Gvnr

Gvnr provides budget and spend control for AI agents, enforcing per‑agent USD caps, cost limits, and rate limits before each LLM/API call. It offers a hosted MCP endpoint settled in USDC on Base, with no proxy or self‑hosting required. The platform aims to help developers manage AI costs and ensure financial governance across deployments.

Gvnr publishes 8 API contracts indexed on the APIs.io network, including Account API, Approval API, Approve API, and 5 more. Tagged areas include Artificial Intelligence, Budgets, SpendControl, MCP, and Finance.

The Gvnr catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Gvnr’s developer surface includes authentication, documentation, pricing, and 17 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

31.6/100 thin Agent 29/100 agent ready Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

1 published contract

Artificial Intelligence BudgetsSpendControlMCP Finance

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 31.6/100 · thin

Contract Quality 10.0 / 21

Developer Ergonomics 3.6 / 17

Access Clarity 2.9 / 17

Operational Transparency 2.1 / 11

Contract Governance 2.2 / 10

Discoverability 6.2 / 9

Regulatory Posture 2.0 / 15

Agent readiness — 29/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 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 0 / 5

Well-Known Catalog 4 / 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 5 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) 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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/gvnr-dev/"><img src="https://apis.io/badge/gvnr-dev/card.svg" alt="Gvnr on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

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

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship Ask about this →
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) Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →
Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented) Ask about this →
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link Ask about this →
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document Ask about this →

7 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 17.0 — up to +16.6 composite points Ask about this →
Developer Ergonomics scores 21.4 — up to +15.7 composite points Ask about this →
Contract Quality scores 46.9 — up to +13.3 composite points Ask about this →

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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/gvnr-dev/apis.yml: open an issue on github.com/api-evangelist/gvnr-dev 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 →

Standards implemented 2

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.

OAuth 2.0 Protected Resource Metadata

measured — observed by APIs.io (documented)

OpenAPI

measured — observed by APIs.io (published)

APIs 8

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

Gvnr Account API

The Account API from Gvnr — 7 operation(s) for account.

Gvnr Approval API

The Approval API from Gvnr — 2 operation(s) for approval.

Gvnr Approve API

The Approve API from Gvnr — 2 operation(s) for approve.

Gvnr Budget API

The Budget API from Gvnr — 4 operation(s) for budget.

Gvnr Idempotency API

The Idempotency API from Gvnr — 1 operation(s) for idempotency.

Gvnr MCP API

The Mcp API from Gvnr — 1 operation(s) for mcp.

Gvnr Packs API

The Packs API from Gvnr — 1 operation(s) for packs.

Gvnr Rate API

The Rate API from Gvnr — 3 operation(s) for rate.

Scroll for all 8

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Gvnr Dev Context

1 classes · 9 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

Gvnr API Rules

41 rules · 37 error-severity 2 warn-severity 2 info-severity

SPECTRAL

Security Posture 2

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

Gvnr Authentication

http · 1 scheme

SECURITY

Gvnr Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Agentic Access (API Evangelist recommendations) 1

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

Gvnr Agentic Access

25 operations · 18 acting

AGENTIC

Resources

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

OpenAPI

OpenAPI

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

WellKnown

WellKnown

MCP

MCP

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

ErrorCatalog

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

SourceCode

SourceCode

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

StatusPage

StatusPage

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

Pricing

Pricing

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: gvnr-dev
name: Gvnr
description: Gvnr provides budget and spend control for AI agents, enforcing per‑agent USD caps, cost limits, and rate limits
  before each LLM/API call. It offers a hosted MCP endpoint settled in USDC on Base, with no proxy or self‑hosting required.
  The platform aims to help developers manage AI costs and ensure financial governance across deployments.
url: https://artifacts.apis.io/gvnr-dev/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-10 (modular-v1; was harvest)
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  generated: '2026-11-13'
  method: derived
specificationVersion: '0.20'
created: '2026-11-10'
modified: '2026-11-10'
tags:
- Artificial Intelligence
- Budgets
- SpendControl
- MCP
- Finance
tags_raw:
- AI
- Budget
- SpendControl
- MCP
- Finance
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/gvnr-dev-agentic-access.yml
- type: Spectral
  url: rules/gvnr-dev-rules.yml
- type: JSONLD
  url: json-ld/gvnr-dev-context.jsonld
- type: Vocabulary
  url: vocabulary/gvnr-dev-vocabulary.yml
- type: DataModel
  url: data-model/gvnr-dev-data-model.yml
- type: ErrorCatalog
  url: errors/gvnr-dev-problem-types.yml
- type: Conformance
  url: conformance/gvnr-dev-conformance.yml
- type: WellKnown
  url: well-known/gvnr-dev-well-known.yml
- type: Hosts
  url: hosts/gvnr-dev-hosts.yml
- type: Vendors
  url: vendors/gvnr-dev-vendors.yml
- type: TermsOfService
  url: https://gvnr.dev/tos
- type: Authentication
  url: authentication/gvnr-dev-authentication.yml
- type: DomainSecurity
  url: security/gvnr-dev-domain-security.yml
- type: Website
  url: https://gvnr.dev/
- type: Documentation
  url: https://gvnr.dev/#quickstart
- type: Pricing
  url: https://gvnr.dev/#pricing
- type: StatusPage
  url: https://gvnr.dev/status
- type: OpenAPI
  url: https://gvnr.dev/openapi.json
- type: MCP
  url: https://gvnr.dev/.well-known/mcp.json
- type: SourceCode
  url: https://github.com/mightbesaad/gvnr
apis:
- aid: gvnr-dev:gvnr-dev-account-api
  name: Gvnr Account API
  description: The Account API from Gvnr — 7 operation(s) for account.
  humanURL: https://gvnr.dev/
  baseURL: https://gvnr.dev
  tags:
  - Account
  properties:
  - type: OpenAPI
    url: openapi/gvnr-dev-account-api-openapi.yml
- aid: gvnr-dev:gvnr-dev-approval-api
  name: Gvnr Approval API
  description: The Approval API from Gvnr — 2 operation(s) for approval.
  humanURL: https://gvnr.dev/
  baseURL: https://gvnr.dev
  tags:
  - Approval
  properties:
  - type: OpenAPI
    url: openapi/gvnr-dev-approval-api-openapi.yml
- aid: gvnr-dev:gvnr-dev-approve-api
  name: Gvnr Approve API
  description: The Approve API from Gvnr — 2 operation(s) for approve.
  humanURL: https://gvnr.dev/
  baseURL: https://gvnr.dev
  tags:
  - Approve
  properties:
  - type: OpenAPI
    url: openapi/gvnr-dev-approve-api-openapi.yml
- aid: gvnr-dev:gvnr-dev-budget-api
  name: Gvnr Budget API
  description: The Budget API from Gvnr — 4 operation(s) for budget.
  humanURL: https://gvnr.dev/
  baseURL: https://gvnr.dev
  tags:
  - Budgets
  tags_raw:
  - Budget
  properties:
  - type: OpenAPI
    url: openapi/gvnr-dev-budget-api-openapi.yml
- aid: gvnr-dev:gvnr-dev-idempotency-api
  name: Gvnr Idempotency API
  description: The Idempotency API from Gvnr — 1 operation(s) for idempotency.
  humanURL: https://gvnr.dev/
  baseURL: https://gvnr.dev
  tags:
  - Idempotency
  properties:
  - type: OpenAPI
    url: openapi/gvnr-dev-idempotency-api-openapi.yml
- aid: gvnr-dev:gvnr-dev-mcp-api
  name: Gvnr MCP API
  description: The Mcp API from Gvnr — 1 operation(s) for mcp.
  humanURL: https://gvnr.dev/
  baseURL: https://gvnr.dev
  tags:
  - MCP
  tags_raw:
  - Mcp
  properties:
  - type: OpenAPI
    url: openapi/gvnr-dev-mcp-api-openapi.yml
- aid: gvnr-dev:gvnr-dev-packs-api
  name: Gvnr Packs API
  description: The Packs API from Gvnr — 1 operation(s) for packs.
  humanURL: https://gvnr.dev/
  baseURL: https://gvnr.dev
  tags:
  - Packs
  properties:
  - type: OpenAPI
    url: openapi/gvnr-dev-packs-api-openapi.yml
- aid: gvnr-dev:gvnr-dev-rate-api
  name: Gvnr Rate API
  description: The Rate API from Gvnr — 3 operation(s) for rate.
  humanURL: https://gvnr.dev/
  baseURL: https://gvnr.dev
  tags:
  - Rate
  properties:
  - type: OpenAPI
    url: openapi/gvnr-dev-rate-api-openapi.yml
x-enrichment:
  date: '2026-11-10'
  status: enriched
  artifacts_added: 20
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Gvnr API — frequently asked questions

Does Gvnr have an API?

Yes. APIs.io lists 8 APIs from Gvnr, including Gvnr Account API, Gvnr Approval API and Gvnr Approve API, and 5 more.

Is there an OpenAPI specification for the Gvnr API?

Yes. APIs.io indexes 8 OpenAPI specifications for Gvnr, each linked for download from this page.

How do I authenticate with the Gvnr API?

Gvnr uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Gvnr Authentication.

Is the Gvnr API ready for AI agents?

Gvnr has a Kin Score of 31.6 out of 100 (thin) and an Agent Readiness score of 29.2 (agent-ready), scored by API Evangelist on 2026-11-13.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/gvnr-dev"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/gvnr-dev/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/gvnr-dev/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.