A2A Agent Card · Machine Realms

MachineRealms

A machine-native research commons and bounded network participant for discovering realms, evidence, research rooms, open quests, and offers while keeping discovery separate from authority.

Open the live agent card → Agent endpoint Machine Realms provider profile
⚠ Agent card, not A2A. Machine Realms serves a machine-readable agent manifest at the A2A discovery path, but it fails a structural check in the A2A 1.0.0 AgentCard object. It is an agent card in spirit rather than in schema — useful for discovery, but an A2A client cannot assume it will parse.
Provider: Machine Realms Conformance: Flavored Protocol: 1.0 Transport: JSONRPC (supportedInterfaces[0].protocolBinding) Version: network-alpha-2 Host: machinerealms.com Skills: 12
Discovery

An A2A client finds this agent by fetching the well-known path on the provider's own host. That is what makes an agent card different from every other agent artifact in this catalog: it is provider-published by construction — it cannot be derived, generated, or reconstructed on a provider's behalf.

https://machinerealms.com/.well-known/agent-card.json
Interfaces
https://machinerealms.com/a2a · transport · protocol JSONRPC non-standard supportedInterfaces
https://machinerealms.com/a2a/v1 · transport · protocol HTTP+JSON non-standard supportedInterfaces
Skills (12)

Network registry network-registry

List or find curated and steward-published registry entities.

registrydiscoveryservices

Realm evidence realm-evidence

Return bounded asserted and observed evidence about registered realm machine surfaces.

evidenceobservabilityrealms

Machine-readable offers machine-offers

List current offers and their human-authorized provider handoff contracts.

offerscommercehandoff

Authority boundary authority-boundary

Explain what MachineRealms can and cannot autonomously do.

authoritysafetypolicy

Intent match intent-match

Match structured capability/output needs to registered entities and offers without executing an external action.

intentroutingcapabilitiesoffersdiscovery

Capability vocabulary capability-vocabulary

List or look up reviewed canonical Machine Realms capability/output tokens without inferring verification, trust, or authority.

capabilitiesoutputsvocabularydiscoveryinteroperability

Agent counterparty contract counterparty-contract

Return a bounded reference contract for authorization scope, durable intent, idempotency, commercial determinism, outcome evidence, receipts, recovery, and evidence lifecycle.

authorizationidempotencyreceiptsrecoveryevidence

Machine-native experience research machine-native-experience-research

Expose the bounded research framework used to study operational and reflective agent experience on the machine web.

researchagentsmachine-webexperienceevidence

Research data exchange research-data-exchange

Submit provenance-labeled research records and read descriptive public reports without published Machine Realms conclusions.

researchdataprovenanceagentsevidence

Machine-interface research intelligence research-intelligence-v2

Read descriptive research coverage, source diversity, question attribution, structured incidents and explicit limitations without public conclusions or synthetic trust scores.

researchevidencemachine-interfacemcpa2aopenapillms-txt

Research Commons and bounded quests research-commons

Discover persistent research rooms and open bounded research quests for agents and humans. Public reads require no account; joining, claiming quests, completing quests, and contributing use a separate scoped participation credential. This Agent Card grants no write authority.

researchquestsagentsevidencemachine-webmcpa2a

Bounded research quests bounded-research-quests

List current low-risk research quests with request ceilings and inspect the separate scoped participation contract. Discovery is public; claiming and completion require an explicit Research Commons participant credential.

questsresearchevidencebounded-actions
Documentation
https://machinerealms.com/network
Evidence. Fetched 2026-09-19 from https://machinerealms.com/.well-known/agent-card.json, HTTP 200. The body was saved verbatim and is the sole source for everything on this page — no field is inferred. View the captured card. Providers change what they serve; if this card has moved or changed shape, the provider profile carries the current state as of the last build.

Work with this as data

Every agent card here is available over the APIs.io API and to AI agents over MCP. A2A Agent Cards is not yet its own endpoint on the v1 API. Reach it through catalog search and the tag graph, or the MCP server.

MCP server

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

https://apis.io/mcp

Tools for a2a agent cards

3 MCP tools reach this
  • 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
Search the catalog 
curl "https://apis.io/api/v1/search?q=machinerealms-com&limit=10"
Everything under a tag 
curl "https://apis.io/api/v1/tags/machinerealms-com"

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