# Abound

**Canonical:** https://apis.io/providers/abound/  
**Website:** https://withabound.com  
**APIs profiled:** 13

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.

## Kin Score — 35.6 / 100 (thin)

Scored 2026-08-20 under rubric 0.12.0. Trend: flat (+0.0 from 35.6).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 69.2 |
| Governance | 16.7 |
| Contract Governance | 16.7 |
| Operational Transparency | 7.9 |
| Developer Ergonomics | 28.0 |
| Commercial Clarity | 0.0 |
| Access Clarity | 0.0 |

Regulatory layer — **Government & Public Sector**: 31.5 (matched via tags).

## Agent readiness — 54.8 (agent-native)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | documented |
| MCP Server | no |
| Auth Clarity | yes |
| Idempotency | verified |
| Error Semantics | verified |
| OpenAPI Examples | verified |
| Rate Limit Signal | no |
| Event Surface Described | yes |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |

## Access

Self-serve signup — onboarding: self-serve, pricing: unknown, trial: no (confidence: medium).

## APIs (13)

- **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.

## MCP servers (1)

- **Abound MCP Server**

## Agentic access (1)

- **Abound Agentic Access** — 55 operations · 33 acting

## Security (2)

- **Abound Authentication** — http · 1 scheme
- **Abound Domain Security** — TLSv1.3 · DNSSEC · DMARC

## Tags

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

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/abound/). Scores are computed from the provider's own public artifacts under a published rubric.