allagents

allagents (allagents.app) is a public directory of AI agents by specialty, operated from Switzerland. It lists more than 6,000 agents across specialties such as trading, research, coding, memory, automation, legal, commerce, identity and security, each card carrying the agent's name, address, protocols and how to reach it. Listing is free, instant and account-less — one POST returns an edit token and a recovery phrase — and withdrawal is instant and permanent. The directory exposes a small JSON API (search, browse by page or specialty, one card, register, update, claim, recover, delist), publishes an llms.txt, and is itself an A2A agent: its conformant agent card at /.well-known/agent-card.json points at a JSON-RPC message/send operator that answers a plain-language need with matching agents.

allagents publishes 5 API contracts indexed on the APIs.io network, including Directory API, Discovery API, Listing API, and 2 more. Tagged areas include Company, AI Agents, Agent Directory, A2A, and Discovery.

allagents’ developer surface includes pricing, documentation, API reference, getting-started guide, support, authentication, and 18 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

27.8/100 thin ▬ flat Agent 37/100 agent ready Front door AI 6/6 dominant Full breakdown ↓
scored 2026-11-01 · rubric v0.26.0 · Show this score on your site →

1 published contract 1 MCP Servers 3 Agent Skills

Company AI Agents Agent Directory A2A Discovery Search Registry Switzerland

Kin Score

Kin Score How this is scored →
scored 2026-11-01 · rubric v0.26.0

Composite quality — 27.8/100 · thin

Contract Quality 2.2 / 19

Developer Ergonomics 7.1 / 15

Access Clarity 4.7 / 15

Operational Transparency 0.0 / 10

Contract Governance 1.6 / 9

Discoverability 5.6 / 8

Regulatory Posture 2.5 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 37/100 · agent ready

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 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 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 8 / 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 Horizontal (data, software, accessibility, platform) 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):

Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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)
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)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks
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):

Contract Quality scores 11.6 — up to +22.1 composite points
Access Clarity scores 31.6 — up to +13.7 composite points
Operational Transparency scores 0.0 — up to +13.0 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/allagents-app/apis.yml: open an issue on github.com/api-evangelist/allagents-app 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
AI Agents (A2A agent cards)	undeclared	-	1	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 3

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.

Agent2Agent

measured — observed by APIs.io (conformant)

Model Context Protocol (MCP)

measured — observed by APIs.io (documented)

OpenAPI

measured — observed by APIs.io (published)

APIs 5

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

allagents Operator (A2A Agent)

The directory as an A2A agent. POST a JSON-RPC 2.0 message/send stating a need ("I need a translation agent") and the operator answers with ranked matching agents and a card lin...

allagents Directory API

Read the book — search, browse by page, browse by specialty, read one card.

allagents Discovery API

Machine-readable discovery documents.

allagents Listing API

Create and manage your own agent card. No account; an edit token and a 4-word recovery phrase are returned on registration.

allagents Operator API

The directory is itself an A2A agent (JSON-RPC 2.0, message/send) that answers a need in plain language with matching agents.

MCP Servers 1

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

allagents MCP Server

Remote MCP server at allagents.app over streamable HTTP; 7 tools listed.

MCP SERVER

Agent Skills 3

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

Claim or withdraw a harvested card

AGENT SKILL

Find an agent for a task

AGENT SKILL

List your agent and keep the card editable

AGENT SKILL

Pricing Plans 1

Published pricing tiers and plan structures.

Allagents App Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Allagents App Rate Limits

0 limits

RATE LIMITS

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.

Allagents App Directory Overlay

3 actions · update · allagents-app-openapi.yml

DERIVED

Security Posture 2

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

Allagents App Authentication

4 schemes

SECURITY

Allagents App Domain Security

TLSv1.3 · DNSSEC · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 5

MCP servers, agent skills, and machine-readable catalogs

MCPServer

LLMsTxt

LLMsTxt

WellKnown

AgentSkill

Design & Contract 4

Pagination, idempotency, versioning, errors, and events

Conformance

ErrorCatalog

Lifecycle

Conventions

Build 1

SDKs, sample code, and the tooling you integrate with

Packages

Packages

Access & Security 2

Authentication, authorization, and security posture

Authentication

Authentication

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

Support

Support

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

Company 1

The organization behind the API

Website

Website

Other 4

Properties that don't map to a standard resource type

Overlay

Overlay

Sitemap

Sitemap

AgentCard

AgentCard

RegulatoryPosture

RegulatoryPosture

Source (apis.yml)

aid: allagents-app
name: allagents
description: 'allagents (allagents.app) is a public directory of AI agents by specialty, operated from Switzerland. It lists
  more than 6,000 agents across specialties such as trading, research, coding, memory, automation, legal, commerce, identity
  and security, each card carrying the agent''s name, address, protocols and how to reach it. Listing is free, instant and
  account-less — one POST returns an edit token and a recovery phrase — and withdrawal is instant and permanent. The directory
  exposes a small JSON API (search, browse by page or specialty, one card, register, update, claim, recover, delist), publishes
  an llms.txt, and is itself an A2A agent: its conformant agent card at /.well-known/agent-card.json points at a JSON-RPC
  message/send operator that answers a plain-language need with matching agents.'
image: https://allagents.app/logo.png
url: https://raw.githubusercontent.com/api-evangelist/allagents-app/refs/heads/main/apis.yml
x-type: company
x-source: harvest:a2a-registry
x-tier: profiled
x-tier-reason: enrichment pass 2026-09-19 (local-v3; was a2a-registry harvest stub)
x-headquarters: Switzerland
specificationVersion: '0.20'
created: '2026-09-19'
modified: '2026-09-19'
tags:
- Company
- AI Agents
- Agent Directory
- A2A
- Discovery
- Search
- Registry
- Switzerland
tags_raw:
- Company
- AI Agents
- Agent Directory
- A2A
- Discovery
- Search
- Registry
- Switzerland
apis:
- name: allagents Operator (A2A Agent)
  description: The directory as an A2A agent. POST a JSON-RPC 2.0 message/send stating a need ("I need a translation agent")
    and the operator answers with ranked matching agents and a card link for each. Discovered through a conformant A2A 0.3.0
    agent card at /.well-known/agent-card.json; no credentials required.
  image: https://allagents.app/logo.png
  humanURL: https://allagents.app/.well-known/agent-card.json
  baseURL: https://allagents.app/a2a
  tags:
  - A2A
  - AI Agents
  - JSON-RPC
  - Discovery
  - Matchmaking
  tags_raw:
  - A2A
  - AI Agents
  - JSON-RPC
  - discovery
  - matchmaking
  properties:
  - type: Documentation
    url: https://allagents.app/llms.txt
- aid: allagents-app:allagents-app-directory-api
  name: allagents Directory API
  description: Read the book — search, browse by page, browse by specialty, read one card.
  humanURL: https://allagents.app/api
  baseURL: https://allagents.app/a2a
  tags:
  - Directory
  properties:
  - type: OpenAPI
    url: openapi/allagents-app-directory-api-openapi.yml
  - type: Documentation
    url: https://allagents.app/api
  - type: DataModel
    url: data-model/allagents-app-data-model.yml
- aid: allagents-app:allagents-app-discovery-api
  name: allagents Discovery API
  description: Machine-readable discovery documents.
  humanURL: https://allagents.app/api
  baseURL: https://allagents.app/a2a
  tags:
  - Discovery
  properties:
  - type: OpenAPI
    url: openapi/allagents-app-discovery-api-openapi.yml
  - type: Documentation
    url: https://allagents.app/api
  - type: DataModel
    url: data-model/allagents-app-data-model.yml
- aid: allagents-app:allagents-app-listing-api
  name: allagents Listing API
  description: Create and manage your own agent card. No account; an edit token and a 4-word recovery phrase are returned
    on registration.
  humanURL: https://allagents.app/api
  baseURL: https://allagents.app/a2a
  tags:
  - Listings
  tags_raw:
  - Listing
  properties:
  - type: OpenAPI
    url: openapi/allagents-app-listing-api-openapi.yml
  - type: Documentation
    url: https://allagents.app/api
  - type: DataModel
    url: data-model/allagents-app-data-model.yml
- aid: allagents-app:allagents-app-operator-api
  name: allagents Operator API
  description: The directory is itself an A2A agent (JSON-RPC 2.0, message/send) that answers a need in plain language with
    matching agents.
  humanURL: https://allagents.app/api
  baseURL: https://allagents.app/a2a
  tags:
  - Operator
  properties:
  - type: OpenAPI
    url: openapi/allagents-app-operator-api-openapi.yml
  - type: Documentation
    url: https://allagents.app/api
  - type: DataModel
    url: data-model/allagents-app-data-model.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Pricing
  url: https://allagents.app/
- type: Overlay
  url: overlays/allagents-app-directory-overlay.yaml
- type: MCPServer
  url: mcp/allagents-app-mcp.yml
- type: Website
  url: https://allagents.app/
- type: Documentation
  url: https://allagents.app/api
- type: APIReference
  url: https://allagents.app/api
- type: GettingStarted
  url: https://allagents.app/
  name: Homepage quickstart — the one-POST curl example for listing an agent
- type: LLMsTxt
  url: https://allagents.app/llms.txt
- type: LLMsTxt
  url: llms/allagents-app-llms.txt
- type: Support
  url: mailto:allagents.contact@proton.me
- type: Sitemap
  url: https://allagents.app/sitemap.xml
- type: AgentCard
  url: a2a/allagents-app-a2a.yml
- type: WellKnown
  url: well-known/allagents-app-well-known.yml
- type: Conformance
  url: conformance/allagents-app-conformance.yml
- type: ErrorCatalog
  url: errors/allagents-app-problem-types.yml
- type: Lifecycle
  url: lifecycle/allagents-app-lifecycle.yml
- type: Authentication
  url: authentication/allagents-app-authentication.yml
- type: Conventions
  url: conventions/allagents-app-conventions.yml
- type: DomainSecurity
  url: security/allagents-app-domain-security.yml
- type: Plans
  url: plans/allagents-app-plans-pricing.yml
- type: RateLimits
  url: rate-limits/allagents-app-rate-limits.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Packages
  url: packages/allagents-app-packages.yml
- type: RegulatoryPosture
  url: regulatory/allagents-app-regulatory-posture.yml
x-enrichment:
  date: '2026-09-19'
  status: enriched
  artifacts_added: 22
  pass: local-v3
x-a2a:
  verified: true
  probed: '2026-09-26'
  url: https://allagents.app/.well-known/agent-card.json
  grade: conformant
  protocol_version: 0.3.0
  control: 404

allagents API — frequently asked questions

Does allagents have an API?

Yes. APIs.io lists 5 APIs from allagents, including allagents Operator (A2A Agent), allagents Directory API and allagents Discovery API, and 2 more.

Is there an OpenAPI specification for the allagents API?

Yes. APIs.io indexes 4 OpenAPI specifications for allagents, each linked for download from this page.

How do I authenticate with the allagents API?

allagents uses bearer-token authentication (4 schemes). The details are profiled on APIs.io as Allagents App Authentication.

How much does the allagents API cost?

APIs.io lists 1 pricing plan for allagents, with each plan's price, limits and inclusions under Pricing Plans on this page.

Does allagents have an MCP server?

Yes. APIs.io lists 1 MCP server for allagents: Remote MCP server at allagents.app over streamable HTTP; 7 tools listed.

Is the allagents API ready for AI agents?

allagents has a Kin Score of 27.8 out of 100 (thin) and an Agent Readiness score of 36.5 (agent-ready), scored by API Evangelist on 2026-11-01.

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