Agent Papers

Agent Papers is a registry and platform that aggregates API information for companies providing identity, communication, financial, and legal services to AI agents. It offers a searchable catalog, categorized listings, and tools for developers to integrate agent‑centric infrastructure such as phone numbers, email, addresses, wallets, and compliance resources. The site is regularly updated and includes documentation, changelogs, and an MCP interface for programmatic access.

Agent Papers is listed with 1 API on the APIs.io network. Tagged areas include Identity, Phone, Email, Address, and Money.

Agent Papers’ developer surface includes changelog, documentation, API reference, getting-started guide, engineering blog, and 9 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

11.1/100 emerging ▼ -5.0 Agent 4/100 human only Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 API 1 MCP Servers

Identity Phone Email Address Money Legal Insurance Agent Infrastructure

Kin Score

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

Composite quality — 11.1/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 3.4 / 17

Access Clarity 0.0 / 17

Operational Transparency 0.9 / 11

Contract Governance 0.5 / 10

Discoverability 5.5 / 9

Regulatory Posture 1.4 / 15

Agent readiness — 4/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 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 Insurance 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
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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
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 0.0 — up to +25.0 composite points
Access Clarity scores 0.0 — up to +20.0 composite points
Developer Ergonomics scores 20.2 — up to +16.0 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/agentpapers-dev/apis.yml: open an issue on github.com/api-evangelist/agentpapers-dev 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.

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

APIs 1

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

Agent Papers API

Keyless API for the Agent Papers registry of personhood infrastructure for AI agents.

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Agent Papers MCP Server

Remote MCP server at agentpapers.dev.

MCP SERVER

Security Posture 1

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

Agentpapers Dev Domain Security

TLSv1.3 · HSTS

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt

LLMsTxt

MCPServer

MCPServer

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conformance

Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

ToolCrosswalk

ToolCrosswalk

Access & Security 1

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Operate 1

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Vendors

Vendors

Source (apis.yml)

aid: agentpapers-dev
name: Agent Papers
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - security
  generated: '2026-11-06'
  method: derived
image: https://agentpapers.dev/agent-papers-og.png
description: Agent Papers is a registry and platform that aggregates API information for companies providing identity, communication,
  financial, and legal services to AI agents. It offers a searchable catalog, categorized listings, and tools for developers
  to integrate agent‑centric infrastructure such as phone numbers, email, addresses, wallets, and compliance resources. The
  site is regularly updated and includes documentation, changelogs, and an MCP interface for programmatic access.
url: https://artifacts.apis.io/agentpapers-dev/apis.yml
x-type: company
x-source: harvest:mcp-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-11-01 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-11-01'
modified: '2026-11-01'
tags:
- Identity
- Phone
- Email
- Address
- Money
- Legal
- Insurance
- Agent Infrastructure
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Conformance
  url: conformance/agentpapers-dev-conformance.yml
- type: LLMsTxt
  url: llms/agentpapers-dev-llms.txt
- type: ToolCrosswalk
  url: mcp/agentpapers-dev-tool-crosswalk.yml
- type: MCPServer
  url: mcp/agentpapers-dev-mcp.yml
- type: Hosts
  url: hosts/agentpapers-dev-hosts.yml
- type: Vendors
  url: vendors/agentpapers-dev-vendors.yml
- type: ChangeLog
  url: https://agentpapers.dev/changelog
- type: DomainSecurity
  url: security/agentpapers-dev-domain-security.yml
- type: Website
  url: https://agentpapers.dev/
- type: DeveloperPortal
  url: https://agentpapers.dev/developers
- type: Documentation
  url: https://agentpapers.dev/developers
- type: APIReference
  url: https://agentpapers.dev/api/v1/openapi.json
- type: GettingStarted
  url: https://agentpapers.dev/developers
- type: Blog
  url: https://agentpapers.dev/landscape
apis:
- name: Agent Papers API
  description: Keyless API for the Agent Papers registry of personhood infrastructure for AI agents.
  humanURL: https://agentpapers.dev/developers
  baseURL: https://agentpapers.dev
  aid: agentpapers-dev:agent-papers-api
x-enrichment:
  date: '2026-11-01'
  status: enriched
  artifacts_added: 12
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Agent Papers API — frequently asked questions

Does Agent Papers have an API?

Yes. APIs.io lists 1 API from Agent Papers, including Agent Papers API.

Does Agent Papers have an MCP server?

Yes. APIs.io lists 1 MCP server for Agent Papers: Remote MCP server at agentpapers.dev.

Is the Agent Papers API ready for AI agents?

Agent Papers has a Kin Score of 11.1 out of 100 (emerging) and an Agent Readiness score of 3.5 (human-only), scored by API Evangelist on 2026-11-06.

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get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
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.

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