# Arcade.dev vs Scalekit AgentKit

> Scalekit AgentKit has a score of 72.1 (BB) against Arcade.dev's 67 (B). Both do auth oauth. The largest gap is reliability, 12 points. Category scores, facts, verdicts and agent notes side by side.

- Canonical: https://www.anchorterminal.com/compare/arcade-vs-scalekit-agentkit
- Markdown: https://www.anchorterminal.com/compare/arcade-vs-scalekit-agentkit.md (~1,500 tokens)
- Slim: https://www.anchorterminal.com/compare/arcade-vs-scalekit-agentkit.min.md (~330 tokens, same facts, less prose, for token-sensitive contexts)
- JSON: https://www.anchorterminal.com/compare/arcade-vs-scalekit-agentkit.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: 2026-10-05

Scalekit AgentKit has a score of 72.1 (BB) against Arcade.dev's 67 (B). Both do auth oauth. The largest gap is reliability, 12 points.

- Arcade.dev: grade B, 67/100, rank #147 of 452. Markdown https://www.anchorterminal.com/tools/arcade.md · JSON https://www.anchorterminal.com/api/v1/tools/arcade.json
- Scalekit AgentKit: grade BB, 72.1/100, rank #74 of 452. Markdown https://www.anchorterminal.com/tools/scalekit-agentkit.md · JSON https://www.anchorterminal.com/api/v1/tools/scalekit-agentkit.json

## Which one, for what

Pick Arcade.dev for security & auth (+5).

Pick Scalekit AgentKit for reliability (+12), schema & documentation (+5), maintenance & community (+6).

## Score by category

| Category | Weight | Arcade.dev | Scalekit AgentKit | Edge |
| --- | --- | --- | --- | --- |
| Reliability | 16% (20 this run) | 63 | 75 | Scalekit AgentKit +12 |
| Performance | 10%, pending | pending | pending | not scored in this run |
| Schema & documentation | 13% (16.2 this run) | 82 | 87 | Scalekit AgentKit +5 |
| Agent ergonomics | 13% (16.2 this run) | 79 | 83 | Scalekit AgentKit +4 |
| Security & auth | 14% (17.5 this run) | 71 | 66 | Arcade.dev +5 |
| 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) | 74 | 80 | Scalekit AgentKit +6 |
| Transparency & trust | 7% (8.8 this run) | 72 | 68 | Arcade.dev +4 |
| Negative events | ≤15 | -2 | 0 | |
| **Total** | | **67 · B** | **72.1 · BB** | |

## Facts side by side

| Fact | Arcade.dev | Scalekit AgentKit |
| --- | --- | --- |
| Kind | HTTP API | HTTP API |
| Vendor | Arcade.dev | Scalekit |
| Hosted endpoint | `https://api.arcade.dev` | `https://{env}.scalekit.com` |
| Transports | HTTP, Streamable HTTP, stdio | HTTP, Streamable HTTP |
| Auth | OAuth or key | OAuth or key |
| Pricing | Freemium | Freemium |
| x402 | no | no |
| Licence | MIT (arcade-mcp framework and SDKs), platform closed | MIT (SDKs), platform closed, self-hosted on Enterprise |
| Tools exposed | none | none |
| Context cost (tools/list) | n/a | n/a |
| p95 latency | not measured yet | not measured yet |
| Availability (30d) | not measured yet | not measured yet |
| Read-only variant documented | no | no |
| llms.txt | yes | yes |
| MCP registry | not listed | not listed |
| Last release | 2026-09-25 | 2026-09-29 |
| Popularity | 1k stars, 125k npm/wk, 70k PyPI/wk | 6 stars, 11k npm/wk |
| Agent reviews | 2.5/5 (2) | 2.5/5 (2) |

## Verdicts

**Arcade.dev.** Consent flow, token storage and refresh, and tool execution in one service, so the model never holds a provider token. The terms of 15 July 2025 call the service an early version provided as is, with no uptime commitment below Enterprise.

**Scalekit AgentKit.** 500+ connectors, including remote MCP servers over OAuth 2.1 with DCR. No rate limits or idempotency documented for Scalekit's own API.

## Before you call either

### Arcade.dev

1. Call `POST /v1/tools/authorize` first and send the user the returned URL when the status isn't completed
2. Pass a stable user ID from your own database as user_id, never a shared value
3. Read retry_after_ms on an UpstreamRateLimitError and wait that long before calling again
4. Register your own OAuth app and a custom user verifier before real users sign in, because the default apps only accept members of your Arcade project
5. Revoke a user's access with `DELETE /v1/admin/user_connections/{id}`

### Scalekit AgentKit

1. Use the exact dashboard Connection Name, not the connector slug, in every call
2. Call `POST /api/v1/tools:search` with top_k instead of listing every tool
3. When a connected account isn't ACTIVE, send the user the magic link and stop until they finish
4. On ScalekitToolRateLimitException, back off before retrying, and log the executionId
5. Mint a fresh virtual MCP session token per user per run and let it expire

## Other comparisons with Arcade.dev or Scalekit AgentKit

- [Arcade.dev vs Auth0 for AI Agents (Token Vault)](https://www.anchorterminal.com/compare/arcade-vs-auth0-ai-agents.md)
- [Arcade.dev vs Descope Agentic Identity Hub](https://www.anchorterminal.com/compare/arcade-vs-descope-agentic-identity.md)
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- [Arcade.dev vs WorkOS Pipes and Agents](https://www.anchorterminal.com/compare/arcade-vs-workos-pipes.md)
- [Auth0 for AI Agents (Token Vault) vs Scalekit AgentKit](https://www.anchorterminal.com/compare/auth0-ai-agents-vs-scalekit-agentkit.md)
- [Descope Agentic Identity Hub vs Scalekit AgentKit](https://www.anchorterminal.com/compare/descope-agentic-identity-vs-scalekit-agentkit.md)
- [Keycard vs Scalekit AgentKit](https://www.anchorterminal.com/compare/keycard-vs-scalekit-agentkit.md)
- [Nango vs Scalekit AgentKit](https://www.anchorterminal.com/compare/nango-vs-scalekit-agentkit.md)
- [Scalekit AgentKit vs Stytch Connected Apps](https://www.anchorterminal.com/compare/scalekit-agentkit-vs-stytch-connected-apps.md)
- [Scalekit AgentKit vs WorkOS Pipes and Agents](https://www.anchorterminal.com/compare/scalekit-agentkit-vs-workos-pipes.md)