io.usefulapi/anvil
REMOTE · ANVIL.USEFULAPI.IO · SCANNED AUG 3
Hosted MCP server for Anvil — fill & generate PDFs and run Etch e-signature packets for AI agents.
Available components
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 →
Endpoint Security46
- 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 connect, but we couldn't read the tool list to see what that exposes. View diagnostics → Unverified
- HTTPS not yet verified: we couldn't determine whether a plaintext access path exists. View diagnostics → Unverified
- 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 Usability0
- Schema not yet verified: we couldn't read the endpoint's schema.Unverified
Stability & Change Management0
- Stability not yet verified: not enough scan history yet (needs a 30-day window).Unverified
Tool Coverage0
- Tool coverage not yet verified: we couldn't read the endpoint's tools.Unverified
Capabilities0
- Capabilities not yet verified: we couldn't read the endpoint's capabilities.Unverified
Unverified: 4 categories
Categories scored 0 because we could not verify them: authentication we do not have, an unreachable endpoint, or not enough scan history. We only credit what we can confirm.
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.
remote · anvil.usefulapi.io
claude mcp add --transport http io-usefulapi-anvil https://anvil.usefulapi.io/mcp
[mcp_servers.io-usefulapi-anvil] url = "https://anvil.usefulapi.io/mcp"
{
"$schema": "https://opencode.ai/config.json",
"mcp": {
"io-usefulapi-anvil": {
"type": "remote",
"url": "https://anvil.usefulapi.io/mcp",
"enabled": true
}
}
} openclaw mcp add io-usefulapi-anvil --url https://anvil.usefulapi.io/mcp --transport streamable-http
mcp_servers:
io-usefulapi-anvil:
url: "https://anvil.usefulapi.io/mcp" {
"mcpServers": {
"io-usefulapi-anvil": {
"type": "http",
"url": "https://anvil.usefulapi.io/mcp"
}
}
} The mcpServers block is a cross-client convention. Remote transports vary, so check your client's docs.
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 −42
- Endpoint reachability: reachable → not serving MCP ▼ security
- Stability: 0.20 → unverified ▼ security
- Authorization: fail → unverified ▼ security
- Tool coverage: 100 → unverified ▼ functional
- Capabilities: fail → unverified ▼ functional
- 2 Aug 26 +42
- Authorization: unverified → fail ▼ security
- MCP protocol: unverified → fail ▼ functional
- Endpoint reachability: not serving MCP → reachable ▲ functional
- Tool coverage: unverified → 100 ▲ functional
- Stability: unverified → 0.20 ▲ functional
- 1 Aug 26 −44
- Endpoint reachability: reachable → not serving MCP ▼ security
- Stability: 0.13 → unverified ▼ security
- Authorization: pass → unverified ▼ security
- Capabilities: fail → unverified ▼ functional
- Tool coverage: 100 → unverified ▼ functional
- 31 Jul 26 +3
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 30 Jul 26 −2
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → functional
- 29 Jul 26 +1
No change was recorded against any check on this day. Stability & Change Management went from 3 to 7. That category is still filling its 30-day observation window: 1 days of observed history at the previous scan, 2 at this one. The score rises as the window fills, whether or not the server changes.
- 28 Jul 26 +1
- Stability: unverified → 0.03 ▲ functional
- 27 Jul 26 +57
- We updated how we score, so this day's move reflects our rubric, not a change to the server See what changed → 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 3 Aug 2026 · Probed https://anvil.usefulapi.io/mcp
TLS valid
Negotiated TLS 1.3 with TLS_AES_128_GCM_SHA256 .
| Subject | Issuer | Valid from | Valid until | Key | Signature | Serial |
|---|---|---|---|---|---|---|
| CN=usefulapi.io | CN=WE1,O=Google Trust Services,C=US | 17 Jul 2026 | 15 Oct 2026 | ECDSA 256 | ECDSA-SHA256 | 1a4d70e76917d0db0ef96420ca3cff44 |
| SANs: usefulapi.io, anvil.usefulapi.io, *.anvil.usefulapi.io | ||||||
| CN=WE1,O=Google Trust Services,C=US (CA) | CN=GTS Root R4,O=Google Trust Services LLC,C=US | 13 Dec 2023 | 20 Feb 2029 | ECDSA 256 | ECDSA-SHA384 | 7ff31977972c224a76155d13b6d685e3 |
| CN=GTS Root R4,O=Google Trust Services LLC,C=US (CA) | CN=GlobalSign Root CA,OU=Root CA,O=GlobalSign nv-sa,C=BE | 15 Nov 2023 | 28 Jan 2028 | ECDSA 384 | SHA256-RSA | 7fe530bf331343bedd821610493d8a1b |
DNSSEC insecure
Validation of anvil.usefulapi.io. — Not signed
| Zone | DS | Keys | Algorithms | Outcome |
|---|---|---|---|---|
| . | trust_anchor | 20326, 38696 | 8, 8 | Verified |
| io. | present | 57355 | 8 | Verified |
| usefulapi.io. | 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 |
Transports 2 probes
| Transport | URL | Outcome | Status | Location |
|---|---|---|---|---|
| streamable-http | https://anvil.usefulapi.io/mcp | Verified | 200 | |
| http (plaintext) | http://anvil.usefulapi.io/mcp | Inconclusive | 401 |
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.
anvil_create_etch_packet Create Etch e-signature packet ~255
Create an Etch e-signature packet (documents + signers). GraphQL mutation: createEtchPacket. IMPORTANT: isDraft defaults to true (a safe draft that sends nothing). Setting isDraft=false with real signers SENDS signature-request emails to those signers. Use isTest=true while developing.
| Name | Type | Req | Description |
|---|---|---|---|
| data | object | — | Optional payload data used to pre-fill the packet's documents. |
| files | array | — | Array of file/document objects (casts or uploads) to include. Passed straight through to Anvil. |
| isDraft | boolean | — | Default true. When true, creates a draft and sends nothing. Set false to activate and email signers. |
| isTest | boolean | — | Set true to create a test packet (no legal weight, no charge). |
| name | string | yes | Human-readable name for the packet. |
| signatureEmailBody | string | — | Optional body text for the signature-request email. |
| signatureEmailSubject | string | — | Optional subject line for the signature-request email. |
| signers | array | — | Array of signer objects, e.g. [{ id, name, email, signerType, routingOrder, fields }]. Passed straight through to Anvil. |
No output schema declared.
No examples provided.
anvil_current_user Current Anvil user ~56
Get the authenticated Anvil user (from the API key) and the organizations they belong to (eid, name, slug). Good first call to discover org slugs/eids for other tools. GraphQL query: currentUser.
Input schema present but exposes no named parameters.
No output schema declared.
No examples provided.
anvil_fill_pdf Fill a PDF template ~182
Fill an Anvil PDF template (cast) with data and return the finished PDF as base64. REST: POST /fill/{castEid}.pdf. Returns { filename, byteLength, pdfBase64 }. The `data` object's keys are the template's field aliases.
| Name | Type | Req | Description |
|---|---|---|---|
| cast_eid | string | yes | The cast (PDF template) eid to fill (from anvil_get_cast). |
| data | object | yes | Object mapping the template's field aliases to values, e.g. { "name": "Sam", "date": "2026-07-16" }. |
| fontSize | number | — | Optional default font size for filled text. |
| textColor | string | — | Optional default text color as a hex string, e.g. #333333. |
| title | string | — | Optional title embedded in the generated PDF metadata. |
No output schema declared.
No examples provided.
anvil_generate_etch_sign_url Generate Etch signing URL ~98
Generate a one-time embedded signing URL for a specific signer in an Etch packet (for iframe/redirect signing flows). GraphQL mutation: generateEtchSignURL. Returns { url }.
| Name | Type | Req | Description |
|---|---|---|---|
| client_user_id | string | yes | Your app's stable id for the signing user (ties the session to your user). |
| signer_eid | string | yes | The signer eid (from the packet's documentGroup.signers). |
No output schema declared.
No examples provided.
anvil_generate_pdf Generate a PDF from HTML or Markdown ~147
Generate a brand-new PDF from HTML or Markdown and return it as base64. REST: POST /generate-pdf. For type=html, pass data = { html, css? }. For type=markdown, pass data = [ { label, content }, ... ]. Returns { filename, byteLength, pdfBase64 }.
| Name | Type | Req | Description |
|---|---|---|---|
| data | — | yes | For html: { html: "<h1>Hi</h1>", css?: "..." }. For markdown: [ { label: "Section", content: "# Title\n..." }, ... ]. |
| title | string | — | Optional title embedded in the generated PDF metadata. |
| type | string | — | Source format. Default html. |
No output schema declared.
No examples provided.
anvil_get_cast Get cast (PDF template) ~71
Fetch a cast — an Anvil PDF template — by its eid: title, version number, and whether it is a template. Use the returned eid as the cast_eid for anvil_fill_pdf. GraphQL query: cast.
| Name | Type | Req | Description |
|---|---|---|---|
| eid | string | yes | The cast (PDF template) eid. |
No output schema declared.
No examples provided.
anvil_get_etch_packet Get Etch e-signature packet ~86
Fetch an Etch e-signature packet by eid: its status, details URL, document group, and every signer (eid, aliasId, name, email, status, routing order). Use this to check signature progress. GraphQL query: etchPacket.
| Name | Type | Req | Description |
|---|---|---|---|
| eid | string | yes | The Etch packet eid (returned by anvil_create_etch_packet). |
No output schema declared.
No examples provided.
anvil_get_organization Get organization ~84
Fetch an Anvil organization and its PDF templates (casts) and workflows (welds). Provide either its slug or its eid (at least one is required). GraphQL query: organization.
| Name | Type | Req | Description |
|---|---|---|---|
| eid | string | — | Organization eid. Provide this OR slug. |
| slug | string | — | Organization slug (from anvil_current_user). Provide this OR eid. |
No output schema declared.
No examples provided.
anvil_get_weld Get weld (workflow) ~58
Fetch a weld — an Anvil workflow — by eid, including its forges (the individual form steps: eid, name, slug). GraphQL query: weld.
| Name | Type | Req | Description |
|---|---|---|---|
| eid | string | yes | The weld (workflow) eid. |
No output schema declared.
No examples provided.
anvil_get_weld_data Get weld data (workflow submission) ~63
Fetch a weldData record — a single submission to a weld (workflow) — by eid: completion state, test flag, and creation time. GraphQL query: weldData.
| Name | Type | Req | Description |
|---|---|---|---|
| eid | string | yes | The weldData (workflow submission) eid. |
No output schema declared.
No examples provided.