Composio connects agents to a user's own SaaS via OAuth. UnifAPI delivers public web data with one API key. The two halves of agent integration.

Composio and UnifAPI are two halves of the agent-integration story, not competitors. Composio connects agents to data the end user owns — Gmail, Notion, Linear, Salesforce — via OAuth. UnifAPI connects agents to public web data — TikTok, Reddit, YouTube, search results, scraped pages — via one shared API key. Most production agents use both, in different lanes.

The two halves of agent data access

Agent integrations split cleanly into two categories. Personal data: things only the end user can authorize access to — their inbox, their CRM, their calendar. Public data: things anyone with a browser could read — posts, comments, search results, news.

Personal data needs OAuth per user, encrypted token storage, refresh logic, scope management, and a way to gracefully handle expired or revoked permissions. Public data needs none of that — it needs one key, one bill, and a clean shape.

How Composio works

Composio is the integration layer for the personal-data half. It maintains OAuth apps with hundreds of SaaS providers (Gmail, Slack, GitHub, Notion, Linear, HubSpot, Salesforce), brokers user consent flows, stores tokens, and exposes a normalized tool surface to the agent. Your agent doesn't see refresh-token logic — it sees a list of callable tools scoped to the user it's running for.

If your agent reads or writes inside a user's own accounts — drafting their emails, creating their Linear tickets, updating their CRM — Composio is built for that.

How UnifAPI works

UnifAPI is the integration layer for the public-data half. It maintains upstream clients for 14 public-web platforms (TikTok, LinkedIn, Instagram, YouTube, Twitter/X, Threads, Reddit, Bilibili, Weibo, Xiaohongshu, Kuaishou, Zhihu, Lemon8, PiPiXia) plus a search/scrape/news roadmap, normalizes their responses into one envelope, and exposes the catalog as both HTTP endpoints and MCP tools.

If your agent reads from the open web — pulling tweets about a topic, finding YouTube videos, scraping product pages, monitoring news — UnifAPI is built for that.

Side-by-side: use case by use case

"Draft an email reply summarizing the last 5 messages in this thread" → Composio. The data lives in the user's Gmail.

"Find what TikTok creators are saying about our product launch this week" → UnifAPI. The data is public.

"Create a Linear ticket from the support email I just got" → Composio.

"Pull the top 10 Reddit threads about a competitor and summarize sentiment" → UnifAPI.

"Look up the calendar invite the user sent yesterday" → Composio.

"Search Google News for mentions of our brand in the last 24 hours" → UnifAPI (search/news roadmap).

Using them together

Real agents typically need both. A go-to-market agent might use UnifAPI to monitor brand mentions on Reddit and TikTok, then use Composio to push relevant ones into the user's Linear board as tickets. A research agent might use UnifAPI to gather web evidence and Composio to file the findings into the user's Notion workspace.

There's no overlap. Pick Composio for the OAuth half, pick UnifAPI for the public-web half, and let them stay in their lanes.

Browse the UnifAPI catalog at unifapi.com/apis, see per-record pricing at unifapi.com/pricing, or wire the MCP server in three minutes at unifapi.com/mcp.