BidProwl

BidProwl provides a searchable platform for government auction lots across the United States, aggregating data from over 27 sites including vehicles, equipment, and real estate. Users can browse, filter, and receive alerts for live auction items, view flip scores and sold prices, and access free tools to help evaluate and win government surplus auctions.

BidProwl publishes 8 API contracts indexed on the APIs.io network, including Comps API, Export API, Flip Score API, and 5 more. Tagged areas include Government, Auctions, Marketplace, Data, and Search.

The BidProwl catalog on APIs.io includes 1 event-driven AsyncAPI specification, 1 JSON-LD context, and 1 Spectral governance ruleset.

BidProwl’s developer surface includes pricing, documentation, API reference, authentication, and 18 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

45.1/100 developing Agent 37/100 agent ready Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract 2 Agent Skills

Government Auctions Marketplace Data Search

Kin Score

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

Composite quality — 45.1/100 · developing

Contract Quality 15.0 / 21

Developer Ergonomics 4.5 / 17

Access Clarity 9.2 / 17

Operational Transparency 0.9 / 11

Contract Governance 2.2 / 10

Discoverability 5.6 / 9

Regulatory Posture 3.1 / 15

Agent readiness — 37/100 · 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 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 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 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Government & Public Sector 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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
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
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)
Documented Reversibility +6 pts — a reversal operation in the contract, graded up when a window is documented too

5 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 26.7 — up to +14.7 composite points
Operational Transparency scores 7.9 — up to +12.0 composite points
Contract Governance scores 22.0 — up to +9.4 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/bidprowl-com/apis.yml: open an issue on github.com/api-evangelist/bidprowl-com 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 1

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.

OpenAPI

measured — observed by APIs.io (published)

APIs 8

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

BidProwl Comps API

The Comps API from BidProwl — 2 operation(s) for comps.

BidProwl Export API

The Export API from BidProwl — 1 operation(s) for export.

BidProwl Flip Score API

The Flip Score API from BidProwl — 1 operation(s) for flip score.

BidProwl Listings API

The Listings API from BidProwl — 2 operation(s) for listings.

BidProwl Sold API

The Sold API from BidProwl — 1 operation(s) for sold.

BidProwl Sources API

The Sources API from BidProwl — 1 operation(s) for sources.

BidProwl Usage API

The Usage API from BidProwl — 1 operation(s) for usage.

BidProwl Webhooks API

The Webhooks API from BidProwl — 2 operation(s) for webhooks.

Scroll for all 8

Agent Skills 2

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

null

AGENT SKILL

bidprowl-com

AGENT SKILL

BidProwl API pricing

Prices published by BidProwl, read 2026-11-02 from bidprowl.com/pricing.

Plan	Price
Free	$0/mo
Pro Monthly	$9/mo
Pro Annual	$79 a year
Pro+	$29/month

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Bidprowl Com Plans Pricing

4 plans

PLANS

Event Specifications 1

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

Bidprowl Com Webhooks

ASYNCAPI

Semantic Vocabularies 1

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

Bidprowl Com Context

7 classes · 63 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

BidProwl API Rules

53 rules · 51 errors 1 warnings 1 info

SPECTRAL

JSON Schema 6

Standalone JSON Schema definitions for this provider's data models.

Listing

26 properties

JSON SCHEMA

SoldLot

11 properties

JSON SCHEMA

SoldStats

6 properties

JSON SCHEMA

Usage

10 properties

JSON SCHEMA

WebhookFilters

8 properties

JSON SCHEMA

Webhook

13 properties

JSON SCHEMA

Security Posture 2

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

Bidprowl Com Authentication

http · 1 scheme

SECURITY

Bidprowl Com Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Agentic Access 1

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

Bidprowl Com Agentic Access

12 operations · 2 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

AgentSkill

AgentSkill

LLMsTxt

LLMsTxt

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

Webhooks

DataModel

ErrorCatalog

Conformance

Scroll for all 7

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Commercial 4

Pricing, plans, and the legal terms of use

Plans

TermsOfService

PrivacyPolicy

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: bidprowl-com
name: BidProwl
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://bidprowl.com/api/og?v=2&title=Government+Surplus+Auctions+in+One+Place&subtitle=Search+GSA,+GovDeals,+GovPlanet+and+more
description: BidProwl provides a searchable platform for government auction lots across the United States, aggregating data
  from over 27 sites including vehicles, equipment, and real estate. Users can browse, filter, and receive alerts for live
  auction items, view flip scores and sold prices, and access free tools to help evaluate and win government surplus auctions.
url: https://artifacts.apis.io/bidprowl-com/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-02 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-02'
modified: '2026-11-02'
tags:
- Government
- Auctions
- Marketplace
- Data
- Search
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: AgenticAccess
  url: agentic-access/bidprowl-com-agentic-access.yml
- type: Plans
  url: plans/bidprowl-com-plans-pricing.yml
- type: Spectral
  url: rules/bidprowl-com-rules.yml
- type: JSONLD
  url: json-ld/bidprowl-com-context.jsonld
- type: Vocabulary
  url: vocabulary/bidprowl-com-vocabulary.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Webhooks
  url: asyncapi/bidprowl-com-webhooks.yml
- type: DataModel
  url: data-model/bidprowl-com-data-model.yml
- type: ErrorCatalog
  url: errors/bidprowl-com-problem-types.yml
- type: Conformance
  url: conformance/bidprowl-com-conformance.yml
- type: LLMsTxt
  url: llms/bidprowl-com-llms.txt
- type: Hosts
  url: hosts/bidprowl-com-hosts.yml
- type: Vendors
  url: vendors/bidprowl-com-vendors.yml
- type: TermsOfService
  url: https://bidprowl.com/terms
- type: PrivacyPolicy
  url: https://bidprowl.com/privacy
- type: Pricing
  url: https://bidprowl.com/pricing
- type: Login
  url: https://bidprowl.com/login
- type: Documentation
  url: https://bidprowl.com/guides
- type: APIReference
  url: https://bidprowl.com/developers
- type: Authentication
  url: authentication/bidprowl-com-authentication.yml
- type: DomainSecurity
  url: security/bidprowl-com-domain-security.yml
- type: Website
  url: https://bidprowl.com/
apis:
- aid: bidprowl-com:bidprowl-com-comps-api
  name: BidProwl Comps API
  description: The Comps API from BidProwl — 2 operation(s) for comps.
  humanURL: https://bidprowl.com/developers
  baseURL: https://bidprowl.com
  tags:
  - Comps
  properties:
  - type: OpenAPI
    url: openapi/bidprowl-com-comps-api-openapi.yml
  - type: JSONSchema
    url: json-schema/bidprowl-com-listing-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-webhook-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-usage-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-webhook-filters-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-sold-lot-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-sold-stats-schema.json
- aid: bidprowl-com:bidprowl-com-export-api
  name: BidProwl Export API
  description: The Export API from BidProwl — 1 operation(s) for export.
  humanURL: https://bidprowl.com/developers
  baseURL: https://bidprowl.com
  tags:
  - Export
  properties:
  - type: OpenAPI
    url: openapi/bidprowl-com-export-api-openapi.yml
  - type: JSONSchema
    url: json-schema/bidprowl-com-listing-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-webhook-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-usage-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-webhook-filters-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-sold-lot-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-sold-stats-schema.json
- aid: bidprowl-com:bidprowl-com-flip-score-api
  name: BidProwl Flip Score API
  description: The Flip Score API from BidProwl — 1 operation(s) for flip score.
  humanURL: https://bidprowl.com/developers
  baseURL: https://bidprowl.com
  tags:
  - Flip Score
  properties:
  - type: OpenAPI
    url: openapi/bidprowl-com-flip-score-api-openapi.yml
  - type: JSONSchema
    url: json-schema/bidprowl-com-listing-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-webhook-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-usage-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-webhook-filters-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-sold-lot-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-sold-stats-schema.json
- aid: bidprowl-com:bidprowl-com-listings-api
  name: BidProwl Listings API
  description: The Listings API from BidProwl — 2 operation(s) for listings.
  humanURL: https://bidprowl.com/developers
  baseURL: https://bidprowl.com
  tags:
  - Listings
  properties:
  - type: OpenAPI
    url: openapi/bidprowl-com-listings-api-openapi.yml
  - type: JSONSchema
    url: json-schema/bidprowl-com-listing-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-webhook-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-usage-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-webhook-filters-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-sold-lot-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-sold-stats-schema.json
- aid: bidprowl-com:bidprowl-com-sold-api
  name: BidProwl Sold API
  description: The Sold API from BidProwl — 1 operation(s) for sold.
  humanURL: https://bidprowl.com/developers
  baseURL: https://bidprowl.com
  tags:
  - Sold
  properties:
  - type: OpenAPI
    url: openapi/bidprowl-com-sold-api-openapi.yml
  - type: JSONSchema
    url: json-schema/bidprowl-com-listing-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-webhook-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-usage-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-webhook-filters-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-sold-lot-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-sold-stats-schema.json
- aid: bidprowl-com:bidprowl-com-sources-api
  name: BidProwl Sources API
  description: The Sources API from BidProwl — 1 operation(s) for sources.
  humanURL: https://bidprowl.com/developers
  baseURL: https://bidprowl.com
  tags:
  - Sources
  properties:
  - type: OpenAPI
    url: openapi/bidprowl-com-sources-api-openapi.yml
  - type: JSONSchema
    url: json-schema/bidprowl-com-listing-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-webhook-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-usage-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-webhook-filters-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-sold-lot-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-sold-stats-schema.json
- aid: bidprowl-com:bidprowl-com-usage-api
  name: BidProwl Usage API
  description: The Usage API from BidProwl — 1 operation(s) for usage.
  humanURL: https://bidprowl.com/developers
  baseURL: https://bidprowl.com
  tags:
  - Usage
  properties:
  - type: OpenAPI
    url: openapi/bidprowl-com-usage-api-openapi.yml
  - type: JSONSchema
    url: json-schema/bidprowl-com-listing-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-webhook-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-usage-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-webhook-filters-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-sold-lot-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-sold-stats-schema.json
- aid: bidprowl-com:bidprowl-com-webhooks-api
  name: BidProwl Webhooks API
  description: The Webhooks API from BidProwl — 2 operation(s) for webhooks.
  humanURL: https://bidprowl.com/developers
  baseURL: https://bidprowl.com
  tags:
  - Webhook
  tags_raw:
  - Webhooks
  properties:
  - type: OpenAPI
    url: openapi/bidprowl-com-webhooks-api-openapi.yml
  - type: JSONSchema
    url: json-schema/bidprowl-com-listing-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-webhook-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-usage-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-webhook-filters-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-sold-lot-schema.json
  - type: JSONSchema
    url: json-schema/bidprowl-com-sold-stats-schema.json
x-enrichment:
  date: '2026-11-02'
  status: enriched
  artifacts_added: 31
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

BidProwl API — frequently asked questions

Does BidProwl have an API?

Yes. APIs.io lists 8 APIs from BidProwl, including BidProwl Comps API, BidProwl Export API and BidProwl Flip Score API, and 5 more.

Is there an OpenAPI specification for the BidProwl API?

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

How do I authenticate with the BidProwl API?

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

How much does the BidProwl API cost?

BidProwl publishes its prices; its Free plan is $0/mo as of 2026-11-02. APIs.io lists 4 pricing plans for BidProwl, with each plan's price, limits and inclusions under Pricing on this page.

Is the BidProwl API ready for AI agents?

BidProwl has a Kin Score of 45.1 out of 100 (developing) and an Agent Readiness score of 36.7 (agent-ready), scored by API Evangelist on 2026-11-06.

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