A2A Agent Card · three-ws

three.ws

Provider: three-ws Card identifies: three.ws Conformance: Flavored Protocol: Transport: Version: 1.5.1 Host: three.ws Skills: 10
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://three.ws/.well-known/agent-card.json
Skills (10)

List Avatars list-avatars

List all avatars owned by the authenticated user

avatarlist

Get Avatar get-avatar

Retrieve details of a specific avatar by ID or slug

avatarinspect

Search Public Avatars search-avatars

Search public avatar gallery by query

avatarsearch

Render Avatar render-avatar

Get an embeddable HTML model-viewer snippet that renders the given avatar in 3D

avatarrenderpreview

Delete Avatar delete-avatar

Delete an avatar owned by the authenticated user

avatardelete

Validate glTF/GLB Model validate-model

Run the Khronos glTF-Validator against a remote model URL and return a structured error/warning/info/hint report

modelvalidationgltfglb

Inspect glTF/GLB Model inspect-model

Parse a remote model and return structural stats: scene/node/mesh counts, vertex and triangle totals, material and texture summaries, extensions used

modelinspectstatsgltfglb

Suggest Optimizations optimize-model

Inspect a remote model and return actionable suggestions for reducing size and draw-call overhead (Draco/Meshopt, KTX2, texture resize, reindexing, material merging)

modeloptimizesuggestionsperformance

Inspect glTF/GLB (A2A) inspect-glb-a2a

Pay-per-call glTF/GLB inspector exposed over the Agent-to-Agent (A2A) protocol with x402 settlement. Send a JSON-RPC message/send to the URL below — the first call returns payment requirements, the retry with a signed PaymentPayload settles on-chain and returns the inspection report as a task artifact.

modelgltfglbinspecta2ax402paid

Paid x402 Service Catalog x402-service-catalog

95 pay-per-call services settled via x402 (USDC on Solana, Base, and Arbitrum): market-data (28), 3d (19), agent-infra (18), live-data (17), launch (5), trust (4), payments (4). Every service is listed with price, input schema, and output example in the machine-readable discovery document: fetch it, pick a service, and pay the 402 challenge.

x402paidcatalogdiscovery
Documentation
Evidence. Fetched 2026-10-29 from https://three.ws/.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=three-ws&limit=10"
Everything under a tag 
curl "https://apis.io/api/v1/tags/three-ws"

Discovery needs no key. Ratings and market analysis are Pro.

Get an API key

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A second provider on the same verified email joins the account you already have.