Signer MCP vs Priors
A side-by-side look at the Signer MCP and Priors MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.
Verdict: choose Signer MCP for finance & fintech work as a local process; choose Priors for finance & fintech over a hosted endpoint. You can also run both side by side in one mcpServers block.
Which MCP server should you choose?
Choose Signer MCP when
- You need dedicated capabilities in the Finance & Fintech domain.
- You prefer a local stdio subprocess transport.
- Its auth model fits you: API key required.
- You have the keys it needs:
SIGNER_GATEWAY_URL, SIGNER_API_TOKEN, SIGNER_FETCH_TIMEOUT_MS. - You want tools like
get_verified_price, list_venues, get_attestation.
Choose Priors when
- You need dedicated capabilities in the Finance & Fintech domain.
- You prefer a remote HTTP/SSE transport.
- Its auth model fits you: No auth required.
- You have the keys it needs:
PRIORS_KEY. - You want tools like
pay_url, wallet_balance, credit_status.
Feature & specification comparison
Rows where the two servers differ are marked.
| Spec | ||
|---|---|---|
| Category | Finance & Fintech | Finance & Fintech |
| Quality signal | 64/100 · Good | 85/100 · Excellent |
| Install command | Confirmed | Confirmed |
| Transport | Local subprocess (stdio) | Remote HTTP/SSE |
| Auth | API key required | No auth required |
| Pricing | Paid service | Free |
| Required env vars | SIGNER_GATEWAY_URLSIGNER_API_TOKENSIGNER_FETCH_TIMEOUT_MS | PRIORS_KEY |
| Verified owner | Community listing | Verified |
| GitHub stars | 2 | 5 |
| Directory activity | 5 views 0 installs 0 upvotes | 8 views 4 installs 0 upvotes |
| Tools | 7 | 20 |
| Full listing | View Signer MCP | View Priors |
Tools & capabilities
Signer MCP tools 7
get_verified_priceRead a Uniswap V3 token price from The Graph and return it ONLY if four checks pass: the indexer signed the exact bytes that arrived, that signer resolves on chain to an indexer with stake, the reading is a usable price (a verified signature over a GraphQL error or a zero is not a price), and the price's own age is measured apart from the subgraph head's age — a head can be fresh while the price it carries is a year old. On refusal no price is returned and the answer names both the check that stopped it (`stage`) and that check's own reason (`cause`): `price_absent_or_zero`, `graphql_errors` and `price_stale` are three different problems with three different fixes. Costs one cent in USDC on Base per query and needs X402_PRIVATE_KEY set; without that key it refuses `no_payer_key` and spends nothing. Name the token by `token_address` when you can: a ticker is not a key, and this subgraph holds several tokens called WETH. With neither address nor ticker it returns the most recently priced tokens, filtered to those that actually carry a price. Runs OUTSIDE the enclave.list_venuesList the venues this Signer can sign trades for. Returns the venue id, asset class (perp / spot / margin), and auth scheme (hmac / eip712 / ed25519). Read-only static manifest — does NOT need the Signer gateway to be reachable. Call this first to discover what's signable.get_attestationFetch the Signer enclave's AWS Nitro attestation document with a FRESH NONCE and verify it locally, with no dependencies and no trust in this tool's own summary. Five named checks are returned and any of them can fail: the document decodes as a COSE_Sign1 (document_readable), the nonce inside it is the one just sent (nonce_echoed), its root certificate is the pinned AWS Nitro root (root_pinned), the certificate chain leads to that root (chain_verified), and the hardware signature covers these exact bytes (signature_verified). PCR0/PCR1/PCR2 are read out of the SIGNED bytes, not from a field beside them. WHAT THIS DOES NOT ESTABLISH: that PCR0 corresponds to the published source — rebuild the image from the public clone and compare, or query the on-chain PCR0 registry; and nothing about any past signature, since an attestation speaks about the code that answered this request. If any check is false, treat the document as no evidence rather than weak evidence.get_accountReturn equity, free margin, and open positions for a venue. Read-only (does not sign anything that mutates state). Use BEFORE place_order to confirm the account has margin. Requires SIGNER_API_TOKEN.place_orderPlace a single order on the named venue. Accepts canonical symbol (BTC / BTCUSDT) and qty in BASE ASSET; translates both to the venue's native format (okx sizes in contracts) and echoes the translation in the result — always check `translation.sent` to see what actually hit the exchange. The Signer enclave signs the venue-native payload using a key that has never been exported. Policy enforced server-side: orders that exceed per-asset caps are rejected by the enclave before signing. Returns the venue's order_id on success. Side effect: real or testnet trade depending on venue env.place_hedgePlace a 2-leg MARKET hedge ATOMICALLY: both legs are signed inside the enclave (if either leg fails policy, NOTHING executes), then the gateway fires both venue calls in parallel server-side — minimal leg gap, works even when a venue geo-blocks your residential IP. Accepts canonical symbol (BTC) + qty in BASE ASSET per leg (contract venues converted, translation echoed per leg). Result status: executed (both venue receipts accepted) | partial (ONE leg live — naked position, repair via legs[].outcome) | unknown (a receipt was lost — that leg MAY be live: reconcile with get_account BEFORE any retry, never blind-retry) | failed (both rejected, safe to retry). Market orders only in v1. Side effect: real or testnet trades.cancel_orderCancel an outstanding order by its venue order_id. Signed inside the enclave just like place_order. Returns the cancellation receipt from the venue. Idempotent: cancelling a non-existent / already-filled order returns ok=false with a reason from the venue.
Priors tools 20
pay_urlFetch a URL that may charge per call with x402 (HTTP 402) and pay it in USDG on Robinhood Chain from the configured wallet. Moves real money: confirm the URL and the most you will pay with the user first. Pays only if the price is at or below max_price_usd (default 0.10 USD); a higher price is refused before anything is signed. If the wallet is short, it borrows the gap from the agent's Priors credit line only when max_borrow_usd is given and covers it (the loan must then be repaid with the repay tool before its due date). Returns what was paid and borrowed, and the response body.wallet_balanceShow how much USDG (the dollar the payments and loans use) and native ETH for gas a Robinhood Chain address holds. Defaults to the configured wallet; any address works without a key. Read-only.credit_statusShow a Priors agent's credit line on Robinhood Chain: who backs it, the line, what is drawn and available, its repayment record, score and open loans with due dates, and (for the configured wallet) its Autopay: on or off, the limit per loan, the budget left, the next loan it repays and any shortfall. agent_id defaults to the configured wallet's agent. Read-only.stock_assetsList the Robinhood stock tokens the Priors stock vault accepts as collateral on Robinhood Chain: each token's live Chainlink price, whether the vault lends against it right now (and if not, why: a sharp price move, a multiplier change such as a split, a paused or blocked token), and its loan-to-value. Read-only.stock_positionShow the stock tokens behind a Priors agent's stock line on Robinhood Chain: the token and amount the vault holds, what the vault values them at, the loan-to-value, what the line can draw now, whether new loans wait on a lending hold, and whether the line is closing. agent_id defaults to the configured wallet's agent. Read-only.stock_line_requestWhen the agent's Priors line is too small for a task, ask its owner for a line backed by a Robinhood stock token the owner holds: checks the token takes new lines now (price, holds, caps, the week's room, against the line the deposit opens) and the agent can take one, sizes the deposit to the line asked for at the agent's own loan-to-value (its record bonus included), with room for a 23% fall, states the cost in cents for a day and a week and what a default would keep, and returns a Go mode link that opens the owner's deposit sheet already filled in. Nothing is deposited or signed by this tool. Ask once per task, and only for what the task needs. agent_id defaults to the configured agent (PRIORS_AGENT_ID, or the one identity minted to the configured wallet); when a wallet is configured and its agent can't be told, the call fails and asks for agent_id. Without agent_id and with no wallet configured, the request is for a new agent.score_ofLook up any agent's Priors score (0 to 1000) and repayment record on Robinhood Chain: a public record built from on-chain repayments, plus the open Priors Score v2 and its trust rung when published. Useful before trusting or paying an agent. Read-only.borrowBorrow USDG from the agent's Priors credit line into the configured wallet. Moves real money and opens a loan with a fee that must be repaid (principal + fee) before the due date, or the agent's record is burnt and its backer pays. Always state the amount, term and fee to the user and get their go-ahead first; use dry_run: true to get the fee without borrowing.repayRepay the agent's own Priors loans in full (principal + fee) from the configured wallet's USDG; a loan of another agent, or one opened while someone else held the agent, is refused, and so is every loan when the wallet is neither the agent's owner nor its declared ERC-8004 wallet. Give either loan_id for one loan, or all: true to repay every open loan, earliest due first, as far as the balance covers. Moves real money: state the amounts (credit_status lists them) to the user and get their go-ahead first. The answer ends with share facts for each loan repaid (the amount, on time or late, the agent's record page), also as structured content with a suggested line; this server never posts anything.autopay_onTurn on Autopay for the configured agent: this wallet approves AutoRepay for a USDG budget (4 x the limit per loan) and enrolls, so each Priors loan is repaid from this wallet (then its savings, if chosen) in the 6 hours before it is due, by Priors' keeper or anyone, with no call per loan, while the wallet holds enough. It makes an on-time repayment more likely; it is not a promise. Call it again to change the limit or approve more budget when it runs low. Moves real allowances: state the limit and the budget to the user and get their go-ahead once. Needs ETH for gas.autopay_offTurn off Autopay for the configured agent: AutoRepay stops repaying its loans from this wallet at once. With clear_budget: true, also set this wallet's allowances to AutoRepay to 0. Loans must then be repaid with the repay tool before their due date.savingsShow how much USDG an address has saved in the savings vault (Steakhouse USDG on Morpho by default), what the vault can pay out to it right now, and the USDG in its wallet. Defaults to the configured wallet. Read-only.- +8 more on the listing page
Ready-to-paste client configs
Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.
Signer MCP
{
"mcpServers": {
"namixai-signer-mcp": {
"command": "npx",
"args": [
"-y",
"@usenami/signer-mcp"
],
"env": {
"SIGNER_GATEWAY_URL": "YOUR_SIGNER_GATEWAY_URL_HERE",
"SIGNER_API_TOKEN": "YOUR_SIGNER_API_TOKEN_HERE",
"SIGNER_FETCH_TIMEOUT_MS": "YOUR_SIGNER_FETCH_TIMEOUT_MS_HERE"
}
}
}
}
Priors
{
"mcpServers": {
"priors": {
"command": "npx",
"args": [
"-y",
"@priors/mcp"
],
"env": {
"PRIORS_KEY": "YOUR_PRIORS_KEY_HERE"
}
}
}
}
Frequently asked questions
Signer MCP is categorized under Finance & Fintech and uses a local stdio subprocess. Priors belongs to Finance & Fintech and uses a remote HTTP/SSE transport. Pick Signer MCP for finance & fintech work and Priors for finance & fintech.
Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.
Signer MCP is listed as a paid service. Auth: api key required. Priors is listed as free. Auth: no auth required. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.
Yes. MCP clients support multiple servers: add namixai-signer-mcp and priors as separate keys in the same mcpServers object, and your assistant will call tools from either one.
On AllMCPs, Signer MCP has a quality signal of 64/100 (Good) with 5 views, 0 installs and 2 GitHub stars. Priors has 85/100 (Excellent) with 8 views, 4 installs and 5 GitHub stars.