Related Products
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About
EchoRelay is a managed runtime for custom API integrations.
Describe one integration once: what comes in, the target system, credentials, the retry policy, and how the answer maps back. EchoRelay validates each inbound request, maps it, replies synchronously, passes streams through, fans out to multiple targets, or queues delivery with automatic retry, a dead-letter queue and replay.
Every configuration change is versioned. Preview, diff, dry run, schedule, publish and roll back. When a vendor changes their API or rotates a credential, you update the configuration and publish. Deploy nothing.
Build and operate each integration through the REST API, an MCP server so an AI agent can do the wiring, or the web panel. Free to start, no card required.
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About
Most failed subscription payments don't come back on a retry. Expired cards, 3D Secure requests and generic bank declines need the customer to act, and most customers never notice the payment failed.
Rebounce connects to Stripe, Paddle or Square in a few minutes. When a payment fails, it reads the decline code, retries only when a retry can work, and sends the customer a short sequence by email, SMS or WhatsApp with a link to a page where they update the card or confirm 3D Secure. No login needed. The sequence stops the moment the invoice is paid.
In our own data, 44% of customers who opened the payment link paid on that page, while automatic retries recovered 5.5%.
Also included: card expiry warnings 30 days ahead, weekly recovery reports, and a free 90-day audit of your Stripe account (read-only, no signup).
Pricing is flat: Starter $3.50/month, Growth $14/month, Scale $39/month. No percentage of recovered revenue.
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Platforms Supported
Windows
Not Supported
Mac
Not Supported
Linux
Not Supported
Cloud
Supported
On-Premises
Not Supported
iPhone
Not Supported
iPad
Not Supported
Android
Not Supported
Chromebook
Not Supported
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Audience
Software teams that maintain their own API integrations: SaaS products, internal platform teams, and engineering groups carrying custom adapters against vendor APIs with no dedicated integration team.
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Audience
SaaS and subscription businesses that bill through Stripe, Paddle or Square and lose revenue to failed card payments. Built for small and mid-size companies, including ones with customers in Latin America who are easier to reach on WhatsApp than by email.
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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Support
Phone Support
Not Supported
24/7 Live Support
Not Supported
Online
Supported
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API
Offers API
Not Supported
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API
Offers API
Not Supported
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Screenshots and Videos |
Screenshots and Videos |
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Pricing
$5
Free Version
Supported
Free Trial
Not Supported
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Pricing
$3.50/month
Free Version
Not Supported
Free Trial
Supported
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Reviews/
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Reviews/
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Supported
In Person
Not Supported
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Training
Documentation
Supported
Webinars
Not Supported
Live Online
Not Supported
In Person
Not Supported
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Company InformationEchoRelay
Founded: 2026
Poland
echorelay.dev
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Company InformationRebounce
Founded: 2026
Brazil
rebounce.dev
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Alternatives |
Alternatives |
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Categories |
Categories |
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API Management Features
Access Control
Supported
Analytics
Supported
API Design
Not Supported
API Lifecycle Management
Not Supported
Dashboard
Supported
Developer Portal
Supported
Testing Management
Supported
Threat Protection
Not Supported
Traffic Control
Supported
Version Control
Supported
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Integrations
Model Context Protocol (MCP)
Supported
Paddle
Not Supported
Square Payments
Not Supported
Stripe
Not Supported
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Integrations
Model Context Protocol (MCP)
Not Supported
Paddle
Supported
Square Payments
Supported
Stripe
Supported
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