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

A side-by-side comparison of Elva and Prism — 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.

Freemium

A native macOS AI workspace with multi-provider chat, hosted models, an MCP registry, and @-tools.

Multi-Provider Chat: Use GPT-5.5, Claude Opus, Gemini, and local models and compare providers side by side in one workspace.
Prism Hosted: Access frontier models for reasoning, coding, and long-context work without bringing your own API key.
Quick AI: Summon any model from any macOS app without breaking your flow.
MCP Registry and @-Tools: Curated MCP servers with saved credentials and @-mention tools for file, quiz, and flash-card flows inside the thread.
Local Proxy: An OpenAI-compatible local proxy on paid plans routes external IDEs and CLIs like Claude Code through your configured models.
Native macOS Design: A single SwiftUI window for chat, tools, and history built specifically for Mac.

Comparing Models Side by Side: Test the same prompt across multiple providers and pick the best answer.
Key-Free Frontier Access: Use top hosted models through Prism Hosted without managing your own API keys.
In-App AI Anywhere: Trigger Quick AI from any Mac app to draft or answer without switching context.
Routing Coding CLIs: Point Claude Code and other CLIs at the local proxy to use Prism-configured models.
Tool-Augmented Chat: Use MCP servers and @-tools to run file, quiz, and flash-card workflows directly in chat.