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Zenserp

Zenserp API

Yes. Zenserp publishes a public REST API with api-key auth. See zenserp.com for pricing details.

Auth: api-keyOpenAPI spec
Open API docsTry Zenserp
Public REST API documentedAgent-readiness 4/10
Data from Buddy's database, auto-rechecked weekly

What is the Zenserp API?

The Zenserp API is a public REST interface to keyword data, backlink profiles, SERP positions, and site-audit results. Auth is handled with an API key in a header. No official SDK was detected, so most teams hit it directly with HTTP clients. An OpenAPI spec is published, which means you can auto-generate typed clients from it.

Typical builds: scheduled rank trackers that alert on position drops, competitor monitoring dashboards, and automated site-audit reports piped into Slack or a BI tool.

For agent workflows, the API is the path of least resistance until Zenserp ships an MCP server. ask Claude to summarise this week's ranking shifts, have Cursor draft on-page fixes from a fresh site audit, and let Codex compare your backlink profile to a named competitor.

For the broader picture: full coverage on this tool.

HOOK IT TO YOUR STACK

Real Zenserp API calls you'll write

zenserp-apirest
#Pull live Google SERP for a tracked keyword
GET/api/v1/search?engine=google&q=best+crm+small+business&location=United+States
200 OK · parsed JSON
ai_overview.presenttrue
organic_results[0].domainhubspot.com
organic_results.length10
people_also_ask.length8
Loop across your tracked keyword list daily.
zenserp-apirest
#Run a multi-engine ranking check (Google + Bing)
GET/api/v1/search?engine=bing&q=best+email+marketing+2026
200 OK · bing SERP
organic_results[0].titleMailchimp vs ConvertKit
your_domain.position4
answer_box.presenttrue
search_metadata.statusSuccess
Compare against Google in the same script.
zenserp-apirest
#Pull YouTube search results for video competitor research
GET/api/v1/search?engine=youtube&q=marketing+automation+tutorial
200 OK · 20 videos
videos[0].channelHubSpot
videos[0].views184k
videos[0].published3 months ago
Failed requests billed?No (pay-per-success)
TMB SCORE FOR ZenserpAuth: api-keyAgent fit: 4/10

Endpoints illustrative. Confirm exact paths against the live API docs before integrating.

How much does the Zenserp API actually cost?

Verify on docs

Zenserp publishes an API, but per-tier gating wasn't extracted automatically.

  • Most likely scenario: API access is either included in all paid plans, or it's gated to higher tiers and we need to verify on the live docs page.
  • Until verified, treat the question "which plan unlocks the API" as open. Don't budget on the assumption it's free with the cheapest paid plan.

API at a glance

API docs
zenserp.com
Auth method
api-key
SDK languages
—
OpenAPI spec
yes
Webhooks
—
Structured outputs
—

What you can build with the Zenserp API

Three personas, three different shapes of build. Pick the row that matches how you actually ship.

SOLO DEV / FOUNDER

Glue Zenserp into your daily workflow

  • Pull a digest of ranking changes into your morning Slack
  • Trigger a one-off backfill when something looks off
  • Pipe data into your own SQLite for ad-hoc queries
Effort: A weekend, one Node or Python script
AGENCY / CONSULTANT

Sell Zenserp reporting at scale

  • White-label Zenserp data into client-branded dashboards
  • Run scheduled multi-account reports without logging into the Zenserp UI
  • Cross-reference with the rest of the client's stack (CRM, analytics, ad spend)
Effort: 1-2 weeks, hits multi-tenant auth quickly
IN-HOUSE ENGINEER

Production pipelines for Zenserp

  • Real-time sync into your warehouse on a cron
  • Custom alerts the dashboard's built-in alerting can't express
  • Backfill + idempotency handling for Zenserp data older than the dashboard exposes
Effort: Multi-week project, expect rate-limit tuning

Quickstart template

# Starter template — endpoint paths and SDK package names come from
# the Zenserp API docs: https://zenserp.com/

curl -X GET "https://zenserp.com/<your-endpoint>" \
  -H "Authorization: Bearer $YOUR_API_KEY" \
  -H "Accept: application/json" | jq .

Template only. Endpoint paths, exact base URL, and auth header format come from zenserp.com.

Limits and gotchas

  • OpenAPI is published — auto-generated clients work out of the box. Saves writing wrappers by hand.
  • No official SDK detected. Plan on hitting the API directly with your HTTP client of choice.
  • Rate limits: always read the docs page before scaling — the published limit is usually lower than the practical one and overages can be expensive.
4/10

Agent-readiness verdict

Avoid for agent workflows. Zenserp has documented APIs and an OpenAPI spec, but lacks any MCP server, SDKs, or native integrations with Claude or ChatGPT. You'll need custom parsing and HTTP calls to use this in an agentic loop.

Public API with docsOpenAPI/Swagger spec published

Zenserp API FAQ

Does Zenserp have a public API?+
Yes — REST API at zenserp.com, auth via api-key.
What auth does the Zenserp API use?+
API key in a header — simplest to integrate, no OAuth dance.
Is there an OpenAPI / Swagger spec I can auto-generate clients from?+
Yes — at zenserp.com/openapi.json.

Sources

Joonas Rotko
Joonas RotkoAuthor & Founder of That Marketing Buddy

10+ years in digital marketing. I review marketing software for AI-stack fit: real pricing, MCP and API support, and how cleanly each tool drops into an AI agent workflow, cross-checked against verified data and real user feedback.

About meHow I review

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