Theneo review

Theneo covers more API formats than most tools here: REST, AsyncAPI, SOAP, GraphQL and gRPC. Its free Starter plan includes 1 public project, 2 private projects, up to 20 team members, an advanced API explorer, automated changelog generation, project analytics and reader feedback, plus up to 100 AI search results for readers. Business costs $120 a month per workspace billed annually or $150 monthly and adds up to 7 projects, 50 team members, unlimited AI search and TheneoAI, custom branding and SEO, a custom domain and one developer portal. Growth at $400 a month billed annually adds custom CSS, custom AI prompts, up to 20 developer portals, IP allowlisting and Slack or Teams support. Enterprise adds self-hosting and SAML SSO. The free plan suits evaluation, but a branded public docs site needs Business.

Who it is for

Teams documenting REST, GraphQL, SOAP and gRPC APIs with AI help

Price

Free Starter plan; Business $120 per month per workspace billed annually or $150 monthly.

$120 /month/workspace
Quoted from the vendor pricing page on November 12, 2026.

Key features

• Supported API formats: REST, AsyncAPI, SOAP, GraphQL and gRPC
• Automated changelog generation and an API explorer on every plan
• Free Starter plan with up to 20 team members and 2 private projects
• Business adds a custom domain, custom branding and one developer portal
• Growth adds custom CSS, up to 20 developer portals and IP allowlisting

Strengths and weaknesses

• Strength: Free plan allows up to 20 team members
• Strength: Business includes up to 50 team members per workspace
• Strength: Supports SOAP and gRPC alongside REST and GraphQL
• Weakness: Custom domain needs Business at $120 a month billed annually
• Weakness: Free plan allows 1 public project
• Weakness: Self-hosting and SAML SSO need Enterprise

Key facts

• Free plan: Yes, Starter with up to 20 team members
• Paid plans: Business, Growth and Enterprise
• Team members: 20 Starter, 50 Business, 100 Growth
• API endpoints: Up to 2,000 on Starter

Where it ranks

Theneo is No. 9 in our Best API Documentation Tools verdict.