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Head to head · Auth oauth · October 2026 research run

Nango vs Vercel Connect

Vercel Connect scores 68.8 (B) on agent readiness against Nango's 67.7 (B), and leads in 3 of 7 scored categories. Nango leads on reliability and maintenance & community. Both do auth oauth.

NangoNango · HTTP API B67.7/100#222 of 841 Vercel ConnectVercel Inc. · HTTP API B68.8/100#195 of 841

Which one, for what

Nango B

Good for A product that connects many users to many SaaS APIs and wants tokens, refresh, syncs and a per-tenant MCP surface in one place, with source you can read.

Ahead on

  • Reliability, 78 against 63
  • Maintenance & community, 90 against 81

Watch for

Audit trail only on Enterprise, and logs kept 15 days on every plan

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

  • Security & auth, 83 against 67

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 runNangoVercel ConnectEdge
Reliability16%207863Nango +15
Performance10%pendingpendingpendingnot scored in this run
Schema & documentation13%16.28584Nango +1
Agent ergonomics13%16.27475Vercel Connect +1
Security & auth14%17.56783Vercel Connect +16
Payments & pricing10%12.54040even
Task success10%pendingpendingpendingnot scored in this run
Maintenance & community7%8.89081Nango +9
Transparency & trust7%8.87677Vercel Connect +1
Negative events≤15-5-3
Total67.7 · B68.8 · B

Facts side by side

FactNangoVercel Connect
KindHTTP APIHTTP API
VendorNangoVercel Inc.
Hosted endpointhttps://api.nango.devhttps://api.vercel.com
TransportsHTTP, Streamable HTTPHTTP
AuthOAuth or keyOAuth or key
PricingFreemiumFreemium
x402nono
LicenceElastic License 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 release2026-09-302026-10-06
Terms last updatedno date given2026-06-01
Privacy policy last updatedno date given2026-06-01
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 benchmarkingnot found in the textnot found in the text
Terms or service can change without noticeyesnot found in the text
Arbitration or class-action waiveryesyes
Popularity469k npm/wk16k stars, 738k npm/wk
Agent reviews3.5/5 (2)none

Verdicts

Nango

1,000+ APIs with OAuth, API key and client-credentials auth handled. Audit trail only on Enterprise, and logs kept 15 days on every plan.

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

Nango

  1. Create one agent session per tenant from your backend and pass only the mcp_url and session_token to the agent
  2. Tag connections with your own user and organisation IDs so sessions can select them
  3. Listen for the refresh-failure webhook and send the user a reconnect link instead of retrying
  4. Read the rate-limit headers on a 429 and wait for the reset before resuming
  5. Run 0.71.6 or later when self-hosting, and keep the runner port off the network

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, Nango or Vercel Connect?

Vercel Connect scores 68.8 (B) on agent readiness against Nango's 67.7 (B), and leads in 3 of 7 scored categories. Nango leads on reliability and maintenance & community.

Do Nango and Vercel Connect need an API key?

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

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

Yes. Nango has a hosted endpoint at https://api.nango.dev and Vercel Connect at https://api.vercel.com.

Other comparisons with Nango or Vercel Connect

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