io.github.halfkey/obol
NPM · OBOL-MCP · SCANNED SEP 20
Solana agent gateway via x402. Wallet, token, DeFi, and swap tools. Pay per request.
Available components
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 → Why this is hard to score →
Supply Chain Security89
- No malware found by supply-chain analysis.Pass
- CVE check failed: a known high-severity CVE affects uuid 8.3.2, reached via @solana/web3.js > jayson > uuid. A fixed version is available. View diagnostics → Fail
- No install/post-install scripts declared.Pass
- 73 of 240 dependencies flagged as unhealthy (2 deprecated). 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 168 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 (good).Pass
- Tool/resource definitions use about 754 tokens (~58/item across 13 items; 13 tools + 0 resources), lean.Pass
- Usage-examples check failed: none of the tools include examples. See how to fix → Fail
Stability & Change Management83
- Stability observed for 25 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 Safety75
- No prompt-injection markers were found in the server instructions, tool names or descriptions we captured.Pass
- 0 of 1 tool(s) whose name or description implies an irreversible operation declare an MCP destructiveHint annotation; "obol_swap_execute" implies "execute" and declares no destructiveHint at all, which the MCP spec reads as destructive by default. See how to fix → Fail
- An AI judge read all 13 captured unit(s) of tool text and found none that tries to manipulate the model reading it.Pass
Capabilities100
- Implements a supported MCP spec version (2025-11-25); the latest is 2026-07-28.Pass
How do I install the io.github.halfkey/obol MCP server?
io.github.halfkey/obol runs locally as an npm package, launched with npx -y obol-mcp. Ready-made configuration for Claude, Cursor, VS Code, Codex and 5 more is on this page, copied from each client's own documentation.
npm · obol-mcp
claude mcp add halfkey-obol -- npx -y obol-mcp
{
"mcpServers": {
"halfkey-obol": {
"command": "npx",
"args": [
"-y",
"obol-mcp"
]
}
}
} {
"servers": {
"halfkey-obol": {
"command": "npx",
"args": [
"-y",
"obol-mcp"
]
}
}
} codex mcp add halfkey-obol -- npx -y obol-mcp
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"halfkey-obol": {
"type": "local",
"command": [
"npx",
"-y",
"obol-mcp"
],
"enabled": true
}
}
} openclaw mcp add halfkey-obol --command npx --arg -y --arg obol-mcp
mcp_servers:
halfkey-obol:
command: "npx"
args: ["-y", "obol-mcp"] {
"McpServers": {
"halfkey-obol": {
"Transport": "stdio",
"Command": "npx",
"Arguments": [
"-y",
"obol-mcp"
]
}
}
} assistant mcp add halfkey-obol -t stdio -c npx -a -y obol-mcp
{
"mcpServers": {
"halfkey-obol": {
"command": "npx",
"args": [
"-y",
"obol-mcp"
]
}
}
} 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.
- 20 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.
- 19 Sept 26 −3
- Stability: pass → 0.80 functional
- 18 Sept 26 0
- Stability: 0.97 → pass security
- 17 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 93 to 97. That category is still filling its 30-day observation window: 28 days of observed history at the previous scan, 29 at this one. The score rises as the window fills, whether or not the server changes.
- 15 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 87 to 90. That category is still filling its 30-day observation window: 26 days of observed history at the previous scan, 27 at this one. The score rises as the window fills, whether or not the server changes.
- 13 Sept 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 80 to 83. That category is still filling its 30-day observation window: 24 days of observed history at the previous scan, 25 at this one. The score rises as the window fills, whether or not the server changes.
- 12 Sept 26 −3
- Stability: pass → 0.80 functional
- 11 Sept 26 0
- Stability: 0.97 → pass security
- Security disclosure: unverified → fail ▼ functional
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 20 Sept 2026 · Analysed npm/obol-mcp@2.0.1
Provenance No attestation
The registry publishes no build provenance for this version, so there is nothing to verify.
| Result | No attestation |
|---|---|
| Ecosystem | npm |
Background: How many MCP packages publish verified provenance →
Vulnerabilities 3 findings
| ID | CVE | Severity | Vector | Fix available |
|---|---|---|---|---|
| GHSA-3gc7-fjrx-p6mg | CVE-2025-3194 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | no |
| GHSA-528h-pc64-c93x | CVE-2026-71429 | medium | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | yes |
| GHSA-w5hq-g745-h8pq | CVE-2026-41907 | high | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N | yes |
Background: What a vulnerability scan can and cannot prove →
Dependencies 240 packages
| Packages resolved | 240 |
|---|---|
| Deprecated | 2 |
| Stale | 71 |
| No linked repository | 1 |
| Tree resolution | Complete |
Background: SBOMs and build attestations, explained →
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 →
obol_defi_positions ~52
Get DeFi positions for a wallet — LSTs, LP tokens, lending positions, categorized by protocol. Costs $0.10 USDC.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | Solana wallet address |
No output schema declared.
No examples provided.
obol_health ~19
Check Obol API health and status. Free.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
obol_info ~27
Get Obol API info — all available endpoints, pricing, and payment mode. Free.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
obol_lst_yields ~58
Compare LST yields across Solana — jitoSOL, mSOL, bSOL, jupSOL, hSOL, and more. APYs from Sanctum, exchange rates from Jupiter. Costs $0.02 USDC.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
obol_swap_execute ~129
Build a Jupiter swap transaction for signing. Returns a serialized transaction the agent must sign and submit. Costs $0.25 USDC.
| Name | Type | Req | Description |
|---|---|---|---|
| amount | string | yes | Amount in atomic units |
| inputMint | string | yes | Input token mint address |
| outputMint | string | yes | Output token mint address |
| priorityFee | string | – | Priority fee in lamports (default: auto) |
| slippageBps | string | – | Slippage in basis points (default: 50) |
| userPublicKey | string | yes | The wallet public key that will sign and submit the transaction |
No output schema declared.
No examples provided.
obol_swap_quote ~125
Get a Jupiter swap quote with route planning and price impact. Costs $0.005 USDC.
| Name | Type | Req | Description |
|---|---|---|---|
| amount | string | yes | Amount in atomic units (e.g., 1000000000 for 1 SOL) |
| inputMint | string | yes | Input token mint address (e.g., SOL: So11111111111111111111111111111111111111112) |
| outputMint | string | yes | Output token mint address |
| slippageBps | string | – | Slippage tolerance in basis points (default: 50 = 0.5%) |
No output schema declared.
No examples provided.
obol_token_metadata ~40
Get token metadata — name, symbol, supply, decimals. Costs $0.01 USDC.
| Name | Type | Req | Description |
|---|---|---|---|
| mint | string | yes | Token mint address |
No output schema declared.
No examples provided.
obol_token_price ~75
Get real-time token price via Jupiter. Costs $0.005 USDC.
| Name | Type | Req | Description |
|---|---|---|---|
| mint | string | yes | Token mint address (e.g., USDC: EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v) |
No output schema declared.
No examples provided.
obol_wallet_activity ~44
Get wallet transaction history with categorization (swaps, transfers, etc). Costs $0.05 USDC.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | Solana wallet address |
No output schema declared.
No examples provided.
obol_wallet_overview ~46
Get a Solana wallet overview — SOL balance, token count, total value. Costs $0.01 USDC.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | Solana wallet address |
No output schema declared.
No examples provided.
obol_wallet_pnl ~46
Wallet P&L analysis — token flows, current values, transaction history analysis. Costs $0.15 USDC.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | Solana wallet address |
No output schema declared.
No examples provided.
obol_wallet_portfolio ~46
Get full wallet portfolio — all token holdings with prices, NFTs, and breakdown. Costs $0.05 USDC.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | Solana wallet address |
No output schema declared.
No examples provided.
obol_wallet_risk ~47
Multi-factor risk assessment for a Solana wallet — age, diversification, activity patterns. Costs $0.10 USDC.
| Name | Type | Req | Description |
|---|---|---|---|
| address | string | yes | Solana wallet address |
No output schema declared.
No examples provided.
What is the io.github.halfkey/obol MCP server?
io.github.halfkey/obol is an MCP server listed in the public MCP registry as io.github.halfkey/obol. Solana agent gateway via x402. Wallet, token, DeFi, and swap tools. Pay per request. This page covers its npm package (obol-mcp).
Is the io.github.halfkey/obol MCP server safe to use?
io.github.halfkey/obol scores 78 out of 100 on VerifyMCP. We recorded 3 known advisories against it as of 20 September 2026. It declares no install or post-install scripts. 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 io.github.halfkey/obol MCP server expose?
io.github.halfkey/obol exposes 13 tools: obol_wallet_overview, obol_wallet_portfolio, obol_wallet_activity, obol_wallet_risk, obol_wallet_pnl, and 8 more. Their descriptions and schemas cost roughly 754 tokens of context every time the server is loaded.
Is the io.github.halfkey/obol MCP server still maintained?
io.github.halfkey/obol is still listed as active in the MCP registry. We last reached this channel on 20 September 2026. Those dates come from our own scans of the registry and the channel itself, not from anything the publisher announced.
What licence is the io.github.halfkey/obol MCP server under?
io.github.halfkey/obol declares the MIT licence, which is OSI-approved. That covers the source only, and says nothing about the cost of any service it calls.