SimilarWeb Digital Rank API for AI agents
SimilarWeb's Digital Rank API gives access to global website ranking data for competitive benchmarking. Marketers and analysts use it to see how a site's traffic rank compares to competitors. Connect it once through Arc0, and your agent, or Claude, ChatGPT and Cursor, can use it through one MCP endpoint, limited to what each user approved.
What agents do in SimilarWeb Digital Rank API.
Check a competitor's rank
Pull a site's Similar Rank position to compare its estimated traffic against competitors.
Pull top sites for a category
Retrieve the top-ranked sites in a category or vertical for a competitive landscape review.
Verify quota before a bulk pull
Check subscription status and remaining quota before running a large batch of rank lookups.
3 SimilarWeb Digital Rank API actions, graded by risk.
Every SimilarWeb Digital Rank API action is tagged read, write or destructive, so one policy covers the whole app and new actions inherit the right default.
read
3Look things up. Allowed by default.
- similarweb_digital_rank_api.get_subscription_statusGet Subscription Status
- similarweb_digital_rank_api.get_rank_tracker_describeGet Rank Tracker Campaign Metadata
- similarweb_digital_rank_api.get_similar_rank_top_sitesGet Similar Rank Top Sites
write
0Create and change things. Allow, or ask the user first.
- No write actions.
destructive
0Delete, cancel or archive. Ask first, or deny outright.
- No destructive actions.
SimilarWeb Digital Rank API in three steps.
- 01Your users connect SimilarWeb Digital Rank APIThey add their SimilarWeb Digital Rank API api key on Arc0 Connect, under your brand. It goes straight into the vault.
- 02You set the rulesReads run, and writes like “updates” can wait for the user to approve.
- 03Any agent can actYour agent calls SimilarWeb Digital Rank API through the Arc0 SDK or MCP, and so can Claude, ChatGPT and Cursor. Every call lands on the audit log.
await arc0.policies.set('similarweb_digital_rank_api', { read: 'allow', write: 'ask', destructive: 'deny', }) # Claude Code: the same connection, one URL $ claude mcp add --transport http arc0 \ https://mcp.arc0.ai/u/u_8f2
How SimilarWeb Digital Rank API connects.
Users add their SimilarWeb Digital Rank API api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.
The same SimilarWeb Digital Rank API connection serves your agent over MCP and your own backend over REST and the proxy, so a user connects once. How Arc0 handles credentials →
- AUTH
- API key
- CREDENTIALS
- Per-tenant encrypted vault
- MODEL SEES
- Results only, never credentials
- AUDIT LOG
- Every call, on every plan
Use SimilarWeb Digital Rank API from any agent.
SimilarWeb Digital Rank API and Arc0, answered.
Can I use SimilarWeb Digital Rank API with Claude, ChatGPT or Cursor?
Yes. Connect SimilarWeb Digital Rank API to Arc0 once, then add your Arc0 MCP URL to Claude, ChatGPT, Cursor, Claude Code or any other remote-MCP client. Each assistant only gets the SimilarWeb Digital Rank API actions you allow.
How do users connect SimilarWeb Digital Rank API?
Users add their SimilarWeb Digital Rank API api key on Arc0 Connect. It is encrypted in the vault, never shown to the model, and each user can rotate or revoke it at any time.
Which SimilarWeb Digital Rank API actions can my agent take?
3 in total: 3 read, 0 write and 0 destructive. Your policies decide which of them each agent may call.
Can I make my agent read-only in SimilarWeb Digital Rank API?
Yes. Allow read actions and deny writes in the SimilarWeb Digital Rank API policy. Your agent can still look things up, and any write it attempts is blocked and logged.
Can my own backend call SimilarWeb Digital Rank API too?
Yes. The same SimilarWeb Digital Rank API connection is available over REST and through the Arc0 proxy, so your product and your agent share one connection per user.
Plug SimilarWeb Digital Rank API into your agent.
Your users connect SimilarWeb Digital Rank API once, under your brand. Your agent gets 3 actions behind your policies, with every call on the record.
Free to build · MCP + REST · Audit log on every plan