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adapters.io

API integration platform for teams shipping customer-facing integrations

Adapters is an API integration platform for dev and product teams: production-grade application integration adapters, visual field mapping, retries and rate-limit handling built in. Ship the integrations your customers keep asking for in days, not sprints, at a flat monthly price.

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Field mapping auto-plugged · tap a port to rewire

5 sample records ready

In short

An application integration adapter is the reusable piece of software that knows how to talk to one specific system: its authentication, its pagination, its rate limits, and the shape of its records. API integration is the work of wiring two of those adapters together and agreeing which field maps to which. Adapters gives you both parts as a managed service: prebuilt adapters for the systems your customers use, and a visual mapping layer between them, at a flat monthly price instead of a per-call meter.

Last updated August 2026

Ready-made connector pairs · retries and alerts · map a pair in the live demo

Production-grade adapters, not another hand-rolled client

Every hand-rolled API client starts as 200 lines of fetch calls and ends as a permanent maintenance job: token refresh, pagination, rate limits, silent schema changes. An adapter ships with all of that solved. See how data integration works in three steps: plug in, map, sync.

Retries and rate limits, handled

Failed records retry with exponential backoff and idempotency keys, so nothing duplicates. When an API returns 429, the adapter respects the reset window and queues the batch instead of dropping it.

Auth that renews itself

OAuth refresh, key rotation, and scoped credentials are the adapter's job. Your customers connect an account once; you never write another token-refresh cron.

Mapping you can read

Schemas render as two port lists joined by cables. Product managers can review a mapping in a screen share; engineers stop translating field names over Slack. Built on the same data mapping tool as every Adapters plan.

Logs your support team can use

Every record carries its own trace: what came in, what transformed, what landed. When a customer asks "where is my order", the answer is one search away, not a grep through production logs.

Webhook triggers in, clean JSON out

Adapters listens for webhooks where the source supports them and falls back to scheduled polling where it does not, down to every minute on Scale. You see the payload before and after every transform.

JSON in / JSON out

Preview every transform on real payloads

Click any cable to see the record as the API sent it and as it will land: cents to dollars, timestamps to the destination timezone, names split, enums mapped. No deploy, no staging run, no surprise in production. Try it on sample records in the live demo.

In · stripe.charge

"amount": 12900
"created": 1767225600
"customer": "cus_9x2"

Out · invoice

"total": "129.00"
"issued_at": "2026-01-01"
"account_ref": "cus_9x2"

Triggers

Three ways a sync starts

  • Webhook: the source fires, the adapter syncs within seconds.
  • Schedule: hourly on Starter, 5-minute on Growth, 1-minute on Scale.
  • Manual run: test a mapping against sample records before it goes live.

Browse the API connector library to see which of your customers' systems are already covered.

Three shapes of API integration

Most API work falls into one of these patterns. Each is a mapping plus a schedule or a trigger, not a service you have to build and staff.

Pattern · Product feature

"Sync to QuickBooks" in your own app

Your customers want their invoices in their own books. Map charge.id and charge.amount onto a QuickBooks sales receipt once, and offer it as a feature instead of scheduling a multi-week build.

Pattern · Event driven

Order webhooks into an ERP

A webhook trigger fires the adapter the moment an order is created, so records land in the ERP within seconds. Retries with backoff cover the carrier or ERP API being briefly unavailable, instead of dropping the order.

Pattern · Many to one

Partner APIs onto one schema

Each partner sends a slightly different payload. Map every partner API onto one internal schema, so onboarding the next partner is a mapping in Adapter Studio rather than another branch in your ingest code.

API integration adapters: common questions

What is an integration adapter?

An integration adapter is a reusable component that knows how to talk to one specific system: how to authenticate, how to page through results, how to respect its rate limits, and what its records look like. You write the adapter once, then reuse it for every integration that touches that system.

What is API integration and how does it work?

API integration is connecting two applications so data moves between them through their APIs instead of by hand. It works in three parts: authenticate to both systems, map each source field to a destination field with any transforms in between, then run that mapping on a trigger or a schedule.

What is the difference between an API and an adapter?

The API is the interface a system publishes. The adapter is the code you write against it. The API tells you a rate limit exists; the adapter is what backs off, retries, refreshes the token, and keeps the batch instead of dropping it when the limit is hit.

What is an API integration platform?

An API integration platform is hosted software that supplies the adapters, the mapping layer, the scheduler, and the run logs so you do not build them. You connect accounts, map fields, and set a schedule. The platform owns retries, auth renewal, and the record-level audit trail.

How long does it take to build an API integration?

Hand-rolled, a first working version takes a week or two and then never really finishes, because token refresh, pagination, rate limits, and schema changes keep coming back. On a platform with the adapter already built, connecting the two systems and confirming the mapping takes minutes.

How much does API integration cost?

The build is rarely the expense; maintenance is. Platforms usually bill per task, per API call, or per row, so the bill grows with your volume. Adapters charges a flat monthly price starting at $49, which stays the same whether you sync a thousand records or a million.

If you are weighing a platform against building it yourself, our breakdown of build versus buy for integrations puts numbers on both sides, and what iPaaS means covers where this category sits next to ETL and workflow automation. For the API most integration projects end up calling first, including its daily call allocations and the free integration user licenses that go with it, see Salesforce integration tools.

Ship the integration this week

Production-grade adapters, retries, and webhook triggers from $49 a month.

Try the live demo

No credit card required.