Add Stripe Link hosted MCP plugin

[staging-devin-ai-integration]

Summary

Add Stripe Link’s hosted HTTP MCP (https://mcp.link.com) to the curated plugin catalog. Authentication is handled by Devin’s server-side Link OAuth integration; the plugin contains no CLI command or credentials.

Verified the hosted MCP’s initialize and tools/list responses: it exposes product/merchant discovery and read-only financial sources, balances, transactions, and recurring charges.

The companion webapp PR supplies OAuth support, beta visibility, and the catalog pin update.

Validation: python3 scripts/validate.py --fix and python3 scripts/validate.py --fetch pass.

Link to Devin session: https://staging.itsdev.in/sessions/433f9a7bdf8940c2b35a7c7d2552ba28
Open in Devin Desktop: https://staging.itsdev.in/desktop/session/433f9a7bdf8940c2b35a7c7d2552ba28?variant=devin-insiders
Requested by: @samyok

---

Note

Devin errored when opening this Pull Request as samyok.
As a fallback, Devin opened this PR as itself.

---

Devin Review

Status	Commit
⚪ Not started	—

Run Devin Review

[staging-devin-ai-integration]

🤖 Devin AI Engineer

I'll be helping with this pull request! Here's what you should know:

✅ I will automatically:

• Address comments on this PR. Add '(aside)' to your comment to have me ignore it.
• Look at CI failures and help fix them

Note: I can only respond to comments from users who have write access to this repository.

⚙️ Control Options:

• Disable automatic comment, CI, and merge conflict monitoring

---

Original prompt from Samyok

Updated External/Stripe/LinkCLI/OAuthSecret in both staging and
dev.

Each JSON secret now contains:

• STRIPE_LINK_CLI_CLIENT_ID
• STRIPE_LINK_CLI_CLIENT_SECRET
• STRIPE_LINK_CLI_PUBLISHABLE_KEY

Your goal: create a pr that adds the link oauth mcp (NOT the cli) to the plugin marketplace in beta, more info: https://docs.stripe.com/agentic-commerce/link-cli/oauth

--action-model gpt-6-astra-max-priority