Hermoso is a marketing MCP server: 922+ tools over one OAuth’d endpoint that let an agent research the ads already running in a market, generate finished image and video ads, publish them, and build the paid campaigns behind them. Claude reaches all of it through one connection. This page covers one slice of that: what Claude can actually do on Threads, and what Threads will not let it do.
Connect Hermoso to Claude
- Copy the connector URL.
https://app.hermoso.ai/mcp - Claude → Customize → Connectors → ＋ Add → Add custom connector. Name it Hermoso and paste the URL.
- Connect and approve. Sign in with your Hermoso account on the consent page. There is no key to paste. The connector signs in with OAuth and mints its own.
- Ask Claude for something. “Pull my three closest competitors’ longest-running ads and remix the best hook into a 9:16 video,” or “post this render to the channel.” The agent picks the tools; you approve the spend.
Claude and ChatGPT are the two clients where nothing is pasted: the hosted connector runs a full OAuth handshake with PKCE and dynamic client registration, and the key it mints is scoped to the profile you approved it against. That scope is pinned on the server and never read off the request.
Then connect Threads itself, once, under Settings → Connectors in Hermoso. That is an OAuth consent screen, so it is the one step that needs a browser. Everything after it is a tool call.
The Threads tools Claude gets
post_to_meta: publishes text, an image or a video withtarget: "threads", optionally geotagged.schedule_post: queues it alongside every other channel.list_threads_posts / threads_insights: what you have posted, and how each one did.list_threads_replies / reply_to_thread / hide_thread_reply: read the replies, answer as the brand, hide what does not belong.list_threads_mentions: who is talking about you.search_threads_keyword / search_threads_locations: keyword search and the location ids a geotag needs.delete_thread: removes a post.
Threads is the channel where Hermoso goes furthest past publishing. Beyond posting there is a full read-and-respond surface (replies, mentions, keyword search and per-post insights), which makes it usable as a listening channel as well as an outlet. Note that Threads is a separate OAuth grant from Facebook even though it shares the Page.
Threads limits worth knowing before you automate anything
| Text | A Threads post is capped at 500 characters, the tightest here apart from X. It is enforced when the post is created or queued, so an overlong post is refused while you are still there to fix it instead of being silently cut on the way out. |
|---|---|
| Visibility | Public only. “Threads has no unlisted, private or draft post.” A Threads post exists publicly or not at all. |
| Carousel | 2 to 20 slides, images and video mixed. Both bounds are Meta’s own words, quoted in the table that enforces them: “Carousels must have at least 2” items, and “no more than 20 total images, videos, or a mix of the two.” That makes Threads the most generous mixed-media carousel of any channel here. |
| Which account | pageId. The same connected Page identity carries Facebook, Instagram and Threads. |
Try it in Claude
Ask for it in ordinary language. These are plain sentences, not a DSL:
“Write me three Threads posts under 500 characters from the angle in that last ad, post the best one, and show me the replies in an hour.”
That walks get_brand → generate_text → post_to_meta (target: "threads") → list_threads_replies. Every tool call happens inside the conversation, so you see the Page, the board or the caption before anything publishes, and you can stop it by saying so.
Claude on Threads: the part that bites
Claude is a good fit for the half of Threads that is not publishing. Mentions, replies and keyword search all come back as tool results you can read and answer in the same thread of conversation, so “see who is talking about us and draft replies” is a single ask. Keep an eye on the 500-character cap; a caption written for Instagram will not fit.
Claude Desktop uses the same Connectors flow as claude.ai, so there is no separate desktop setup.
Research Threads before you post
search_threads searches public Threads by keyword through the research surface, and search_threads_keyword does the same through your connected Threads account. There is no Threads ad library, because there are no Threads ads to archive.
The paid half
There is no Threads ads product in Hermoso, and it would be wrong to imply one. Threads here is an organic channel: publish, read, reply, measure. The paid tools cover Meta (Facebook and Instagram), Google Ads, Microsoft Advertising, Reddit Ads, LinkedIn, Pinterest, X Ads, TikTok Ads, Snapchat Ads, ChatGPT Ads, Apple Search Ads and AppLovin Ads.
What Claude cannot do on its own
An agent with a budget is only useful if the blast radius is bounded, so the fence is in the server rather than in a prompt. Every ad campaign, ad set, ad group and ad is created paused, and the status switches that arm real money refuse to run without an explicit confirmation flag. Every render is quoted first (hermoso_capabilities publishes each model’s exact credit cost before anything spends). Credits are reserved before the first provider call and settled at the exact cost afterwards, so a failed dispatch refunds rather than leaving you billed for nothing. Deletes are confirm-gated too, and every campaign tree is read back from the ad platform before your agent tells you what it built.
One step is deliberately not headless: linking an account is an OAuth consent screen, so you connect the channel once in a browser. Everything after that is a tool call.
The rest of the matrix
From Claude, post to: Facebook · Instagram · TikTok · YouTube · X · LinkedIn · Pinterest · Bluesky · Telegram. Or see everything Claude can publish to.
Post to Threads from: ChatGPT · Claude Code · Cursor · Codex · Cline · OpenClaw · Grok Bot · Hermes · Gemini CLI · Perplexity · Le Chat · Claude Cowork · Perplexity Computer · Paperclip · AI marketing in Claude
Frequently asked questions
Can Claude post to Threads?
Yes, through Hermoso's MCP server. In Claude, add https://app.hermoso.ai/mcp as a custom connector and approve it with your Hermoso account. There is no key to paste. Claude then has 922+ tools, including the ones that publish to Threads, plus the ones that research the ads already running in your market and render the creative in the first place.
How do I connect Threads to Claude?
Two steps, once each. In Claude, add https://app.hermoso.ai/mcp as a custom connector and approve it with your Hermoso account. There is no key to paste. Then connect Threads inside Hermoso under Settings → Connectors, which is an OAuth consent screen in a browser. After that Claude publishes to Threads as an ordinary tool call.
Can Claude post privately or as a draft to Threads?
No. Threads has no unlisted, private or draft post; a Threads post is public or it does not exist. Hermoso refuses a visibility Threads cannot honour at the moment you ask for it, rather than quietly publishing something weaker.
Can Claude schedule a Threads post for later?
Yes. schedule_post queues it on one calendar shared with every other channel, with a per-channel caption if the copy should differ, and list_scheduled and cancel_scheduled read and pull it back. Threads is one of the eleven channels that queue.
What is the Threads caption limit when posting from Claude?
A Threads post is capped at 500 characters, the tightest of any channel here apart from X. Hermoso enforces it when the post is created or queued, so Claude is told immediately rather than failing later when nobody is watching.
What does it cost to post to Threads from Claude?
Publishing to Threads costs no credits; Meta charges nothing per API call. Credits are spent on generating the creative. Plans are $29, $69 and $149 a month for 1,200, 3,000 and 7,000 credits, and every feature is on every plan including Free. The only exception is enterprise SSO.
Start free with 30 credits at signup and 250+ more to earn. Every feature is on every plan. Credits are spent only on AI models and Ad Spy research; posting, scheduling, ads management and analytics are free.
Start free → See pricing