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 API contracts indexed 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.

The Merit Systems catalog on APIs.io includes 1 Spectral governance ruleset.

Merit Systems’ developer surface includes documentation, API reference, getting-started guide, engineering blog, support, signup flow, CLI, and 24 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

47.8/100 developing ▬ flat Agent 33/100 agent ready Front door AI 4/6 moderate Heartbeat 60/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

2 published contracts 1 MCP Servers 1 Agent Skills

Company Agentic Commerce Payments x402 Micropayments MCP Stablecoins API Discovery Open Source Developer Tools Fintech

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 47.8/100 · developing

Contract Quality 7.4 / 19

Developer Ergonomics 12.9 / 15

Access Clarity 5.1 / 15

Operational Transparency 2.8 / 10

Contract Governance 1.6 / 9

Discoverability 5.6 / 8

Regulatory Posture 4.2 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 33/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

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

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 5 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Payments regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)

6 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 39.5 — up to +15.1 composite points
Access Clarity scores 34.2 — up to +13.2 composite points
Contract Governance scores 18.2 — up to +9.8 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/merit-systems/apis.yml: open an issue on github.com/api-evangelist/merit-systems to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Agent Skills (SKILL.md packages)	standard	58.1	-	1
Stablecoins and Tokenization (stablecoin issuers, tokenized assets)	standard	58.1	-	1
x402 Micropayments & Agentic Pay-per-Call	standard	58.1	-	1

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 4

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

x402

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

Agent Skills

measured — observed by APIs.io (published)

OpenAPI

measured — observed by APIs.io (published)

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.

Open Collections 6

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

AgentCash Balances API

OPEN COLLECTION

AgentCash Balances Invite Codes API

OPEN COLLECTION

AgentCash Balances Organizations API

OPEN COLLECTION

AgentCash Balances Payments API

OPEN COLLECTION

AgentCash Balances Search API

OPEN COLLECTION

AgentCash Balances Send API

OPEN COLLECTION

MCP Servers 1

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

Merit Systems MCP Server

Remote MCP server at x402scan.com.

MCP SERVER

Agent Skills 1

Packaged agent skills for driving this provider's APIs from an AI assistant.

agentcash-onboarding

AGENT SKILL

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Merit Systems API Rules

54 rules · 51 errors 1 warnings 2 info

SPECTRAL

OpenAPI Overlays 2

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Merit Systems Agentcash Overlay

2 actions · update · merit-systems-agentcash-openapi.json

DERIVED

Merit Systems Merit Api Overlay

2 actions · update · merit-systems-merit-api-openapi.yml

DERIVED

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

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

GettingStarted

SignUp

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

MCPServer

AgentSkill

AgenticAccess

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

DataModel

Lifecycle

Conformance

Build 4

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

Packages

SDKs

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 3

The organization behind the API

BlogRSS

BlogRSS

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Overlay

Overlay

Overlay

Overlay

Source (apis.yml)

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.'
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  - sandbox
  generated: '2026-11-06'
  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: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
tags:
- Company
- Agentic Commerce
- Payments
- x402
- Micropayments
- MCP
- Stablecoins
- API Discovery
- Open Source
- Developer Tools
- Fintech
tags_raw:
- Company
- Agentic Commerce
- Payments
- x402
- Micropayments
- Model Context Protocol
- Stablecoins
- API Discovery
- Open Source
- Developer Tools
- Open-Source
- Fintech
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:
  - Organization
  tags_raw:
  - 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:
- url: https://merit.systems/blog/rss.xml
  type: BlogRSS
- 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
x-x402:
  verified: true
  probed: '2026-09-24'
  url: https://agentcash.dev/api/organizations
  evidence:
  - header:payment-required
  - body:x402Version
  control: 404

Merit Systems API — frequently asked questions

Does Merit Systems have an API?

Yes. APIs.io lists 6 APIs from Merit Systems, including Merit Systems Balances API, Merit Systems Invite Codes API and Merit Systems Organizations API, and 3 more.

Is there an OpenAPI specification for the Merit Systems API?

Yes. APIs.io indexes 6 OpenAPI specifications for Merit Systems, each linked for download from this page.

How do I authenticate with the Merit Systems API?

Merit Systems uses bearer-token authentication (apiKey/x402/mpp/siwx · 4 schemes). The details are profiled on APIs.io as Merit Systems Authentication.

Does Merit Systems have an MCP server?

Yes. APIs.io lists 1 MCP server for Merit Systems: Remote MCP server at x402scan.com.

Is the Merit Systems API ready for AI agents?

Merit Systems has a Kin Score of 47.8 out of 100 (developing) and an Agent Readiness score of 32.5 (agent-ready), scored by API Evangelist on 2026-11-06.

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