MCP for AI app builders

Give AI app builders real product evidence before they generate UI.

Research shipped screens, flows, patterns, and microcopy inside the build conversation.

Our mission: help AI agents and product teams ship with real product evidence.

Connect Gummble MCP Find your builder

Things 3 iOS onboarding screen from the Gummble catalog

CATALOG REFERENCE · THINGS 3 IOS

RESEARCH TRACEread-only

search patterns

choose a family

compare references

deconstruct before build

cite decisions

adapt, do not copy

300,000+

UI screenshots

21,000+

product flows

read-only tools

OAuth

protected access

Platform paths

One endpoint. Different connector surfaces.

Each setup follows the platform's documented custom MCP route. These are not marketplace or partnership claims.

Compatibility receipt gate

Official setup path documented. Clean-account Gummble OAuth, 14-tool discovery, useful-call, and reconnect receipts remain the publication gate for a tested claim.

Replit

Custom MCP path

Build a working app with Agent after researching comparable UI.

Setup summary

Integrations, MCP Servers for Replit Agent, Add MCP server, then enter the Gummble endpoint and complete OAuth.

https://mcp.gummble.com/mcp

Open Replit MCP guide Verify Replit MCP docs

Lovable

Custom MCP path

Bring screen and microcopy references into the build conversation.

Setup summary

Connectors, All, Custom MCP, then add the Gummble URL with OAuth and authorize your personal connection.

https://mcp.gummble.com/mcp

Open Lovable MCP guide Verify Lovable MCP docs

v0

Custom MCP path

Ground generation in real product patterns before code is produced.

Setup summary

Choose Add MCP from the prompt or MCP Connections, add a custom server, select OAuth, and sign in to Gummble.

https://mcp.gummble.com/mcp

Open v0 MCP guide Verify v0 MCP docs

Bolt

Custom MCP path

Research the flow and copy before building the project UI.

Setup summary

Open Connectors, Manage connectors, Custom MCP server, then use HTTP transport and MCP OAuth.

https://mcp.gummble.com/mcp

Open Bolt MCP guide Verify Bolt MCP docs

Cursor

Custom MCP path

Pair product evidence with your codebase and design-system context.

Setup summary

Add the Gummble remote URL in Cursor MCP settings or mcp.json, then complete browser authorization.

https://mcp.gummble.com/mcp

Open Cursor MCP guide Verify Cursor MCP docs

Windsurf / Devin Desktop

Custom MCP path

Let Cascade research patterns and flows while it works in the repo.

Setup summary

Open Cascade MCP Servers or the JSON config, add Gummble as a remote server, and follow the OAuth prompt.

https://mcp.gummble.com/mcp

Open Windsurf / Devin Desktop MCP guide Verify Windsurf / Devin Desktop MCP docs

Copy-paste workflows

Prompt for research, then prompt for UI.

A useful Gummble session shows its references and explains what to adapt before the builder generates a component.

Onboarding

“Use Gummble to compare onboarding flows from three successful productivity apps. Cite the references, explain the pacing, then build a four-step flow for our product.”

gummble_search_flows

Paywall

“Use Gummble to find paywall pattern families and five real screens with annual-plan framing. Deconstruct hierarchy and trust cues before generating our upgrade screen.”

gummble_search_patterns + gummble_search_screens

Empty state

“Use Gummble to find empty-state microcopy from finance products. Cite the source examples, identify the recovery action, then write three options for our no-transactions state.”

gummble_search_microcopy

Purchase fit

Pay for the evidence layer you actually need.

Choose Browse

When the job is full-library research, collections, downloads, and MCP access. It starts at $9.99/month.

Choose Pro

Only when the workflow also needs Figma export, advanced search, or AI features.

Compare plans Open MCP setup

Trust contract

What we will claim, and what we will not.

Documented

A platform currently publishes a custom remote MCP setup path.

Receipt pending

A Gummble-specific clean-account compatibility run is still required.

No implied partnership

Custom MCP support is not a marketplace listing or endorsement.

Read-only scope

Gummble searches references and cannot modify the generated project.

Common questions.

The concise version of Gummble's platform, runtime, plan, and permission boundaries.

Is Gummble built into these AI app builders?

No. This page documents each client's custom MCP connection path. It does not claim a native integration, marketplace listing, endorsement, or partnership.

Has every platform path been tested with a clean account?

The setup paths are based on each platform's current official documentation. Gummble publishes a client-specific compatibility claim only after a clean-account OAuth, tool discovery, useful-call, and reconnect receipt passes.

Does an app generated by v0 or Lovable call Gummble at runtime?

No. In these workflows, Gummble supplies build-time research context inside the AI conversation. The generated application does not inherit the MCP connection.

Which Gummble plan includes MCP?

Every current paid plan includes MCP. Browse starts at $9.99/month and is the lowest-cost fit when you need the full library and MCP research.

Can Gummble change my code or project?

No. Gummble exposes 14 read-only search and reference tools. It has no write or destructive project tools.

Need the full tool list or OAuth details? Read the Gummble MCP overview.

One endpoint. Different connector surfaces.

Each setup follows the platform's documented custom MCP route. These are not marketplace or partnership claims.

Compatibility receipt gate

Official setup path documented. Clean-account Gummble OAuth, 14-tool discovery, useful-call, and reconnect receipts remain the publication gate for a tested claim.