Elva vs Sider Code: Features, Pricing & Which Is Better (2026)

A side-by-side comparison of Elva and Sider Code — features, pricing, and ideal use cases — to help you decide which AI tool fits your workflow.

Elva

Theneo

Freemium

Reads your repositories to discover every API, scores and governs them, then exposes them to developers and AI agents via hosted MCP servers.

Spec-Free API Discovery: Elva scans repository code directly to find endpoints and generates OpenAPI 3.1 as output, so no existing spec is needed to start.
Endpoint Scoring: Every collection is graded on design, developer experience, AI readiness, security and performance, with the weakest collection surfaced first.
AI Fix Pass: A one-click agent writes missing descriptions from code, types response schemas and documents auth, then rescores the collection.
API Contracts: Per-audience contracts pin the exact endpoints and fields a partner, internal team, public developer or MCP client receives, excluding PII and internal fields.
Breaking Change Enforcement: Each commit is diffed against published contracts, showing the schema diff, affected consumers and tools, and blocking publish by policy.
Hosted MCP Servers: Contracts generate MCP servers hosted behind Elva's gateway with OAuth2, scoped keys, per-tool authorization and exportable call logs.
MCP Playground and Agent Feedback: Test the server with a live model, then read the complaints agents file about confusing or failing tools, scored back into the catalog.
Multi-Target Publishing: One approved contract ships as OpenAPI spec, Theneo docs, MCP server, Postman collection and a typed TypeScript SDK in sync.

API Inventory Audit: Discover undocumented or forgotten endpoints across a large codebase and get a ranked list of what to fix first.
Agent Enablement: Expose an internal service to Claude, Cursor or ChatGPT as a governed MCP server instead of hand-writing tool wrappers.
Partner Integration Safety: Publish a restricted contract to an external partner and have Elva block commits that would break their integration.
PII Scoping: Keep customer emails and internal ops annotations out of a public or agent-facing surface while the same endpoints serve them internally.
Zombie Endpoint Retirement: Prove no active consumer references an endpoint before deleting it, using contract and call-log evidence.
Enterprise Security Review: Satisfy SOC 2, ISO 27001 and GDPR questions and wire agent access into an existing SSO and SCIM identity provider.
Documentation Drift Control: Keep docs, SDKs and Postman collections regenerated from code on every merge instead of maintained by hand.

Sider AI

Freemium

Browser feature that rewrites any webpage from a plain-language instruction and remembers the customization for future visits.

Plain-Language Page Editing: Describe the change you want in your own words and Sider Code applies it to the live page without scripts or DOM inspection.
Persistent Per-Site Customizations: Saved changes reapply automatically the next time you visit that site instead of vanishing on reload.
Structural Rewrites, Not Just Blocking: Beyond hiding elements, it can restructure content, add new actions, and transform how a page works.
Page-Content Understanding: Combines comprehension with modification so it can summarize, extract, and explain page content in the same operation.
Comment Thread Condensation: Turns hundreds of Reddit or Hacker News comments into an overview or a structured debate view.
Reading Mode Generation: Converts scattered social threads and long chapters into clean articles with tables of contents and comfortable layouts.
Distraction Removal: Strips elements like the YouTube Shorts shelf or applies dark mode to bright document editors.
Bundled With Sider Suite: Ships alongside Sider Chat's frontier-model access, Claw browser automation, and Create image, video, and slide generation.

Research Reading: Condensing long comment threads into the key viewpoints before deciding whether the discussion is worth reading in full.
Long-Session Comfort: Applying dark mode or a calmer reading layout to writing tools used for hours at a time.
Focus Enforcement: Permanently removing recommendation shelves and distraction surfaces from sites you use daily.
Workflow Adaptation: Reorganizing an internal or third-party web tool so its layout matches how you actually work rather than the default.
Content Extraction: Pulling structured information out of a page and reshaping it into a more usable view.
Accessibility Adjustments: Reshaping cluttered pages into cleaner, easier-to-navigate layouts without waiting on the site owner.