Coinme
Coinme is a Seattle-based regulated cryptocurrency company that offers Crypto-as-a-Service (CaaS): modular API infrastructure that lets platforms embed crypto without building it from scratch. Its Crypto-as-a-Service API covers KYC/AML customer and business onboarding, executable and informational buy/sell quotes, buy/sell and sell-all transactions, custodial and external-wallet sends, crypto asset balances, cash on/off-ramp via barcode order templates at physical locations, transaction history and limits, supported chains, and location licensing. It ships an embeddable Widget, a PCI-scope-reducing Vault SDK for secure card capture, and a Risk Engine SDK for real-time fraud signals, plus HMAC-signed webhook notifications. Coinme is backed by Pantera Capital.
Solid contracts, transparent operations, and an easy start — typically complete on four or five facets with one clear soft spot.
API Evangelist profiles Coinme the way a machine reads it — 36 machine-readable artifacts across 28 APIs, pulled from the provider's own public surface and indexed so a developer, an analyst, or an AI agent can evaluate it against every other provider on the network.
Every provider in the network is reduced to the same set of machine-readable artifacts — OpenAPI contracts, event specifications, GraphQL schemas, runnable collections, pricing and rate-limit signals, security posture, OAuth scopes, and the agent surfaces (MCP servers and skills) that let software drive the API on its own. We profile them because the interface is the part of a company you can actually inspect: it is a truer signal of what a provider does than any marketing page. From those artifacts we compute the Kin Score — Coinme scores 61.5/100 (strong), with a separate agent-readiness read of 75/100 (agent native). The full breakdown is below, followed by every artifact we hold — each card links through to its machine-readable definition on apis.io.
Kin Score
This is the API Evangelist rating — a single, repeatable read computed from the artifacts on this page. Green fill is points earned; the red track is points possible, so every bar shows earned-versus-possible at a glance.
Kin Score
How this is scored →scored 2026-07-27 · rubric v0.5
How we profile Coinme
Each block below is one kind of artifact we hold for Coinme. For each we say what it is and why it earns a place in the profile, then list every one we've indexed — capped at two rows, scroll within the panel for the rest.
APIs 28
Each API is captured as its own OpenAPI definition — every operation, parameter, and response. This is the single most useful machine-readable description of what an API does, and it's what lets us score, lint, mock, and generate against it without asking the provider for anything.
Individual APIs this provider publishes, each with its own machine-readable definition.
Coinme AuthLinkResult API
The AuthLinkResult API from Coinme — 1 operation(s) for authlinkresult.
Coinme Authorize API
The Authorize API from Coinme — 1 operation(s) for authorize.
Coinme Businessonboarding API
The Businessonboarding API from Coinme — 1 operation(s) for businessonboarding.
Coinme Cryptoassetbalance API
The Cryptoassetbalance API from Coinme — 1 operation(s) for cryptoassetbalance.
Coinme CryptoChains API
The CryptoChains API from Coinme — 1 operation(s) for cryptochains.
Coinme Cryptoquote API
The Cryptoquote API from Coinme — 4 operation(s) for cryptoquote.
Coinme Customeronboarding API
The Customeronboarding API from Coinme — 1 operation(s) for customeronboarding.
Coinme Historiccryptodata API
The Historiccryptodata API from Coinme — 1 operation(s) for historiccryptodata.
Coinme Identity API
The Identity API from Coinme — 1 operation(s) for identity.
Coinme Locationlicensing API
The Locationlicensing API from Coinme — 1 operation(s) for locationlicensing.
Coinme Locations API
The Locations API from Coinme — 1 operation(s) for locations.
Coinme MobileAuth API
The MobileAuth API from Coinme — 1 operation(s) for mobileauth.
Coinme MobileAuthFinish API
The MobileAuthFinish API from Coinme — 1 operation(s) for mobileauthfinish.
Coinme Order Template API
The Order Template API from Coinme — 4 operation(s) for order template.
Coinme Paymentmethods API
The Paymentmethods API from Coinme — 3 operation(s) for paymentmethods.
Coinme Quote And Transaction API
The Quote And Transaction API from Coinme — 1 operation(s) for quote and transaction.
Coinme Send API
The Send API from Coinme — 1 operation(s) for send.
Coinme SendAuthSms API
The SendAuthSms API from Coinme — 1 operation(s) for sendauthsms.
Coinme Services API
The Services API from Coinme — 1 operation(s) for services.
Coinme SmsAuth API
The SmsAuth API from Coinme — 1 operation(s) for smsauth.
Coinme Submit Blockchain Id API
The Submit Blockchain Id API from Coinme — 1 operation(s) for submit blockchain id.
Coinme Transaction API
The Transaction API from Coinme — 1 operation(s) for transaction.
Coinme Transactionhistory API
The Transactionhistory API from Coinme — 1 operation(s) for transactionhistory.
Coinme Transactionlimits API
The Transactionlimits API from Coinme — 1 operation(s) for transactionlimits.
Coinme Transactions API
The Transactions API from Coinme — 1 operation(s) for transactions.
Coinme Verify API
The Verify API from Coinme — 1 operation(s) for verify.
Coinme Wallets API
The Wallets API from Coinme — 2 operation(s) for wallets.
Coinme Widget API
The Widget API from Coinme — 1 operation(s) for widget.
Scroll within the panel for all 28 ·
Arazzo Workflows 2
Real integrations are rarely a single call. Arazzo describes the multi-step sequences — auth, then create, then confirm — so both a human and an agent can follow the choreography, not just the endpoints.
Multi-step API workflows described with the Arazzo specification.
_Index
ARAZZOCoinme — onboard a customer and buy crypto
Authorize as a partner, KYC-onboard an end user, create an executable buy quote, and execute it against the quote. Operation ids are verified against openapi/coinme-caas-openapi...
ARAZZOMCP Servers 1
Model Context Protocol servers expose these APIs directly to AI agents. We profile them because agent-native access is the fastest-growing way this provider's capabilities actually get used.
Model Context Protocol servers that expose these APIs to AI agents.
coinme-mcp.yml
MCP SERVEREvent Specifications 1
Not every API is request/response. AsyncAPI describes the event-driven and streaming side — the webhooks and channels — so the asynchronous half of the interface is documented the same way the synchronous half is.
AsyncAPI definitions for this provider's event-driven and streaming APIs.
Coinme Webhooks
ASYNCAPISecurity Posture 2
Authentication, domain security, vulnerability disclosure, and trust-center signals — the evidence that a provider takes security seriously enough to document it. We profile it because you can't govern what you can't see.
Authentication, domain security, vulnerability disclosure, and trust-center signals.
Scopes 1
OAuth scopes are the vocabulary of least-privilege access. Profiling them shows exactly what an integration — or an agent acting on a user's behalf — is allowed to do.
OAuth scopes governing access to this provider's APIs.
Agentic Access 1
An x-agentic-access contract marks which operations are safe for an agent to run on its own and which need a human in the loop. It is the difference between an API an agent can use and one it can use safely.
Recommended x-agentic-access execution contracts for AI agents.
Resources
Every other property we hold for Coinme — documentation, portals, status pages, policies, and corporate surface — grouped by the job it does, following the integrator's arc from getting started to running in production.
Get Started 5
Portal, sign-up, and the first successful call
Documentation 2
Reference material describing how the API behaves
Agent Surfaces 5
MCP servers, agent skills, and machine-readable catalogs
Design & Contract 7
Pagination, idempotency, versioning, errors, and events
Scroll within the panel for all 7 ·
Build 2
SDKs, sample code, and the tooling you integrate with
Access & Security 4
Authentication, authorization, and security posture
Operate 2
Status, limits, changes, and where to get help
Commercial 3
Pricing, plans, and the legal terms of use
Company 2
The organization behind the API
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