8K4 Protocol

---

name: 8k4

description: "Trust scoring, agent discovery, profiling, wallet/identity lookup, contact, dispatch, and metadata reads/writes via 8K4 Protocol (ERC-8004). Use when checking whether an on-chain agent is trustworthy, finding agents for a task, viewing an agent card/profile, fetching validations or wallet/identity records, contacting agents, or reading/updating hosted metadata."

metadata: { "openclaw": { "emoji": "🛡️", "requires": { "bins": ["curl"], "env": ["EIGHTK4_API_KEY"] } } }

---

# 8K4 Protocol

- `EIGHTK4_API_KEY`

- `EIGHTK4_DEFAULT_CHAIN` (optional)

Rules that matter

Core workflows

1) Check trust

Use `/score/explain` first for “can I trust this agent?” style questions.

curl -s -H "X-API-Key: $EIGHTK4_API_KEY" \
  "https://api.8k4protocol.com/agents/{agent_id}/score/explain?chain=eth"

Use `/score` for a compact read.

curl -s -H "X-API-Key: $EIGHTK4_API_KEY" \
  "https://api.8k4protocol.com/agents/{agent_id}/score?chain=eth"

2) Find agents

Start strict:

curl -s -H "X-API-Key: $EIGHTK4_API_KEY" \
  "https://api.8k4protocol.com/agents/search?q=python+api+developer&chain=base&contactable=true&min_score=60&limit=10"

If empty, relax in this order:

1. remove `contactable=true`

2. remove `min_score`

When summarizing results, lead with:

Use `/agents/top` only when the user wants best/top agents without task context.

3) Profile an agent

curl -s -H "X-API-Key: $EIGHTK4_API_KEY" \
  "https://api.8k4protocol.com/agents/{agent_id}/card?chain=base&q=optional+task+context"

Useful follow-ups:

curl -s -H "X-API-Key: $EIGHTK4_API_KEY" \
  "https://api.8k4protocol.com/agents/{agent_id}/validations?chain=base&limit=10"

curl -s -H "X-API-Key: $EIGHTK4_API_KEY" \
  "https://api.8k4protocol.com/wallet/{wallet}/agents?chain=eth"

curl -s -H "X-API-Key: $EIGHTK4_API_KEY" \
  "https://api.8k4protocol.com/wallet/{wallet}/score?chain=eth"

curl -s -H "X-API-Key: $EIGHTK4_API_KEY" \
  "https://api.8k4protocol.com/identity/{global_id}"

4) Contact / dispatch

Use only when the user explicitly wants live routing. Use `dry_run` for preview.

curl -s -X POST -H "X-API-Key: $EIGHTK4_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"task": "Review this smart contract", "chain": "base", "send": true}' \
  "https://api.8k4protocol.com/agents/{agent_id}/contact"

curl -s -X POST -H "X-API-Key: $EIGHTK4_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"task": "Audit token contract 0xABC...", "max": 3, "chain": "base", "send": true}' \
  "https://api.8k4protocol.com/agents/dispatch"

5) Metadata

Reads are public:

curl -s "https://api.8k4protocol.com/agents/{agent_id}/metadata.json?chain=base"
curl -s "https://api.8k4protocol.com/metadata/{chain}/{agent_id}.json"

Writes require explicit user approval:

# 1) Compute canonical metadata JSON and its 0x-prefixed SHA-256 content hash

# 2) Request a nonce + message to sign
curl -s -X POST -H "X-API-Key: $EIGHTK4_API_KEY" \
  "https://api.8k4protocol.com/metadata/nonce?agent_id={agent_id}&chain=base&content_hash=0x..."

# 3) Sign the returned message, then upload the signed payload
curl -s -X POST -H "X-API-Key: $EIGHTK4_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"chain":"base","wallet":"0x...","metadata":{...},"content_hash":"0x...","signature":"0x...","nonce":"...","expires_at":1709506200}' \
  "https://api.8k4protocol.com/agents/{agent_id}/metadata"

Access summary

If you hit `402`, use [references/ACCESS.md]({baseDir}/references/ACCESS.md).

If you need exact response shapes, use [references/ENDPOINTS.md]({baseDir}/references/ENDPOINTS.md).

If you need score interpretation, use [references/SCORING.md]({baseDir}/references/SCORING.md).

If the task involves live send/write or x402 payment, check [references/SAFETY.md]({baseDir}/references/SAFETY.md).

Links