# Avasis Tip Hub – All Topics (Solana + Base + Ethereum)

> Avasis Tip Hub – All Topics (Solana + Base + Ethereum) is a paid API for AI agents from agents.avasis.ai, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-31).

Returns a single aggregated response containing all live blockchain tip/fee data: Solana slot/height, Solana priority-fee percentiles, on-chain SOL/USD price, Base gas metrics, and Ethereum gas metrics, each with sequence number, observation timestamp, and age.

## Facts

- Endpoint: GET https://agents.avasis.ai/v1/tip/all?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/avasis-tip-hub-all-topics-solana-base-ethereum-5d8c96bf
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_vLcpTnTH77u2CN7wYouMW

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability avasis-tip-hub-all-topics-solana-base-ethereum-5d8c96bf
```

Example prompt: Give me the latest gas and fee data for all chains right now — Solana priority fees and slot, SOL/USD price, Base gas, and Ethereum gas — all in one shot.

## When to prefer this

Choose this endpoint when you need fee/gas data from multiple chains (Solana, Base, Ethereum) in a single HTTP call rather than querying each chain separately. Ideal for agents that need to compare chains before routing a transaction, monitor gas trends across ecosystems, or need SOL/USD price alongside fee data. The shared-hub design means data is always near-fresh (1-4s cadence) without the agent having to manage multiple polling connections.

## Known failure modes

- Payment failure (x402 prepaid meter exhausted or invalid payment) — returns HTTP 402
- Upstream data temporarily stale — ageMs may be elevated if a chain's data source is lagging
- Rate limiting if polled faster than refresh cadence (1-4s per topic)
- Network timeout if the hub is temporarily unreachable
- Empty or partial topics object if one chain's feed is down

## How this service works

One answer with every tip topic (Solana slot/height, Solana priority-fee percentiles, on-chain SOL/USD, Base gas and Ethereum gas), each with its seq, observedAt and age. Served from the shared hub: each topic refreshes on its own cadence (1-4 s) while anyone is polling. Prepaid meter price $0.0006/call.

## Output

A JSON object with a 'topics' map containing entries for 'base-gas', 'ethereum-gas', 'solana-slot', 'solana-priority-fee', and 'sol-usd'. Each entry includes a sequence number (seq), the topic name, ageMs (milliseconds since last update), and a data payload with chain-specific fields: for Base/Ethereum gas topics this includes gwei breakdowns (baseFee, gasPrice, maxPriorityFee, suggestedMaxFee), blockNumber, and blockAgeSeconds; for Solana topics this includes slot/height and priority-fee percentiles; for SOL/USD this includes the current price.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "errors": {},
  "topics": {
   "base-gas": {
    "seq": 812,
    "data": {
     "gwei": {
      "baseFee": 0.0021,
      "gasPrice": 0.0031,
      "maxPriorityFee": 0.001,
      "suggestedMaxFee": 0.0052
     },
     "chain": "base",
     "chainId": 8453,
     "blockNumber": 37400000,
     "blockAgeSeconds": 1
    },
    "ageMs": 420,
    "topic": "base-gas"
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/avasis-tip-hub-all-topics-solana-base-ethereum-5d8c96bf/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from agents.avasis.ai](https://www.zero.xyz/host/agents.avasis.ai/llms.txt)