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Engineering Data connector
Endpoint https://pipingtoolset.com/mcp · read-only · Content last reviewed · page regenerated 2026-10-28 at build.
The Engineering Data connector is a read-only MCP server. Your assistant asks it for one value from one table row and gets the value back with its citation: standard, edition, table, row and column, plus the tabulated entries it came from. Where this server does not return a value, it returns a pointer instead: the table, row key, column and edition to read from your copy.
Connect
- Claude (web, desktop, mobile): Settings → Connectors → Add custom connector, URL
https://pipingtoolset.com/mcp. - Claude Code:
claude mcp add --transport http pipingtoolset-data https://pipingtoolset.com/mcp - ChatGPT: add
https://pipingtoolset.com/mcpas a connector in developer mode.
Free datasets, pointers, SKEY maps, AISC shapes and most worked examples work without signing in. Values from paid datasets need a signed-in paid account: the first time your assistant needs one, it opens the Piping Toolset sign-in page, where you sign in and confirm the data-settings requirement below.
Tools
All ten tools are read-only: they change nothing and call nothing outside this server.
| Tool | What it returns |
|---|---|
find_dataset | Search the engineering code-table datasets by keyword (standard, table, quantity, material). Returns up to 10 matches, each with its id, title, standard, edition and table, whether lookups return a value or a pointer (table, row and column only), and the tier at which values are returned. |
describe_dataset | Describe one dataset: the key fields a lookup needs, the value columns with units and which need a temperature, the citation (standard, edition, table), whether lookups return a value or a pointer, the tier at which values are returned, and the daily lookup limits. Returns structure only, no table values. |
lookup_value | Return one value from one row and one column of a code-table dataset, with its citation (standard, edition, table, row, column), unit and the tabulated entries used. Temperature columns take T in °F; allowable-stress and flange-rating columns interpolate linearly between the two bracketing tabulated temperatures and never extrapolate. Datasets in pointer mode return the citation with value null. The key must identify exactly one row; use list_keys for identifiers. |
list_keys | List the key identifiers of a dataset's rows (for example spec, grade, class, size, and the row position `line`) so lookup_value can address exactly one row. Returns identifiers only, never table values, at most 50 per call; `prefix` filters on the first key field. For pointer datasets it returns the key schema without rows. |
get_pointer | For a quantity whose value this server does not return (for example PVP2011-57100 nozzle allowables, ASCE 7-22 SDS, Ip, CAR and Rpo, AISC Fy/Fu, ACI anchor product values, API 617/611/612 and NEMA SM 23 coefficients, API 650 Annex P coefficients, and API nozzle tables), return where to read it: standard, edition, table or figure, the row key and columns, and the inputs needed. Never returns a value. |
get_skey_map | Return the Isogen-style SKEY vocabulary Piping Toolset uses (component prefixes, end-condition suffixes, fitting and support keys) with scope 'isogen', or the PCF record set, substitutions and default SKEYs that import cleanly into CAESAR II with scope 'caesar-safe'. `component` narrows the result to one group, e.g. 'valve_prefix' or 'safe_substitutions'. |
get_fixture_example | Return one worked example case for a Piping Toolset plugin skill: the inputs, the expected outputs and the pass/fail status from the hand-checked calculation fixtures, with case names removed. `case` selects among the skill's cases (0-based; the result gives the count). |
get_aisc_shape | Return the dimensions and section properties of one AISC shape by designation (e.g. W8X31, HSS6X6X3/8, PIPE4STD, L4X4X1/2): weight, area, depth, flange and web dimensions, I, S, Z, r, J and Cw as applicable. Source: AISC Shapes Database v16.0; L, HSS and Pipe computed from nominal geometry. |
get_pipe_dimensions | Return the outside diameter and nominal wall thickness (in) for a nominal pipe size per ASME B36.10M / B36.19M: one schedule with its wall and inside diameter when `schedule` is given (e.g. 40, STD, XS, 80, 10S), otherwise the walls of every schedule listed at that size. |
verify_connector | Report whether the caller is signed in, the caller's tier, how many datasets return values at that tier, and the remaining daily lookups when the server tracks them. Returns no email, name or account id. |
Datasets
Each row is one table the server knows. "Value + citation" returns one value per call from one row and one column;
"Location only" returns the table, row key and column to read from your copy. Key fields are what a lookup must name
(use list_keys for the identifiers). Spring and expansion-joint manufacturer catalogs are not served.
| Dataset | Standard | Edition | Table | Tier | Returns | Key |
|---|---|---|---|---|---|---|
AISC shape dimensions & properties (v16.0 + computed L/HSS/Pipe)aisc.shapes-v16 | AISC Shapes Database | v16.0 | Shapes Database v16.0 (L, HSS and Pipe computed from nominal geometry) | Free | Value + citation | label optional: line |
API 521 overpressure-scenario routing index (names + sections only)api521-scenario-index | API 521 | 7th Ed. | Table 1 / §4.4 (scenario titles and section numbers only) | Pro | Value + citation | item optional: line |
API 560 (6th Ed.) Tables 7–10 — fired-heater terminal allowable loads & movementsapi560-terminal-loads | API 560 | 6th Ed. (2026) | Tables 7–10 | Ultimate | Location only | table, sizeNps optional: component, orientation, line |
API 610 (13th Ed.) Tables 5a/5b — pump nozzle allowable loadsapi610-nozzle-loads | API 610 | 13th Ed. (2026) | Tables 5a/5b | Ultimate | Location only | table, nozzle, nps optional: line |
API 660 (9th Ed.) Table 2 — nozzle allowable forces & momentsapi660-nozzle-loads | API 660 | 9th Ed. (R2025) | Table 2 | Ultimate | Location only | sizeNps, flangeClass optional: line |
API 661 (7th Ed.) Table 4 — air-cooler nozzle allowable loadsapi661-nozzle-loads | API 661 | 7th Ed. (R2024) | Table 4 and §7.1.10 | Ultimate | Location only | sizeNps optional: line |
ASME B16.20-2017 spiral-wound gasket dimensions (Table SW-2.1-1)b1620-2017-spiral-wound | ASME B16.20 | 2017 | Table SW-2.1-1 | Pro Plus | Value + citation | flangeClass, nps optional: line |
ASME B16.5-2017 flange facing/drilling + hub dimensionsb165-2017-dimensions | ASME B16.5 | 2017 | Tables II-7…II-22 (facing/drilling by class) + Table 9 (weld-neck hub X/Y) | Pro Plus | Value + citation | flangeClass, nps optional: line |
ASME B16.5-2017 flange P-T ratings (Mandatory Appendix II)b165-2017-ratings | ASME B16.5 | 2017 | Tables II-2-1.1 / II-2-2.1 / II-2-2.2 / II-2-2.3 | Pro Plus | Value + citation | group, class optional: T, line |
ASME B16.5-2025 flange P-T ratings (Tables 2-1.1C/2-2.1C/2-2.2C/2-2.3C)b165-2025-ratings | ASME B16.5 | 2025 | Tables 2-1.1C, 2-2.1C, 2-2.2C, 2-2.3C | Pro Plus | Value + citation | group, class optional: T, line |
ASME B31.1-2024 App. A Tables A-1/A-2/A-3 — Maximum Allowable Stress SE (first slice)b311-allowable-stresses-2024 | ASME B31.1 | 2024 | App. A Tables A-1/A-2/A-3 | Pro | Value + citation | spec optional: T, grade, typeClass, sizeOrDia, productForm, table, notes, line |
ASME B31.1-2024 Table II-2.2.1-1 — Values of a and bb311-appii-steam-constants | ASME B31.1 | 2024 | Table II-2.2.1-1 | Ultimate | Value + citation | condition optional: line |
ASME B31.1-2024 Table A-10 — Bolts, Nuts, and Studs (first slice)b311-bolting-stresses-2024 | ASME B31.1 | 2024 | Table A-10 | Pro | Value + citation | spec optional: T, grade, notes, sizeOrDia, line |
ASME B31.1-2024 Table 102.4.3-1 longitudinal weld joint efficiency factors (E)b311-e-factors | ASME B31.1 | 2024 | Table 102.4.3-1 | Pro | Value + citation | no optional: seamType, examination, line |
ASME B31.1-2024 Table 121.5-1 suggested steel pipe support spacingb311-support-spans | ASME B31.1 | 2024 | Table 121.5-1 | Pro | Value + citation | nps optional: line |
ASME B31.1-2024 Table 104.1.2-1 coefficient yb311-y-coefficients | ASME B31.1 | 2024 | Table 104.1.2-1 | Pro | Value + citation | material optional: T, line |
ASME B31.3-2024 Table A-1C — Basic Allowable Stresses (first slice)b313-allowable-stresses-2024 | ASME B31.3 | 2024 | Table A-1C | Pro | Value + citation | spec optional: T, grade, classCond, size, productForm, lineNo, uns, line |
ASME B31.3-2024 Table A-4C — Design Stress Values for Bolting (first slice)b313-bolting-stresses-2024 | ASME B31.3 | 2024 | Table A-4C | Pro | Value + citation | spec optional: T, grade, size, lineNo, line |
ASME B31.3-2024 Table 302.3.3-1 increased casting quality factors (Ec)b313-ec-factors | ASME B31.3 | 2024 | Table 302.3.3-1 | Pro | Value + citation | examination optional: line |
ASME B31.3-2024 Table 302.3.4-1 longitudinal weld joint quality factors (Ej)b313-ej-factors | ASME B31.3 | 2024 | Table 302.3.4-1 | Pro | Value + citation | no optional: seamType, examination, line |
ASME B31.3-2024 Table 302.3.5-1 weld joint strength reduction factors (W)b313-w-factors | ASME B31.3 | 2024 | Table 302.3.5-1 | Pro | Value + citation | steelGroup optional: T, line |
ASME B31.3-2024 Table 304.1.1-1 coefficient Y (t < D/6)b313-y-coefficients | ASME B31.3 | 2024 | Table 304.1.1-1 | Pro | Value + citation | material optional: T, line |
ASME B31.9-2025 Table I-1 — Allowable Stressesb319-allowable-stresses | ASME B31.9 | 2025 | Table I-1 | Pro | Value + citation | spec optional: T, grade, material, classOrTemper, sizeOrThickness, notes, line |
ASME B31.9-2025 Table 921.2.2-1 threaded ASTM A36 rod capacitiesb319-rod-capacities | ASME B31.9 | 2025 | Table 921.2.2-1 | Pro | Value + citation | rodDiameterIn optional: line |
B31J-2023 Table 1-1 component catalogb31j-components | ASME B31J | 2023 | Table 1-1 | Pro | Value + citation | sketch optional: line |
Pipe OD and nominal wall by NPS and scheduleb3610-pipe-dimensions | ASME B36.10M / B36.19M | B36.10-2022 / B36.19-2022 | Pipe dimensions (OD and nominal wall by schedule) | Pro | Value + citation | nps, schedule optional: line |
Sulfur range for autogenously welded austenitic stainless weld endsbpe.autogenous-weld-sulfur | ASME BPE | 2026 | MM-5.2.1.1(a) | Pro | Value + citation | — optional: line |
BN2 heat-selection limit for low-ferrite austenitic stainless steelbpe.bn2-ferrite-limit | ASME BPE | 2026 | Nonmandatory Appendix G, G-3(d) footnote 3 | Pro | Value + citation | — optional: line |
CIP flow velocity and flow rates for process linesbpe.cip-flow-rates | ASME BPE | 2026 | SD-6.3.5.2.1 / Table SD-6.3.5.2.1-1 | Pro | Value + citation | nominal optional: line |
Dead-leg L/d limitsbpe.dead-leg-limits | ASME BPE | 2026 | SD-3.1.2.2 | Pro | Value + citation | serviceClass optional: line |
Electropolishing procedure-qualification acceptance criteria for test couponsbpe.ep-qualification-criteria | ASME BPE | 2026 | Table H-4.3-1 | Pro | Value + citation | family optional: line |
ASME BPE-2026 fitting dimensions (DT-4.1)bpe.fitting-dimensions | ASME BPE | 2026 | Part DT-4.1 fitting-dimension tables | Pro | Value + citation | type, size optional: line |
Slope designations for drainable lines (GSD0–GSD3)bpe.gsd-slopes | ASME BPE | 2026 | Table SD-2.4.3.1-1 | Pro | Value + citation | designation optional: line |
Minimum surface requirements for passivation process-qualification samplesbpe.passivation-criteria | ASME BPE | 2026 | Table E-3.2-1 | Pro | Value + citation | method optional: line |
Thermoplastic coefficients of thermal expansion (typical, room temperature)bpe.polymer-cte | ASME BPE | 2026 | PM-4.2.3 | Pro | Value + citation | material optional: line |
Spray-device flow-rate guidelines by device type and vessel orientationbpe.spray-coverage-rates | ASME BPE | 2026 | SD-3.9.2.1–SD-3.9.2.3 | Pro | Value + citation | deviceType, orientation optional: line |
ASME BPVC Section IX-2025 Table QW-442 — A-Numbersqw442-a-numbers | ASME BPVC Section IX | 2025 | Table QW-442 | Pro Plus | Value + citation | aNo optional: line |
ASME BPVC VIII-1 Figure UCS-66 — material curve assignment notesucs66-curve-assignments | ASME BPVC Section VIII Division 1 | 2025 | Figure UCS-66 curve assignment notes | Pro Plus | Value + citation | curve optional: noteRefs, line |
ASME BPVC VIII-1 Table UCS-66 — impact test exemption MDMT by thickness and curveucs66-tabular | ASME BPVC Section VIII Division 1 | 2025 | Table UCS-66 | Pro Plus | Value + citation | thicknessIn optional: line |
ASME BPVC VIII-2 Table 4.16.1 — gasket factors (m, y)gasket-factors-4161 | ASME BPVC Section VIII Division 2 | 2025 | Table 4.16.1 | Pro Plus | Value + citation | family, material optional: line |
ASME BPVC VIII-2 Table 4.19.3 — coefficient Cp (U-shaped bellows)viii2-4193-cp | ASME BPVC Section VIII Division 2 | 2025 | Table 4.19.3 | Pro Plus | Value + citation | C2 optional: line |
ASME BPVC VIII-2 Table 4.19.4 — coefficient Cf (U-shaped bellows)viii2-4194-cf | ASME BPVC Section VIII Division 2 | 2025 | Table 4.19.4 | Pro Plus | Value + citation | C2 optional: line |
ASME BPVC VIII-2 Table 4.19.5 — coefficient Cd (U-shaped bellows)viii2-4195-cd | ASME BPVC Section VIII Division 2 | 2025 | Table 4.19.5 | Pro Plus | Value + citation | C2 optional: line |
ASME BPVC VIII-2 Tables 4.19.6 / 4.19.8 / 4.19.11 — allowable cycles Nalw (USC)viii2-4196-fatigue | ASME BPVC Section VIII Division 2 | 2025 | Tables 4.19.6, 4.19.8, 4.19.11 | Pro Plus | Value + citation | form optional: line |
ASME NM.1-2022 Table 2-3.2.2-2 — Design Factor (DF)nm1-design-factors | ASME NM.1 | 2022 | Table 2-3.2.2-2 | Pro | Value + citation | fitting optional: line |
ASME NM.1-2022 Table 2-3.2.2-1 — Geometric Shape Rating (GSR) for HDPE fittingsnm1-gsr | ASME NM.1 | 2022 | Table 2-3.2.2-1 | Pro | Value + citation | fitting optional: line |
ASME NM.1-2022 Appendix IV Table IV-1 — HDPE SIF/flexibility-factor catalognm1-hdpe-sif | ASME NM.1 | 2022 | Appendix IV Table IV-1 | Pro | Value + citation | component optional: line |
ASME NM.1-2022 Table 2-3.2.2-3 — Pressure Rating (PR) at 23°C (73°F)nm1-molded-pr | ASME NM.1 | 2022 | Table 2-3.2.2-3 | Pro | Value + citation | fitting optional: line |
Pointers
get_pointer names where these values live; it never returns them.
| Standard | Edition | Table / figure | Quantity | Row key |
|---|---|---|---|---|
| ASME PVP2011-57100 | 2011 (PVP Conference paper) | Table 1A (Class 150 nozzles, vessel thickness T ≥ 0.25 in) | allowable nozzle loads for a pressure vessel nozzle with no vendor allowable | NPS |
| ASME PVP2011-57100 | 2011 (PVP Conference paper) | Table 1B (Class 150 nozzles, vessel thickness T ≥ 0.375 in) | allowable nozzle loads for a pressure vessel nozzle with no vendor allowable | NPS |
| ASME PVP2011-57100 | 2011 (PVP Conference paper) | Table 2 (Class 300 nozzles, vessel thickness T ≥ 0.375 in) | allowable nozzle loads for a pressure vessel nozzle with no vendor allowable | NPS |
| ASCE/SEI 7-22 | 2022 | Chapter 11, §11.4 (design spectral response acceleration parameters) | SDS, design spectral response acceleration at short periods, for a site | latitude, longitude, siteClass, riskCategory |
| ASCE/SEI 7-22 | 2022 | Chapter 13, §13.1.3 (component importance factor) | Ip, component importance factor for a nonstructural component (piping) | component |
| ASCE/SEI 7-22 | 2022 | Chapter 13, Table 13.6-1 (mechanical and electrical components) | CAR and Rpo for piping (ASCE 7-16 used ap and Rp for the same role) | component, supportLocation |
| AISC 360-22 | 2022 | §A3.1 (structural steel materials); Fy and Fu from the ASTM material specification (summarized in AISC Steel Construction Manual Table 2-4) | Fy and Fu for a steel specification and grade | specification, grade |
| ACI 318-19 | 2019 | Chapter 17 (anchoring to concrete); post-installed anchor values from the product's ICC-ES evaluation report (ESR), qualified to ACI 355.2 / 355.4 | post-installed anchor product values: bond stress, kc, cac, minimum spacing and edge distance | product, diameter, embedment, concrete |
| API 617 | governing edition per the purchaser's datasheet | Part 2, Annex E (combined resultant at each connection, E.1b, USC) | coefficient a of 3·Fr + Mr ≤ a·De for a compressor connection | connection, units |
| API 611 | governing edition per the purchaser's datasheet | Annex I (I.1b, USC) | coefficient of 3·FR + MR ≤ a·De for a general-purpose steam turbine connection | connection, units |
| API 612 | governing edition per the purchaser's datasheet | Annex D (D.1b, USC) | coefficient of 3·FR + MR ≤ a·De for a special-purpose steam turbine connection | connection, units |
| NEMA SM 23 | edition held by the owner | Allowable forces and moments on steam turbine connections (combined resultant equation) | coefficient of the legacy SM 23 combined resultant equation | connection, units |
| API 650 | governing edition per the project specification | Annex P, Figures P.4a / P.4b (YF, YL, YC) and the Annex P nomograms | stiffness coefficients and nomogram acceptance for a tank shell opening | a, R, t, L |
Limits
- One row per call; two bracketing tabulated entries only when a temperature is interpolated. No wildcard or pattern keys.
list_keysreturns at most 50 identifiers per call and never values.- Anonymous: 300 calls per day per network address, of which 50 worked examples. Signed in (paid datasets): 60 lookups per dataset and 400 in total per account per day. Days are UTC.
Your assistant's data settings
Two requirements apply to using the connector for paid datasets:
- A paid account. Values from paid datasets are returned only to a signed-in Piping Toolset account on the tier shown in the table below. Free accounts and anonymous callers receive pointers, structure and free data only.
- An assistant account that does not train on your conversations. For the ASME code-table values this connector returns, use the connector only from an assistant account configured not to use your conversations for model training: for example a consumer account with the training opt-out turned on, or a Team, Enterprise or API plan. You confirm this on the sign-in page, and it is a condition of using the connector for those values.
What is sent and logged
Your assistant sends only the lookup keys of each call (for example standard, material, temperature and size), never your calculation inputs or files. The server stores no inputs or results. Each call is logged with the tool name, dataset id, result code, response time, a daily-rotating hash of the caller's IP address and the client's user agent; those logs follow Netlify's function-log retention. Your assistant provider processes the results under its own terms. See the privacy policy and terms of use.
Before you issue
Every value carries a verify_at line naming the page to check. Confirm each value against
the printed page of your copy of the standard before it goes into an issued calculation. The connector
is an engineering aid; results must be reviewed by a qualified engineer.