Voltage

Voltage is Bitcoin and Lightning Network money infrastructure that lets financial platforms send and receive instant, permissionless payments at scale. Its Payments API (voltageapi.com/v1) exposes wallets, payments, quotes, and lines of credit for BTC and USD settlement, backed either by a Voltage-managed line of credit or your own Lightning node. Voltage also runs managed Lightning node infrastructure (LND, Core Lightning, BTCPay Server) with macaroon-based access, webhooks for real-time payment events, a Mutinynet staging sandbox, and built-in OFAC/compliance risk screening via Amboss Reflex. The platform is SOC 2 Type II and NMLS compliant.

Voltage publishes 1 API on the APIs.io network. Tagged areas include Company, Enterprise, Bitcoin, Lightning Network, and Payments.

The Voltage catalog on APIs.io includes 2 event-driven AsyncAPI specifications.

Voltage’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 30 more developer resources.

🌐 Visit website 📡 Source on GitHub
56.0/100 strong ▬ flat Agent 45/100 agent ready Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
AccessSelf serve
1 APIs 1 MCP Servers
CompanyEnterpriseBitcoinLightning NetworkPaymentsCryptocurrencyFinancial ServicesWalletsInfrastructureFintechNode HostingWeb3

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 56.0/100 · strong
Contract Quality 11.0 / 21
Developer Ergonomics 12.8 / 17
Commercial Clarity 8.9 / 17
Operational Transparency 6.1 / 11
Governance 1.3 / 10
Discoverability 7.4 / 9
Regulatory Posture 8.4 / 15
Agent readiness — 45/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 9 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 6 / 6
Agent Skills 5 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 3 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
Regulatory Posture applies to this provider. Its tags matched the Payments 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/. This rating is computed from github.com/api-evangelist/voltage: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

Individual APIs this provider publishes, each with its own machine-readable definition.

Voltage Payments API

REST API for sending and receiving Bitcoin/Lightning payments. Manage wallets, create send/receive payments (BOLT11, on-chain, BIP21), lock BTC/USD exchange rates with quotes, v...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

voltage-mcp.yml

MCP SERVER

Event Specifications 2

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Voltage Payments Webhooks

AsyncAPI description of the Voltage Payments webhook event surface, generated by the API Evangelist enrichment pipeline from the public webhooks documentation (https://docs.volt...

ASYNCAPI

Voltage Payments Webhooks

ASYNCAPI

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Voltage Authentication

apiKey · 2 schemes

SECURITY

Voltage Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Voltage Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp
 Sandbox
Sandbox

Documentation 3

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference
 AsyncAPI
AsyncAPI

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt
 MCPServer
MCPServer
 WellKnown
WellKnown
 AgentSkill
AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 Idempotency
Idempotency
 Lifecycle
Lifecycle
 Webhooks
Webhooks
 ErrorCatalog
ErrorCatalog
 Conformance
Conformance
 DataModel
DataModel

Scroll for all 7

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 CLI
CLI
 Packages
Packages
 SDKs
SDKs

Access & Security 6

Authentication, authorization, and security posture

VulnerabilityDisclosure
VulnerabilityDisclosure
 Security
Security
 DomainSecurity
DomainSecurity
 Authentication
Authentication
 Compliance
Compliance
 SecurityTxt
SecurityTxt

Operate 4

Status, limits, changes, and where to get help

Support
Support
 StatusPage
StatusPage
 ChangeLog
ChangeLog
 ChangeLog
ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: voltage
name: Voltage
description: Voltage is Bitcoin and Lightning Network money infrastructure that lets financial platforms send and receive
  instant, permissionless payments at scale. Its Payments API (voltageapi.com/v1) exposes wallets, payments, quotes, and lines
  of credit for BTC and USD settlement, backed either by a Voltage-managed line of credit or your own Lightning node. Voltage
  also runs managed Lightning node infrastructure (LND, Core Lightning, BTCPay Server) with macaroon-based access, webhooks
  for real-time payment events, a Mutinynet staging sandbox, and built-in OFAC/compliance risk screening via Amboss Reflex.
  The platform is SOC 2 Type II and NMLS compliant.
accessModel:
  pricing: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Self-serve signup
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://github.com/voltagecloud.png
url: https://raw.githubusercontent.com/api-evangelist/voltage/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- gv
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-21'
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 22
  pass: local-v1
tags:
- Company
- Enterprise
- Bitcoin
- Lightning Network
- Payments
- Cryptocurrency
- Financial Services
- Wallets
- Infrastructure
- Fintech
- Node Hosting
- Web3
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
apis:
- name: Voltage Payments API
  description: REST API for sending and receiving Bitcoin/Lightning payments. Manage wallets, create send/receive payments
    (BOLT11, on-chain, BIP21), lock BTC/USD exchange rates with quotes, view lines of credit, and subscribe to webhooks for
    payment lifecycle events. Authenticated with an environment-scoped x-api-key.
  humanURL: https://docs.voltageapi.com
  baseURL: https://voltageapi.com/v1
  tags:
  - Payments
  - Bitcoin
  - Lightning Network
  - Wallets
  properties:
  - type: Documentation
    url: https://docs.voltageapi.com
  - type: APIReference
    url: https://voltageapi.com/v1/docs
  - type: GettingStarted
    url: https://docs.voltageapi.com/developer-guide
common:
- type: VulnerabilityDisclosure
  url: security/voltage-vulnerability-disclosure.yml
- type: Security
  url: security/voltage-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/voltage-domain-security.yml
- type: Website
  url: https://voltage.cloud
- type: DeveloperPortal
  url: https://docs.voltageapi.com
- type: Documentation
  url: https://docs.voltageapi.com
- type: APIReference
  url: https://voltageapi.com/v1/docs
- type: GettingStarted
  url: https://docs.voltageapi.com/developer-guide
- type: Support
  url: https://voltage.cloud/support
- type: Blog
  url: https://voltage.cloud/blog
- type: Pricing
  url: https://voltage.cloud/pricing
- type: SignUp
  url: https://app.voltage.cloud
- type: TermsOfService
  url: https://voltage.cloud/terms
- type: PrivacyPolicy
  url: https://voltage.cloud/privacy
- type: GitHubOrganization
  url: https://github.com/voltagecloud
- type: StatusPage
  url: https://status.voltage.cloud
- type: ChangeLog
  url: https://docs.voltageapi.com/release-notes
- type: LLMsTxt
  url: llms/voltage-llms.txt
- type: Authentication
  url: authentication/voltage-authentication.yml
- type: Conventions
  url: conventions/voltage-conventions.yml
- type: Idempotency
  url: conventions/voltage-conventions.yml
- type: ChangeLog
  name: Voltage Payments changelog (artifact)
  url: changelog/voltage-changelog.yml
- type: Lifecycle
  url: lifecycle/voltage-lifecycle.yml
- type: Sandbox
  url: sandbox/voltage-sandbox.yml
- type: AsyncAPI
  url: asyncapi/voltage-payments-asyncapi.yml
- type: Webhooks
  url: asyncapi/voltage-payments-webhooks.yml
- type: MCPServer
  url: mcp/voltage-mcp.yml
- type: ErrorCatalog
  url: errors/voltage-problem-types.yml
- type: Conformance
  url: conformance/voltage-conformance.yml
- type: Compliance
  url: conformance/voltage-conformance.yml
- type: DataModel
  url: data-model/voltage-data-model.yml
- type: CLI
  url: cli/voltage-cli.yml
- type: Packages
  url: packages/voltage-packages.yml
- type: SDKs
  url: packages/voltage-packages.yml
- type: WellKnown
  url: well-known/voltage-well-known.yml
- type: SecurityTxt
  url: well-known/voltage-security.txt
- type: AgentSkill
  url: skills/_index.yml