public pricing and documentation available on October 7, 2026. Check the linked vendor page before making a purchase decision.