Merit Systems

Merit Systems builds the infrastructure for open agentic commerce — the discovery and payment rails that let AI agents find and pay for the APIs, data, and services they need. Merit originated the "open agentic commerce" framing and the x402 ecosystem index (x402scan), and ships a developer stack for pay-per-call APIs: AgentCash (an MCP server, CLI, and USDC wallet that lets any agent call payment-protected APIs over x402/MPP micropayments), @agentcash/router (a framework for building x402/MPP-compatible endpoints), the Echo "User Pays" AI SDK, and the Merit Terminal financial stack for funding open-source contributors and repositories. Backed by a $10M seed round led by a16z and Blockchain Capital.

Merit Systems publishes 6 APIs on the APIs.io network, including Balances API, Invite Codes API, Organizations API, and 3 more. Tagged areas include Company, Agentic Commerce, Payments, x402, and Micropayments.

Merit Systems’ developer surface includes documentation, API reference, getting-started guide, engineering blog, support, signup flow, CLI, and 23 more developer resources.

🌐 Visit website 📡 Source on GitHub
54.1/100 developing ▬ flat Agent 65/100 agent native Full breakdown ↓
scored 2026-07-27 · rubric v0.5
AccessSelf serve
6 APIs 1 MCP Servers
CompanyAgentic CommercePaymentsx402MicropaymentsModel Context ProtocolStablecoinsAPI DiscoveryOpen SourceDeveloper Tools

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-27 · rubric v0.5
Composite quality — 54.1/100 · developing
Contract Quality 13.4 / 25
Developer Ergonomics 17.4 / 20
Commercial Clarity 6.8 / 20
Operational Transparency 4.1 / 13
Governance 0.0 / 12
Discoverability 10.0 / 10
Agent readiness — 65/100 · agent native
Machine-Readable Contract 18 / 18
Agentic Access Contract 15 / 15
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 8 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 0 / 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/merit-systems: 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 6

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

Merit Systems Balances API

The Balances API from Merit Systems — 4 operation(s) for balances.

Merit Systems Invite Codes API

The Invite Codes API from Merit Systems — 1 operation(s) for invite codes.

Merit Systems Organizations API

The Organizations API from Merit Systems — 1 operation(s) for organizations.

Merit Systems Payments API

The Payments API from Merit Systems — 1 operation(s) for payments.

Merit Systems Search API

The Search API from Merit Systems — 1 operation(s) for search.

Merit Systems Send API

The Send API from Merit Systems — 1 operation(s) for send.

MCP Servers 1

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

merit-systems-mcp.yml

MCP SERVER

Security Posture 2

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

Merit Systems Authentication

apiKey/x402/mpp/siwx · 4 schemes

SECURITY

Merit Systems Vulnerability Disclosure

contact published

SECURITY

Agentic Access 1

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

Merit Systems Agentic Access

9 operations · 2 acting

9 operations · 2 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal
DeveloperPortal
 GettingStarted
GettingStarted
 SignUp
SignUp
 Sandbox
Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt
 MCPServer
MCPServer
 AgentSkill
AgentSkill
 AgenticAccess
AgenticAccess

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions
Conventions
 ErrorCatalog
ErrorCatalog
 DataModel
DataModel
 Lifecycle
Lifecycle
 Conformance
Conformance

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization
 Packages
Packages
 SDKs
SDKs
 CLI
CLI

Access & Security 3

Authentication, authorization, and security posture

Authentication
Authentication
 VulnerabilityDisclosure
VulnerabilityDisclosure
 Security
Security

Operate 2

Status, limits, changes, and where to get help

Support
Support
 ChangeLog
ChangeLog

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 2

The organization behind the API

Website
Website
 Blog
Blog

Other 2

Properties that don't map to a standard resource type

Overlay
Overlay
 Overlay
Overlay

Source (apis.yml)

apis.yml Raw ↑ 
aid: merit-systems
name: Merit Systems
description: 'Merit Systems builds the infrastructure for open agentic commerce — the discovery and payment rails that let
  AI agents find and pay for the APIs, data, and services they need. Merit originated the "open agentic commerce" framing
  and the x402 ecosystem index (x402scan), and ships a developer stack for pay-per-call APIs: AgentCash (an MCP server, CLI,
  and USDC wallet that lets any agent call payment-protected APIs over x402/MPP micropayments), @agentcash/router (a framework
  for building x402/MPP-compatible endpoints), the Echo "User Pays" AI SDK, and the Merit Terminal financial stack for funding
  open-source contributors and repositories. Backed by a $10M seed round led by a16z and Blockchain Capital.'
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://agentcash.dev/logo-light-striped.svg
url: https://raw.githubusercontent.com/api-evangelist/merit-systems/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- a16z
- Blockchain Capital
x-tier: enriched
x-tier-reason: portfolio-lead
specificationVersion: '0.20'
created: '2026-07-17'
modified: '2026-07-20'
tags:
- Company
- Agentic Commerce
- Payments
- x402
- Micropayments
- Model Context Protocol
- Stablecoins
- API Discovery
- Open Source
- Developer Tools
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
- FN: Merit Systems
  email: info@merit.systems
apis:
- aid: merit-systems:merit-systems-balances-api
  name: Merit Systems Balances API
  description: The Balances API from Merit Systems — 4 operation(s) for balances.
  humanURL: https://github.com/merit-systems/sdk/blob/master/api.md
  baseURL: https://api.merit.systems/v1
  tags:
  - Balances
  properties:
  - type: OpenAPI
    url: openapi/merit-systems-balances-api-openapi.yml
  - type: APIReference
    url: https://github.com/merit-systems/sdk/blob/master/api.md
  - type: Documentation
    url: https://agentcash.dev/docs
- aid: merit-systems:merit-systems-invite-codes-api
  name: Merit Systems Invite Codes API
  description: The Invite Codes API from Merit Systems — 1 operation(s) for invite codes.
  humanURL: https://github.com/merit-systems/sdk/blob/master/api.md
  baseURL: https://api.merit.systems/v1
  tags:
  - Invite Codes
  properties:
  - type: OpenAPI
    url: openapi/merit-systems-invite-codes-api-openapi.yml
  - type: APIReference
    url: https://github.com/merit-systems/sdk/blob/master/api.md
  - type: Documentation
    url: https://agentcash.dev/docs
- aid: merit-systems:merit-systems-organizations-api
  name: Merit Systems Organizations API
  description: The Organizations API from Merit Systems — 1 operation(s) for organizations.
  humanURL: https://github.com/merit-systems/sdk/blob/master/api.md
  baseURL: https://api.merit.systems/v1
  tags:
  - Organizations
  properties:
  - type: OpenAPI
    url: openapi/merit-systems-organizations-api-openapi.yml
  - type: APIReference
    url: https://github.com/merit-systems/sdk/blob/master/api.md
  - type: Documentation
    url: https://agentcash.dev/docs
- aid: merit-systems:merit-systems-payments-api
  name: Merit Systems Payments API
  description: The Payments API from Merit Systems — 1 operation(s) for payments.
  humanURL: https://github.com/merit-systems/sdk/blob/master/api.md
  baseURL: https://api.merit.systems/v1
  tags:
  - Payments
  properties:
  - type: OpenAPI
    url: openapi/merit-systems-payments-api-openapi.yml
  - type: APIReference
    url: https://github.com/merit-systems/sdk/blob/master/api.md
  - type: Documentation
    url: https://agentcash.dev/docs
- aid: merit-systems:merit-systems-search-api
  name: Merit Systems Search API
  description: The Search API from Merit Systems — 1 operation(s) for search.
  humanURL: https://github.com/merit-systems/sdk/blob/master/api.md
  baseURL: https://api.merit.systems/v1
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/merit-systems-search-api-openapi.yml
  - type: APIReference
    url: https://github.com/merit-systems/sdk/blob/master/api.md
  - type: Documentation
    url: https://agentcash.dev/docs
- aid: merit-systems:merit-systems-send-api
  name: Merit Systems Send API
  description: The Send API from Merit Systems — 1 operation(s) for send.
  humanURL: https://github.com/merit-systems/sdk/blob/master/api.md
  baseURL: https://api.merit.systems/v1
  tags:
  - Send
  properties:
  - type: OpenAPI
    url: openapi/merit-systems-send-api-openapi.yml
  - type: APIReference
    url: https://github.com/merit-systems/sdk/blob/master/api.md
  - type: Documentation
    url: https://agentcash.dev/docs
common:
- type: Website
  url: https://merit.systems
- type: DeveloperPortal
  url: https://agentcash.dev/docs
- type: Documentation
  url: https://agentcash.dev/docs
- type: APIReference
  url: https://github.com/merit-systems/sdk/blob/master/api.md
- type: GettingStarted
  url: https://agentcash.dev/install
- type: Blog
  url: https://merit.systems/blog
- type: GitHubOrganization
  url: https://github.com/merit-systems
- type: Support
  url: https://github.com/merit-systems/help-us
- type: SignUp
  url: https://agentcash.dev/onboard
- type: TermsOfService
  url: https://merit.systems/terms
- type: PrivacyPolicy
  url: https://merit.systems/privacy
- type: LLMsTxt
  url: llms/merit-systems-llms.txt
- type: Packages
  url: packages/merit-systems-packages.yml
- type: SDKs
  url: packages/merit-systems-packages.yml
- type: CLI
  url: cli/merit-systems-cli.yml
- type: MCPServer
  url: mcp/merit-systems-mcp.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Authentication
  url: authentication/merit-systems-authentication.yml
- type: Conventions
  url: conventions/merit-systems-conventions.yml
- type: ErrorCatalog
  url: errors/merit-systems-problem-types.yml
- type: DataModel
  url: data-model/merit-systems-data-model.yml
- type: Lifecycle
  url: lifecycle/merit-systems-lifecycle.yml
- type: ChangeLog
  url: changelog/merit-systems-changelog.yml
- type: Conformance
  url: conformance/merit-systems-conformance.yml
- type: AgenticAccess
  url: agentic-access/merit-systems-agentic-access.yml
- type: Sandbox
  url: sandbox/merit-systems-sandbox.yml
- type: VulnerabilityDisclosure
  url: security/merit-systems-vulnerability-disclosure.yml
- type: Security
  url: https://github.com/merit-systems/agentcash-router/blob/main/SECURITY.md
- type: Overlay
  url: overlays/merit-systems-agentcash-overlay.yaml
- type: Overlay
  url: overlays/merit-systems-merit-api-overlay.yaml
x-enrichment:
  date: '2026-07-20'
  status: enriched
  artifacts_added: 21
  pass: local-v1