Bastion

Bastion is a full-stack, regulated stablecoin infrastructure platform for enterprises and financial institutions. Founded in 2023 and based in Campbell, California by former a16z crypto leaders, Bastion lets companies securely issue, custody, move, and convert USD-backed stablecoins under Bastion's licenses or their own. Its API-first product suite spans a Regulated Wallet API (create unlimited custodial wallets with Cloud HSM and enclave-based key management), stablecoin issuance, on/off-ramps, and payments, plus Compliance-as-a-Service that handles KYC and AML. Bastion Platforms Trust Company, LLC is chartered as a limited purpose trust company by the New York State Department of Financial Services, and Bastion Platforms US, LLC is a registered MSB (NMLS ID 2523302) with broad money-transmitter-license coverage across the United States. Bastion has raised over $40M from a16z crypto, Coinbase Ventures, and others.

Bastion publishes 1 API on the APIs.io network. Tagged areas include Company, Stablecoins, Payments, Wallets, and Custody.

Bastion’s developer surface includes documentation, API reference, getting-started guide, signup flow, and 14 more developer resources.

🌐 Visit website 📡 Source on GitHub
29.6/100 emerging Agent 0/100 human only Full breakdown ↓
scored 2026-07-20 · rubric v0.4
1 APIs 0 Features
CompanyStablecoinsPaymentsWalletsCustodyWeb3ComplianceCrypto InfrastructureFinancial ServicesOn/Off-Ramps

API Rating

API Evangelist API Evangelist Rating How this is scored →
scored 2026-07-20 · rubric v0.4
Composite quality — 29.6/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 7.0 / 20
Commercial Clarity 10.0 / 20
Operational Transparency 3.4 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 0/100 · human only
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
MCP Server 0 / 12
Machine-Readable Auth 0 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
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/bastion: 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

Bastion API

Bastion's REST API for regulated stablecoin infrastructure: create and manage custodial wallets, issue and convert stablecoins, run on/off-ramps, and move digital assets, with b...

Resources

Get Started 3

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Lifecycle
Lifecycle
 Conformance
Conformance

Access & Security 5

Authentication, authorization, and security posture

VulnerabilityDisclosure
VulnerabilityDisclosure
 Security
Security
 Compliance
Compliance
 TrustCenter
TrustCenter
 DomainSecurity
DomainSecurity

Operate 1

Status, limits, changes, and where to get help

StatusPage
StatusPage

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 3

The organization behind the API

Careers
Careers
 Twitter
Twitter
 LinkedIn
LinkedIn

Source (apis.yml)

apis.yml Raw ↑ 
aid: bastion
name: Bastion
description: Bastion is a full-stack, regulated stablecoin infrastructure platform for enterprises and financial institutions.
  Founded in 2023 and based in Campbell, California by former a16z crypto leaders, Bastion lets companies securely issue,
  custody, move, and convert USD-backed stablecoins under Bastion's licenses or their own. Its API-first product suite spans
  a Regulated Wallet API (create unlimited custodial wallets with Cloud HSM and enclave-based key management), stablecoin
  issuance, on/off-ramps, and payments, plus Compliance-as-a-Service that handles KYC and AML. Bastion Platforms Trust Company,
  LLC is chartered as a limited purpose trust company by the New York State Department of Financial Services, and Bastion
  Platforms US, LLC is a registered MSB (NMLS ID 2523302) with broad money-transmitter-license coverage across the United
  States. Bastion has raised over $40M from a16z crypto, Coinbase Ventures, and others.
url: https://raw.githubusercontent.com/api-evangelist/bastion/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
x-tier: stub
x-tier-reason: portfolio-lead
image: https://framerusercontent.com/images/pTrMs5MJstsls9S7X45qlr99Pc.png
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Stablecoins
- Payments
- Wallets
- Custody
- Web3
- Compliance
- Crypto Infrastructure
- Financial Services
- On/Off-Ramps
apis:
- name: Bastion API
  description: 'Bastion''s REST API for regulated stablecoin infrastructure: create and manage custodial wallets, issue and
    convert stablecoins, run on/off-ramps, and move digital assets, with built-in KYC/AML compliance. Backed by Cloud HSM
    and enclave-based key management.'
  humanURL: https://docs.bastion.com/reference
  baseURL: https://api.prod.bastion.com/v2/
  tags:
  - Stablecoins
  - Wallets
  - Payments
  - Custody
  properties:
  - type: Documentation
    url: https://docs.bastion.com/
  - type: APIReference
    url: https://docs.bastion.com/reference
  - type: GettingStarted
    url: https://docs.bastion.com/recipes
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: VulnerabilityDisclosure
  url: security/bastion-vulnerability-disclosure.yml
- type: Security
  url: security/bastion-vulnerability-disclosure.yml
- type: DeveloperPortal
  url: https://bastion.com/
- type: Documentation
  url: https://docs.bastion.com/
- type: APIReference
  url: https://docs.bastion.com/reference
- type: GettingStarted
  url: https://docs.bastion.com/recipes
- type: StatusPage
  url: https://status.bastion.com/
- type: Compliance
  url: https://bastion.com/disclosures
- type: TrustCenter
  url: https://bastion.com/subprocessor-list
- type: TermsOfService
  url: https://bastion.com/terms-of-service
- type: PrivacyPolicy
  url: https://bastion.com/privacy-policy
- type: SignUp
  url: https://bastion.com/request-demo
- type: Careers
  url: https://bastion.com/careers
- type: Twitter
  url: https://x.com/Bastion
- type: LinkedIn
  url: https://www.linkedin.com/company/bastionplatforms
- type: Lifecycle
  url: lifecycle/bastion-lifecycle.yml
- type: DomainSecurity
  url: security/bastion-domain-security.yml
- type: Conformance
  url: conformance/bastion-conformance.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence