Get an audit

Head to head · Auth oauth · October 2026 research run

Aembit vs Vercel Connect

Aembit scores 70.5 (BB) on agent readiness against Vercel Connect's 68.8 (B), and leads in 3 of 7 scored categories. Vercel Connect leads on transparency & trust. Both do auth oauth.

AembitAembit, Inc. · HTTP API BB70.5/100#147 of 841 Vercel ConnectVercel Inc. · HTTP API B68.8/100#195 of 841

Which one, for what

Aembit BB

Good for A security team that wants one policy and audit point between AI agents or workloads and the services they call, with credentials kept away from the agent.

Also in its favour

  • Agent-ready, a grade of BB or better
  • No incidents deducted, where Vercel Connect loses 3 points for them

Watch for

No rate limit figures in the reviewed documentation. The Edge API lists 429 responses without limits or Retry-After guidance

Vercel Connect B

Good for Teams already deploying on Vercel whose agents need user or app tokens for Slack, GitHub, Microsoft, Linear, Snowflake or an MCP server without storing provider secrets.

Ahead on

  • Transparency & trust, 77 against 60

Also in its favour

  • A hosted endpoint, with nothing to install

Watch for

Vercel's SLA says it does not apply to the APIs or CLI, so token requests carry no uptime commitment

Score by category

CategoryWeight this runAembitVercel ConnectEdge
Reliability16%206563Aembit +2
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28584Aembit +1
Agent ergonomics13%16.27275Vercel Connect +3
Security & auth14%17.58483Aembit +1
Payments & pricing10%12.54040even
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.88081Vercel Connect +1
Transparency & trust7%8.86077Vercel Connect +17
Negative events≤150-3
Total70.5 · BB68.8 · B

Facts side by side

FactAembitVercel Connect
KindHTTP APIHTTP API
VendorAembit, Inc.Vercel Inc.
Hosted endpointno (local only)https://api.vercel.com
TransportsHTTP, Streamable HTTPHTTP
AuthOAuth or keyOAuth or key
PricingFreemiumFreemium
x402nono
LicenceProprietary service under Aembit's terms of service. The Edge SDKs on GitHub are Apache-2.0Proprietary service under Vercel's Terms of Service and the Vercel Connect product terms. The @vercel/connect SDK and the Vercel CLI are Apache-2.0
Read-only variant documentednono
llms.txtyesyes
Last release2026-10-072026-10-06
Terms last updated2026-07-142026-06-01
Privacy policy last updated2026-05-052026-06-01
Customer content may train modelsnot found in the textyes, with an opt-out
Terms restrict automated accessnot found in the textnot found in the text
Terms restrict benchmarkingyesnot found in the text
Terms or service can change without noticeyesnot found in the text
Arbitration or class-action waivernot found in the textyes
Popularity27 npm/wk16k stars, 738k npm/wk

Verdicts

Aembit

Agents and workloads get short-lived credentials by attestation, and MCP clients sign in through OAuth 2.1 with policy checked on every request. Both APIs have public OpenAPI files. No rate limit figures or SLA are published, the managed gateway endpoint is requested through an Aembit representative, and no DPA or sub-processor list was found.

Vercel Connect

Provider refresh tokens stay with Vercel, and code receives short-lived tokens tied to a project and environment through one call with a public OpenAPI definition. Vercel's SLA excludes its APIs, the status page records 94 minutes of elevated Connect errors on 10 September 2026, and the only SDK is TypeScript.

Before you call either

Aembit

  1. Read the API Base URL and token from the tenant's Profile page. Tokens last 1 hour by default, so plan to refresh
  2. Send X-Aembit-ResourceSet on Cloud API, Edge API and MCP calls outside the default Resource Set, or the request runs against the default set
  3. Cache the Edge API access token from /edge/v1/auth until near expiry before calling /edge/v1/credentials. Both endpoints can answer 429
  4. Point MCP clients at https://<gateway-host>/mcp. The /me path is deprecated
  5. Expect tool names prefixed with the Server Workload name behind the MCP Identity Gateway, and keep perPage at 100 or less on the Aembit MCP Server

Vercel Connect

  1. Call getToken at request time and don't store the result. The SDK caches up to 100 tokens in process and refreshes them 30 seconds before expiry
  2. Pass scopes on every request. Since SDK 1.0.0 an omitted scopes defaults to ['*'], the connector's default scopes
  3. Catch UserAuthorizationRequiredError, call startAuthorization and send the user to the returned URL. Consent needs a person in a browser
  4. Outside Vercel, pass a Vercel access token as vercelToken. It can request only the app subject or its own user, not another user
  5. On a 429 wait one minute for the window to reset. Limits are 200 token requests a minute per team

Questions

Which is better for AI agents, Aembit or Vercel Connect?

Aembit scores 70.5 (BB) on agent readiness against Vercel Connect's 68.8 (B), and leads in 3 of 7 scored categories. Vercel Connect leads on transparency & trust.

Do Aembit and Vercel Connect need an API key?

Both take an API key or an OAuth sign-in.

Can an agent call Aembit and Vercel Connect without installing anything?

No hosted endpoint is listed for Aembit. Vercel Connect has a hosted endpoint at https://api.vercel.com.

Other comparisons with Aembit or Vercel Connect

Machine-readable

For companies

Do agents find, use and choose your tools?

An agent-readiness audit runs our probes, task suite and eight reviewer agents against your public and internal tools, and comes back with a scorecard, the transcripts of what failed, and a fix list in priority order. From $2,500, re-run included. We never take payment to move a rank. We do help companies earn one.

Get an auditSee a sample report