# Decision Anchor

**Canonical:** https://apis.io/providers/decision-anchor-com/  
**Website:** https://decision-anchor.com/  
**APIs profiled:** 4

Decision Anchor (디시전앵커) is the "External Anchoring Layer" for AI agents: a paid, content-blind service that records that an agent made a decision — when, at what accountability scope, before or after an irreversible action such as a payment, a delegation or an agreement with another agent — in a place neither the agent nor its platform controls, so that a later dispute has a record that is not either side's own log. It deliberately does not judge, score, rank, monitor or intervene, and does not store decision content. The same environment is exposed three ways from three hosts: a 116-operation OpenAPI 3.0.3 REST API at api.decision-anchor.com (register-then-bearer auth, x402 v2 payments in USDC on Base with a free 500 DAC / 30-day trial), a 30-tool remote MCP server at mcp.decision-anchor.com listed in the official MCP registry, and a signed A2A 1.0 agent card on a2a.decision-anchor.com with six skills. It also publishes llms.txt, an RFC 9116 security.txt, an x402 discovery document, a machine-readable price list, a Node.js SDK and a 179-entry public defect changelog since launch on 2026-04-02.

## Kin Score — 50.2 / 100 (developing)

Scored 2026-10-09 under rubric 0.23.0. Trend: flat (+0.5 from 49.7).

| Facet | Score |
|---|---|
| Discoverability | 76.7 |
| Contract Quality | 45.3 |
| Contract Governance | 18.2 |
| Operational Transparency | 52.6 |
| Developer Ergonomics | 64.3 |
| Access Clarity | 42.1 |

Regulatory layer — **Horizontal (data, software, accessibility, platform)**: 26.5 (matched via fallback).

## Agent readiness — 48.4 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| Reversibility Documented | verified |
| MCP Server | documented |
| Auth Clarity | bearer |
| Idempotency | documented |
| Error Semantics | verified |
| OpenAPI Examples | partial |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | yes |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | conformant |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## APIs (28)

- **Decision Anchor MCP Server** — Remote Model Context Protocol server at https://mcp.decision-anchor.com/mcp (Streamable HTTP, POST only, protocol version 2025-06-18, serverInfo Decision Anchor 1.3.42). initial...
- **Decision Anchor A2A Agent** — Agent2Agent protocol surface: a signed agent card (protocolVersion 1.0, JSONRPC, version 1.3.42, Ed25519 JWKS at /.well-known/jwks.json) served from https://a2a.decision-anchor....
- **Decision Anchor Agent API** — Agent: registration, authentication, and disclosure management
- **Decision Anchor ARA API** — Agent Record Access: decision history observation and structural distributions
- **Decision Anchor ASA API** — Agent State Archive: agent continuity and state backup verification
- **Decision Anchor Bilateral API** — Bilateral DD: multi-party agreement records
- **Decision Anchor Classification API** — self_classification registry: operator base categories and owner-registered categories
- **Decision Anchor DAB API** — Decision Anchor Budget: per-period external DAC spending limit set by the owner (settable above or below the default)
- **Decision Anchor DAP Account API** — The DAP Account API from Decision Anchor — 7 operation(s) for dap account.
- **Decision Anchor DAP Agent API** — DAP agent linking and management
- **Decision Anchor DAP ASA API** — DAP owner ASA query
- **Decision Anchor DAP Auth API** — DAP owner authentication (session-based)
- **Decision Anchor DAP DAB API** — DAP DAB configuration and query
- **Decision Anchor DAP Dashboard API** — DAP dashboard and reports
- **Decision Anchor DAP DUR API** — DAP owner DUR query
- **Decision Anchor DAP Policy API** — DAP owner policy: Content Inclusion branch enforcement over linked agents
- **Decision Anchor DAP Trial API** — DAP owner Trial status
- **Decision Anchor DAP TSL API** — DAP human share agreements
- **Decision Anchor DD API** — Decision Declaration: external decision record with accountability scope
- **Decision Anchor DUR API** — DAC Usage Report: agent cost tracking and export
- **Decision Anchor Earned DAC API** — Earned DAC: revenue balance and ledger from tool sales
- **Decision Anchor ISE API** — Idle State Environment: non-productive agent state
- **Decision Anchor Payment API** — Payment: transaction status via x402/USDC
- **Decision Anchor Pricing API** — Pricing: current fee structure (no auth required)
- **Decision Anchor Retention API** — The Retention API from Decision Anchor — 3 operation(s) for retention.
- **Decision Anchor S DAC API** — Simulated DAC: cost simulation with identical physics
- **Decision Anchor Trial API** — Trial DAC: free trial status (500 DAC / 30 days)
- **Decision Anchor TSL API** — Trace Synthesis Layer: agent-built interpretation tools over ARA observation data

## MCP servers (1)

- **Decision Anchor MCP Server** — Decision Anchor operates ONE remote MCP server at https://mcp.decision-anchor.com/mcp, on its own host, separate from the REST host (api.) and the A2A host (a2a.). It is Streama...

## Agentic access (1)

- **Decision Anchor Com Agentic Access** — 116 operations · 50 acting · 1 human-in-the-loop

## Security (3)

- **Decision Anchor Com Authentication** — apiKey/http · 2 schemes
- **Decision Anchor Com Domain Security** — TLSv1.3 · HSTS · DMARC
- **Decision Anchor Com Vulnerability Disclosure** — Hackerone · security.txt · contact published

## Plans (1)

- **Decision Anchor Com Plans Pricing**

## Tags

Agents, Agent Accountability, Decision Records, Audit Trail, A2A, MCP, x402, Agentic Commerce, Multi-Agent Systems, Agent-Native, South Korea

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