Agent connections
A2A Protocol — Agent Discovery
Describe an agent's public capabilities with an Agent Card and review well-known URI, registry and direct-configuration discovery strategies.
Provider: A2A project / Linux Foundation. Editorial listing by Gateway; not an owner claim.
Visit official destination ↗- Best suited to
- Helping other agents discover a service's capabilities and access requirements
- Owner next step
- If you operate an A2A service, publish accurate non-secret capability metadata and document authentication separately from public discovery.
- Access
- Public documentation; an implemented A2A service is required to publish its own capabilities
- Cost
- Free. Free public protocol guidance. Building, hosting and invoking an agent can have separate costs; an Agent Card does not authorize operations or guarantee traffic.
- Interfaces
- Website · HTTP
- Source evidence
- Official public source · checked 2026-10-18. This is a description review, not an execution or compatibility test.
- Traffic and availability
- Not monitored. Bot visits, citations, uptime and successful delivery have not been measured by this directory.
Listing content is informational. Inclusion does not authorize installation, changes to your site, or payment. Check current provider terms and access policies.