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n8nSurfer’s score is one of the better-known numbers in SEO. Paste your draft, pick the term, and it tells you how closely you resemble the pages currently ranking. Writers like having a target and editors like having a standard.
ContextBolt works at the step before that, deciding whether the page is worth writing and what it must cover, for $35 a month inside the agent that drafts it. Start with the pricing, because it is easy to misread.
Check the billing toggle
The figures we checked were Discovery at $49 a month and Standard at $99, and both were the annually billed rates in that view. Month to month will be higher.
ContextBolt is $35 a month with no annual plan and nothing to commit to. Whether Surfer is cheaper depends entirely on whether you are willing to pay for a year up front, which is a different question to which tool is better. The SEO tool pricing guide keeps billing periods separate throughout for exactly this reason.
A score measures resemblance, not judgment
Here is the limit of any content optimizer. It compares your draft to the pages that already rank. That is useful, and it quietly assumes those pages deserve to rank and that you picked the right term.
It cannot tell you the query has no commercial intent. Or that the top results are all comparison pages while you are writing a how-to. Or that you already have a page half-ranking for that term and you are about to split your own traffic.
ContextBolt works at that earlier point. What does the page already get from Google, with Search Console connected. What are the top results actually answering. What does an audit find. What do the AI answers cite when someone asks the buying question.
Then the same agent drafts it, with all of it in context.
Agent access sits at different tiers
Worth noting if MCP is part of why you are comparing. Surfer’s MCP is available on Pro and above, so it is a higher-tier feature.
ContextBolt’s MCP endpoint is included at $35, because the agent is where the product lives. The SEO Board holds what it finds.
Where Surfer still fits
A content score, a graded editor and brief templates. If your team works to a Surfer number and an editor checks it before publishing, that is a process Surfer runs and you should say so before canceling anything.
It sits after the question ContextBolt answers, which is whether the page is worth writing and what it must cover. Keep Surfer for the grading if that is your process. Start here for the decision, because the evidence arrives in the agent that drafts.
They stack quite well
If you publish a lot, running both is coherent. ContextBolt picks the topic and drafts from real evidence. Surfer checks the draft against what is ranking before it goes out.
The overlap is small, which is usually the sign that two tools are doing different jobs rather than competing.
Try it on the next brief
Before you open the editor, ask whether the page is worth writing and what it should cover.
If that changes the brief, you have found the gap. Start the 7-day trial with 100 credits. A card is required, and it becomes $35 a month unless you cancel before the trial ends.