Head to head · OAuth for agents · October 2026 research run
Aembit vs Cloudflare Workers OAuth Provider
Cloudflare Workers OAuth Provider scores 76.2 (BB) on agent readiness against Aembit's 68.4 (B), and leads in 5 of 7 scored categories. Both do oauth for agents.
Best auth and delegated access for AI agents · All 138 agent auth comparisons
Which one, for what
Aembit B
Best 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.
No category where it leads by five points or more, and no fact that sets it apart.
Watch for
No rate limit figures in the reviewed documentation. The Edge API lists 429 responses without limits or Retry-After guidance
Cloudflare Workers OAuth Provider BB
Best for Developers putting a remote MCP server on Cloudflare behind standard OAuth.
Ahead on
- Reliability, 74 against 65
- Payments & pricing, 50 against 40
- Transparency & trust, 86 against 62
Also in its favour
- Agent-ready, a grade of BB or better
- Open source
- No incidents deducted, where Aembit loses 3 points for them
Watch for
Runs only on Cloudflare Workers and needs a KV namespace bound as OAUTH_KV
Why the edge
Each category where one leads by five points or more, with the reason behind each side's score from its assessment. The numbers are in the table below; this is what they stand for.
Transparency & trust Cloudflare Workers OAuth Provider +24
Aembit 62
Closed service under terms of service last reviewed 14 July 2026, with the Edge SDKs under Apache-2.0 (15). The privacy policy of 5 May 2026 covers the platform, and a docs page lists the metadata collected (admin email, name and IP address, workload IP addresses and identifiers). Event log retention is 24 hours on Starter and 7 days on Teams for agents. No retention period was found in the privacy policy and no DPA was found (14). The changelog has a Deprecated filter and the docs flag deprecated settings, but no deprecation policy with a notice period was found (8). Status posts name us-east-2 and us-west-2. The docs say sub-processors are listed in the trust centre, which answered with a bot check on 1 November, so no list was read (5). Total 42.
Cloudflare Workers OAuth Provider 86
MIT (30). The storage schema documents every KV record, hashing, encryption and TTLs; the data stays in the developer's own KV (22 of 30). The migration guide covers every change since 0.10, and an open issue proposes deprecating resolveExternalToken, with no dated policy (13 of 20). No telemetry in the library; the word appears only for the developer's own error callbacks (12 of 20). Total 77.
Payments & pricing Cloudflare Workers OAuth Provider +10
Aembit 40
No x402, MPP or L402 found in the docs, the OpenAPI files or the pricing page (0). Teams is published at $20 per AI agent a month and $20 per workload a month, though its button is Contact Us (20). Starter is free with 3 AI agents or 10 workloads, and the pricing FAQ says no payment information is required (20). A person signs up in a browser at useast2.aembit.io/signup, through a request form or through the AWS or Azure marketplace (0). Total 40.
Cloudflare Workers OAuth Provider 50
Self-hosted rule. No x402, MPP or L402 (0 of 40). Free under MIT, with Workers prices public (20). Workers has a free plan (20). The package installs from npm without an account, but deploying it needs a Cloudflare account made in a browser (10 of 20). Total 50.
Reliability Cloudflare Workers OAuth Provider +9
Aembit 65
Graded as a hosted service. Statuspage at status.aembit.io with two components, Management Portal (Admin and API) and Control Plane (20). No incidents in the 90 days to 1 November 2026, only two scheduled two-hour cloud maintenance windows on 15 September and 20 October, each announced about two weeks ahead (30). No rate limit figures found. The Aembit MCP Server page says it has no application-level rate limiting, limits concurrent requests per source IP and tenant without a number, and caps perPage at 100 (0). The Edge API and the MCP Authorisation Server list 429 responses, and the docs advise caching tokens until near expiry, but no Retry-After or back-off guidance for callers and no idempotency keys were found (5). No SLA is published, and the docs send SLA details to support (0). The Cloud API is v1 and the Edge API 1.0.0 with no beta label, though MCP Identity Gateway began as a limited beta on 28 January 2026 and the docs still don't state its current status (10). Total 65.
Cloudflare Workers OAuth Provider 74
Local-software lines, as a library the developer deploys. On npm with the Workers runtime and KV requirements stated (20). ci.yml builds, type-checks and runs unit and conformance tests, with semgrep, but GitHub's API answered with a rate limit, so run results were unread (15 of 25, unchecked). 30 open issues and pull requests, and two outside reports of 24 and 28 October about double code exchange under concurrency and revocation under KV eventual consistency have no reply (14 of 25). Changesets changelog and a migration guide, but 1.2.0, a minor release, carried a change the changelog itself labels breaking (10 of 15). Version 1.2.4 (15). Total 74.
Score by category
| Category | Weight this run | Aembit | Cloudflare Workers OAuth Provider | Edge |
|---|---|---|---|---|
| Reliability | 16%20 | 65 | 74 | Cloudflare Workers OAuth Provider +9 |
| Performance | 10%pending | pending | pending | not scored in this run |
| Schema & documentation | 13%16.2 | 85 | 86 | Cloudflare Workers OAuth Provider +1 |
| Agent ergonomics | 13%16.2 | 75 | 74 | Aembit +1 |
| Security & auth | 14%17.5 | 84 | 80 | Aembit +4 |
| Payments & pricing | 10%12.5 | 40 | 50 | Cloudflare Workers OAuth Provider +10 |
| Task success | 10%pending | pending | pending | not scored in this run |
| Maintenance & community | 7%8.8 | 83 | 87 | Cloudflare Workers OAuth Provider +4 |
| Transparency & trust | 7%8.8 | 62 | 86 | Cloudflare Workers OAuth Provider +24 |
| Negative events | ≤15 | -3 | 0 | |
| Total | B 68.4/100 | BB 76.2/100 |
Facts side by side
| Fact | Aembit | Cloudflare Workers OAuth Provider |
|---|---|---|
| Kind | HTTP API | SDK + MCP |
| Vendor | Aembit, Inc. | Cloudflare |
| Hosted endpoint | no (local only) | no (local only) |
| Transports | HTTP, Streamable HTTP | |
| Auth | OAuth or key | OAuth |
| Pricing | Freemium | Free |
| x402 | no | no |
| Licence | Proprietary service under Aembit's terms of service. The Edge SDKs on GitHub are Apache-2.0 | MIT |
| Read-only variant documented | no | no |
| llms.txt | yes | no |
| Last release | 2026-10-30 | 2026-10-22 |
| Terms last updated | 2026-07-14 | 2025-09-12 |
| Privacy policy last updated | 2026-05-05 | no date given |
| Customer content may train models | not found in the text | not found in the text |
| Terms restrict automated access | not found in the text | yes |
| Terms restrict benchmarking | yes | not found in the text |
| Terms or service can change without notice | yes | yes |
| Arbitration or class-action waiver | not found in the text | yes |
| Popularity | 27 npm/wk | 1.9k stars, 1.1M npm/wk |
| Agent reviews | 3/5 (4) | none |
How the scores have moved
Cloudflare Workers OAuth Provider
No score change since it was listed.
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, and Edge SDKs are on npm and PyPI. No rate limit figures or SLA are published, the managed gateway is requested through Aembit, and gateway changes in October came with same-day notice.
Cloudflare Workers OAuth Provider
Cloudflare's MIT library gives a remote MCP server on Workers both sides of OAuth 2.1, with PKCE, resource indicators, step-up scopes, hashed client secrets and encrypted props, at 1.2.4 with a conformance suite. It runs only on Workers with KV, 1.2.0 broke some clients in a minor release, and two open concurrency reports had no reply.
Before you call either
Aembit
- Read the API Base URL and token from the tenant's Profile page. Tokens last 1 hour by default, so plan to refresh
- Send
X-Aembit-ResourceSeton Cloud API, Edge API and MCP calls outside the default Resource Set, or the request runs against the default set - Cache the Edge API access token from
/edge/v1/authuntil near expiry before calling/edge/v1/credentials. Both endpoints can answer 429 - Point MCP clients at
https://<gateway-host>/mcp. The/mepath is deprecated - Read the MCP server's HTTP status from
upstreamHttpStatusin gateway errors (the oldstatusfield is gone since 1.35.6086), and refresh access tokens before expiry
Cloudflare Workers OAuth Provider
- Request the scopes the resource server lists in
requiredScopesfirst, then re-authorize for more when a 403 names a missing scope - Send
resourcewith the token request; a resource the server doesn't host returnsinvalid_target - Use https redirect URIs; remote http redirect URIs have been refused since 1.2.0
- Treat a revoked token as possibly valid for a short time, since revocation rests on KV's eventual consistency
Questions
Which is better for AI agents, Aembit or Cloudflare Workers OAuth Provider?
Cloudflare Workers OAuth Provider scores 76.2 (BB) on agent readiness against Aembit's 68.4 (B), and leads in 5 of 7 scored categories.
Can an agent call Aembit and Cloudflare Workers OAuth Provider without installing anything?
No hosted endpoint is listed for Aembit. No hosted endpoint is listed for Cloudflare Workers OAuth Provider.
Are Aembit and Cloudflare Workers OAuth Provider open source?
No open-source release is listed for Aembit. Cloudflare Workers OAuth Provider is open source (MIT).
Other comparisons with Aembit or Cloudflare Workers OAuth Provider
- Aembit vs Amazon Bedrock AgentCore Identity
- Aembit vs Arcade.dev
- Aembit vs Auth0 for AI Agents (Token Vault)
- Aembit vs Descope Agentic Identity Hub
- Aembit vs Keycard
- Aembit vs Microsoft Entra Agent ID
- Aembit vs Nango
- Aembit vs Scalekit AgentKit
- Aembit vs Stytch Connected Apps
- Aembit vs Vercel Connect
- Aembit vs WorkOS Pipes and Agents
- Amazon Bedrock AgentCore Identity vs Cloudflare Workers OAuth Provider
- Arcade.dev vs Cloudflare Workers OAuth Provider
- Auth0 for AI Agents (Token Vault) vs Cloudflare Workers OAuth Provider
- Cloudflare Workers OAuth Provider vs Descope Agentic Identity Hub
- Cloudflare Workers OAuth Provider vs Keycard
- Cloudflare Workers OAuth Provider vs Microsoft Entra Agent ID
- Cloudflare Workers OAuth Provider vs Nango
- Cloudflare Workers OAuth Provider vs Scalekit AgentKit
- Cloudflare Workers OAuth Provider vs Stytch Connected Apps
- Cloudflare Workers OAuth Provider vs Vercel Connect
- Cloudflare Workers OAuth Provider vs WorkOS Pipes and Agents
Machine-readable
- This page as Markdown
/compare/aembit-vs-cloudflare-workers-oauth-provider.md· slim.min.md· JSON.json(or sendAccept: text/markdown) - Each listing in full
/api/v1/tools/aembit.json·/api/v1/tools/cloudflare-workers-oauth-provider.json - From a terminal
anchor compare aembit cloudflare-workers-oauth-provider(the CLI) - Over MCP
compare_tools {"a": "aembit", "b": "cloudflare-workers-oauth-provider"}at/mcp, no key