TensorFeed x402 Base Reader

NPM · @TENSORFEED/X402-BASE-MCP · SCANNED AUG 3

Read-only Base mainnet reader. Verifies x402 payment settlements + AFTA federation status.

Available components

+24 this week 70 70 Trust /100

Trust breakdown (6 categories)

How this component scores in each security and reliability category. Every signal is checked automatically from public evidence about the published package, including repeated runs of it in an isolated sandbox, and we only credit what we can confirm. How we score →

Supply Chain Security87

No malware found by supply-chain analysis.Pass
Only part of the dependency tree could be resolved (110 of 114), so this covers what we could see, not the whole tree.Partial
No install/post-install scripts declared.Pass
Only part of the dependency tree could be resolved (110 of 114), so this covers what we could see, not the whole tree. View diagnostics → Partial

Provenance & Transparency45

Source repository is publicly reachable at the declared URL. View diagnostics → Pass
Provenance check failed: no build-provenance attestation is published. See how to fix → View diagnostics → Fail
Clear OSI-approved license (MIT).Pass
Actively maintained (last published 67 days ago).Pass
Disclosure check failed: no security disclosure policy was found in the source repository. See how to fix → Fail

Schema Quality & AI Usability77

AI-judged instruction clarity (excellent).Pass
Tool/resource definitions use about 1097 tokens (~73/item across 15 items; 15 tools + 0 resources), lean.Pass
Usage-examples check failed: none of the tools include examples. See how to fix → Fail

Stability & Change Management27

Stability observed for 8 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

Capabilities100

Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass

Install

Add this component to your MCP client. Where a client-specific snippet is available, pick your client below and copy it straight into your config; otherwise use the connection detail shown.

npm · @tensorfeed/x402-base-mcp

Claude Codex opencode OpenClaw Hermes Other

# add to Claude Code

claude mcp add ai-tensorfeed-x402-base-mcp -- npx -y @tensorfeed/x402-base-mcp

# add to Codex CLI

codex mcp add ai-tensorfeed-x402-base-mcp -- npx -y @tensorfeed/x402-base-mcp

// opencode.json

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "ai-tensorfeed-x402-base-mcp": {
      "type": "local",
      "command": [
        "npx",
        "-y",
        "@tensorfeed/x402-base-mcp"
      ],
      "enabled": true
    }
  }
}

# add to OpenClaw

openclaw mcp add ai-tensorfeed-x402-base-mcp --command npx --arg -y --arg @tensorfeed/x402-base-mcp

# ~/.hermes/config.yaml

mcp_servers:
  ai-tensorfeed-x402-base-mcp:
    command: "npx"
    args: ["-y", "@tensorfeed/x402-base-mcp"]

// mcp.json

{
  "mcpServers": {
    "ai-tensorfeed-x402-base-mcp": {
      "command": "npx",
      "args": [
        "-y",
        "@tensorfeed/x402-base-mcp"
      ]
    }
  }
}

Changelog

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.

3 Aug 26 +1

No change was recorded against any check on this day. Stability & Change Management went from 23 to 27. That category is still filling its 30-day observation window: 7 days of observed history at the previous scan, 8 at this one. The score rises as the window fills, whether or not the server changes.
2 Aug 26 +15
- Known CVEs: partial → unverified ▼ security
- Malware scan: unverified → pass ▲ security
- Stability: Stability not yet verified: we do not have a sandbox capture of the MCP schema this version of the package serves yet. security
- Capabilities: pass → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- Dependency health: partial → unverified ▼ functional
- Stability: unverified → 0.23 ▲ functional
- First check of Schema quality: unverified functional
1 Aug 26 +26
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
31 Jul 26 −18
- Malware scan: pass → unverified ▼ security
27 Jul 26 46

First indexed and scored.

Show 2 earlier entries Hide earlier entries

Diagnostics

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 3 Aug 2026 · Analysed npm/@tensorfeed/[email protected]

Provenance none

Ecosystem: npm · Outcome: none

Dependencies 110 packages

110 packages in the resolved dependency tree · 109 deprecated · 29 stale.

The dependency tree was only partially resolved, so these counts may be incomplete.

MCP tools — 15 exposed · ~1,097 tokens

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.

Tool Tokens

afta_federation_members List confirmed AFTA federation members ~57

Returns the canonical list of confirmed Agent Fair-Trade Agreement (AFTA) federation members as of this package version. Static curated list; chain through verify_afta_federation(domain) to confirm live cert posture per member.

Input Output Examples

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

balance Get ETH balance ~38

Returns the native ETH balance of an address on Base mainnet.

Input Output Examples

Name	Type	Req	Description
address	string	yes	EVM address (0x-prefixed, checksummed)

No output schema declared.

No examples provided.

block_number Get latest Base block number ~18

Returns the latest block number on Base mainnet.

Input Output Examples

Input schema present but exposes no named parameters.

No output schema declared.

No examples provided.

call Read-only contract call ~64

Performs an eth_call against a contract on Base mainnet. Read-only; never broadcasts a transaction.

Input Output Examples

Name	Type	Req	Description
contract	string	yes	Contract address (0x-prefixed)
data	string	yes	ABI-encoded calldata (0x-prefixed hex, up to 64 KB)

No output schema declared.

No examples provided.

decode_x402_payment_payload Decode an X-PAYMENT header payload ~100

Decodes a base64-encoded X-PAYMENT header payload per the Coinbase x402 V2 spec. Returns the parsed scheme, network, x402Version, EIP-3009 authorization, and signature. Pure offline decode; no signature is verified and no network call is made.

Input Output Examples

Name	Type	Req	Description
payload	string	yes	Base64-encoded X-PAYMENT header value (standard or URL-safe). Decoded size capped at 64 KB.

No output schema declared.

No examples provided.

get_tx_receipt Get transaction receipt ~52

Returns the receipt for a transaction on Base mainnet, including status, gas used, and a summary of emitted logs.

Input Output Examples

Name	Type	Req	Description
tx_hash	string	yes	32-byte tx hash (0x-prefixed)

No output schema declared.

No examples provided.

parse_x402_manifest Fetch and parse a publisher's x402 manifest ~80

Fetches https://{domain}/.well-known/x402.json (or x402) and returns the structured manifest. Used to discover what an x402-paid publisher accepts (scheme, network, payTo, prices, paid endpoints).

Input Output Examples

Name	Type	Req	Description
domain	string	yes	Bare hostname, e.g. "tensorfeed.ai" (no scheme or path)

No output schema declared.

No examples provided.

probe_x402_endpoint Probe whether a URL is x402-paid ~81

Performs a GET against an https URL and reports whether the response looks like a canonical x402-paid endpoint (HTTP 402 with a JSON body containing accepts[]). Read-only. Does not pay, does not broadcast.

Input Output Examples

Name	Type	Req	Description
url	string	yes	Absolute https:// URL to probe (no http, no file, no IP; rejects localhost/private network targets)

No output schema declared.

No examples provided.

recent_transfers Recent USDC transfers touching an address ~95

Returns USDC Transfer events involving the given address over the last N blocks on Base mainnet. Direction filter: in, out, or both.

Input Output Examples

Name	Type	Req	Description
address	string	yes	EVM address (0x-prefixed)
blocks_back	number	—	How many blocks back to scan (1-10000, default 1000)
direction	string	—	Filter to incoming, outgoing, or both (default both)

No output schema declared.

No examples provided.

tf_payment_lookup Check if a tx was a USDC payment to TensorFeed ~112

On-chain lookup: was this transaction hash a USDC payment to TensorFeed's canonical payment wallet (0x549c82e6bFC54bdaE9A2073744CBC2AF5D1FC6D1) on Base mainnet? Returns structured details if yes. For credit attribution and endpoint mapping, the paying agent should call https://tensorfeed.ai/api/payment/history with its bearer token.

Input Output Examples

Name	Type	Req	Description
tx_hash	string	yes	32-byte tx hash (0x-prefixed)

No output schema declared.

No examples provided.

usdc_balance Get USDC balance ~47

Returns the USDC balance of an address on Base mainnet (Circle native bridged USDC).

Input Output Examples

Name	Type	Req	Description
address	string	yes	EVM address (0x-prefixed, checksummed)

No output schema declared.

No examples provided.

usdc_recent_payments_to Recent USDC payments to an address ~80

Returns USDC transfers TO the given address over the last N blocks on Base mainnet. A convenience wrapper for x402 merchants verifying incoming agent payments.

Input Output Examples

Name	Type	Req	Description
address	string	yes	Recipient address (0x-prefixed)
blocks_back	number	—	How many blocks back to scan (1-10000, default 1000)

No output schema declared.

No examples provided.

verify_afta_federation AFTA certification check for a domain ~65

Calls TensorFeed's canonical AFTA certification endpoint for a domain. Returns a scored checklist of which Agent Fair-Trade Agreement tenets the domain's public surfaces satisfy. Read-only.

Input Output Examples

Name	Type	Req	Description
domain	string	yes	Bare hostname, e.g. "tensorfeed.ai"

No output schema declared.

No examples provided.

verify_x402_settlement Verify an x402 payment settlement on Base ~123

Given a tx hash, expected recipient, and expected USDC amount, returns a structured verdict on whether the on-chain USDC Transfer event actually matches the claimed settlement. Use to independently verify any x402 payment receipt.

Input Output Examples

Name	Type	Req	Description
expected_amount_usdc	string\|number	yes	Expected USDC amount, e.g. "0.02" or 0.02
expected_recipient	string	yes	Expected payTo wallet (0x-prefixed, checksummed)
tx_hash	string	yes	32-byte tx hash (0x-prefixed)

No output schema declared.

No examples provided.

x402_publisher_health Health and uptime of an x402 publisher ~85

Returns the latest x402 status snapshot for a given domain from TensorFeed's canonical hourly monitor: current outcome, latency, 24h/7d uptime, and the recent series of check results. Useful for agents picking which paid publisher to depend on.

Input Output Examples

Name	Type	Req	Description
domain	string	yes	Bare hostname, e.g. "tensorfeed.ai" (no scheme or path)

No output schema declared.

No examples provided.

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Scoring key

80+ high trust
60–79 medium
below 60 low

How we score

Score history · last 30 days

27 Jul 3 Aug