Free Base Blockchain Tools
REMOTE · AGENTSAPI.TOP
13 free Base tools: address labels, tx explain, balances, receipts, gas, logs, bytecode.
Available components
Last scanned (7 hours ago)
Scores higher than 46% of remote servers
Reachable. Last reached 18 Oct 2026.
Category Crypto and Web3
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. How we score → Why this is hard to score →
Endpoint Security57
- The endpoint's TLS certificate is valid, in date, and uses a strong key. View diagnostics → Pass
- 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. See how to fix → View diagnostics → Unverified
- HTTPS is enforced; there's no plaintext access path. View diagnostics → Pass
- HSTS check failed: the Strict-Transport-Security header is absent. See how to fix → View diagnostics → Fail
- DNSSEC check failed: this domain isn't protected by DNSSEC. See how to fix → View diagnostics → Fail
Transport & Reachability100
- Verified streamable-http transport via a live MCP handshake. View diagnostics → Pass
Schema Quality & AI Usability76
- AI-judged instruction clarity (good).Pass
- Tool/resource definitions use about 693 tokens (~49/item across 14 items; 14 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management20
- Stability observed for 6 of 30 days with no destabilising changes; credit accrues until the full window elapses.Partial
Tool Coverage100
- 100% of tools have a non-trivial description (not blank, and not just the tool's name).Pass
- 100% of tool parameters carry a description.Pass
Tool Safety100
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- We read all 14 captured tool definition(s), and no name or description among them implies an irreversible operation.Pass
- An AI judge read all 14 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities20
- Spec-recency check failed: implements MCP spec 2024-11-05; the latest is 2026-07-28. See how to fix → Fail
Every change we have recorded for this component, newest first. Security-relevant changes are always shown. ▲ marks a change for the better, ▼ a change for the worse; unmarked changes are neutral.
- 17 Oct 26 +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.
- 15 Oct 26 +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.
- 14 Oct 26 0
- Schema quality: 607 → 693 ▼ functional
- New tool “get_address_risk_score” functional
- 13 Oct 26 +1
- Stability: unverified → 0.03 ▲ functional
- 12 Oct 26 61
First indexed and scored.
Diagnostic detail from the automated scan of this channel: what the scanner observed at each step, so you can see exactly where a check passed or failed. It is informational only and never changes the trust score.
Captured 18 Oct 2026 · Probed https://agentsapi.top/free-blockchain/
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=agentsapi.top | CN=YE1,O=Let's Encrypt,C=US | 9 Sept 2026 | 8 Dec 2026 | ECDSA 256 | ECDSA-SHA384 | 6d307ceb814a7de4f4a9814936a80b76c8a |
| SANs: agentsapi.top | ||||||
| CN=YE1,O=Let's Encrypt,C=US (CA) | CN=Root YE,O=ISRG,C=US | 3 Sept 2025 | 2 Sept 2028 | ECDSA 384 | ECDSA-SHA384 | 5ddd70dd31f801c85c186a7a04b80afe |
| CN=Root YE,O=ISRG,C=US (CA) | CN=ISRG Root X2,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | ECDSA-SHA384 | 872165fc34b6e5fba8add5b3705fb53a |
| CN=ISRG Root X2,O=Internet Security Research Group,C=US (CA) | CN=ISRG Root X1,O=Internet Security Research Group,C=US | 13 May 2026 | 2 Sept 2032 | ECDSA 384 | SHA256-RSA | 6c8f1dc727c7117f7baf853ac980f9cd |
Background: What to check on a remote MCP endpoint →
DNSSEC insecure
Validation of agentsapi.top. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| top. | present | 41508 | 13 | Verified |
| agentsapi.top. | absent | Unsigned (proven) parent-signed NSEC/NSEC3 proves an unsigned delegation |
Authentication No authorisation required
The endpoint answered without asking for a token. Anyone who knows the URL can reach it.
| Result | No authorisation required |
|---|---|
| HTTP status | 200 |
Background: How OAuth 2.1 works in the 2026 MCP spec →
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://agentsapi.top/free-blockchain/ | Verified | 200 | |
| http (plaintext) | http://agentsapi.top/free-blockchain/ | HTTPS enforced | 308 | https://agentsapi.top/free-blockchain/ |
The tools this component advertises to a client, with an estimated token cost for each. Expand a tool to see its parameters and schema. The per-tool counts are indicative and are not scored directly; the schema's total context footprint is one signal in Schema Quality & AI Usability. A tool's description is untrusted text the model reads on every call, which is what makes this list a security surface and not just an inventory: how tool poisoning works →
estimate_gas ~79
Estimate gas needed for a transaction. Useful for dapps and wallets to show users how much gas they'll pay.
| Name | Type | Req | Description |
|---|---|---|---|
| from | string | yes | Sender address (0x + 40 hex) |
| to | string | yes | Recipient address (0x + 40 hex) |
| value | string | – | ETH value to send (in wei, hex) |
No output schema declared.
No examples provided.
explain_transaction_simple ~52
Explain a transaction in plain English: who sent what to whom, with address labels. FREE simplified version of our premium explain tool.
| Name | Type | Req | Description |
|---|---|---|---|
| tx_hash | string | yes | Transaction hash (0x + 64 hex) |
No output schema declared.
No examples provided.
get_address_label ~57
Get a human-readable label for an EVM address (100K+ entity labels: exchanges, bridges, protocols, scams). FREE, no payment required.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | EVM address (0x + 40 hex) |
No output schema declared.
No examples provided.
get_address_risk_score ~86
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.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | EVM address (0x + 40 hex) |
No output schema declared.
No examples provided.
get_balance ~34
Get ETH balance of an address on Base
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | EVM address (0x + 40 hex) |
No output schema declared.
No examples provided.
get_block_by_number ~39
Get block details by block number: timestamp, miner, transaction count, gas used.
| Name | Type | Req | Description |
|---|---|---|---|
| block_number | string | yes | Block number (decimal) |
No output schema declared.
No examples provided.
get_block_number ~18
Get the current latest block number on Base
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_contract_code ~47
Get contract bytecode at an address. Useful for checking if an address is a contract or a wallet.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | EVM address (0x + 40 hex) |
No output schema declared.
No examples provided.
get_contract_logs ~72
Get event logs from a contract in a block range. Useful for tracking transfers, approvals, etc.
| Name | Type | Req | Description |
|---|---|---|---|
| contract_address | string | yes | Contract address (0x + 40 hex) |
| from_block | string | yes | Start block number (decimal) |
| to_block | string | yes | End block number (decimal) |
No output schema declared.
No examples provided.
get_gas_price ~17
Get current gas price on Base
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
get_transaction ~33
Get transaction details by hash on Base
| Name | Type | Req | Description |
|---|---|---|---|
| tx_hash | string | yes | Transaction hash (0x + 64 hex) |
No output schema declared.
No examples provided.
get_transaction_receipt ~51
Get transaction receipt by hash: success/failure status, gas used, logs. Useful for checking if a tx succeeded.
| Name | Type | Req | Description |
|---|---|---|---|
| tx_hash | string | yes | Transaction hash (0x + 64 hex) |
No output schema declared.
No examples provided.
get_usdc_balance ~49
Get USDC balance of an address on Base (stablecoin balance, more useful than ETH for most agents)
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | EVM address (0x + 40 hex) |
No output schema declared.
No examples provided.
search_labels_by_category ~59
Search all labeled addresses by category (e.g. exchange, bridge, protocol, scam). Returns up to 50 matches.
| Name | Type | Req | Description |
|---|---|---|---|
| category | string | yes | Category to search: exchange, bridge, protocol, scam, nft, defi, other |
No output schema declared.
No examples provided.
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.
remote · agentsapi.top
claude mcp add --transport http top-agentsapi-free-blockchain 'https://agentsapi.top/free-blockchain/'
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.