Code website screenshot

Code

Code is an open, self-custodial payments protocol and mobile wallet built on the Solana blockchain. Its SDK lets any web developer embed a "Pay with Code" button and accept permissionless micropayments — as little as 5 cents per transaction plus a flat 1-cent blockchain fee — with no sign-up required and just a few lines of code. The API is defined as gRPC/Protobuf services (code-protobuf-api): clients sign transaction intents with a self-custodial Ed25519 keypair, payments are created as idempotent payment intents, and completion is confirmed server-side or via JWT-signed webhooks. The entire stack — SDKs (JavaScript, Go, Python, PHP), the Code VM, and the on-chain Solana programs — is open source under the code-payments GitHub org. Code was seeded by Union Square Ventures.

Code publishes 1 API on the APIs.io network. Tagged areas include Company, Payments, Micropayments, Wallet, and Solana.

The Code catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Code’s developer surface includes documentation, API reference, getting-started guide, support, authentication, changelog, and 17 more developer resources.

33.6/100 thin ▬ flat Agent 48/100 agent ready Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessOpen
1 APIs 1 MCP Servers
CompanyPaymentsMicropaymentsWalletSolanaBlockchainCryptocurrencygRPCSelf-Custodial

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 33.6/100 · thin
Contract Quality 5.7 / 25
Developer Ergonomics 14.3 / 20
Commercial Clarity 0.0 / 20
Operational Transparency 3.8 / 13
Governance 0.0 / 12
Discoverability 9.3 / 10
Agent readiness — 48/100 · agent ready
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 15
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 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/code: 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.

Code Protobuf API

The Code payments gRPC/Protobuf API — account, currency, messaging, and transaction (intent/swap) services that power the Code wallet and SDK.

MCP Servers 1

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

code-mcp.yml

MCP SERVER

Event Specifications 1

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

Code Webhooks

ASYNCAPI

Security Posture 2

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

Code Authentication

self-custodial-keypair/jwt · 2 schemes

SECURITY

Code Domain Security

DMARC

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

Documentation 2

Reference material describing how the API behaves

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 8

Pagination, idempotency, versioning, errors, and events

Scroll for all 8

Build 3

SDKs, sample code, and the tooling you integrate with

Access & Security 2

Authentication, authorization, and security posture

Operate 2

Status, limits, changes, and where to get help

Company 1

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: code
name: Code
description: 'Code is an open, self-custodial payments protocol and mobile wallet built on the Solana blockchain. Its SDK
  lets any web developer embed a "Pay with Code" button and accept permissionless micropayments — as little as 5 cents per
  transaction plus a flat 1-cent blockchain fee — with no sign-up required and just a few lines of code. The API is defined
  as gRPC/Protobuf services (code-protobuf-api): clients sign transaction intents with a self-custodial Ed25519 keypair, payments
  are created as idempotent payment intents, and completion is confirmed server-side or via JWT-signed webhooks. The entire
  stack — SDKs (JavaScript, Go, Python, PHP), the Code VM, and the on-chain Solana programs — is open source under the code-payments
  GitHub org. Code was seeded by Union Square Ventures.'
url: https://raw.githubusercontent.com/api-evangelist/code/refs/heads/main/apis.yml
accessModel:
  pricing: unknown
  onboarding: open
  trial: false
  try_now: false
  public: true
  label: Open access
  confidence: medium
  source:
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://avatars.githubusercontent.com/u/151064663?v=4
x-type: company
x-source: vc-portfolio
x-backed-by:
- union-square-ventures
x-tier: stub
x-tier-reason: portfolio-lead
x-status-note: getcode.com and the hosted gRPC endpoint (api.codeinfra.net) were unreachable at enrichment time (2026-07-18;
  getcode.com CAA forbids cert issuance). The living developer surface is the open-source code-payments GitHub org and its
  GitHub Pages docs; the project has evolved toward the Open Code Protocol (OCP) and Flipcash.
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-18'
tags:
- Company
- Payments
- Micropayments
- Wallet
- Solana
- Blockchain
- Cryptocurrency
- gRPC
- Self-Custodial
apis:
- name: Code Protobuf API
  description: The Code payments gRPC/Protobuf API — account, currency, messaging, and transaction (intent/swap) services
    that power the Code wallet and SDK.
  humanURL: https://code-payments.github.io/code-sdk/docs/
  baseURL: https://api.codeinfra.net:443
  tags:
  - Payments
  - gRPC
  - Protobuf
  properties:
  - type: Protobuf
    name: Account service (v1)
    url: grpc/code-account-v1.proto
  - type: Protobuf
    name: Currency service (v1)
    url: grpc/code-currency-v1.proto
  - type: Protobuf
    name: Messaging service (v1)
    url: grpc/code-messaging-v1.proto
  - type: Protobuf
    name: Transaction service (v2)
    url: grpc/code-transaction-v2.proto
  - type: Protobuf
    name: Common models (v1)
    url: grpc/code-common-v1.proto
  - type: Documentation
    url: https://code-payments.github.io/code-sdk/docs/
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Website
  url: https://getcode.com
- type: DeveloperPortal
  url: https://code-payments.github.io/code-sdk/docs/
- type: Documentation
  url: https://code-payments.github.io/code-sdk/docs/guide/introduction.html
- type: APIReference
  url: https://code-payments.github.io/code-sdk/docs/reference/app.html
- type: GettingStarted
  url: https://code-payments.github.io/code-sdk/docs/guide/quick-start.html
- type: GitHubOrganization
  url: https://github.com/code-payments
- type: Support
  url: https://discord.gg/T8Tpj8DBFp
- type: Packages
  url: packages/code-packages.yml
- type: SDKs
  url: packages/code-packages.yml
- type: Components
  url: components/code-components.yml
- type: Authentication
  url: authentication/code-authentication.yml
- type: Conventions
  url: conventions/code-conventions.yml
- type: Idempotency
  url: conventions/code-conventions.yml
- type: Webhooks
  url: asyncapi/code-webhooks.yml
- type: ErrorCatalog
  url: errors/code-problem-types.yml
- type: Conformance
  url: conformance/code-conformance.yml
- type: DataModel
  url: data-model/code-data-model.yml
- type: Lifecycle
  url: lifecycle/code-lifecycle.yml
- type: ChangeLog
  url: changelog/code-changelog.yml
- type: MCPServer
  url: mcp/code-mcp.yml
- type: LLMsTxt
  url: llms/code-llms.txt
- type: AgentSkill
  url: skills/_index.yml
- type: DomainSecurity
  url: security/code-domain-security.yml
x-enrichment:
  date: '2026-07-19'
  status: backfilled
  pass: local-v1
  note: backfilled from .gitignore signal + verified work evidence