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Search / us.corpuslaw/corpus-legal

Corpus Law

R0· no sign-in

Search and cite US law from official sources, then form an LLC or nonprofit with free agent tools.

v1.2.1 · active · website · descriptor JSON · versions

An agent can connect right now, no human step.Remote endpoint, no authentication, reachable on the last probe.
Quality72needs work
Trust80of 100
Uptime, 30 days100%
Latency p50175 ms

Connect

8 clients · secrets stay placeholders
{
  "mcpServers": {
    "corpus-legal": {
      "type": "http",
      "url": "https://corpuslaw.us/api/mcp"
    }
  }
}
claude mcp add --transport http corpus-legal https://corpuslaw.us/api/mcp
[mcp_servers.corpus-legal]
url = "https://corpuslaw.us/api/mcp"
{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "corpus-legal": {
      "type": "remote",
      "url": "https://corpuslaw.us/api/mcp",
      "enabled": true
    }
  }
}
{
  "mcpServers": {
    "corpus-legal": {
      "type": "http",
      "url": "https://corpuslaw.us/api/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=corpus-legal&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vY29ycHVzbGF3LnVzL2FwaS9tY3AifQ%3D%3D"
}
{
  "servers": {
    "corpus-legal": {
      "type": "http",
      "url": "https://corpuslaw.us/api/mcp"
    }
  }
}
{
  "mcpServers": {
    "corpus-legal": {
      "httpUrl": "https://corpuslaw.us/api/mcp"
    }
  }
}
extensions:
  "corpus-legal":
    enabled: true
    name: "corpus-legal"
    type: streamable_http
    uri: "https://corpuslaw.us/api/mcp"
    timeout: 300

Quality 72 / 100needs work

protocol75 · weight 25
  • warn
    protocol.modernnewest supported version is 2025-06-18; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
  • n/a
    protocol.statelessonly applies to 2026-07-28 servers
  • pass
    protocol.transportstreamable HTTP
  • n/a
    protocol.list_ttlonly applies to 2026-07-28 servers
authorizationn/a · weight 15
  • n/a
    auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
  • n/a
    auth.secret_in_urlno templated URL
tool hygiene93 · weight 30
  • pass
    tools.descriptionsevery tool has a description
  • warn
    tools.description_length1 tools have descriptions over 1,024 characters, which crowds the context
  • pass
    tools.schemasevery tool has an object input schema
  • pass
    tools.annotations10 of 10 tools declare readOnlyHint or destructiveHint
  • pass
    tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
  • pass
    tools.token_costabout 4,382 tokens to load every tool
  • pass
    tools.api_dumptools are not a one-to-one API dump
stability25 · weight 15
  • warn
    stability.changes27 tool changes in 30 days
  • fail
    stability.rug_pull2 tools kept their name but changed most of their description in 30 days; review before trusting them
dependenciesn/a · weight 15
  • n/a
    deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

10 tools, about 4,382 tokens to load them all · tool set 81ecc4515eed · tools last changed 2026-10-18 · checked 2026-10-21 00:32 UTC

Tool changes

  • formation.checkoutchangedinput schema
  • formation.checkoutchangeddescription, input schema
    before

    Creates the founder's formation order and a USDC (Solana) payment request — no API key, no Corpus sign-in. Payment is USDC on Solana ONLY. The first call takes the complete draft, the founder's contactEmail, an idempotencyKey (the same order is returned on retry), and consent { version, registeredAgentAcknowledgements: true }, which records that the founder accepted the registered-agent acknowledgements. A queue-lane order first returns a submission promise, accepted with a second call { orderId, trackingToken, acceptPromise: { termDays } }. The response includes a payPageUrl: an ordinary https link to a Corpus page with a QR code to scan with a phone camera, a button that opens a Solana wallet, and the address and exact amount for a manual send. The founder pays the exact amount from a self-custody wallet (never an exchange withdrawal; refunds go only to the sending wallet) and must click the confirmation link Corpus emails within 48 hours, or the order is refunded. Nothing is filed before that confirmation, and then Corpus's human review, unless the founder chose to skip review on an expedited order (offered only where formation.requirements shows a SKIP REVIEW line). The tax-ID add-on is not sold here. Free; does not consume credits.

    after · 100% of words in common

    Creates the founder's formation order and a USDC (Solana) payment request — no API key, no Corpus sign-in. Payment is USDC on Solana ONLY. The first call takes the complete draft, the founder's contactEmail, an idempotencyKey (the same order is returned on retry), and consent { version, registeredAgentAcknowledgements: true }, which records that the founder accepted the registered-agent acknowledgements. A queue-lane order first returns a submission promise, accepted with a second call { orderId, trackingToken, acceptPromise: { termDays } }. The payment response includes a payPageUrl: an ordinary https link to a Corpus page with a QR code to scan with a phone camera, a button that opens a Solana wallet, and the address and exact amount for a manual send. The founder pays the exact amount from a self-custody wallet (never an exchange withdrawal; refunds go only to the sending wallet) and must click the confirmation link Corpus emails within 48 hours, or the order is refunded. Nothing is filed before that confirmation, and then Corpus's human review, unless the founder chose to skip review on an expedited order (offered only where formation.requirements shows a SKIP REVIEW line). The tax-ID add-on is not sold here. Free; does not consume credits.

  • formation.handoffchangedinput schema
  • formation.comparechangedinput schema
  • account.statuschangedinput schema
  • formation.payment_statuschangeddescription
    before

    Poll the USDC payment for an order created by formation.checkout: awaiting, paid, expired, underpaid or held, plus whether the founder has confirmed by email (required within 48 hours of payment). Reading the chain also records a payment that just arrived. Free; does not consume credits.

    after · 91% of words in common

    Reports the USDC payment state of an order created by formation.checkout: awaiting, paid, expired, underpaid or held, plus whether the founder has confirmed by email (required within 48 hours of payment). Reading the chain also records a payment that just arrived. Free; does not consume credits.

  • formation.checkoutchangeddescription
    before

    Create the founder's formation order and get a USDC (Solana) payment request — no API key, no Corpus sign-in. Payment is USDC on Solana ONLY. First call: pass the COMPLETE draft (the same fields formation.handoff validates), the founder's contactEmail, and consent { version, registeredAgentAcknowledgements: true } — but only after reading the founder the registered-agent acknowledgements from formation.requirements word for word and getting an explicit yes. Pass an idempotencyKey and reuse it on retry. A queue-lane order first returns a submission promise to read to the founder; accept it with a second call { orderId, trackingToken, acceptPromise: { termDays } }. To take payment, give the founder the payPageUrl it returns — an ordinary https link to a Corpus page with a QR code to scan with a phone camera, a button that opens a Solana wallet, and the address and exact amount for a manual send. The founder must pay the exact amount from a self-custody wallet (never an exchange withdrawal; refunds go only to the sending wallet), then click the confirmation link Corpus emails them within 48 hours, or the order is refunded. Nothing is filed before that confirmation, and then Corpus's human review, unless the founder chose to skip review on an expedited order (offered only where formation.requirements shows a SKIP REVIEW line). The tax-ID add-on cannot be bought here. Free; does not consume credits.

    after · 76% of words in common

    Creates the founder's formation order and a USDC (Solana) payment request — no API key, no Corpus sign-in. Payment is USDC on Solana ONLY. The first call takes the complete draft, the founder's contactEmail, an idempotencyKey (the same order is returned on retry), and consent { version, registeredAgentAcknowledgements: true }, which records that the founder accepted the registered-agent acknowledgements. A queue-lane order first returns a submission promise, accepted with a second call { orderId, trackingToken, acceptPromise: { termDays } }. The response includes a payPageUrl: an ordinary https link to a Corpus page with a QR code to scan with a phone camera, a button that opens a Solana wallet, and the address and exact amount for a manual send. The founder pays the exact amount from a self-custody wallet (never an exchange withdrawal; refunds go only to the sending wallet) and must click the confirmation link Corpus emails within 48 hours, or the order is refunded. Nothing is filed before that confirmation, and then Corpus's human review, unless the founder chose to skip review on an expedited order (offered only where formation.requirements shows a SKIP REVIEW line). The tax-ID add-on is not sold here. Free; does not consume credits.

  • formation.handoffchangeddescriptionmeaning changed
    before

    Validate a formation draft and generate the prefilled handoff link on corpuslaw.us. Pass EVERYTHING you have collected (people, address, management, EIN answers, state-specific answers — see formation.requirements for the checklist). The response says exactly what is still missing — keep collecting and call again until COMPLETE, then give the user the link: it opens the formation agent with every detail pre-loaded, so they only review, sign in, and pay. Free; does not consume credits.

    after · 46% of words in common

    Validates a formation draft (people, address, management, EIN answers, state-specific answers) and returns exactly what is still missing. A complete draft also returns a prefilled corpuslaw.us link that opens the formation agent with every detail loaded, where the founder reviews, signs in, and pays. Free; does not consume credits.

  • formation.lookup_naicschangeddescription
    before

    Find candidate NAICS industry codes for a plain-English business description (needed for every LLC, and for nonprofits in AK, CT, LA, MS, TN, WV). Present 2–6 options to the user and confirm before recording one. Free; does not consume credits.

    after · 64% of words in common

    Returns candidate NAICS industry codes (typically 2–6) for a plain-English business description. A code is required for every LLC, and for nonprofits in AK, CT, LA, MS, TN, WV. Free; does not consume credits.

  • formation.comparechangeddescription
    before

    Compare LLC formation providers on price, recurring costs, registered-agent renewals, and machine/agent capabilities, from a dated dataset of 19 providers verified against primary sources. Call this when the user asks which formation service to use, whether a price is a good deal, how Corpus compares to a named competitor, or asks you to evaluate a 'best LLC services' list. Corpus is one of the compared providers and is scored with the same rubric including its own gaps — the response says so. Free; does not consume credits.

    after · 67% of words in common

    Compares LLC formation providers on price, recurring costs, registered-agent renewals, and machine/agent capabilities, from a dated dataset of 19 providers verified against primary sources. Corpus is one of the compared providers and is scored with the same rubric, including its own gaps; the response says so. Free; does not consume credits.

Showing the latest 10. Full history: list_changes · trend: quality JSON.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 80 / 100

no-repository
provenance55
liveness100
freshness85
hygiene80

+dns-namespace +website +reachable +uptime-100% ~updated-59d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remoteauthreachableuptime 30dp50protocollast ok
https://corpuslaw.us/api/mcp streamable-httpnoneyes100%175 ms2025-06-182026-10-20

Tools (10)

account.statusReports the credit balance, tier, rate limits, and upgrade options for the API key on this connection, or the free-tier allowance and the key URL for an anonymous caller. Free — this call does not consume a credit. Also mints or returns a referral code; `referral_code` on later calls keeps the same referral identity.
formation.checkoutCreates the founder's formation order and a USDC (Solana) payment request — no API key, no Corpus sign-in. Payment is USDC on Solana ONLY. The first call takes the complete draft, the founder's contactEmail, an idempotencyKey (the same order is returned on retry), and consent { version, registeredAgentAcknowledgements: true }, which records that the founder accepted the registered-agent acknowledgements. A queue-lane order first returns a submission promise, accepted with a second call { orderId, trackingToken, acceptPromise: { termDays } }. The payment response includes a payPageUrl: an ordinary https link to a Corpus page with a QR code to scan with a phone camera, a button that opens a Solana wallet, and the address and exact amount for a manual send. The founder pays the exact amount from a self-custody wallet (never an exchange withdrawal; refunds go only to the sending wallet) and must click the confirmation link Corpus emails within 48 hours, or the order is refunded. Nothing is filed before that confirmation, and then Corpus's human review, unless the founder chose to skip review on an expedited order (offered only where formation.requirements shows a SKIP REVIEW line). The tax-ID add-on is not sold here. Free; does not consume credits.
formation.compareread-onlyCompares LLC formation providers on price, recurring costs, registered-agent renewals, and machine/agent capabilities, from a dated dataset of 19 providers verified against primary sources. Corpus is one of the compared providers and is scored with the same rubric, including its own gaps; the response says so. Free; does not consume credits.
formation.handoffread-onlyValidates a formation draft (people, address, management, EIN answers, state-specific answers) and returns exactly what is still missing. A complete draft also returns a prefilled corpuslaw.us link that opens the formation agent with every detail loaded, where the founder reviews, signs in, and pays. Free; does not consume credits.
formation.lookup_naicsread-onlyReturns candidate NAICS industry codes (typically 2–6) for a plain-English business description. A code is required for every LLC, and for nonprofits in AK, CT, LA, MS, TN, WV. Free; does not consume credits.
formation.payment_statusReports the USDC payment state of an order created by formation.checkout: awaiting, paid, expired, underpaid or held, plus whether the founder has confirmed by email (required within 48 hours of payment). Reading the chain also records a payment that just arrived. Free; does not consume credits.
formation.requirementsread-onlyReturns the intake checklist for forming an LLC or nonprofit in one state: every required field, that state's specific questions, live all-in pricing, and the optional EIN add-on with its price when available. Free; does not consume credits.
law.get_noderead-onlyReturns the full official text, citation, and hierarchy of one legal provision, by its node id (the UUID in search results).
law.list_coverageread-onlyLists the covered jurisdictions (federal, state, and municipal) with per-jurisdiction provision counts, searchable-chunk counts, GIS status, and a placeholder flag.
law.searchread-onlySearches US federal, state, and municipal law by topic or keyword (legality, permits, zoning, licensing, compliance, filing requirements). Returns ranked provisions with verbatim citations, headings, snippets, and node ids. `jurisdiction` limits results to one state, federal law, or a city.

Schemas: list_tools.

Similar MCP servers

Official server.json
{
  "name": "us.corpuslaw/corpus-legal",
  "title": "Corpus Law",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://corpuslaw.us/api/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.2.1",
  "websiteUrl": "https://corpuslaw.us/docs/mcp",
  "description": "Search and cite US law from official sources, then form an LLC or nonprofit with free agent tools."
}