Budgetary

Budgetary provides a pre‑flight token‑spend estimate tool for AI coding agents. The service returns a token range, scenario, and confidence signal before a coding task runs, and reports "no read" when it lacks coverage. It is offered free and without usage limits, and integrates via an MCP server or plugins for agents such as Claude Code, VS Code, and others.

Budgetary publishes 1 API contract indexed on the APIs.io network. Tagged areas include AI Coding, MCP Server, and Free Tier.

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

Budgetary’s developer surface includes API reference, getting-started guide, and 18 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

17.3/100 emerging Agent 1/100 human only Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract

AI Coding MCP Server Free Tier

Kin Score

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

Composite quality — 17.3/100 · emerging

Contract Quality 3.1 / 21

Developer Ergonomics 2.8 / 17

Access Clarity 0.9 / 17

Operational Transparency 0.6 / 11

Contract Governance 2.2 / 10

Discoverability 4.6 / 9

Regulatory Posture 2.8 / 15

Agent readiness — 1/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 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 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 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/.

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

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
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

12 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 14.7 — up to +21.3 composite points
Access Clarity scores 5.3 — up to +18.9 composite points
Developer Ergonomics scores 16.7 — up to +16.7 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/budgetary-tools/apis.yml: open an issue on github.com/api-evangelist/budgetary-tools 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 →

APIs 1

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

Budgetary API

Pre-inference token-spend estimates for LLM queries.

Semantic Vocabularies 1

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

Budgetary Tools Context

33 classes · 93 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Budgetary API Rules

35 rules · 33 errors 1 warnings 1 info

SPECTRAL

Security Posture 2

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

Budgetary Tools Domain Security

TLSv1.3 · HSTS · DNSSEC

SECURITY

Budgetary Tools Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

APIReference

APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

Design & Contract 6

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

Conformance

DataModel

ErrorCatalog

Build 2

SDKs, sample code, and the tooling you integrate with

SDKs

SDKs

Packages

Packages

Access & Security 4

Authentication, authorization, and security posture

SecurityTxt

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Security

Security

Commercial 2

Pricing, plans, and the legal terms of use

TermsOfService

TermsOfService

License

License

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: budgetary-tools
name: Budgetary
description: Budgetary provides a pre‑flight token‑spend estimate tool for AI coding agents. The service returns a token range,
  scenario, and confidence signal before a coding task runs, and reports "no read" when it lacks coverage. It is offered free
  and without usage limits, and integrates via an MCP server or plugins for agents such as Claude Code, VS Code, and others.
url: https://artifacts.apis.io/budgetary-tools/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-03 (modular-v1; was harvest)
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-06'
  method: derived
specificationVersion: '0.20'
created: '2026-11-03'
modified: '2026-11-03'
tags:
- AI Coding
- MCP Server
- Free Tier
tags_raw:
- AI coding
- MCP server
- Free tier
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Spectral
  url: rules/budgetary-tools-rules.yml
- type: JSONLD
  url: json-ld/budgetary-tools-context.jsonld
- type: Vocabulary
  url: vocabulary/budgetary-tools-vocabulary.yml
- type: Conformance
  url: conformance/budgetary-tools-conformance.yml
- type: DataModel
  url: data-model/budgetary-tools-data-model.yml
- type: ErrorCatalog
  url: errors/budgetary-tools-problem-types.yml
- type: SecurityTxt
  url: well-known/budgetary-tools-security.txt
- type: WellKnown
  url: well-known/budgetary-tools-well-known.yml
- type: Hosts
  url: hosts/budgetary-tools-hosts.yml
- type: Vendors
  url: vendors/budgetary-tools-vendors.yml
- type: SDKs
  url: packages/budgetary-tools-packages.yml
- type: Packages
  url: packages/budgetary-tools-packages.yml
- type: VulnerabilityDisclosure
  url: security/budgetary-tools-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/budgetary-tools-domain-security.yml
- type: Website
  url: https://budgetary.tools/
- type: APIReference
  url: https://api.budgetary.tools/mcp
- type: GettingStarted
  url: https://budgetary.tools/signup
- type: TermsOfService
  url: https://budgetary.tools/terms
- type: License
  url: https://budgetary.tools/license
- type: Security
  url: https://budgetary.tools/.well-known/security.txt
apis:
- name: Budgetary API
  description: Pre-inference token-spend estimates for LLM queries.
  humanURL: https://api.budgetary.tools/docs
  baseURL: https://api.budgetary.tools
  aid: budgetary-tools:budgetary-api
x-enrichment:
  date: '2026-11-03'
  status: enriched
  artifacts_added: 14
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Budgetary API — frequently asked questions

Does Budgetary have an API?

Yes. APIs.io lists 1 API from Budgetary, including Budgetary API.

Is the Budgetary API ready for AI agents?

Budgetary has a Kin Score of 17.3 out of 100 (emerging) and an Agent Readiness score of 0.7 (human-only), scored by API Evangelist on 2026-11-06.

Work with this as data

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

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