# Neva A2A Agent

**Canonical:** https://apis.io/apis/dt-agent-co-uk/neva-a2a-agent/  
**Provider:** Neva — https://apis.io/providers/dt-agent-co-uk/  
**Documentation:** https://neva.dt-agent.co.uk/.well-known/agent-card.json

Neva A2A Agent is published by [Neva](https://apis.io/providers/dt-agent-co-uk/) on the [APIs.io](https://apis.io/) network. Tagged areas include A2A, AI Agents, JSON-RPC, and Agent Services. The published artifact set on APIs.io includes authentication docs and rate-limit docs.

Neva's agent-to-agent surface: an anonymous A2A 0.3.0 JSON-RPC endpoint at the root of neva.dt-agent.co.uk (POST only; GET returns 405) implementing the a2a-sdk method set. message/send takes a full Message with a mandatory client-supplied messageId and {"kind":"text","text":...} parts; there is no streaming, no push notifications, no queryable tasks and no authenticated extended card. One skill, build-with-us. On 2026-09-19 a well-formed message/send returned JSON-RPC -32603 wrapping an upstream HTTP 401 "API key is invalid" - the agent's own model-provider credential - so the agent validates but does not currently reply. No OpenAPI, documentation or SDK.

## Machine-readable artifacts (8)

- **AgentCard** — https://raw.githubusercontent.com/api-evangelist/dt-agent-co-uk/refs/heads/main/a2a/dt-agent-co-uk-a2a.yml
- **Authentication** — https://raw.githubusercontent.com/api-evangelist/dt-agent-co-uk/refs/heads/main/authentication/dt-agent-co-uk-authentication.yml
- **Conventions** — https://raw.githubusercontent.com/api-evangelist/dt-agent-co-uk/refs/heads/main/conventions/dt-agent-co-uk-conventions.yml
- **ErrorCatalog** — https://raw.githubusercontent.com/api-evangelist/dt-agent-co-uk/refs/heads/main/errors/dt-agent-co-uk-problem-types.yml
- **RateLimits** — https://raw.githubusercontent.com/api-evangelist/dt-agent-co-uk/refs/heads/main/rate-limits/dt-agent-co-uk-rate-limits.yml
- **Conformance** — https://raw.githubusercontent.com/api-evangelist/dt-agent-co-uk/refs/heads/main/conformance/dt-agent-co-uk-conformance.yml
- **Lifecycle** — https://raw.githubusercontent.com/api-evangelist/dt-agent-co-uk/refs/heads/main/lifecycle/dt-agent-co-uk-lifecycle.yml
- **APIsJSON** — https://raw.githubusercontent.com/api-evangelist/dt-agent-co-uk/refs/heads/main/apis.yml

## Tags

A2A, AI Agents, JSON-RPC, Agent Services

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/dt-agent-co-uk/neva-a2a-agent/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/dt-agent-co-uk/.