Best GEO & content optimization tools — API

The ranking

1. ★ Editor’s pick

   #1PA

   Peak AnswerVerified

   Weekly AI answer measurement plus the articles, placements and technical fixes to close the gaps it finds.

   Best forAPI access is listed as supported on all paid plans and an account API key can be used as a bearer token, though the site publishes no REST endpoint reference beyond the MCP docs.

   Price

   From $49/month

   Checked

   Oct 7, 2026

   API: Yes — API access is listed as supported on all paid plans and an account API key can be used as a bearer token, though the site publishes no REST endpoint reference beyond the MCP docs.“**API access**”Supported on all paid plans list, third bullet · checked 2026-10-07

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2. #2DI

   DistribbVerified

   AI SEO agent that researches, writes and publishes content, earns backlinks and tracks AI-engine citations.

   Best forSaaS founders, agencies, and developer-led growth teams who don't want to run SEO, content writing, link outreach, and AI-visibility tracking as four separate vendor relationships.

   Price

   From $97/month

   Checked

   Sep 25, 2026

   API: Yes — A documented REST API v1 with bearer-token auth covers projects, articles, publishing, backlinks, Search Console and AI visibility, with per-endpoint rate limits.“All API requests require a Bearer token in the **Authorization** header. Your API key is available in Integrations → AI Agents.”Authentication section · checked 2026-09-25

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3. #3RA

   Rankability

   AI search visibility tracking, site auditing and content optimisation for marketing agencies.

   Best forAgencies and content teams needing all-in-one content creation, optimization and wide AI-platform tracking

   Price

   From $99/month

   Checked

   Sep 9, 2026

   API: Yes — API access is included on all three plans, Starter upward.“API access”Plan comparison table, 'Integrations and automation' section, API access row

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4. Featured

   Your tool here. Featured puts it at the top of the homepage and its category.

   Get featured, $39 a month →
5. #4RA

   Rankfender

   AI visibility monitoring across seven AI systems with an article pipeline that publishes to your CMS.

   Best forMarketing teams that want broad LLM tracking bundled with content production from a 2024-founded vendor.

   Price

   From $89/month

   Checked

   Oct 11, 2026

   API: Yes — A REST API plus webhooks is documented for pulling data into your own stack, and the plan comparison marks 'Webhooks & custom API' as included on every tier including Essential.“Connect Rankfender to your stack with our REST API, webhooks, and native integrations.”Documentation home, 'API & Integrations' card · checked 2026-10-11

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6. #5CO

   Cognizo

   AEO platform tracking brand visibility in AI answers, with content generation and auto-publishing.

   Best forMarketing teams and agencies that want AI-visibility monitoring bundled with real content production and are comfortable booking a demo.

   Price

   From $499/month

   Checked

   Sep 21, 2026

   API: Yes — A REST API is ticked on all three plans and documented for dashboards, ETL and scheduled jobs with per-workspace keys.“the API at https://core.cognizo.ai/api/v2/ is what you'd use for dashboards, ETL pipelines, and scheduled jobs”FAQ, 'What is the difference between the Cognizo MCP server and the Cognizo API?' · checked 2026-09-21

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7. #6OM

   Omnia

   AI visibility tracking with an agent that drafts, publishes and pitches the fixes.

   Best forAPI Access is ticked in all three columns of the comparison table and a REST reference is published, so data can be pulled from the entry plan upward.

   Price

   From €79/month (about $89)

   Checked

   Sep 28, 2026

   API: Yes — API Access is ticked in all three columns of the comparison table and a REST reference is published, so data can be pulled from the entry plan upward.“The Omnia API lets you create your scripts and automations that integrate with your Omnia workspace.”API Overview page, opening paragraph · checked 2026-09-28

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8. #7RA

   RadarKit

   Tracks brand visibility in AI answers via real chat interfaces, with agents for content, outreach and Reddit.

   Best forSmall marketing teams and solo SEO practitioners who want a budget-priced AI-visibility tracker across six answer surfaces bundled with content, outreach, Reddit and chat agents.

   Price

   From $29/month

   Checked

   Sep 30, 2026

   API: Yes — API access is marked Yes in the Reporting & data section for all four plans, including the cheapest Lite tier, with no add-on charge stated.“MCP & API access”Plan comparison table, Reporting & data section, 'MCP & API access' row · checked 2026-09-30

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9. #8GE

   geoSurge

   Tracks how ChatGPT, Claude and Gemini describe your brand, free on your own AI subscriptions.

   Best forTechnical SEO and AI teams who want free BYOK access to brand-visibility data across ChatGPT, Claude and Gemini with full REST API and MCP access included from day one.

   Price

   Free

   Checked

   Sep 24, 2026

   API: Yes — A REST API is ticked for both Free and Enterprise columns, and the docs publish a hosted API reference rather than gating it behind a sales call.“REST API | ✓ | ✓ | Top tiers only”Comparison table, Data access section, 'REST API' row · checked 2026-09-24

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10. #9RP

    Rank Prompt

    AI visibility platform that tracks brand mentions and citations across six answer engines, with content and audits.

    Best forA solo marketer or developer who wants one dashboard across ChatGPT, Perplexity, Google AI Mode, Claude, Gemini and Grok, with API access and a hosted MCP server available from the $49/month Starter tier rather than gated behind a custom enterprise plan.

    Price

    Free, then $49/month

    Checked

    Oct 12, 2026

    API: Yes — A documented public REST /v1 API is open even on the free plan, with monthly request ceilings rising from 10,000 on Starter.“The API and the MCP server are open on this plan too, so your own agent can work your account.”Free plan card · checked 2026-10-12

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11. #10RA

    Rankshift

    Credit-metered AI visibility, citation and crawler tracking with unlimited projects and seats.

    Best forA REST API with per-project bearer tokens is listed on all three self-serve plans, though the citation page instead says API access starts on Professional, so the entry tier is contradicted.

    Price

    From €77/month (about $86)

    Checked

    Sep 30, 2026

    API: Yes — A REST API with per-project bearer tokens is listed on all three self-serve plans, though the citation page instead says API access starts on Professional, so the entry tier is contradicted.“Integrate with our REST API. Discover the tables available in your project, then query measures and dimensions for your own dashboards, scripts and workflows.”Section 'REST API' · checked 2026-09-30

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12. #11SE

    Searchable

    AI search visibility tracking, site audits and content generation for brands and agencies.

    Best foragencies and brands that want AI visibility tracking, technical AI-crawler audits and AI-optimized content generation in one tool

    Price

    From $125/month

    Checked

    Oct 13, 2026

    API: Yes — A REST API with bearer keys is an included row on every published plan including entry-level Pro, though keys cannot be made on the free plan the docs mention.“API access requires a paid Searchable plan — API keys can't be created on the Free plan.”Overview, info callout · checked 2026-10-13

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13. #12CA

    Canonry

    AI search visibility tracking plus AEO delivery, as an open-source platform, agency products and managed service.

    Best fordeveloper-led or privacy-conscious teams and agencies that want a free, self-hosted AEO stack they can drive from Claude Code or Codex

    Price

    Free

    Checked

    Oct 3, 2026

    API: Yes — The self-hosted platform exposes a versioned REST API alongside CLI and webhooks, with the dashboard described as just another client of the same project API.“Other agents can use CLI commands with JSON output, a versioned REST API, or MCP tools loaded as needed.”FAQ, 'How does my agent connect?' answer · checked 2026-10-03

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14. #13SA

    Sleepwalker AI

    Pay-as-you-go AI visibility and content intelligence runs via Console, API, MCP and CLI.

    Best fordevelopers and AI-agent-building teams

    Price

    From €5/month (about $5.60)

    Checked

    Oct 9, 2026

    API: Yes — A documented REST API with scoped bearer keys creates and polls runs and reads results, limited to 300 authenticated requests an hour by default.“Clean JSON in and out. Scoped keys, retry-safe writes, and saved results your own systems can read later.”Section 02 / access, API card body text · checked 2026-10-09

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15. #14BR

    BrightEdge

    Enterprise SEO and AEO platform for tracking and improving brand visibility across Google and AI search engines.

    Best forEnterprise SEO teams tracking rankings and AI search visibility across markets

    Price

    On quote

    Checked

    Sep 11, 2026

    API: Yes — BrightEdge Connect is a REST API used to push rank, search and social data into analytics and BI stacks; packaging by tier is not published.“BrightEdge Connect is a REST-based API that provides the 1,500+ brands that are actively using the API with a way to measure the effects and correlation between one indicator”Opening description of BrightEdge Connect · checked 2026-09-11

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16. #15FR

    FraseVerified

    Content platform that researches, drafts, optimises and publishes pages, then tracks AI citations.

    Best forcontent and SEO teams or agencies that want one subscription covering content briefs, AI-assisted drafting and daily AI citation tracking

    Price

    From $49/month

    Checked

    Oct 3, 2026

    API: Yes — A REST API with JSON, key-header auth and HMAC-signed webhooks is on every plan, including the entry tier, with request ceilings of 5,000/20,000/50,000 per month by tier.“API access is available on every Frase plan, including Starter. Your API key lives in your account settings, and the same key works across the API's content, research, SERP, audit, and AI Visibility endpoints.”Questions about the Frase API, "Which plans include API access?" · checked 2026-10-03

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17. #16MO

    Morningscore

    All-in-one SEO tool with ChatGPT prompt tracking, Google AI Overviews tracking and a GEO visibility score.

    Best forSmall agencies and small-to-midsize marketing teams

    Price

    From $69/month

    Checked

    Sep 27, 2026

    API: Yes — A documented REST API is included on every plan at 2 requests per second, covering keywords, links, health and article generation, though some AI endpoints are still listed as coming.“Full API in all plans”'Included in every plan' feature grid, AI + AUTOMATION column · checked 2026-09-27

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18. #17PR

    Promptwatch

    AI search visibility tracking with crawler logs and content agents that publish to your CMS.

    Best forMarketing teams and brands that already run traditional SEO

    Price

    From $95/month

    Checked

    Sep 30, 2026

    API: Yes — A documented REST API with v1 and v2 surfaces, X-API-Key authentication and published rate limits is included from the entry Essential plan, not sold as an add-on.“MCP and API access”Brands plan cards, Essential card feature list · checked 2026-09-30

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19. #18WR

    Writesonic

    AI search visibility tracking plus AI article writing, site audits and an Action Center.

    Best forMarketing teams and brands that already run SEO/content operations

    Price

    From $99/month

    Checked

    Sep 2, 2026

    API: Yes — REST GEO API keyed by X-API-KEY, activated from an API Dashboard toggle in the account.“All API requests require an `X-API-KEY` header with your Writesonic API key.”Authentication, opening line · checked 2026-09-02

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