Axel vs RequestBin
Axel
axelapp.aiRequestBin
requestbin.netSide by side
| Figure | Axel | RequestBin |
|---|---|---|
| Price from | $20/mo | $12/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | Yes |
| API | Yes | Yes |
| Self-hosted | Yes | — |
| Plans published | 2 | 2 |
| Spec score · Webhook Management Software | 8.6 (#7) | 7.8 (#21) |
| Integrations | Listed destinations include Postgres, MongoDB, S3, Cloudflare R2, Databricks, BigQuery, and signed HTTP webhooks; generic webhook and custom HMAC sources are supported. | The MCP server documentation names Claude Code, Cursor, and Windsurf as compatible AI coding agents and lists tools to manage bins, inspect interactions, and replay requests. |
| Retention | Default retention is 30 days for raw payloads and event traces, 90 days for dead letters, 30 days for replay-request records, and 365 days for audit logs. | The privacy policy states request data is stored according to the account plan, typically 30–365 days, and server logs are retained for 90 days. |
| Support | The Free plan includes community support; Axel Cloud customers can also use the configured support address for private account or billing questions. | The PRO plan page advertises a 14-day money-back guarantee and says users can cancel anytime. |
Plans
In their own words
Axel
Axel captures third-party webhooks, routes them to data systems or HTTP services, and replays retained events. It stores an accepted event’s original payload before returning HTTP 202, then delivers it asynchronously. Declarative filters and field transformations can route one event to several destinations. Listed destinations include Postgres, MongoDB, S3, Cloudflare R2, Databricks, BigQuery, and signed HTTP webhooks; generic webhook and custom HMAC sources are also supported. The dashboard and CLI can replay retained events, while Axel Cloud provides 30 days of searchable event and delivery history. Data Contracts infer event and field types and check for schema changes every five minutes, but do not block delivery or guarantee destination acceptance. Delivery is at least once with a stable event ID across retries, so signed receivers should deduplicate. The Free plan includes 10,000 accepted inbound events monthly and community support. Pro costs $20 a month, with additional accepted events at 0.015 USD per 1,000; unused credit expires monthly. Axel is web, API, and self-hosted.
RequestBin
RequestBin has no write-up on Specifiction yet; its figures are above.