Crossmint website screenshot

Crossmint

Crossmint is a Web3 platform offering APIs for wallets, NFT minting, checkout, payments, embedded checkout, and verifiable credentials. Supports server-managed wallets across EVM and Solana, fiat-on-ramp checkout, and credit-card-funded NFT purchases.

Crossmint publishes 7 APIs on the APIs.io network, including Balances API, NFTs API, Signatures API, and 4 more. Tagged areas include Web3, Wallets, NFT, Payments, and Checkout.

Crossmint’s developer surface includes authentication and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub
33.3/100 thin ▬ flat Agent 39/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessPaidSelf serve
12 APIs
Web3WalletsNFTPaymentsCheckout

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 33.3/100 · thin
Contract Quality 13.4 / 25
Developer Ergonomics 2.2 / 20
Commercial Clarity 7.9 / 20
Operational Transparency 3.4 / 13
Governance 0.0 / 12
Discoverability 7.4 / 10
Agent readiness — 39/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 9 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 7 / 7
Typed Event Surface 0 / 6
Agent Skills 0 / 5
Well-Known Catalog 0 / 4
Consent & Bot Identity 0 / 3
A2A Agent Card 0 / 8
Dry-Run / Simulate Mode 0 / 4
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/crossmint: 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 12

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

Crossmint Wallets API

REST API to create and manage server-side custodial and non-custodial smart wallets across EVM and Solana, sign transactions, manage delegated permissions.

Crossmint Minting API

REST API to mint and manage NFTs on multiple chains, including collection creation, batch minting, and metadata management.

Crossmint Checkout API

REST API for hosted and headless checkout flows allowing credit-card and crypto purchases of NFTs.

Crossmint Verifiable Credentials API

REST API to issue, manage, and verify verifiable credentials anchored on chain.

Crossmint Headless Checkout (Order API)

REST Order API for fully headless on-chain commerce flows including fiat and crypto payment intents.

Crossmint Balances API

The Balances API from Crossmint — 1 operation(s) for balances.

Crossmint NFTs API

The NFTs API from Crossmint — 1 operation(s) for nfts.

Crossmint Signatures API

The Signatures API from Crossmint — 3 operation(s) for signatures.

Crossmint Signers API

The Signers API from Crossmint — 2 operation(s) for signers.

Crossmint Transactions API

The Transactions API from Crossmint — 3 operation(s) for transactions.

Crossmint Transfers API

The Transfers API from Crossmint — 2 operation(s) for transfers.

Crossmint Wallets API

The Wallets API from Crossmint — 2 operation(s) for wallets.

Scroll for all 12

Open Collections 1

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

Crossmint Wallets API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Crossmint Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Crossmint Rate Limits

1 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

Crossmint Finops

FINOPS

Security Posture 3

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

Crossmint Authentication

apiKey · 1 scheme

SECURITY

Crossmint Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Crossmint Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

Crossmint Agentic Access

18 operations · 8 acting

18 operations · 8 acting

AGENTIC

Resources

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess
AgenticAccess
 LlmsText
LlmsText

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits
RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans
Plans
 FinOps
FinOps

Company 2

The organization behind the API

LinkedIn
LinkedIn
 Website
Website

Source (apis.yml)

apis.yml Raw ↑ 
aid: crossmint
url: https://raw.githubusercontent.com/api-evangelist/crossmint/refs/heads/main/apis.yml
name: Crossmint
kind: company
description: Crossmint is a Web3 platform offering APIs for wallets, NFT minting, checkout, payments, embedded checkout, and
  verifiable credentials. Supports server-managed wallets across EVM and Solana, fiat-on-ramp checkout, and credit-card-funded
  NFT purchases.
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Paid · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/crossmint.png
tags:
- Web3
- Wallets
- NFT
- Payments
- Checkout
created: '2026-05-08'
modified: '2026-05-08'
specificationVersion: '0.19'
apis:
- aid: crossmint:wallets-api
  name: Crossmint Wallets API
  description: REST API to create and manage server-side custodial and non-custodial smart wallets across EVM and Solana,
    sign transactions, manage delegated permissions.
  humanURL: https://docs.crossmint.com/wallets/introduction
  baseURL: https://staging.crossmint.com/api/2022-06-09 (staging) | https://www.crossmint.com/api/2022-06-09 (prod)
  tags:
  - REST
  - Wallets
  - Smart Wallets
  properties:
  - type: Documentation
    url: https://docs.crossmint.com/wallets/introduction
- aid: crossmint:minting-api
  name: Crossmint Minting API
  description: REST API to mint and manage NFTs on multiple chains, including collection creation, batch minting, and metadata
    management.
  humanURL: https://docs.crossmint.com/minting/introduction
  baseURL: https://www.crossmint.com/api/2022-06-09
  tags:
  - REST
  - NFT
  - Minting
  properties:
  - type: Documentation
    url: https://docs.crossmint.com/minting/introduction
- aid: crossmint:checkout-api
  name: Crossmint Checkout API
  description: REST API for hosted and headless checkout flows allowing credit-card and crypto purchases of NFTs.
  humanURL: https://docs.crossmint.com/payments/introduction
  baseURL: https://www.crossmint.com/api/2022-06-09
  tags:
  - REST
  - Checkout
  - Payments
  properties:
  - type: Documentation
    url: https://docs.crossmint.com/payments/introduction
- aid: crossmint:credentials-api
  name: Crossmint Verifiable Credentials API
  description: REST API to issue, manage, and verify verifiable credentials anchored on chain.
  humanURL: https://docs.crossmint.com/verifiable-credentials/introduction
  baseURL: https://www.crossmint.com/api/v1-alpha1/credentials
  tags:
  - REST
  - Credentials
  - VC
  properties:
  - type: Documentation
    url: https://docs.crossmint.com/verifiable-credentials/introduction
- aid: crossmint:headless-checkout
  name: Crossmint Headless Checkout (Order API)
  description: REST Order API for fully headless on-chain commerce flows including fiat and crypto payment intents.
  humanURL: https://docs.crossmint.com/payments/headless/overview
  baseURL: https://www.crossmint.com/api/2022-06-09/orders
  tags:
  - REST
  - Order
  properties:
  - type: Documentation
    url: https://docs.crossmint.com/payments/headless/overview
- aid: crossmint:crossmint-balances-api
  name: Crossmint Balances API
  description: The Balances API from Crossmint — 1 operation(s) for balances.
  humanURL: https://docs.crossmint.com/wallets/introduction
  baseURL: https://staging.crossmint.com/api/2022-06-09 (staging) | https://www.crossmint.com/api/2022-06-09 (prod)
  tags:
  - Balances
  properties:
  - type: OpenAPI
    url: openapi/crossmint-balances-api-openapi.yml
- aid: crossmint:crossmint-nfts-api
  name: Crossmint NFTs API
  description: The NFTs API from Crossmint — 1 operation(s) for nfts.
  humanURL: https://docs.crossmint.com/wallets/introduction
  baseURL: https://staging.crossmint.com/api/2022-06-09 (staging) | https://www.crossmint.com/api/2022-06-09 (prod)
  tags:
  - NFTs
  properties:
  - type: OpenAPI
    url: openapi/crossmint-nfts-api-openapi.yml
- aid: crossmint:crossmint-signatures-api
  name: Crossmint Signatures API
  description: The Signatures API from Crossmint — 3 operation(s) for signatures.
  humanURL: https://docs.crossmint.com/wallets/introduction
  baseURL: https://staging.crossmint.com/api/2022-06-09 (staging) | https://www.crossmint.com/api/2022-06-09 (prod)
  tags:
  - Signatures
  properties:
  - type: OpenAPI
    url: openapi/crossmint-signatures-api-openapi.yml
- aid: crossmint:crossmint-signers-api
  name: Crossmint Signers API
  description: The Signers API from Crossmint — 2 operation(s) for signers.
  humanURL: https://docs.crossmint.com/wallets/introduction
  baseURL: https://staging.crossmint.com/api/2022-06-09 (staging) | https://www.crossmint.com/api/2022-06-09 (prod)
  tags:
  - Signers
  properties:
  - type: OpenAPI
    url: openapi/crossmint-signers-api-openapi.yml
- aid: crossmint:crossmint-transactions-api
  name: Crossmint Transactions API
  description: The Transactions API from Crossmint — 3 operation(s) for transactions.
  humanURL: https://docs.crossmint.com/wallets/introduction
  baseURL: https://staging.crossmint.com/api/2022-06-09 (staging) | https://www.crossmint.com/api/2022-06-09 (prod)
  tags:
  - Transactions
  properties:
  - type: OpenAPI
    url: openapi/crossmint-transactions-api-openapi.yml
- aid: crossmint:crossmint-transfers-api
  name: Crossmint Transfers API
  description: The Transfers API from Crossmint — 2 operation(s) for transfers.
  humanURL: https://docs.crossmint.com/wallets/introduction
  baseURL: https://staging.crossmint.com/api/2022-06-09 (staging) | https://www.crossmint.com/api/2022-06-09 (prod)
  tags:
  - Transfers
  properties:
  - type: OpenAPI
    url: openapi/crossmint-transfers-api-openapi.yml
- aid: crossmint:crossmint-wallets-api
  name: Crossmint Wallets API
  description: The Wallets API from Crossmint — 2 operation(s) for wallets.
  humanURL: https://docs.crossmint.com/wallets/introduction
  baseURL: https://staging.crossmint.com/api/2022-06-09 (staging) | https://www.crossmint.com/api/2022-06-09 (prod)
  tags:
  - Wallets
  properties:
  - type: OpenAPI
    url: openapi/crossmint-wallets-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/crossmint-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/crossmint-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/crossmint-domain-security.yml
- type: Authentication
  url: authentication/crossmint-authentication.yml
- type: GitHubOrganization
  url: https://github.com/crossmint
- type: LinkedIn
  url: https://www.linkedin.com/company/crossmint-io
- type: Website
  url: https://www.crossmint.com/
- type: Plans
  url: plans/crossmint-plans-pricing.yml
- type: RateLimits
  url: rate-limits/crossmint-rate-limits.yml
- type: FinOps
  url: finops/crossmint-finops.yml
- type: LlmsText
  url: https://docs.crossmint.com/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com