Synapse

Synapse Financial Technologies was a San Francisco banking-as-a-service platform, founded 2014-04-14 by Sankaet Pathak and Bryan Keltner, that sold a REST API letting fintech companies open and operate deposit accounts, move money over ACH and wires, issue cards and run KYC/CIP checks through partner banks including Evolve Bank & Trust, AMG National Trust, American Bank North America and Lineage Bank. At its peak it served roughly 100 fintech platforms reaching about 10 million end customers, and it published first-party client libraries for Node.js, Python, Ruby, Go and PHP against its v3.1 REST API. Synapse filed for Chapter 11 bankruptcy on 2024-04-22 with a $65-96 million shortfall between its records and its partner banks'; the sale of its technology assets drew no qualified bids and the case was later dismissed. The company is defunct: as of 2026-08-29 every synapsefi.com host returns NXDOMAIN, so the API, its documentation and its developer portal are all permanently unreachable. This profile records what survives — the first-party SDKs still published on npm, PyPI, RubyGems and the Go module proxy, and the public GitHub organization.

Synapse is profiled on the APIs.io network. Tagged areas include Company, Banking, Banking as a Service, Fintech, and Payments.

2.8/100 minimal ▬ flat Agent 3/100 human only Full breakdown ↓
scored 2026-09-02 · rubric v0.18.0
0 APIs
CompanyBankingBanking as a ServiceFintechPaymentsACHDeposit AccountsKYCDefunct

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-09-02 · rubric v0.18.0
Regulatory Posture applies to this provider. Its tags matched the Banking & Open Finance regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.
The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/synapsefi: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

Synapsefi Rate Limits

0 limits

RATE LIMITS

Resources

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Build 3

SDKs, sample code, and the tooling you integrate with

Operate 1

Status, limits, changes, and where to get help

Commercial 1

Pricing, plans, and the legal terms of use

Source (apis.yml)

apis.yml Raw ↑
aid: synapsefi
name: Synapse
description: 'Synapse Financial Technologies was a San Francisco banking-as-a-service platform, founded 2014-04-14 by Sankaet
  Pathak and Bryan Keltner, that sold a REST API letting fintech companies open and operate deposit accounts, move money over
  ACH and wires, issue cards and run KYC/CIP checks through partner banks including Evolve Bank & Trust, AMG National Trust,
  American Bank North America and Lineage Bank. At its peak it served roughly 100 fintech platforms reaching about 10 million
  end customers, and it published first-party client libraries for Node.js, Python, Ruby, Go and PHP against its v3.1 REST
  API. Synapse filed for Chapter 11 bankruptcy on 2024-04-22 with a $65-96 million shortfall between its records and its partner
  banks''; the sale of its technology assets drew no qualified bids and the case was later dismissed. The company is defunct:
  as of 2026-08-29 every synapsefi.com host returns NXDOMAIN, so the API, its documentation and its developer portal are all
  permanently unreachable. This profile records what survives — the first-party SDKs still published on npm, PyPI, RubyGems
  and the Go module proxy, and the public GitHub organization.'
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - rate-limits
  generated: '2026-09-02'
  method: derived
image: https://avatars.githubusercontent.com/u/21111011?v=4
url: https://raw.githubusercontent.com/api-evangelist/synapsefi/refs/heads/main/apis.yml
x-type: company
x-source: harvest:secondary-market
x-tier: stub
x-tier-reason: harvest
specificationVersion: '0.20'
x-status: defunct
x-status-detail: Filed Chapter 11 in April 2024; the platform shut down and synapsefi.com no longer resolves (no DNS). Tracked
  here as a secondary-market entity only.
created: '2026-08-29'
modified: '2026-08-29'
tags:
- Company
- Banking
- Banking as a Service
- Fintech
- Payments
- ACH
- Deposit Accounts
- KYC
- Defunct
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: GitHubOrganization
  url: https://github.com/SynapseFI
- type: Packages
  url: packages/synapsefi-packages.yml
- type: SDKs
  url: packages/synapsefi-packages.yml
- type: Lifecycle
  url: lifecycle/synapsefi-lifecycle.yml
- type: Plans
  url: plans/synapsefi-plans-pricing.yml
- type: RateLimits
  url: rate-limits/synapsefi-rate-limits.yml
- type: LLMsTxt
  url: llms/synapsefi-llms.txt
x-enrichment:
  date: '2026-08-29'
  status: minimal
  artifacts_added: 6
  pass: local-v1
x-coverage:
  state: none
  reason: defunct
  detail: Synapse Financial Technologies filed Chapter 11 on 2024-04-22, no buyer took the platform, and the entire synapsefi.com
    zone has since been withdrawn — synapsefi.com, api.synapsefi.com and docs.synapsefi.com all fail DNS resolution with NXDOMAIN,
    so there is no host left to serve a contract, a portal or a .well-known document.
  evidence:
  - url: https://synapsefi.com/
    status: 0
    note: 'curl: (6) Could not resolve host — NXDOMAIN'
  - url: https://api.synapsefi.com/openapi.json
    status: 0
    note: 'curl: (6) Could not resolve host — NXDOMAIN'
  - url: https://docs.synapsefi.com/
    status: 0
    note: 'curl: (6) Could not resolve host — NXDOMAIN'
  - url: https://github.com/SynapseFI
    status: 200
    note: Organization is live with 11 public repositories, but every git tree was walked and none contains an OpenAPI, Swagger,
      AsyncAPI, GraphQL SDL, protobuf, WSDL or Postman collection.
  checked: '2026-08-29'

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