# Free Base Blockchain Tools (remote · agentsapi.top)

13 free Base tools: address labels, tx explain, balances, receipts, gas, logs, bytecode.

- Trust score: 64/100 (medium)
- Registry status: active
- Liveness: live
- Owner verified: no
- Last scored: 2026-10-18

## Components

- remote · `agentsapi.top`: 64/100 (this document), [markdown](https://verifymcp.io/servers/top-agentsapi-free-blockchain/free-blockchain.md), [page](https://verifymcp.io/servers/top-agentsapi-free-blockchain/free-blockchain)

## Channel facts

- Endpoint: `https://agentsapi.top/free-blockchain/`
- Transports: `streamable-http`
- Auth: `none`
- Version: `1.0.0`

## Trust breakdown

How this component scores in each security and reliability category. Every signal is checked automatically against the live server, and we only credit what we can confirm. Scores are 0–100 per category. Scoring method: https://verifymcp.io/docs/scoring (what has changed: https://verifymcp.io/docs/scoring/changelog)

Scored 2026-10-18.

- **Endpoint Security**: 57/100
  - The endpoint's TLS certificate is valid, in date, and uses a strong key.
  - Authorisation not fully verified: no authorisation is required to call this server, and 14 tool(s) never declared a destructiveHint. The MCP spec treats an absent hint as destructive by default, so we cannot call this surface safe.
  - HTTPS is enforced; there's no plaintext access path.
  - HSTS check failed: the Strict-Transport-Security header is absent.
  - DNSSEC check failed: this domain isn't protected by DNSSEC.
- **Transport & Reachability**: 100/100
  - Verified streamable-http transport via a live MCP handshake.
- **Schema Quality & AI Usability**: 76/100
  - AI-judged instruction clarity (good).
  - Tool/resource definitions use about 693 tokens (~49/item across 14 items; 14 tools + 0 resources), lean.
  - Usage-examples check failed: none of the tools include examples.
- **Stability & Change Management**: 20/100
  - Stability observed for 6 of 30 days with no destabilising changes; credit accrues until the full window elapses.
- **Tool Coverage**: 100/100
  - 100% of tools have a non-trivial description (not blank, and not just the tool's name).
  - 100% of tool parameters carry a description.
- **Tool Safety**: 100/100
  - No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.
  - We read all 14 captured tool definition(s), and no name or description among them implies an irreversible operation.
  - An AI judge read all 14 captured unit(s) of tool text and found none that tries to manipulate the model reading it.
- **Capabilities**: 20/100
  - Spec-recency check failed: implements MCP spec 2024-11-05; the latest is 2026-07-28.

## Install

### How do I install the Free Base Blockchain Tools MCP server?

Free Base Blockchain Tools is a hosted endpoint at https://agentsapi.top/free-blockchain/, so there is nothing to install locally. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.

### Claude

```bash
claude mcp add --transport http top-agentsapi-free-blockchain 'https://agentsapi.top/free-blockchain/'
```

### Cursor

```json
{
  "mcpServers": {
    "top-agentsapi-free-blockchain": {
      "url": "https://agentsapi.top/free-blockchain/"
    }
  }
}
```

### VS Code

```json
{
  "servers": {
    "top-agentsapi-free-blockchain": {
      "type": "http",
      "url": "https://agentsapi.top/free-blockchain/"
    }
  }
}
```

### Codex

```toml
[mcp_servers.top-agentsapi-free-blockchain]
url = "https://agentsapi.top/free-blockchain/"
```

### opencode

```json
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "top-agentsapi-free-blockchain": {
      "type": "remote",
      "url": "https://agentsapi.top/free-blockchain/",
      "enabled": true
    }
  }
}
```

### OpenClaw

```bash
openclaw mcp add top-agentsapi-free-blockchain --url 'https://agentsapi.top/free-blockchain/' --transport streamable-http
```

### Hermes

```yaml
mcp_servers:
  top-agentsapi-free-blockchain:
    url: "https://agentsapi.top/free-blockchain/"
```

### Netclaw

```json
{
  "McpServers": {
    "top-agentsapi-free-blockchain": {
      "Transport": "http",
      "Url": "https://agentsapi.top/free-blockchain/"
    }
  }
}
```

### Vellum

```bash
assistant mcp add top-agentsapi-free-blockchain -t streamable-http -u 'https://agentsapi.top/free-blockchain/'
```

### Other

```json
{
  "mcpServers": {
    "top-agentsapi-free-blockchain": {
      "type": "http",
      "url": "https://agentsapi.top/free-blockchain/"
    }
  }
}
```

The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.

## Changelog

Every change recorded for this component, newest first. Days that predate change tracking, or that we cannot explain, say so: "we were watching and nothing happened" and "we were not watching" are different claims.

### 2026-10-17 (score 64, +1)

No change was recorded against any check on this day. Stability & Change Management went from 13 to 17. That category is still filling its 30-day observation window: 4 days of observed history at the previous scan, 5 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-15 (score 63, +1)

No change was recorded against any check on this day. Stability & Change Management went from 7 to 10. That category is still filling its 30-day observation window: 2 days of observed history at the previous scan, 3 at this one. The score rises as the window fills, whether or not the server changes.

### 2026-10-14 (score 62, 0)

- [functional regression] Schema quality: 607 → 693
- [functional] New tool “get_address_risk_score”

### 2026-10-13 (score 62, +1)

- [functional improvement] Stability: unverified → 0.03

### 2026-10-12 (score 61)

First indexed and scored.

## MCP tools (14)

### `get_block_number` (~18 tokens)

Get the current latest block number on Base

### `get_gas_price` (~17 tokens)

Get current gas price on Base

### `get_balance` (~34 tokens)

Get ETH balance of an address on Base

Input parameters:

- `address` (string, required): EVM address (0x + 40 hex)

### `get_transaction` (~33 tokens)

Get transaction details by hash on Base

Input parameters:

- `tx_hash` (string, required): Transaction hash (0x + 64 hex)

### `get_address_label` (~57 tokens)

Get a human-readable label for an EVM address (100K+ entity labels: exchanges, bridges, protocols, scams). FREE, no payment required.

Input parameters:

- `address` (string, required): EVM address (0x + 40 hex)

### `get_usdc_balance` (~49 tokens)

Get USDC balance of an address on Base (stablecoin balance, more useful than ETH for most agents)

Input parameters:

- `address` (string, required): EVM address (0x + 40 hex)

### `explain_transaction_simple` (~52 tokens)

Explain a transaction in plain English: who sent what to whom, with address labels. FREE simplified version of our premium explain tool.

Input parameters:

- `tx_hash` (string, required): Transaction hash (0x + 64 hex)

### `search_labels_by_category` (~59 tokens)

Search all labeled addresses by category (e.g. exchange, bridge, protocol, scam). Returns up to 50 matches.

Input parameters:

- `category` (string, required): Category to search: exchange, bridge, protocol, scam, nft, defi, other

### `get_transaction_receipt` (~51 tokens)

Get transaction receipt by hash: success/failure status, gas used, logs. Useful for checking if a tx succeeded.

Input parameters:

- `tx_hash` (string, required): Transaction hash (0x + 64 hex)

### `get_block_by_number` (~39 tokens)

Get block details by block number: timestamp, miner, transaction count, gas used.

Input parameters:

- `block_number` (string, required): Block number (decimal)

### `get_contract_logs` (~72 tokens)

Get event logs from a contract in a block range. Useful for tracking transfers, approvals, etc.

Input parameters:

- `contract_address` (string, required): Contract address (0x + 40 hex)
- `from_block` (string, required): Start block number (decimal)
- `to_block` (string, required): End block number (decimal)

### `estimate_gas` (~79 tokens)

Estimate gas needed for a transaction. Useful for dapps and wallets to show users how much gas they'll pay.

Input parameters:

- `from` (string, required): Sender address (0x + 40 hex)
- `to` (string, required): Recipient address (0x + 40 hex)
- `value` (string): ETH value to send (in wei, hex)

### `get_contract_code` (~47 tokens)

Get contract bytecode at an address. Useful for checking if an address is a contract or a wallet.

Input parameters:

- `address` (string, required): EVM address (0x + 40 hex)

### `get_address_risk_score` (~86 tokens)

Get a risk score (0-100) for an address based on our 100K+ labeled address database. Scam addresses score 90-100; known exchanges/bridges score 0-20; unknown addresses score 50. Use this BEFORE sending funds to verify the destination.

Input parameters:

- `address` (string, required): EVM address (0x + 40 hex)

## Diagnostics

Captured diagnostic sections: TLS, DNSSEC, Authorisation, Transports. The full working is on the page: https://verifymcp.io/servers/top-agentsapi-free-blockchain/free-blockchain#diagnostics

## Score history

- 2026-10-18: 64
- 2026-10-17: 64
- 2026-10-16: 63
- 2026-10-15: 63
- 2026-10-14: 62
- 2026-10-13: 62
- 2026-10-12: 61

## Common questions

### What is the Free Base Blockchain Tools MCP server?

Free Base Blockchain Tools is an MCP server listed in the public MCP registry as top.agentsapi/free-blockchain. 13 free Base tools: address labels, tx explain, balances, receipts, gas, logs, bytecode. This page covers its hosted endpoint (https://agentsapi.top/free-blockchain/).

### Is the Free Base Blockchain Tools MCP server safe to use?

Free Base Blockchain Tools scores 64 out of 100 on VerifyMCP. That is a record of what we were able to check automatically, not an endorsement. The category breakdown on this page shows every signal behind the number, including the ones we could not confirm.

### What tools does the Free Base Blockchain Tools MCP server expose?

Free Base Blockchain Tools exposes 14 tools: get_block_number, get_gas_price, get_balance, get_transaction, get_address_label, and 9 more. Their descriptions and schemas cost roughly 693 tokens of context every time the server is loaded.

### Does the Free Base Blockchain Tools MCP server require authentication?

No. We connected to Free Base Blockchain Tools without credentials and it answered, so anything it exposes is reachable by anyone who knows the address.

### Is the Free Base Blockchain Tools MCP server still maintained?

Free Base Blockchain Tools is still listed as active in the MCP registry. We last reached this channel on 18 October 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.

## Links

- Remote endpoint: https://agentsapi.top/free-blockchain/
- Website: https://agentsapi.top/free-blockchain/
- Changelog RSS feed: https://verifymcp.io/servers/top-agentsapi-free-blockchain/free-blockchain.xml
- Changelog JSON feed: https://verifymcp.io/servers/top-agentsapi-free-blockchain/free-blockchain.json
- HTML version of this page: https://verifymcp.io/servers/top-agentsapi-free-blockchain/free-blockchain