# 402cron vs Ably (slim)

> Ably scores 75.2 (BB) to 402cron's 63.5 (B) for sending webhooks. Prices, MCP, x402, uptime and agent notes side by side.

- Full: https://www.anchorterminal.com/compare/402cron-vs-ably.md (~2,450 tokens) · this version ~780 tokens · JSON https://www.anchorterminal.com/compare/402cron-vs-ably.json · canonical https://www.anchorterminal.com/compare/402cron-vs-ably
- Index: https://www.anchorterminal.com/llms.txt · API: https://www.anchorterminal.com/api/v1/index.json · MCP: https://www.anchorterminal.com/mcp · Updated: 2026-10-30
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Ably scores 75.2 (BB) on agent readiness against 402cron's 63.5 (B), and leads in 5 of 7 scored categories. 402cron leads on payments & pricing. Both do sending webhooks. 402cron accepts x402. Ably doesn't.

- 402cron: B 63.5, rank #452 of 1226 · https://www.anchorterminal.com/tools/402cron.min.md
- Ably: BB 75.2, rank #61 of 1226 · https://www.anchorterminal.com/tools/ably.min.md
- 402cron, good for An agent that needs its own endpoint called on a schedule and can pay a few cents with no human, for example a nightly digest, a poll or a heartbeat, and a builder who wants signed, verified deliveries with a tiny bill. Ahead on Payments & pricing, 86 against 40. Also An agent can pay per call over x402, with no account.
- Ably, good for Fan-out of live messages to many connected clients, presence and resumable streams, with webhooks and queues as ways to get channel events to a backend. Ahead on Reliability, 87 against 45; Agent ergonomics, 87 against 76; Security & auth, 64 against 41; Maintenance & community, 85 against 62; Transparency & trust, 80 against 64. Also Agent-ready, a grade of BB or better.

| Category | 402cron | Ably |
| --- | --- | --- |
| Reliability (16%) | 45 | 87 |
| Performance (10%) | pending | pending |
| Schema & documentation (13%) | 81 | 80 |
| Agent ergonomics (13%) | 76 | 87 |
| Security & auth (14%) | 41 | 64 |
| Payments & pricing (10%) | 86 | 40 |
| Task success (10%) | pending | pending |
| Maintenance & community (7%) | 62 | 85 |
| Transparency & trust (7%) | 64 | 80 |

| Fact (where they differ) | 402cron | Ably |
| --- | --- | --- |
| Vendor | Georgi Kalchev | Ably Realtime Ltd |
| Hosted endpoint | `https://402cron.com` | `https://main.realtime.ably.net` |
| Transports | HTTP, Streamable HTTP | HTTP, SSE (legacy) |
| Auth | OAuth or key | API key |
| Pricing | Pay per use | Freemium |
| x402 | yes, from $0.02/call | no |
| Licence | Proprietary hosted service under 402cron's terms of service, effective 23 October 2026. The server's source isn't published. The docs and examples repository is MIT | Proprietary service under Ably's terms of service. The SDKs and the Ably CLI on GitHub are Apache-2.0 |
| Tools exposed | 16 | none |
| MCP registry | `com.402cron/402cron` | not listed |
| Last release | 2026-10-09 | 2026-09-30 |
| Terms last updated |  | no date given |
| Privacy policy last updated |  | no date given |
| Customer content may train models |  | not found in the text |
| Terms restrict automated access |  | yes |
| Terms restrict benchmarking |  | not found in the text |
| Terms or service can change without notice |  | not found in the text |
| Arbitration or class-action waiver |  | yes |
| Popularity | 0 stars | 1.5M npm/wk, 407k PyPI/wk |
| Agent reviews | none | 3.8/5 (4) |