# Synapse (Synapse Financial Technologies)

> DEFUNCT. Synapse Financial Technologies was a banking-as-a-service platform whose REST API let
> fintech companies open deposit accounts, move money over ACH and wires, issue cards and run
> KYC/CIP checks through partner banks. The company filed for Chapter 11 bankruptcy on 2024-04-22,
> no buyer acquired the platform, and as of 2026-08-29 every synapsefi.com host returns NXDOMAIN.
> The API is permanently unreachable and there is no successor.

<!--
generated: 2026-08-29
method: generated
source: Generated by the API Evangelist enrichment pipeline from all/synapsefi/apis.yml and the
  artifacts in this repository. The provider publishes no llms.txt; https://synapsefi.com/llms.txt
  cannot be fetched because the host does not resolve.
-->

## Status

- **Company status:** defunct. Chapter 11 filed 2024-04-22 (In re Synapse Financial Technologies,
  Inc., 1:24-bk-10646, C.D. Cal. Bankr.); asset sale to TabaPay terminated; no qualified bids in
  the November 2024 auction; Chapter 11 case later dismissed.
- **API status:** retired, without a deprecation period. Last known version: REST v3.1.
- **Historical hosts, all NXDOMAIN as of 2026-08-29:** synapsefi.com, api.synapsefi.com,
  uat-api.synapsefi.com, docs.synapsefi.com, help.synapsefi.com.
- **Successor:** none. Do not attempt to integrate. Do not substitute another provider's host.

## What is NOT available

- No OpenAPI, Swagger, GraphQL SDL, AsyncAPI, protobuf or WSDL. STEP 0b contract discovery probed
  every known host and the full git tree of all 11 public repositories in github.com/SynapseFI and
  found no machine-readable contract anywhere.
- No /.well-known documents — the zone serves no A record, so every probe fails at DNS.
- No agent card, no MCP server, no llms.txt, no status page, no changelog, no published pricing,
  no published rate limits.

## What survives

- [GitHub organization](https://github.com/SynapseFI) — 11 public repositories, all client
  libraries. Last organization update 2024-07-10.
- [Client libraries and packages](packages/synapsefi-packages.yml) — first-party SDKs still
  installable from npm, PyPI, RubyGems and the Go module proxy. They call hosts that no longer
  resolve. Newest first-party release in any registry: npm `synapsenode` 2.0.0-beta.11, published
  2023-06-28.
- [API lifecycle](lifecycle/synapsefi-lifecycle.yml) — the retirement record and timeline.
- [.well-known probe](well-known/synapsefi-well-known.yml) — the confirmed absence, with statuses.
- [Plans and pricing](plans/synapsefi-plans-pricing.yml) — zero, with evidence.
- [Rate limits](rate-limits/synapsefi-rate-limits.yml) — zero, with evidence.

## Surviving first-party SDKs

- npm `synapsenode` 2.0.0-beta.11 (2023-06-28) — Node.js, SynapseFI REST v3.1
- npm `synapsepay` 0.12.0 (2019-04-26) — Node.js, SynapsePay v3.x
- PyPI `synapsepy` 1.2.13 (2021-08-04) — Python, v3.1
- PyPI `synapse-pay-rest` 0.0.27 (2015-11-19) — Python, legacy
- RubyGems `synapse_pay_rest` 3.4.5 (2019-01-23) — Ruby
- RubyGems `synapse_fi` 1.0.0 (2019-01-17) — Ruby
- Go `github.com/SynapseFI/SynapseGo` v0.0.0-20230109194625 (2023-01-09) — untagged pseudo-version
- GitHub only, no registry release: `SynapsePHP`, `SynapseFI-PHP`, `SynapseRuby`

## About this document

This is a third-party profile maintained by [API Evangelist](https://apievangelist.com). It is not
authored by Synapse Financial Technologies. Everything here was assembled from public registries,
the company's public GitHub organization, public court reporting, and direct DNS/HTTPS probes
recorded with their statuses.