Abound

Abound was a US tax-compliance API company for platforms, marketplaces and fintechs serving the 1099 economy. Its v4 REST API covered the full information-return lifecycle: collecting Form W-9, W-8BEN and W-8BEN-E from payees, running real-time TIN verification against the IRS, then generating, filing, correcting, voiding and physically mailing Form 1099-NEC, 1099-MISC, 1099-K and 1099-INT to federal and state tax authorities. It also shipped drop-in UI components for payee onboarding, a 44-event webhook surface, and an official TypeScript SDK. Abound was acquired (announced November 2024) and the service has since been retired: the withabound.com DNS zone is fully de-delegated, the API and docs hosts no longer resolve, and the GitHub organization has been removed. This profile preserves the API surface, recovered from the first-party Fern API Definition shipped inside the official npm package.

Abound publishes 14 API contracts indexed on the APIs.io network, including 1099-INT API, 1099-K API, 1099-MISC API, and 11 more. Tagged areas include Company, Tax, Tax Compliance, Regulatory Compliance, and Financial Services.

The Abound catalog on APIs.io includes 1 event-driven AsyncAPI specification and 1 Spectral governance ruleset.

Abound’s developer surface includes authentication, sandbox, and 21 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

0.0/100 minimal ▬ flat Agent 0/100 human only library Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 published contract 4 Agent Skills

Company Tax Tax Compliance Regulatory Compliance Financial Services Identity Verification Government Documents Webhook Retired

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Tax Management

BC-220

1099-INT1099-K1099-MISC1099-NECTIN VerificationsW-8BEN

POST /v4/documents/1099-int POST /v4/documents/1099-int/{documentId}/file POST /v4/documents/1099-k POST /v4/documents/1099-k/{documentId}/file

Kin Score

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

Composite quality — 0.0/100 · minimal

Contract Quality 0.0 / 19

Developer Ergonomics 0.0 / 15

Access Clarity 0.0 / 15

Operational Transparency 0.0 / 10

Contract Governance 0.0 / 9

Discoverability 0.0 / 8

Regulatory Posture 2.5 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 0/100 · human only

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 0 / 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 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):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
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)
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)
Protected Resource Metadata +5 pts — a served /.well-known/oauth-protected-resource carrying `resource` (documented), and naming its authorization_servers (verified)

4 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 0.0 — up to +20.0 composite points
Access Clarity scores 0.0 — up to +20.0 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/abound/apis.yml: open an issue on github.com/api-evangelist/abound 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
Biometrics Testing (biometric recognition vendors, identity verification depth)	undeclared	-	-	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 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 14

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

Abound 1099-INT API

The 1099-INT API from Abound — 6 operation(s) for 1099-int.

Abound 1099-K API

The 1099-K API from Abound — 6 operation(s) for 1099-k.

Abound 1099-MISC API

The 1099-MISC API from Abound — 6 operation(s) for 1099-misc.

Abound 1099-NEC API

The 1099-NEC API from Abound — 6 operation(s) for 1099-nec.

Abound Access Tokens API

The Access Tokens API from Abound — 1 operation(s) for access tokens.

Abound Electronic Delivery Consents API

The Electronic Delivery Consents API from Abound — 1 operation(s) for electronic delivery consents.

Abound Mailings API

The Mailings API from Abound — 2 operation(s) for mailings.

Abound Tax Treaties API

The Tax Treaties API from Abound — 1 operation(s) for tax treaties.

Abound TIN Verifications API

The TIN Verifications API from Abound — 2 operation(s) for tin verifications.

Abound Users API

The Users API from Abound — 2 operation(s) for users.

Abound W-8BEN API

The W-8BEN API from Abound — 2 operation(s) for w-8ben.

Abound W-8BEN-E API

The W-8BEN-E API from Abound — 2 operation(s) for w-8ben-e.

Abound W-9 API

The W-9 API from Abound — 2 operation(s) for w-9.

Abound API V4 API

The Abound API V4 API from Abound — 0 operation(s) for abound api v4.

Scroll for all 14

Open Collections 13

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

Abound API - v4 1099-INT API

OPEN COLLECTION

Abound API - v4 1099-INT 1099-K API

OPEN COLLECTION

Abound API - v4 1099-INT 1099-MISC API

OPEN COLLECTION

Abound API - v4 1099-INT 1099-NEC API

OPEN COLLECTION

Abound API - v4 1099-INT Access Tokens API

OPEN COLLECTION

Abound API - v4 1099-INT Electronic Delivery Consents API

OPEN COLLECTION

Abound API - v4 1099-INT Mailings API

OPEN COLLECTION

Abound API - v4 1099-INT Tax Treaties API

OPEN COLLECTION

Abound API - v4 1099-INT TIN Verifications API

OPEN COLLECTION

Abound API - v4 1099-INT Users API

OPEN COLLECTION

Abound API - v4 1099-INT W-8BEN API

OPEN COLLECTION

Abound API - v4 1099-INT W-8BEN-E API

OPEN COLLECTION

Abound API - v4 1099-INT W-9 API

OPEN COLLECTION

Scroll for all 13

Arazzo Workflows 3

Multi-step API workflows described with the Arazzo specification.

Collect a W-9 and verify the payee TIN

Create a user, collect their Form W-9, then run and read back a real-time TIN verification against the IRS.

ARAZZO

Correct or void a filed 1099-NEC

Fix a filed return - either file a correction or void it entirely. Both only work after the document is FILED.

ARAZZO

Create, file and mail a Form 1099-NEC

Run the full 1099-NEC lifecycle - create the document, file it with federal and state authorities, then mail the payee copy.

ARAZZO

Agent Skills 4

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

Collect a W-9 and verify the payee TIN

AGENT SKILL

Consume Abound webhooks

AGENT SKILL

Correct or void a filed 1099

AGENT SKILL

Create, file and mail a Form 1099-NEC

AGENT SKILL

Event Specifications 1

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

Abound API v4 - Webhooks

The Abound webhook event surface: 44 HMAC-signed events covering Users, TIN Verifications, Mailings, Form 1099-INT/K/MISC/NEC and Forms W-9, W-8BEN and W-8BEN-E. Derived from th...

ASYNCAPI

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Abound API Rules

57 rules · 50 errors 5 warnings 2 info

SPECTRAL

OpenAPI Overlays 1

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.

Abound V4 Overlay

4 actions · update · abound-v4-openapi.yml

DERIVED

Security Posture 2

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

Abound Authentication

http · 1 scheme

SECURITY

Abound Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Agentic Access 1

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

Abound Agentic Access

55 operations · 33 acting

AGENTIC

Resources

Get Started 1

Portal, sign-up, and the first successful call

Sandbox

Sandbox

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgentSkill

AgentSkill

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

AgenticAccess

AgenticAccess

Design & Contract 11

Pagination, idempotency, versioning, errors, and events

Conventions

Idempotency

ErrorCatalog

Lifecycle

Conformance

DataModel

Components

Webhooks

Arazzo

Arazzo

Arazzo

Scroll for all 11

Build 2

SDKs, sample code, and the tooling you integrate with

Packages

Packages

SDKs

SDKs

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Source (apis.yml)

aid: abound
deliveryModel:
  model: library
  open_source: false
  commercial: false
  callable_host: false
  label: Library · distributed through package registries, no callable service
  confidence: low
  source:
  - openapi
  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
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/abound.png
name: Abound
description: 'Abound was a US tax-compliance API company for platforms, marketplaces and fintechs serving the 1099 economy.
  Its v4 REST API covered the full information-return lifecycle: collecting Form W-9, W-8BEN and W-8BEN-E from payees, running
  real-time TIN verification against the IRS, then generating, filing, correcting, voiding and physically mailing Form 1099-NEC,
  1099-MISC, 1099-K and 1099-INT to federal and state tax authorities. It also shipped drop-in UI components for payee onboarding,
  a 44-event webhook surface, and an official TypeScript SDK. Abound was acquired (announced November 2024) and the service
  has since been retired: the withabound.com DNS zone is fully de-delegated, the API and docs hosts no longer resolve, and
  the GitHub organization has been removed. This profile preserves the API surface, recovered from the first-party Fern API
  Definition shipped inside the official npm package.'
url: https://raw.githubusercontent.com/api-evangelist/abound/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
x-tier: stub
x-tier-reason: portfolio-lead
x-status: retired
x-status-evidence: withabound.com has no delegated nameservers (NXDOMAIN on apex, www, docs, status, production-api and sandbox-api);
  github.com/withabound returns 404. Probed 2026-07-19.
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-09-16'
tags:
- Company
- Tax
- Tax Compliance
- Regulatory Compliance
- Financial Services
- Identity Verification
- Government
- Documents
- Webhook
- Retired
tags_raw:
- Company
- Taxes
- Tax Compliance
- Regulatory Compliance
- Financial Services
- Identity Verification
- Government
- Documents
- Webhooks
- Retired
- Financial-Services
apis:
- aid: abound:abound-1099-int-api
  name: Abound 1099-INT API
  description: The 1099-INT API from Abound — 6 operation(s) for 1099-int.
  humanURL: https://www.npmjs.com/package/@withabound/node-sdk
  baseURL: https://production-api.withabound.com
  tags:
  - 1099-INT
  properties:
  - type: OpenAPI
    url: openapi/abound-1099-int-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/abound-webhooks-asyncapi.yml
- aid: abound:abound-1099-k-api
  name: Abound 1099-K API
  description: The 1099-K API from Abound — 6 operation(s) for 1099-k.
  humanURL: https://www.npmjs.com/package/@withabound/node-sdk
  baseURL: https://production-api.withabound.com
  tags:
  - 1099-K
  properties:
  - type: OpenAPI
    url: openapi/abound-1099-k-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/abound-webhooks-asyncapi.yml
- aid: abound:abound-1099-misc-api
  name: Abound 1099-MISC API
  description: The 1099-MISC API from Abound — 6 operation(s) for 1099-misc.
  humanURL: https://www.npmjs.com/package/@withabound/node-sdk
  baseURL: https://production-api.withabound.com
  tags:
  - 1099-MISC
  properties:
  - type: OpenAPI
    url: openapi/abound-1099-misc-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/abound-webhooks-asyncapi.yml
- aid: abound:abound-1099-nec-api
  name: Abound 1099-NEC API
  description: The 1099-NEC API from Abound — 6 operation(s) for 1099-nec.
  humanURL: https://www.npmjs.com/package/@withabound/node-sdk
  baseURL: https://production-api.withabound.com
  tags:
  - 1099-NEC
  properties:
  - type: OpenAPI
    url: openapi/abound-1099-nec-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/abound-webhooks-asyncapi.yml
- aid: abound:abound-access-tokens-api
  name: Abound Access Tokens API
  description: The Access Tokens API from Abound — 1 operation(s) for access tokens.
  humanURL: https://www.npmjs.com/package/@withabound/node-sdk
  baseURL: https://production-api.withabound.com
  tags:
  - Access Tokens
  properties:
  - type: OpenAPI
    url: openapi/abound-access-tokens-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/abound-webhooks-asyncapi.yml
- aid: abound:abound-electronic-delivery-consents-api
  name: Abound Electronic Delivery Consents API
  description: The Electronic Delivery Consents API from Abound — 1 operation(s) for electronic delivery consents.
  humanURL: https://www.npmjs.com/package/@withabound/node-sdk
  baseURL: https://production-api.withabound.com
  tags:
  - Electronic Delivery Consents
  properties:
  - type: OpenAPI
    url: openapi/abound-electronic-delivery-consents-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/abound-webhooks-asyncapi.yml
- aid: abound:abound-mailings-api
  name: Abound Mailings API
  description: The Mailings API from Abound — 2 operation(s) for mailings.
  humanURL: https://www.npmjs.com/package/@withabound/node-sdk
  baseURL: https://production-api.withabound.com
  tags:
  - Mailings
  properties:
  - type: OpenAPI
    url: openapi/abound-mailings-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/abound-webhooks-asyncapi.yml
- aid: abound:abound-tax-treaties-api
  name: Abound Tax Treaties API
  description: The Tax Treaties API from Abound — 1 operation(s) for tax treaties.
  humanURL: https://www.npmjs.com/package/@withabound/node-sdk
  baseURL: https://production-api.withabound.com
  tags:
  - Tax Treaties
  properties:
  - type: OpenAPI
    url: openapi/abound-tax-treaties-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/abound-webhooks-asyncapi.yml
- aid: abound:abound-tin-verifications-api
  name: Abound TIN Verifications API
  description: The TIN Verifications API from Abound — 2 operation(s) for tin verifications.
  humanURL: https://www.npmjs.com/package/@withabound/node-sdk
  baseURL: https://production-api.withabound.com
  tags:
  - TIN Verifications
  properties:
  - type: OpenAPI
    url: openapi/abound-tin-verifications-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/abound-webhooks-asyncapi.yml
- aid: abound:abound-users-api
  name: Abound Users API
  description: The Users API from Abound — 2 operation(s) for users.
  humanURL: https://www.npmjs.com/package/@withabound/node-sdk
  baseURL: https://production-api.withabound.com
  tags:
  - User
  tags_raw:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/abound-users-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/abound-webhooks-asyncapi.yml
- aid: abound:abound-w-8ben-api
  name: Abound W-8BEN API
  description: The W-8BEN API from Abound — 2 operation(s) for w-8ben.
  humanURL: https://www.npmjs.com/package/@withabound/node-sdk
  baseURL: https://production-api.withabound.com
  tags:
  - W-8BEN
  properties:
  - type: OpenAPI
    url: openapi/abound-w-8ben-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/abound-webhooks-asyncapi.yml
- aid: abound:abound-w-8ben-e-api
  name: Abound W-8BEN-E API
  description: The W-8BEN-E API from Abound — 2 operation(s) for w-8ben-e.
  humanURL: https://www.npmjs.com/package/@withabound/node-sdk
  baseURL: https://production-api.withabound.com
  tags:
  - W-8BEN-E
  properties:
  - type: OpenAPI
    url: openapi/abound-w-8ben-e-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/abound-webhooks-asyncapi.yml
- aid: abound:abound-w-9-api
  name: Abound W-9 API
  description: The W-9 API from Abound — 2 operation(s) for w-9.
  humanURL: https://www.npmjs.com/package/@withabound/node-sdk
  baseURL: https://production-api.withabound.com
  tags:
  - W-9
  properties:
  - type: OpenAPI
    url: openapi/abound-w-9-api-openapi.yml
  - type: AsyncAPI
    url: asyncapi/abound-webhooks-asyncapi.yml
- aid: abound:abound-abound-api-v4-api
  name: Abound API V4 API
  description: The Abound API V4 API from Abound — 0 operation(s) for abound api v4.
  humanURL: https://www.npmjs.com/package/@withabound/node-sdk
  baseURL: https://production-api.withabound.com
  tags:
  - Abound API V4
  properties:
  - type: OpenAPI
    url: openapi/abound-abound-api-v4-api-openapi.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: CapabilityMap
  url: capabilities/abound-capability-edges.yml
  name: Abound Business Capability Map
- type: Overlay
  url: overlays/abound-v4-overlay.yaml
- type: Website
  url: https://withabound.com
- type: Packages
  url: packages/abound-packages.yml
- type: SDKs
  url: packages/abound-packages.yml
- type: Authentication
  url: authentication/abound-authentication.yml
- type: Conventions
  url: conventions/abound-conventions.yml
- type: Idempotency
  url: conventions/abound-conventions.yml
- type: ErrorCatalog
  url: errors/abound-problem-types.yml
- type: Lifecycle
  url: lifecycle/abound-lifecycle.yml
- type: Conformance
  url: conformance/abound-conformance.yml
- type: DataModel
  url: data-model/abound-data-model.yml
- type: Components
  url: components/abound-components.yml
- type: Sandbox
  url: sandbox/abound-sandbox.yml
- type: Webhooks
  url: asyncapi/abound-webhooks-asyncapi.yml
- type: AgentSkill
  url: skills/_index.yml
- type: X-MCPServerCandidate
  url: mcp/abound-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: LLMsTxt
  url: llms/abound-llms.txt
- type: DomainSecurity
  url: security/abound-domain-security.yml
- type: AgenticAccess
  url: agentic-access/abound-agentic-access.yml
- type: Arazzo
  name: Collect a W-9 and verify the payee TIN
  url: arazzo/abound-collect-w9-and-verify-tin.arazzo.yml
- type: Arazzo
  name: Create, file and mail a Form 1099-NEC
  url: arazzo/abound-file-1099-nec.arazzo.yml
- type: Arazzo
  name: Correct or void a filed 1099-NEC
  url: arazzo/abound-correct-or-void-1099.arazzo.yml
x-enrichment:
  date: '2026-07-20'
  status: minimal
  artifacts_added: 4
  pass: local-v1
x-lifecycle:
  state: shuttered
  reason: domain-does-not-resolve
  observed: '2026-09-27'
  detail: The company's own domain returned no A or AAAA record when probed. This is an observation about the domain, not
    a request from the company.
  indexed: false

Abound API — frequently asked questions

Does Abound have an API?

Yes. APIs.io lists 14 APIs from Abound, including Abound 1099-INT API, Abound 1099-K API and Abound 1099-MISC API, and 11 more.

Is there an OpenAPI specification for the Abound API?

Yes. APIs.io indexes 14 OpenAPI specifications for Abound, each linked for download from this page.

How do I authenticate with the Abound API?

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

Is the Abound API ready for AI agents?

Abound has a Kin Score of 0.0 out of 100 (minimal) and an Agent Readiness score of 0.0 (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.

MCP server

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

https://apis.io/mcp

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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/abound"

All providers

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

Every operation they expose

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

How their score was established

curl "https://apis.io/api/v1/providers/abound/evidence"

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