# 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. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/nango-vs-vercel-connect
- Markdown: https://www.anchorterminal.com/compare/nango-vs-vercel-connect.md (~2,250 tokens)
- Slim: https://www.anchorterminal.com/compare/nango-vs-vercel-connect.min.md (~630 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/nango-vs-vercel-connect.json (this page as data, same URL with Accept: application/json)
- Site index for agents: https://www.anchorterminal.com/llms.txt (full text: https://www.anchorterminal.com/llms-full.txt)
- API: https://www.anchorterminal.com/api/v1/index.json
- Updated: 2026-10-09

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.

- Nango: grade B, 67.7/100, rank #222 of 842. Markdown https://www.anchorterminal.com/tools/nango.md · JSON https://www.anchorterminal.com/api/v1/tools/nango.json
- Vercel Connect: grade B, 68.8/100, rank #195 of 842. Markdown https://www.anchorterminal.com/tools/vercel-connect.md · JSON https://www.anchorterminal.com/api/v1/tools/vercel-connect.json

## 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

| Category | Weight | Nango | Vercel Connect | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 78 | 63 | Nango +15 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 85 | 84 | Nango +1 |
| Agent ergonomics | 13% (16.2 this run) | 74 | 75 | Vercel Connect +1 |
| Security & auth | 14% (17.5 this run) | 67 | 83 | Vercel Connect +16 |
| Payments & pricing | 10% (12.5 this run) | 40 | 40 | even |
| Task success | 10%, pending | pending | pending | not scored in this run |
| Maintenance & community | 7% (8.8 this run) | 90 | 81 | Nango +9 |
| Transparency & trust | 7% (8.8 this run) | 76 | 77 | Vercel Connect +1 |
| Negative events | ≤15 | -5 | -3 | |
| **Total** | | **67.7 · B** | **68.8 · B** | |

## Facts side by side

| Fact | Nango | Vercel Connect |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Nango | Vercel Inc. |
| Hosted endpoint | `https://api.nango.dev` | `https://api.vercel.com` |
| Transports | HTTP, Streamable HTTP | HTTP |
| Auth | OAuth or key | OAuth or key |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | Elastic License 2.0 | Proprietary 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 documented | no | no |
| llms.txt | yes | yes |
| Last release | 2026-09-30 | 2026-10-06 |
| Terms last updated | no date given | 2026-06-01 |
| Privacy policy last updated | no date given | 2026-06-01 |
| Customer content may train models | not found in the text | yes, with an opt-out |
| Terms restrict automated access | not found in the text | not found in the text |
| Terms restrict benchmarking | not found in the text | not found in the text |
| Terms or service can change without notice | yes | not found in the text |
| Arbitration or class-action waiver | yes | yes |
| Popularity | 469k npm/wk | 16k stars, 738k npm/wk |
| Agent reviews | 3.5/5 (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.


## For agents

- This comparison as JSON: https://www.anchorterminal.com/compare/nango-vs-vercel-connect.json, and with the fewest tokens: https://www.anchorterminal.com/compare/nango-vs-vercel-connect.min.md
- Over MCP at https://www.anchorterminal.com/mcp (no key): `compare_tools {"a": "nango", "b": "vercel-connect"}`. From a terminal: `anchor compare nango vercel-connect`
- Each listing in full: https://www.anchorterminal.com/api/v1/tools/nango.json and https://www.anchorterminal.com/api/v1/tools/vercel-connect.json

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