Sprites MCP · Reddit Ads MCP server · Google Antigravity

Reddit Ads MCP for Google Antigravity: setup in two minutes

Add https://mcp.sprites.ai/mcp as a custom MCP connector in Google Antigravity, sign in to Sprites, and Google Antigravity can read your Reddit Ads account and propose changes to it. Setup takes about two minutes and needs no API key. Every write comes back as an approval before it touches the account.

MCP server URLhttps://mcp.sprites.ai/mcp

5 steps · about 2 minutes

Google AntigravitySprites connected

Which Reddit ad groups are actually converting?

Spritesanalyzerunning
SpritesRedditNeeds your approval
  • r/devops groupCPA $41 · 118 conv
  • r/sysadmin groupCPA $58 · 92 conv
  • r/programming groupCPA $412 · 4 conv
One ad group is 26% of spend, 1% of conversionsCut it

Add Sprites to Google Antigravity

Available on Antigravity 2.0, Antigravity IDE, Antigravity CLI and the Antigravity SDK. You need a Sprites account with Reddit Ads already connected — the connector acts on that connection, so Google Antigravity never handles a Reddit credential.

  1. Open the shared MCP config

    All four Antigravity surfaces read one file. In the IDE, click … at the top of the agent side panel, choose MCP Servers, then Manage MCP Servers, then View raw config. The file itself is ~/.gemini/config/mcp_config.json, or .agents/mcp_config.json inside a workspace.

    Antigravity IDE
    …MCP ServersManage MCP ServersView raw config
  2. Add Sprites with serverUrl

    Antigravity requires serverUrl for any remote connection. Its documentation is explicit that the url and httpUrl keys other clients use are not supported here, and an entry using them is skipped rather than reported.

    ~/.gemini/config/mcp_config.json
    {
      "mcpServers": {
        "sprites": {
          "serverUrl": "https://mcp.sprites.ai/mcp"
        }
      }
    }
  3. Sign in

    Antigravity registers itself with the Sprites authorization server automatically and completes the flow at its own callback. Save the file, reopen Manage MCP Servers, and connect.

    Spriteswants access on behalf of Antigravity
    • Read your connected ad accounts and site data
    • Draft campaigns, creatives and pages for your approval
    • Apply only the changes you approve
    AllowCancel
  4. Use it from any surface

    Because the configuration is shared, the CLI and the SDK pick up the same server with no second step. Name the surface you are on when you follow an instruction — the products differ even though the config does not.

Run the first prompt

Ask Google Antigravity this. It routes to a Sprites door, which reads your Reddit Ads account and answers — no account to name, no confirmation to give first.

  • With Sprites, which Reddit ad groups are converting and which are just clicking?
  • Ask Sprites which communities discuss the problem our product solves.
  • Use Sprites to rewrite our Reddit ad so it reads native to r/devops.
  • Have Sprites pause the Reddit ad groups with spend and no conversions this month.
  • With Sprites, launch a Reddit campaign across our top 8 communities at $60/day.

Reopen Manage MCP Servers; Sprites is listed with its tool count, and the same entry is live in the CLI.

What Google Antigravity can do with Reddit Ads

The same doors, whichever client you are in. One MCP configuration shared by the IDE, the CLI, the SDK and Antigravity 2.0, so the connector is added once and every surface has it.

Performance by ad group

CPA, CTR, leads and ROAS by campaign, ad group and ad. Give each community its own ad group and one expensive subreddit stops hiding inside a campaign average.

Find the right rooms

The subreddits where your problem is actually discussed, with the threads and phrasing to prove it, before you target them.

Copy that does not get downvoted

Ad text drafted in the register of the community it runs in, not lifted from the Google Ads account.

Cut the tourist traffic

Ad groups with clicks and no conversions, named with the spend attached.

Know what the audience says

Pain points and verbatim phrasing from the threads in your target communities, turned into hooks you can test.

Launch around a list

A campaign whose structure follows the community list rather than fighting it.

How approvals work here

Google Antigravity renders tool results as text, so a Reddit change comes back written out rather than as a card. The approval waits for you in Sprites — open it there and the same run continues. Nothing is applied until you approve it.

What it reads

  • Campaigns, ad groups, ads and community targeting
  • Spend, CTR, conversions, CPA, leads and ROAS
  • Performance by campaign, ad group and ad
  • Public discussion in candidate communities

What it can change

  • Create campaigns, ad groups and ads
  • Community targeting, budgets, schedules and status
  • Ad copy, drafted per community and approved before it runs

When it does not work in Google Antigravity

Three things go wrong in this client specifically, and each has a one-line fix.

The server is in the file but never appears.

It is almost certainly using url or httpUrl. Antigravity supports neither for remote servers; the key is serverUrl.

The IDE sees Sprites and the CLI does not.

A workspace .agents/mcp_config.json only applies inside that workspace. Put the entry in ~/.gemini/config/mcp_config.json to share it across surfaces.

Sign-in loops.

Antigravity completes OAuth at its own callback URL. Allow the browser redirect back to antigravity.google rather than cancelling it.

Reddit Ads and Google Antigravity: questions

Which URL do I paste into Google Antigravity?

https://mcp.sprites.ai/mcp. There is one endpoint and every client uses it — every OAuth grant is bound to exactly that address, so a variant of it will not be honoured.

Can Google Antigravity change my Reddit Ads account without asking?

Google Antigravity renders tool results as text, so a Reddit change comes back written out rather than as a card. The approval waits for you in Sprites — open it there and the same run continues. Nothing is applied until you approve it.

Do I need a Reddit Ads API key or developer token?

No. Reddit Ads is connected once inside Sprites through Reddit Ads, and the connector acts on that connection. Google Antigravity never sees a credential for it.

Why Google Antigravity for Reddit Ads specifically?

One MCP configuration shared by the IDE, the CLI, the SDK and Antigravity 2.0, so the connector is added once and every surface has it.

Is there an official Reddit Ads MCP server?

No. Reddit has not published an MCP server for its Ads API; only community wrappers exist, which you host and hold the credentials for yourself. Sprites is a hosted MCP server that reaches Reddit Ads alongside Google, Meta, LinkedIn and TikTok.

Can it target individual subreddits?

Yes. Ad groups are built with community targeting, and when each community gets its own ad group, CPA is read community by community — which matters, because cost varies widely from one subreddit to the next.

Keep going

The same Google Antigravity connector reaches every other channel — nothing else to add.

All Reddit guides

Reddit Ads, from Google Antigravity

Paste one URL, sign in once, and the next Reddit question you ask Google Antigravity gets answered from the live account.